subject:(Sawdust)

Anna University

1. Raffiea Baseri, J. Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -.

Degree: Chemical Engineering, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/25396

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Wastewater from textile industries pose a threat to the environment newlineas large amount of chemically different dyes are used for various industrial newlineapplications such as… (more)

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Wastewater from textile industries pose a threat to the environment newlineas large amount of chemically different dyes are used for various industrial newlineapplications such as textile dyeing and a significant proportion of these dyes newlineenter the environment via wastewater Many treatment processes have been newlineapplied for the removal of dyes from wastewater such as: photocatalytic newlinedegradation cation exchange membranes electrochemical degradation newlinereverse osmosis ozonation and adsorption As synthetic dyes in wastewater newlinecannot be efficiently decolorized by traditional methods the adsorption of newlinesynthetic dyes on inexpensive and efficient solid supports was considered as a newlinesimple and economical method for their removal from wastewater The newlineconversion of the agriculture wastes into activated carbon will decrease the newlinewaste disposal and also convert these wastes into valueadded product newlineThe precursor Thevetia Peruviana an abundantly available plant newlinewith no economical importance can be conveniently used for the preparation newlineof nine activated carbon by various physical and chemical activation methods newlineThe Polyaniline Coated sawdust PAC and Polypyrrole Coated sawdust newlinePPC were also synthesized on the surface of Thevetia Peruviana sawdust newlineThe physico chemical properties of all the nine different carbons newlinewere compared with PAC and PPC The activated carbon prepared from newlineH3PO4 impregnation method TPAC3 was selected to be the best in terms of newlineits properties among the nine activated carbon prepared The pore size newlinedistribution studies of the adsorbents indicated that the adsorbents are newlinemesoporous in nature The surface morphology of the activated carbon newlineTPAC3 by SEM analysis showed the honey comb like structure with large newlinenumber of pores The surface of the PAC and PPC by SEM analysis showed newlinethat sawdust was coated with polyaniline and polypyrrole particles which newlinewere spherical in shape with holes in the centre The surface has large newlinesurface area with more number of mesopores which was the main factor for newlinebetter adsorption capacity of TPAC3 PAC and PPC newline

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Advisors/Committee Members: palanisamy, P N.

Subjects/Keywords: Activated Carbon; Adsorption; Aqueous Solutions; Polymer Coated; Sawdust; Textile Dyes

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Raffiea Baseri, J. (2013). Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/25396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Raffiea Baseri, J. “Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -.” 2013. Thesis, Anna University. Accessed April 16, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/25396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Raffiea Baseri, J. “Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -.” 2013. Web. 16 Apr 2021.

Vancouver:

Raffiea Baseri J. Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Apr 16]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Raffiea Baseri J. Comparative studies on the adsorption of textile dyes from aqueous solutions using activated carbon and polymer coated sawdust; -. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brigham Young University

2. Lewis, Aaron D. Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates.

Degree: MS, 2011, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3497&context=etd

► Clean and efficient electricity can be generated using an Integrated Gasification Combined Cycle (IGCC). Although IGCC is typically used with coal, it can also be… (more)

▼ Clean and efficient electricity can be generated using an Integrated Gasification Combined Cycle (IGCC). Although IGCC is typically used with coal, it can also be used to gasify other carbonaceous species like biomass and petroleum coke. It is important to understand the pyrolysis and gasification of these species in order to design commercial gasifiers and also to determine optimal conditions for operation. High heating-rate (100,000 K/s) pyrolysis experiments were performed with biomass (sawdust) in BYU's atmospheric flat-flame burner reactor at conditions ranging from 1163 to 1433 K with particle residence times ranging from 23 to 102 ms. Volatile yields and mass release of the sawdust were measured. The measured pyrolysis yields of sawdust are believed to be similar to those that would occur in an industrial entrained-flow gasifier since biomass pyrolysis yields depend heavily on heating rate and temperature. Sawdust pyrolysis was modeled using the Chemical Percolation Devolatilization model assuming that biomass pyrolysis occurs as a weighted average of its individual components (cellulose, hemicellulose, and lignin). Thermal cracking of tar into light gas was included using a first-order kinetic model. The pyrolysis and CO2 gasification of petroleum coke was studied in a pressurized flat-flame burner up to 15 atm for conditions where the peak temperature ranged from 1402 to 2139 K. The measured CO2 gasification kinetics are believed to be representative of those from an entrained-flow gasifier since they were measured in similar conditions of elevated pressure and high heating rates (100,000 K/s). This is in contrast to the gasification experiments commonly seen in the literature that have been carried out at atmospheric pressure and slow particle heating rates. The apparent first-order Arrhenius kinetic parameters for the CO2 gasification of petroleum coke were determined. From the experiments in this work, the ASTM volatiles value of petroleum coke appeared to be a good approximation of the mass release experienced during pyrolysis in all experiments performed from 1 to 15 atm. The reactivity of pet coke by CO2 gasification exhibited strong pressure dependence.

Subjects/Keywords: biomass pyrolysis; sawdust pyrolysis petroleum coke; gasification; Chemical Engineering

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APA (6^th Edition):

Lewis, A. D. (2011). Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3497&context=etd

Chicago Manual of Style (16^th Edition):

Lewis, Aaron D. “Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates.” 2011. Masters Thesis, Brigham Young University. Accessed April 16, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3497&context=etd.

MLA Handbook (7^th Edition):

Lewis, Aaron D. “Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates.” 2011. Web. 16 Apr 2021.

Vancouver:

Lewis AD. Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates. [Internet] [Masters thesis]. Brigham Young University; 2011. [cited 2021 Apr 16]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3497&context=etd.

Council of Science Editors:

Lewis AD. Sawdust Pyrolysis and Petroleum Coke CO2 Gasification at High Heating Rates. [Masters Thesis]. Brigham Young University; 2011. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=3497&context=etd

University of KwaZulu-Natal

3. Andrew, Jerome Edward. Beneficiation of sawdust waste material within the context of an integrated forest biorefinery.

Degree: 2018, University of KwaZulu-Natal

URL: https://researchspace.ukzn.ac.za/handle/10413/18163

► Wood waste streams such as sawdust are composed of potentially high value products and finding alternative and innovative uses for them may transform the face… (more)

▼ Wood waste streams such as sawdust are composed of potentially high value products and finding alternative and innovative uses for them may transform the face of Forestry, Timber, Pulp and Paper (FTPP) industry, both economically and environmentally. Currently, a large portion of these waste streams are either stockpiled on site or landfilled, and these are not sustainable options for waste disposal going into the future. The diversion of all organic waste from landfill has now become a priority in South Africa. Within the context of the biorefinery concept, and in direct response to the afore-mentioned priority, the key focus of this study was to explore options for the beneficiation of sawdust waste streams produced primarily, but not exclusively, from the sawmilling industry. Two options were investigated, with the primary objective being to investigate the production of cellulose nanocrystals (CNC) from sawdust waste material. Cellulose nanocrystals are nanoparticles (<100 nm) that have impressive mechanical, optical and rheological properties. As a result, they have potential applications in several industries such as the automotive, construction, paper, medical, food, environmental and industrial sectors. Typically, CNC are produced from high purity cellulose products via one of several processes that degrade the amorphous regions of cellulose leaving behind the crystalline CNC. This dissertation presents a novel technology that combines ammonium persulphate (APS) oxidation with acid hydrolysis (AH) to produce CNC directly from wood sawdust, without the need for pre-treatment stages such as pulping and bleaching that are conventionally used for the isolation of cellulose from wood. In the novel (APS+AH) process, the sawdust was treated with 3 M APS solution at 60°C for 6 h, thereafter followed by AH of the residual material with 64% sulphuric acid at 50°C for 1-2 h. Cellulose nanocrystals with dimensions ranging between 122-213 nm in length and 4-6 nm in width were produced. Their characterisation by Fourier transform infrared (FTIR) spectroscopy, and comparison to model compounds for CNC produced by acid hydrolysis of microcrystalline cellulose (MCC), confirmed that the structural and compositional integrity of cellulose was not compromised following the (APS+AH) process. The resulting CNC also exhibited high crystallinity (81%), as revealed by X-ray diffraction (XRD) analysis, and high thermal stability (320°C), as revealed by thermogravimetric (TG) analysis. These are all important pre-requisites for most thermoplastic composite applications. In addition, a CNC yield of 40% was achieved, which when expressed as a percentage of the original wood, represented a four-fold increase in yield compared to conventional processes that are used for CNC production and which make use of acid hydrolysis and wood derived cellulose products as the starting material. As part of the process to delignify and isolate cellulose from sawdust prior to the production of CNC, the second objective of… Advisors/Committee Members: Sithole, Bishop Bruce. (advisor).

Subjects/Keywords: Wood waste.; Sawdust.; Biorefinery.; Cellulose nanocrystals.; Kraft pulps.; Cellulose structure.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Andrew, J. E. (2018). Beneficiation of sawdust waste material within the context of an integrated forest biorefinery. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/18163

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Andrew, Jerome Edward. “Beneficiation of sawdust waste material within the context of an integrated forest biorefinery.” 2018. Thesis, University of KwaZulu-Natal. Accessed April 16, 2021. https://researchspace.ukzn.ac.za/handle/10413/18163.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Andrew, Jerome Edward. “Beneficiation of sawdust waste material within the context of an integrated forest biorefinery.” 2018. Web. 16 Apr 2021.

Vancouver:

Andrew JE. Beneficiation of sawdust waste material within the context of an integrated forest biorefinery. [Internet] [Thesis]. University of KwaZulu-Natal; 2018. [cited 2021 Apr 16]. Available from: https://researchspace.ukzn.ac.za/handle/10413/18163.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Andrew JE. Beneficiation of sawdust waste material within the context of an integrated forest biorefinery. [Thesis]. University of KwaZulu-Natal; 2018. Available from: https://researchspace.ukzn.ac.za/handle/10413/18163

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kwame Nkrumah University of Science and Technology

4. Mensah, P. Y.; Kuffour, R. A.; Baidoo, P. K. The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge.

Degree: 2013, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11091

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The use of raw sludge spread on land as conditioner and fertilizer has been practised over the years in urban agriculture. However, this raw sludge… (more)

Subjects/Keywords: biosolids; faecal sludge; pathogens; public toilet sludge; sawdust; septage

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APA (6^th Edition):

Mensah, P. Y.; Kuffour, R. A.; Baidoo, P. K. (2013). The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11091

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mensah, P. Y.; Kuffour, R. A.; Baidoo, P K. “The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge.” 2013. Thesis, Kwame Nkrumah University of Science and Technology. Accessed April 16, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11091.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mensah, P. Y.; Kuffour, R. A.; Baidoo, P K. “The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge.” 2013. Web. 16 Apr 2021.

Vancouver:

Mensah, P. Y.; Kuffour, R. A.; Baidoo PK. The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2013. [cited 2021 Apr 16]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11091.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mensah, P. Y.; Kuffour, R. A.; Baidoo PK. The effect of different percentages of bulking agent (sawdust) on microbial quality of faecal sludge. [Thesis]. Kwame Nkrumah University of Science and Technology; 2013. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11091

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kwame Nkrumah University of Science and Technology

5. Nkansah, Marian Asantewah; Donkoh, Moses; Akoto, Osei. Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water.

Degree: 2019, Kwame Nkrumah University of Science and Technology

URL: Emerging Science Journal, DOI: http://dx.doi.org/10.28991/esj-2019-01166 ; http://dspace.knust.edu.gh:8080/jspui/handle/123456789/12395

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Phosphorus is one of the key nutrients that contribute to eutrophication and excess algal growth in rivers and lakes and other surface water bodies. Such… (more)

Subjects/Keywords: Sawdust;

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nkansah, Marian Asantewah; Donkoh, Moses; Akoto, O. (2019). Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from Emerging Science Journal, DOI: http://dx.doi.org/10.28991/esj-2019-01166 ; http://dspace.knust.edu.gh:8080/jspui/handle/123456789/12395

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nkansah, Marian Asantewah; Donkoh, Moses; Akoto, Osei. “Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water.” 2019. Thesis, Kwame Nkrumah University of Science and Technology. Accessed April 16, 2021. Emerging Science Journal, DOI: http://dx.doi.org/10.28991/esj-2019-01166 ; http://dspace.knust.edu.gh:8080/jspui/handle/123456789/12395.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nkansah, Marian Asantewah; Donkoh, Moses; Akoto, Osei. “Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water.” 2019. Web. 16 Apr 2021.

Vancouver:

Nkansah, Marian Asantewah; Donkoh, Moses; Akoto O. Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2019. [cited 2021 Apr 16]. Available from: Emerging Science Journal, DOI: http://dx.doi.org/10.28991/esj-2019-01166 ; http://dspace.knust.edu.gh:8080/jspui/handle/123456789/12395.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nkansah, Marian Asantewah; Donkoh, Moses; Akoto O. Preliminary Studies on the Use of Sawdust and Peanut Shell Powder as Adsorbents for Phosphorus Removal from Water. [Thesis]. Kwame Nkrumah University of Science and Technology; 2019. Available from: Emerging Science Journal, DOI: http://dx.doi.org/10.28991/esj-2019-01166 ; http://dspace.knust.edu.gh:8080/jspui/handle/123456789/12395

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu

6. Božić, Dragana. Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa.

Degree: Tehnički fakultet u Boru, 2018, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:15501/bdef:Content/get

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Metalurško inženjerstvo - Ekstraktivna metalurgija / Metallurgical Engineering - Extractive Metallurgy

U disertaciji su prikazani rezultati adsorpcije jona teških metala iz sintetičkih i realnih vodenih… (more)

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Metalurško inženjerstvo - Ekstraktivna metalurgija / Metallurgical Engineering - Extractive Metallurgy

U disertaciji su prikazani rezultati adsorpcije jona teških metala iz sintetičkih i realnih vodenih rastvora korišćenjem trine različitih vrsta drveta (bukva, topola, lipa) kao adsorbensa. Eksperimenti adsorpcije su izvođeni u reaktoru sa mešanjem i u adsorpcionoj koloni. Izvršena je karakterizacija trine; određene su fizičke, hemijske i fizičko-hemijske osobine. Određen je sadržaj organskih materija u vodi od ispiranja trine destilisanom vodom na osnovu hemijske potrošnje kiseonika (HPK). Dobijena vrednost za HPK je iznosila 0,8 mgO2 dm-3 za trinu bukve, 7,1 mgO2 dm-3 za trinu lipe, 8,4 mgO2 dm-3 za trinu topole. Određen je sadržaj alkalnih i zemnoalkalnih metala, pre i nakon ispiranja trine destilisanom vodom, kao i nakon zasićenja datim jonima metala. Određen je i kapacitet izmene katjona (KIK) između trine (bukve) i vodene faze, standardnom metodom jonske izmene sa NH4Cl. Ukupni KIK iznosio je 1,45 mmol Mez+/g trine (Mez+ ovde predstavlja jone alkalnih i zemnoalkalnih metala). Na osnovu dobijenih rezultata za KIK dominantan jon u izmenjivom položaju je Ca2+ jon. Određena je tačka nultog naelektrisanja (pHzpc), pri čemu je dobijena vrednost 7,4 za koncentraciju 0,1 M KNO3, odnosno 7,2 za koncentraciju 0,01 M KNO3. Do porasta pH vrednosti rastvora, tokom ispiranja trine destilisanom vodom, dolazi usled prelaska H+ jona iz vodene faze u strukturu trine, gde bivaju izmenjeni sa Ca2+ jonima. Porast provodljivosti rastvora, tokom ispiranja trine destilisanom vodom posledica je porasta koncentracije Na+, K+, Ca2+ i Mg2+ jona u rastvoru koji se ispiranjem samoizlužuju i prelaze iz strukture trine u vodenu fazu. Maksimalni kapacitet adsorpcije od 9,6 mg g-1 trine dobijen je za adsorpciju Pb2+ jona na trini, dok je kapacitet adsorpcije Cu2+, Ni2+, Cd2+, Zn2+ , Mn2+ i Fe2+ jona na trini iznosio 4,5 mg g-1, 4 mg g−1 i 2,45 mg g−1, 2 mg g−1, 1 mg g−1 i 0,35 mg g−1 redom. Uočava se da tokom adsorpcije jona Cu2+, Ni2+ i Zn2+ u koloni dolazi do značajnog povećanja pH. Ovakvo ponašanje rezultat je koadsorpcije jona bakra...

Advisors/Committee Members: Štrbac, Nada, 1964-.

Subjects/Keywords: heavy metals; sawdust; adsorption; adsorption mechanism; adsorption kinetics; adsorption isotherms

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Božić, D. (2018). Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:15501/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Božić, Dragana. “Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa.” 2018. Thesis, Univerzitet u Beogradu. Accessed April 16, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:15501/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Božić, Dragana. “Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa.” 2018. Web. 16 Apr 2021.

Vancouver:

Božić D. Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa. [Internet] [Thesis]. Univerzitet u Beogradu; 2018. [cited 2021 Apr 16]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:15501/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Božić D. Adsorpcija jona teških metala iz vodenih rastvora korišćenjem trine listopadnih vrsta drveta kao adsorbensa. [Thesis]. Univerzitet u Beogradu; 2018. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:15501/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

7. Korčián, Michal. Vodorovný pásový dopravník: Horizontal belt conveyor.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/3805

► This bachelor’s project treats about construction of horizontal belt conveyor for metal sawdust transportation from producing machine to 5 meters distance. There is functional calculation… (more)

Subjects/Keywords: Vodorovný pasový dopravník; kovové třísky.; Horizontal belt conveyor; metal sawdust.

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APA (6^th Edition):

Korčián, M. (2018). Vodorovný pásový dopravník: Horizontal belt conveyor. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/3805

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Korčián, Michal. “Vodorovný pásový dopravník: Horizontal belt conveyor.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/3805.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Korčián, Michal. “Vodorovný pásový dopravník: Horizontal belt conveyor.” 2018. Web. 16 Apr 2021.

Vancouver:

Korčián M. Vodorovný pásový dopravník: Horizontal belt conveyor. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/3805.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Korčián M. Vodorovný pásový dopravník: Horizontal belt conveyor. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/3805

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

8. Shelford, James Arthur. Utilization of alder sawdust by sheep and cattle.

Degree: MS- MSc, Animal Science, 1969, University of British Columbia

URL: http://hdl.handle.net/2429/35235

► Twenty-eight beef-type animals were divided into four groups and fed four rations consisting of equal amounts of basal ration, to which increments of alder sawdust… (more)

▼ Twenty-eight beef-type animals were divided into four groups and fed four rations consisting of equal amounts of basal ration, to which increments of alder sawdust (Alnus rubra) were added (0, 13%, 21%, and 35%) (Experiment I). The addition of the sawdust had no significant effect on total gain although the three groups of animals receiving sawdust in their diet had a higher rate of gain than the group receiving no sawdust. The effects of the ration on the carcass grade and the acceptability (tenderness and juiciness) of the meat as studied by a trained taste panel, were non-significant. When the rations used in the above trial were subjected to a digestion trial using mature wethers, the results coincided with the growth data collected from the steers used above. If the digestion of the basal rations were taken as constant, the wood material had a digestion coefficient ranging from 46.5% to 13.5%, depending on the level of sawdust in the diet. It was felt that a figure of 13% digestion for sawdust was close to being correct, and that the variation in measurement of the digestion of sawdust was due to the increased utilization of the basal ration when the sawdust was present. Analysis of the rumen fluid of the steers in the growth trial for total and individual volatile fatty acids (VFA) showed a decrease (p<.05) in the molar percent of propionic acid as the level of wood in the diet increased, while the total concentration of VFA and the molar percent acetic acid remained relatively constant. Thirty-six yearling Hereford steers, assigned to six treatments consisting of a basal ration and three roughage sources (hay (H), alder sawdust (W), and extruded alder sawdust (E)), fed at two levels (15% and 20%), were used in a study to determine the effect of heat and pressure treatment of wood on the utilization. The growth of the animals on the H rations was significantly (p< .01) greater than those on the other treatments. The effect of treating the sawdust by extruding it was non-significant although the animals on the extruded wood diet had a slight increase in gain over those on the W ration. The effect of level of roughage was nonsignificant. The effects of level of protein in the diet and the interaction with roughage source were studied. Protein levels of 13% and 15% were studied, along with two roughage sources (hay (H), and alder sawdust (W)), fed at two levels (15% and 20%). The H rations again had a significantly (p<.01) greater gain. The effect of increasing the protein level in the diet was found to be non-significant. When the above rations were subjected to analysis using the in vitro technique, results showed that the H rations had a significantly (p < .01) higher digestion than either the W or E rations. It was also found that the E rations had a higher digestion coefficient than the W rations (p <«05). Increasing the roughage level from 15% to 20% caused a significant (p<.01) decrease in digestion. When the same rations were subjected to an in vivo digestion study using growing wethers, the…

Subjects/Keywords: Feeds; Sawdust as feed

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Shelford, J. A. (1969). Utilization of alder sawdust by sheep and cattle. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/35235

Chicago Manual of Style (16^th Edition):

Shelford, James Arthur. “Utilization of alder sawdust by sheep and cattle.” 1969. Masters Thesis, University of British Columbia. Accessed April 16, 2021. http://hdl.handle.net/2429/35235.

MLA Handbook (7^th Edition):

Shelford, James Arthur. “Utilization of alder sawdust by sheep and cattle.” 1969. Web. 16 Apr 2021.

Vancouver:

Shelford JA. Utilization of alder sawdust by sheep and cattle. [Internet] [Masters thesis]. University of British Columbia; 1969. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/2429/35235.

Council of Science Editors:

Shelford JA. Utilization of alder sawdust by sheep and cattle. [Masters Thesis]. University of British Columbia; 1969. Available from: http://hdl.handle.net/2429/35235

9. Jane Eliza de Almeida Lacombe. Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil.

Degree: 2015, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/102/102131/tde-08032016-100536/

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As placas de madeira aglomerada, amplamente empregadas para fabricação de móveis, estão consolidadas no mercado, mas merecem especial atenção devido ao seu alto custo quanto… (more)

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As placas de madeira aglomerada, amplamente empregadas para fabricação de móveis, estão consolidadas no mercado, mas merecem especial atenção devido ao seu alto custo quanto aos adesivos empregados e principalmente à vulnerabilidade à umidade se caso entre em contato com a mesma. Diante os fatos, este trabalho apresenta uma nova alternativa de adesivo, empregado por meio de aparas de isopor (EPS), largamente encontrados como resíduos, e o mesmo, ao envolver as partículas de madeira, material também empregado para a fabricação dos painéis, o torna apto para emprego em ambientes ligados diretamente à umidade, sejam eles internos ou externos à edificação. Com isso, o presente trabalho apresenta a elaboração e a proposta de utilização de um novo produto em forma de painel de madeira, produzido com serragem residual de serrarias, como partículas, e EPS (isopor) dissolvido, como adesivo, que possam ser empregados também na construção civil. Assim, foram produzidos painéis com quatro espécies de resíduos de madeira: pinus, eucalipto, teca e peroba. De cada uma das amostras, foram confeccionados dez painéis para a avaliação das características física, mecânica e outros ensaios. Dos resultados de caracterização física, pode-se concluir que os painéis estão conforme padrões exigidos pela norma brasileira NBR 14.810-2 - \"Chapas de madeira aglomeradad̈a ABNT (2006b), e, devido aos baixos valores de inchamento, são adequados à utilização em ambientes úmidos e/ou externos. Dos resultados de caracterização mecânica, os painéis apresentaram bons resultados quanto à ligação interna e compressão, indicando ser promissor o uso de isopor como adesivo bem como sua utilização atrelada a painéis de fechamento. Entretanto, como os resultados de flexão estática não foram satisfatórios, prova-se que tais painéis não podem ser solicitados estruturalmente. Quanto aos outros ensaios realizados, todos os resultados foram favoráveis e, se utilizados conforme especificações técnicas, tornam-se coerentes para empregos em edificação. Como resultado, observou-se que os painéis podem ser produzidos e utilizados no mercado da construção civil, certificando que o produto pode ser empregado de forma segura, desde que sejam conhecidas suas funções, tempo de uso e manutenções necessárias. Desta forma, pretende-se contribuir para a produção e a análise de novos materiais que possam colaborar com a melhoria ambiental.

The particleboards, which are widely employed to manufacturing furniture, are established in the market, but they deserve a special attention due to their high cost considering the adhesives used on them and, paramountly, due to their vulnerability to humidity if on contact with their own parts. Facing the facts, this work presents a new alternative adhesive, applied with Styrofoam trims (EPS), usually found as residues, it may be used for involving the particles of wood, which are also used for manufacturing of the panels, and it makes it suitable for the use in environments directly related to humidity, whether it is internal or…

Advisors/Committee Members: Eduvaldo Paulo Sichieri, Kelen Almeida Dornelles, Francisco Antonio Rocco Lahr, Norman Barros Logsdon, Maria Fátima do Nascimento.

Subjects/Keywords: Adesivos; Aglomerados; EPS; Resíduos; Serragem; Adhesives; EPS; Particleboard; Residues; Sawdust

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lacombe, J. E. d. A. (2015). Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/102/102131/tde-08032016-100536/

Chicago Manual of Style (16^th Edition):

Lacombe, Jane Eliza de Almeida. “Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil.” 2015. Doctoral Dissertation, University of São Paulo. Accessed April 16, 2021. http://www.teses.usp.br/teses/disponiveis/102/102131/tde-08032016-100536/.

MLA Handbook (7^th Edition):

Lacombe, Jane Eliza de Almeida. “Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil.” 2015. Web. 16 Apr 2021.

Vancouver:

Lacombe JEdA. Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil. [Internet] [Doctoral dissertation]. University of São Paulo; 2015. [cited 2021 Apr 16]. Available from: http://www.teses.usp.br/teses/disponiveis/102/102131/tde-08032016-100536/.

Council of Science Editors:

Lacombe JEdA. Painéis de madeira aglomerada produzidos com resíduos de serragem e poliestireno expandido para aplicações na construção civil. [Doctoral Dissertation]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/102/102131/tde-08032016-100536/

10. Guidigo, Jonathan. Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite.

Degree: Docteur es, Sciences du bois et des fibres, 2017, Université de Lorraine; Université d'Abomey-Calavi (Bénin)

URL: http://www.theses.fr/2017LORR0229

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La présente étude fait suite à d’autres qui proposent une solution de récupération des déchets plastiques et de bois pour en faire un matériau de… (more)

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La présente étude fait suite à d’autres qui proposent une solution de récupération des déchets plastiques et de bois pour en faire un matériau de construction en composite bois-polymère. La particularité de ce travail de recherche est que la matrice thermoplastique utilisée est un ensemble de différents polymères pris dans des proportions bien définies. Les pourcentages considérés pour la matrice obtenue représentent les parts de déchets de polymères que l’on retrouve dans la ville de Cotonou (Bénin). Cette étude a consisté à fabriqué des échantillons de composite bois polymère CBP par extrusion, à les étudier à travers des tests physico-mécaniques et à les mettre en relation avec les échantillons fabriqués avec une méthode artisanale déjà existante. D’une part, nous avons étudié séparément la sciure de bois et la matrice thermoplastique en déterminant les constituants chimiques de la sciure de bois, et en effectuant une analyse physico-mécanique (analyse thermogravimétrique, test en flexion compression et traction, analyse du faciès de rupture au MEB) sur le renfort et la matrice. D’autre part nous avons évalué l’influence de l’ajout de 20%, 25%, 28% et 30% de sciure de bois sur les propriétés mécaniques (compression, flexion et traction). Les résultats obtenus révèlent que la sciure de bois se comporte comme un renfort lorsque l’échantillon est sollicité en compression et en flexion. La sciure de bois joue le rôle de charge lorsque les échantillons de CBP sont sollicités en traction. Par ailleurs, la sciure de bois améliore la rigidité des CBP en traction. Les résultats mécaniques obtenus par extrusion sont nettement meilleurs que ceux issus des méthodes de fabrication artisanale. Les analyses thermogravimétriques effectuées sur les échantillons de CBP issus de la méthode artisanale révèlent que lors de leur fabrication, ces échantillons sont soumis à des températures (supérieure à 300°C) qui entament la dégradation des polymères et de la sciure de bois dans les CBP

This study follow others that propose a solution for the recovery of plastic waste and wood to make it a construction material made of wood-polymer composite. The particularity of this research is that the thermoplastic matrix used is a set of different polymers taken in well-defined proportions. The percentages considered for the matrix obtained represent the proportion of polymer waste that can be found in the city of Cotonou (Benin Republic). This study consisted in making WPC polymer wood composite samples by extrusion, studying them through physico-mechanical tests and relating them to samples made with an already existing artisanal method. On the one hand, we studied separately the sawdust and the thermoplastic matrix by determining the chemical constituents of the sawdust, and by performing a physico-mechanical analysis (thermogravimetric analysis, compression and tensile bending test, facies analysis). SEM fracture) on the reinforcement and the matrix. On the other hand we evaluated the influence of the addition of 20%, 25%, 28% and 30% of…

Advisors/Committee Members: Merlin, André (thesis director), Adjovi, Edmond (thesis director).

Subjects/Keywords: Composite bois polymère; Sciure de bois; Propriétés mécaniques; Wood plastic composite; Sawdust; Mechanical properties; 620.12

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Guidigo, J. (2017). Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite. (Doctoral Dissertation). Université de Lorraine; Université d'Abomey-Calavi (Bénin). Retrieved from http://www.theses.fr/2017LORR0229

Chicago Manual of Style (16^th Edition):

Guidigo, Jonathan. “Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite.” 2017. Doctoral Dissertation, Université de Lorraine; Université d'Abomey-Calavi (Bénin). Accessed April 16, 2021. http://www.theses.fr/2017LORR0229.

MLA Handbook (7^th Edition):

Guidigo, Jonathan. “Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite.” 2017. Web. 16 Apr 2021.

Vancouver:

Guidigo J. Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite. [Internet] [Doctoral dissertation]. Université de Lorraine; Université d'Abomey-Calavi (Bénin); 2017. [cited 2021 Apr 16]. Available from: http://www.theses.fr/2017LORR0229.

Council of Science Editors:

Guidigo J. Caractérisation physico-mécanique d’un composite bois polymère : Physical and mechanical characterization of wood polymer composite. [Doctoral Dissertation]. Université de Lorraine; Université d'Abomey-Calavi (Bénin); 2017. Available from: http://www.theses.fr/2017LORR0229

Univerzitet u Beogradu

11. Paunović, Svetlana M., 1969 -. Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.).

Degree: Poljoprivredni fakultet, 2016, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:10435/bdef:Content/get

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Биотехничке науке - Помологија / Biotechnical sciences - Pomology

Предмет истраживања докторске дисертације је проучавање утицаја различитих начина одржавања земљишта у засаду црне рибизле на… (more)

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Биотехничке науке - Помологија / Biotechnical sciences - Pomology

Предмет истраживања докторске дисертације је проучавање утицаја различитих начина одржавања земљишта у засаду црне рибизле на биолошке и производне особине шест испитиваних сорти. На основу добијених резултата утврђен је најповољнији начин одржавања земљишта који се може препоручити за примену у производној пракси у склопу савремене технологије гајења црне рибизле. Такође, извршен је избор сорти које се одликују високим и стабилним приносима и највреднијим сензоричким, нутритивним и антиоксидативним својствима плодова. Експериментална проучавања обављена су у трогодишњем периоду, од 2012. до 2014. године, у огледном засаду црне рибизле који је подигнут у пролеће 2011. године на објекту „Чачак“ Института за воћарство у Чачку. Огледом је обухваћено шест сорти црне рибизле, и то: Бен ломонд, Бен сарек, Чачанска црна, Титанија, Тибен и Тисел. У засаду су примењена три начина одржавања земљишта: 1) одржавање земљишта у виду јаловог угара, тј. стална обрада земљишта; 2) одржавање земљишта застирањем струготином и 3) одржавање земљишта застирањем црном полиетиленском фолијом. Током трогодишњег периода испитивања праћено је укупно 67 параметара, који су груписани у 6 целина, и то: 1. Фенолошке особине (почетак листања, пуно листање, појава цвасти, почетак цветања, пуно цветање, почетак заметања бобица и сазревање бобица); 2. Вегетативни потенцијал (број избојака по жбуну, дужина избојака, дужина новоформираних избојака, висина жбуна, ширина жбуна, индекс облика жбуна и запремина жбуна); 3. Генеративни потенцијал (број родних пупољака по жбуну, број цвасти по родном пупољку, број цвасти по жбуну, број цветова у цвасти, број бобица у грозду, проценат заметања бобица, број гроздова по жбуну, принос по жбуну и принос по јединици површине); 4. Физичке особине грозда и плода (маса бобица, маса грозда и дужина грозда); 5. Хемијске особине плодова (примарни и секундарни метаболити плодова, витамини и минералне материје)...

Advisors/Committee Members: Nikolić, Mihailo, 1954-.

Subjects/Keywords: black currant; cultivar; bare fallow; foil; sawdust; vegetative growth potential; yield; fruit quality

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Paunović, Svetlana M., 1. -. (2016). Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.). (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:10435/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Paunović, Svetlana M., 1969 -. “Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.).” 2016. Thesis, Univerzitet u Beogradu. Accessed April 16, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:10435/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Paunović, Svetlana M., 1969 -. “Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.).” 2016. Web. 16 Apr 2021.

Vancouver:

Paunović, Svetlana M. 1-. Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.). [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Apr 16]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:10435/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Paunović, Svetlana M. 1-. Утицај начина одржавања земљишта на биолошке и производне особине сорти црне рибизле (Ribes nigrum L.). [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:10435/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. Dessbesell, Luana. VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO.

Degree: 2014, Universidade Federal de Santa Maria; Programa de Pós-Graduação em Engenharia Florestal; UFSM; BR; Recursos Florestais e Engenharia Florestal

URL: http://repositorio.ufsm.br/handle/1/8753

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

The utilization of biomass to generate energy has been discussed as an alternative to supply worldwide demand.… (more)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

The utilization of biomass to generate energy has been discussed as an alternative to supply worldwide demand. The use of forest residues stands out as a renewable source of energy. The utilization of forest residues such as sawdust to produce pellets brings advantages if compared to the original form of the residue s usage. The pellets have a higher energy per volume unit due to lower moisture content and compression process by which the waste is subjected. Therefore, this study discusses environmental and social aspects and an economic evaluation of pellets production in the Hydrographic Basin of Rio Pardo, while seeking for complementary alternatives to firewood used in Tobacco curing. The volume of wood processed and the number of sawmills were used to estimate the amount in tons of sawdust. Samples of sawdust were collected and the chemical composition and immediate were analyzed to characterize it. As economic evaluation criterion used the NPV, IRR, CMPR, Marginal Cost and Break-even Point. The energy density parameter was used to compare the use of pellets and firewood in tobacco curing. The daily amount of sawdust available was estimated in 69.82 tons, which can produce 11,733.12 tons of pellets each year. A financial overview demonstrated the viability of the investment showing NPV results at R 4.72 million and IRR 34.59% over a 10 year s cash flow budget with a discount rate of 10.9% a year. The Average Cost came to R 153.77 a ton, biomass and depreciation were the main partakers in this cost. If the availability of biomass improves the pellets factory can increase the number of work shifts operations and the amount produced, turning it a more attractive investment. The Marginal Cost was R 2.66 million a year and the Break-even Point was 5444.4 tones each year. In the Tobacco curing process pellets provide a biomass economy of 82.66% when they replace sawdust and 45.60% when firewood. In this scenario the use of pellets for Tobacco curing reduce 16.19% of the firewood purchased from outside of Hydrographic Basin and save 33.8 thousand cubic meters of firewood each year. In the Hydrographic Basin of Rio Pardo pellets utilization will bring operational benefits to Tobacco farmers in the curing process. The production of pellets in the Hydrographic Basin of Rio Pardo is sustainable because it is economic social and environmental viable.

O aproveitamento da biomassa para geração de energia tem sido pauta de discussões quanto a alternativas para suprir as demandas mundiais. O aproveitamento de resíduos florestais recebe destaque por ser uma fonte renovável de energia. O uso de resíduos florestais, como a serragem, para a produção de pellets traz vantagens em comparação ao uso do resíduo na forma original. Os pellets apresentam maior energia por unidade de volume, devido ao menor teor de umidade e ao processo de compressão a que o resíduo é submetido. Portanto, nesse estudo foram discutidos os aspectos ambientais e sociais e a viabilidade…

Advisors/Committee Members: Farias, Jorge Antonio de, Quadros, Dagoberto Stein de, Pedrazzi, Cristiane.

Subjects/Keywords: Pellets; Serragem; Fumicultura; Pellets; Sawdust; Tobacco farmers; CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dessbesell, L. (2014). VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO. (Masters Thesis). Universidade Federal de Santa Maria; Programa de Pós-Graduação em Engenharia Florestal; UFSM; BR; Recursos Florestais e Engenharia Florestal. Retrieved from http://repositorio.ufsm.br/handle/1/8753

Chicago Manual of Style (16^th Edition):

Dessbesell, Luana. “VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO.” 2014. Masters Thesis, Universidade Federal de Santa Maria; Programa de Pós-Graduação em Engenharia Florestal; UFSM; BR; Recursos Florestais e Engenharia Florestal. Accessed April 16, 2021. http://repositorio.ufsm.br/handle/1/8753.

MLA Handbook (7^th Edition):

Dessbesell, Luana. “VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO.” 2014. Web. 16 Apr 2021.

Vancouver:

Dessbesell L. VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO. [Internet] [Masters thesis]. Universidade Federal de Santa Maria; Programa de Pós-Graduação em Engenharia Florestal; UFSM; BR; Recursos Florestais e Engenharia Florestal; 2014. [cited 2021 Apr 16]. Available from: http://repositorio.ufsm.br/handle/1/8753.

Council of Science Editors:

Dessbesell L. VIABILIDADE ECONÔMICA DO APROVEITAMENTO ENERGÉTICO DA SERRAGEM NA BACIA HIDROGRÁFICA DO RIO PARDO. [Masters Thesis]. Universidade Federal de Santa Maria; Programa de Pós-Graduação em Engenharia Florestal; UFSM; BR; Recursos Florestais e Engenharia Florestal; 2014. Available from: http://repositorio.ufsm.br/handle/1/8753

13. Joao Carlos de Mello Barbosa. Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais.

Degree: 2009, Universidade Federal Rural do Rio de Janeiro

URL: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1323

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The general goal of this work is to evaluate the possibility of utilizing tannin from black wattle and lignocelullosic derivatives in the preparation of foundry… (more)

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The general goal of this work is to evaluate the possibility of utilizing tannin from black wattle and lignocelullosic derivatives in the preparation of foundry sand, as well as to evaluate the utilization of tannins as glueing for the confection of briquettes of vegetal residues. The work has been divided into two chapters, which comprise distinct experiments. In the first chapter tannin and cellulignin were used as constituents of foundry sand for the fabrication of pieces of pure aluminum alloy or aluminum-silicon eutectic alloy (11,0 a 13,0 % of Si). In the second chapter the use of tannin was evaluated in the production of briquettes of vegetal residues for application as a source of energy. The traces of foundry sand normally use clay as glueing and mogul (corn starch) with the goal of enhancing the resistance to compression and workability of the mold thus produced. It is common practice the use of mineral coal as a reducing agent in the mixture, and so the effects of its substitution by cellulignin, because of its high carbon content, were evaluated. Tannin, for its adhesive properties, acted as glueing together with clay, and replaced molasses, which is a component of foundry sand, perfectly. The resistance analysis produced good results and the process will generate molds with good visual aspect and adequate mechanical properties. Sawdust obtained in a eucalyptusprocessing sawmill was used in the confection of the briquettes. Tannin demonstrated great affinity to water in the composition of the standard mixture for briquetting. In natura sawdust, without any beneficiation, was used for briquetting. The results revealed that tannin is effective in the production of briquettes, where acted as an element of adhesion between the sawdust particles.

O objetivo geral deste trabalho foi avaliar a possibilidade de utilização de tanino de acácia negra e de derivados lignocelulósicos na preparação de areias de fundição, bem, como avaliar a utilização dos taninos como aglomerante para confecção de briquetes de resíduos vegetais. O trabalho foi dividido em dois capítulos, constituindo experimentos distintos. No primeiro capítulo foram utilizados o tanino e a celulignina como constituintes de areia preparadas de fundição para a fabricação de peças em ligas de alumínio puro ou alumínio-silício eutética (11,0 a 13,0 % de Si). No segundo capítulo, avaliou-se a utilização do tanino na obtenção de briquetes de resíduos vegetais para aplicação como fonte de energia. Os traços de areia preparada de fundição normalmente usam a argila como aglomerante e o mogul (amido de milho) com a finalidade de melhorar a resistência à compressão da areia e a trabalhabilidade do molde produzido. É prática comum a utilização do carvão mineral como elemento redutor na mistura, e assim, foram avaliados os efeitos de sua substituição pela celulignina, em função do seu teor elevado de carbono. O tanino, por suas propriedades adesivas, atuou como aglomerante em parceria com a argila, e ainda substituiu perfeitamente o melaço, que é um componente…

Advisors/Committee Members: Roberto Carlos Costa Lelis.

Subjects/Keywords: acácia; ENGENHARIA DE MATERIAIS E METALURGICA; celulignina; serragem; eucalipto; briquetagem.; black wattle; cellulignin; sawdust; eucalyptus; briquetting

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Barbosa, J. C. d. M. (2009). Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais. (Thesis). Universidade Federal Rural do Rio de Janeiro. Retrieved from http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1323

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Barbosa, Joao Carlos de Mello. “Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais.” 2009. Thesis, Universidade Federal Rural do Rio de Janeiro. Accessed April 16, 2021. http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1323.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Barbosa, Joao Carlos de Mello. “Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais.” 2009. Web. 16 Apr 2021.

Vancouver:

Barbosa JCdM. Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais. [Internet] [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2009. [cited 2021 Apr 16]. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1323.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Barbosa JCdM. Utilização de tanino e derivados ligno-celulósicos na preparação de areias de fundição e briquetes de resíduos vegetais. [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2009. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1323

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

UNIVERSIDADE FEDERAL DE OURO PRETO

14. José Genário Keles. Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais.

Degree: 2011, UNIVERSIDADE FEDERAL DE OURO PRETO

URL: http://www.tede.ufop.br/tde_busca/arquivo.php?codArquivo=734

►

As estruturas de aço necessitam de proteção passiva para adquirir a resistência ao fogo exigida pelas normas técnicas de segurança contra incêndio. A resistência ao… (more)

▼

As estruturas de aço necessitam de proteção passiva para adquirir a resistência ao fogo exigida pelas normas técnicas de segurança contra incêndio. A resistência ao fogo é medida pelo tempo em que a peça estrutural preserva suas propriedades de isolamento, estanqueidade e resistência mecânica, quando submetidas ao ensaio-padrão da norma brasileira. Entre os materiais de proteção passiva, as argamassas cimentícias se destacam pelo custo, em geral mais baixo que o das placas rígidas e das tintas intumescentes, e pela facilidade de aplicação, em geral borrifadas com um aspersor ou aplicadas como emboço ou reboco, como proteção passiva de barras de aço. O presente trabalho investigou a resistência ao fogo e a massa específica de uma argamassa cimentícia aditivada com pó de serra de granulometria controlada. Este pó de serra foi gerado a partir do processamento da madeira e é considerado rejeito da indústria madeireira. O material de estudo foi o pó originado da serra da madeira do gênero Pinus. Para utilização como adição em argamassas, o pó de serra passou por processos que objetivaram a inibição da influencia da matéria orgânica nas reações de endurecimento do cimento portland. Os processos utilizados foram o tratamento em solução de cal e de soda caustica. O pó de serra passou por ensaios de caracterização física para determinação da granulometria, massa específica, massa unitária e teor de umidade. O pó de serra após tratado e caracterizado foi utilizado na confecção de argamassas em substituição de 15, 30 e 45% do agregado miúdo. As argamassas confeccionadas foram utilizadas para moldagem de placas e corpos de prova cilíndricos e prismáticos. As argamassas foram caracterizadas mecanicamente e tiveram sua condutividade térmica e massa específica avaliadas. A partir dos resultados obtidos concluiu-se que a aditivação das argamassas com fibras vegetais originadas do pó de serra tratado xiii contribuiu para o aumento de resistência térmica e a diminuição da massa específica.

Steel structures need to acquire the passive protection fire resistance required by the technical standards on fire safety. Fire resistance is measured by the time the structural part preserves its insulating properties and mechanical strength when subjected to the test standard of the Brazilian standard. Among the passive protection materials, cementitious mortar stand at cost, generally lower than that of rigid plates and the intumescent paint, and the ease of application, usually sprayed with a spray or applied as plaster and smoothed finish. This study investigated the fire and the density of a cement mortar added with sawdust particle size control. This sawdust is generated from wood processing and is considered waste wood industry. The material was powder originated from the mountain of wood Pinus. For use in addition to mortars, the sawdust has gone through processes that focused on the inhibition of the influence of organic matter in the reactions of hardening of portland cement. The processes used were treated in a solution of lime and…

Advisors/Committee Members: Augusto Cesar da Silva Bezerra, Paulo Santos Assis, Antônio Maria Claret de Gouvêa, Sávio Augusto Lopes da Silva, Weber Guadagnin Moravia.

Subjects/Keywords: pó de serra; fibras vegetais; compósitos cimentícios; proteção passiva; sawdust; vegetable fibers; cementitious composites; passive protection; MATERIAIS NAO METALICOS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Keles, J. G. (2011). Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais. (Thesis). UNIVERSIDADE FEDERAL DE OURO PRETO. Retrieved from http://www.tede.ufop.br/tde_busca/arquivo.php?codArquivo=734

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Keles, José Genário. “Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais.” 2011. Thesis, UNIVERSIDADE FEDERAL DE OURO PRETO. Accessed April 16, 2021. http://www.tede.ufop.br/tde_busca/arquivo.php?codArquivo=734.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Keles, José Genário. “Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais.” 2011. Web. 16 Apr 2021.

Vancouver:

Keles JG. Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais. [Internet] [Thesis]. UNIVERSIDADE FEDERAL DE OURO PRETO; 2011. [cited 2021 Apr 16]. Available from: http://www.tede.ufop.br/tde_busca/arquivo.php?codArquivo=734.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Keles JG. Investigação da resistência ao fogo de uma argamassa aditivada com fibras vegetais. [Thesis]. UNIVERSIDADE FEDERAL DE OURO PRETO; 2011. Available from: http://www.tede.ufop.br/tde_busca/arquivo.php?codArquivo=734

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ghana

15. Kortei, K.J.N. Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials .

Degree: 2015, University of Ghana

URL: http://ugspace.ug.edu.gh/handle/123456789/8949

► The conventional method of decontamination of the spawn substrate sorghum and compost of ‗wawa‘ (Triplochiton scleroxylon) sawdust by the use of steam sterilization has attendant… (more)

▼ The conventional method of decontamination of the spawn substrate sorghum and compost of ‗wawa‘ (Triplochiton scleroxylon) sawdust by the use of steam sterilization has attendant problems. In this thesis the possibility of using gamma radiation to decontaminate sorghum based spawn substrate and the compost before cultivation of the fruit bodies was determined as well as its effectiveness on selected nutritional, physical and organoleptic properties of the fruit bodies. A survey was carried out using the rapid appraisal method to determine the existing methods of sterilization, use of gamma radiation in food preservation, preference of mushrooms in Ghana by consumers and nutritional and medicinal attributes of the mushroom. The resident mycoflora in the sorghum grains and ‗wawa‘ sawdust as well as in the fresh and dry fruitbodies of P. ostreatus was determined by using Standard Decimal Series Dilution technique on two media (Cooke‘s and DRBC). At the end of the prescribed incubation period of the compost bags, the following parameters were determined: surface mycelia density and contamination, total number of fruit bodies, number of primordial formed, total yield, Biological Efficiency, mycelia growth rate, average stipe length, average cap diameter and mushroom size at each dose applied. The bacterial loads were determined by the conventional microbiological techniques and identification was by the use of the API 20E system. The D10 dose requirement for reduction of fungi and Baccillus cereus were also carried out on the preserved fresh and dry mushroom using Fricke Dosimetry. To ascertain the influence of the different combinations of radiation and steam treatments and packaging material on the nutritional quality of the sporophore formed, proximate analysis and mineral elements composition (Na, Ca, K, P, N, Fe, Zn, Cu, Mg, Pb) were determined by using the International Standard Methods in the Mushroom Industry. Dry curves showing the influence of radiation on drying rate of oyster mushrooms were determined by five non- linear regression models (Lewis, Page, Henderson and Pabis, Diffussion and Wang and Singh by the estimation of R2, X2 and RMSE). The total phenolic contents, flavonoids and free radical scavenging activity DPPH (2, 2‘- diphenyl-1- picrylhydrazyl) as sources of natural antioxidant of stored mushroom in polypropylene and polythene packs were determined using aqueous, ethanol and methanol extracts by Folin- Ciocalteau method. Finally, the influence of gamma irradiation on the colour characteristics were determined by the Hunter L* a* b* and Browning Index (BI) method while textural characteristics were determined mechanically by measuring Texture Hardness (kgf), Fracturability (N), Cohesiveness, Chewiness (N), Springiness (mm), Gumminess, Adhesiveness (kgf.s) and Resilience of fresh, dry and rehydrated mushrooms. The mechanical estimation to textural characters obtained were compared with mean scores on 9-point Hedonic scale of sensory acceptability attributes (appearance, colour, aroma, taste,… Advisors/Committee Members: Odamtten, G.T (advisor), Obodai, M (advisor), Appiah, V (advisor).

Subjects/Keywords: Sawdust Compost; Sterilization; Gamma Irradiation; Comparative Effect of Steam; Nutrient and Shelf-Life; Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer; Materials

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kortei, K. J. N. (2015). Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials . (Doctoral Dissertation). University of Ghana. Retrieved from http://ugspace.ug.edu.gh/handle/123456789/8949

Chicago Manual of Style (16^th Edition):

Kortei, K J N. “Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials .” 2015. Doctoral Dissertation, University of Ghana. Accessed April 16, 2021. http://ugspace.ug.edu.gh/handle/123456789/8949.

MLA Handbook (7^th Edition):

Kortei, K J N. “Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials .” 2015. Web. 16 Apr 2021.

Vancouver:

Kortei KJN. Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials . [Internet] [Doctoral dissertation]. University of Ghana; 2015. [cited 2021 Apr 16]. Available from: http://ugspace.ug.edu.gh/handle/123456789/8949.

Council of Science Editors:

Kortei KJN. Comparative Effect of Steam and Gamma Irradiation Sterilization of Sawdust Compost on the Yield, Nutrient and Shelf-Life of Pleurotus Ostreatus (Jacq.Ex.Fr) Kummer Stored In Two Different Packaging Materials . [Doctoral Dissertation]. University of Ghana; 2015. Available from: http://ugspace.ug.edu.gh/handle/123456789/8949

16. Bäck, Frida. Influence of bio-coal ash respectively coal structure on coke production and coke quality.

Degree: Sustainable Process Engineering, 2019, Luleå University of Technology

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76180

► In recent years, the consequences of global warming have increased the discussion about the climate impact caused by humans and the fossil emissions. Sweden… (more)

▼ In recent years, the consequences of global warming have increased the discussion about the climate impact caused by humans and the fossil emissions. Sweden has decided to reduce the negative climate impact with a zero vision for the fossil carbon dioxide emissions in year 2045. In order to achieve this, great efforts and changes are needed both in the inhabitants' way of living but primarily in the base industry. The major cause is the use of fossil coal, which generates fossil carbon dioxide in the steel industry in particular. The fossil coal is added to the blast furnace in the steel process in forms of coke and coal, which reduces the iron and emits heat. The quality of the coke is important as it functions reducing agent, provides a mechanical support to the bed and enables the gas flow up through the blast furnace and enables dissolution of carbon in hot metal. Also, coke supplies energy from exothermic reactions between carbon and carbon dioxide that takes part in the blast furnace and the energy are further used for the heating and melting of the cold iron pellets. Due to these factors, the blast furnace process is dependent on coke for its function, which means that the entire process must be replaced if the steel production should work without fossil coal. However, there are many studies that have been done on how to replace some of the fossil coal with bio-coal, which is produced from biomass. If some of the fossil coal could be replaced by some bio-coal, this would mean that fossil carbon dioxide emissions would decrease and lead to a reduced climate impact. The process would still generate carbon dioxide, but on the other hand, a cycle would be formed because when biomass is grown, carbon dioxide is taken up, e.g. by the trees grown for this purpose. However, bio-coal does not have the same properties as fossil coal, which in turn affects the quality of the coke. Bio-coke is more reactive and more porous than fossil coke. In order to be able to replace fossil coke with bio-coke, it is likely necessary to pre-treat the biocoal before it replaces part of the fossil coal in the coke production. Bio-coal contains ash that acts as an internal catalyst. One theory is that if it is possible to produce a bio-coal with ash-free carbon structure, it can be used in the production of coke without having such a great effect on the coke quality. In this project, the ash's impact on the properties of bio-coal in coke was studied. Previous studies have shown that leaching is an effective method for removing ash from bio-coal. It can be leached in three different ways, either with water, weak acid or acid. However, it has been found that acid leaching has a certain impact on the carbon structure itself. For this reason, two types of bio-coal, torrefied Grot (forest residue) and torrefied sawdust were selected, which were leached both with water but also with weak acid in order to achieve an ash-reduced carbon structure. The acid selected was acetic acid, as it has been tested for similar purposes in previous studies.…

Subjects/Keywords: Bio-coke; bio-coal; leaching; coke quality; carbon structures; torrefied sawdust; Metallurgy and Metallic Materials; Metallurgi och metalliska material

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bäck, F. (2019). Influence of bio-coal ash respectively coal structure on coke production and coke quality. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76180

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bäck, Frida. “Influence of bio-coal ash respectively coal structure on coke production and coke quality.” 2019. Thesis, Luleå University of Technology. Accessed April 16, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76180.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bäck, Frida. “Influence of bio-coal ash respectively coal structure on coke production and coke quality.” 2019. Web. 16 Apr 2021.

Vancouver:

Bäck F. Influence of bio-coal ash respectively coal structure on coke production and coke quality. [Internet] [Thesis]. Luleå University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76180.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bäck F. Influence of bio-coal ash respectively coal structure on coke production and coke quality. [Thesis]. Luleå University of Technology; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76180

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

17. Smékalová, Veronika. Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/62378

► Lightweight refractory products have their place between refractory materials. Still the most common way of lightweighting is by using burnable components. This bachelor work includes… (more)

Subjects/Keywords: Lehčený šamot; lehčivo; piliny; popel; žárovzdornost; objemová hmotnost; součinitel tepelné vodivosti; Lightweight fireclay; lightener; sawdust; ash; heat resistance; density; thermal conductivity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smékalová, V. (2020). Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/62378

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Smékalová, Veronika. “Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte.” 2020. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/62378.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Smékalová, Veronika. “Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte.” 2020. Web. 16 Apr 2021.

Vancouver:

Smékalová V. Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/62378.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Smékalová V. Vliv pilin na žárovzdornost lehčeného šamotu: The Effect of Sawdust on the Refractoriness of Insulation Chamotte. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/62378

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

18. Smiřický, Jan. Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/65313

► This bachelor thesis is about the synthesis of polyurethane glue, which is capable of gluing together sawdust, and about the testing of the mechanical characteristics… (more)

Subjects/Keywords: Kyselina mléčná; termosety kyseliny mléčné; dřevotříska; bio-kompozity; polyurethany; Lactic acid; lactic acid resins; sawdust; bio-composites; polyurethanes

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smiřický, J. (2019). Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/65313

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Smiřický, Jan. “Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/65313.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Smiřický, Jan. “Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins.” 2019. Web. 16 Apr 2021.

Vancouver:

Smiřický J. Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/65313.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Smiřický J. Bio-kompozity na bázi termosetů kyseliny mléčné: Bio-based composites made from lactic acid resins. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/65313

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Louisiana State University

19. Abu-Laban, Mohammad. Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating.

Degree: MSBAE, Engineering, 2016, Louisiana State University

URL: etd-04112016-100249 ; https://digitalcommons.lsu.edu/gradschool_theses/1129

► This study investigated the thermal performances of platinum particles when coupled on a steel support, under the application of a radio frequency (RF) field. Platinum… (more)

▼ This study investigated the thermal performances of platinum particles when coupled on a steel support, under the application of a radio frequency (RF) field. Platinum nanoparticles were reduced on the surfaces of type-316 stainless steel balls, based on published methods of Pt reduction from chloroplatinic acid. Alternatively, 1wt. % Pt/Al2O3 commercial catalyst pellets were mixed with stainless steel balls and investigated for hydro-deoxygenation of pyrolysis oil from pine sawdust biomass. The catalysts were placed inside an electric insulator tube suspended within a looping copper coil connected to the induction heater, and heated at different power levels. An infrared camera was utilized to record the surface temperature profile during heating of Pt-coated balls and non-coated balls. Pt particles deposited onto silica beads showed no surface heating when placed inside an RF field. The Pt-coated steel systems, however, showed rapid heating of the surfaces following a first order response. The catalysts were characterized via SEM/EDX, XPS and XRD. Preliminary upgrading tests using these Pt-steel balls did not indicate any effect. The lack of catalytic activity was attributed to the limited surface area per unit volume of the Pt coating due to the large sizes and non-porous structure of the steel balls. For the catalytic upgrading experiment with the use of the Pt/Al2O3 commercial catalyst pellets mixed with steel balls, heating of the catalyst bed with the induction heater was compared with a conventional method of heating using electric tape around the catalyst bed reactor. Partial deoxygenation was successfully achieved in the catalytic upgrading of pyrolysis oil using Pt/Al2O3 pellets mixed with steel balls at 234°C, with the use of the induction heater. The molar O/C ratio of the oil decreased from 1.36 to 0.51. No deoxygenation was observed using the conventional heating method with the electric tape under identical conditions as both carbon and oxygen appeared to be removed at approximately equal rates, with the carbon being deposited in the form of coke onto the catalyst instead of being recovered in the liquid.

Subjects/Keywords: HDO; pyrolysis; sawdust; Pt; alumina; steel; hydrodeoxygenation; deoxygenation; induction heating; radiofrequency; RF; upgrading; upconversion; biomass; biofuels

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Abu-Laban, M. (2016). Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating. (Masters Thesis). Louisiana State University. Retrieved from etd-04112016-100249 ; https://digitalcommons.lsu.edu/gradschool_theses/1129

Chicago Manual of Style (16^th Edition):

Abu-Laban, Mohammad. “Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating.” 2016. Masters Thesis, Louisiana State University. Accessed April 16, 2021. etd-04112016-100249 ; https://digitalcommons.lsu.edu/gradschool_theses/1129.

MLA Handbook (7^th Edition):

Abu-Laban, Mohammad. “Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating.” 2016. Web. 16 Apr 2021.

Vancouver:

Abu-Laban M. Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating. [Internet] [Masters thesis]. Louisiana State University; 2016. [cited 2021 Apr 16]. Available from: etd-04112016-100249 ; https://digitalcommons.lsu.edu/gradschool_theses/1129.

Council of Science Editors:

Abu-Laban M. Biomass Catalytic Upconversion with a Metallic Catalyst Bed under Radio Frequency Induction Heating. [Masters Thesis]. Louisiana State University; 2016. Available from: etd-04112016-100249 ; https://digitalcommons.lsu.edu/gradschool_theses/1129

Massey University

20. James, Trevor Kenneth. Characterisation of herbicide behaviour in some innovative growing media.

Degree: PhD, Soil Science, 2008, Massey University

URL: http://hdl.handle.net/10179/774

► An abundance of waste products from the forestry industry (sawdust and paper pulp) lead to the concept of using them as growing media for high… (more)

▼ An abundance of waste products from the forestry industry (sawdust and paper pulp) lead to the concept of using them as growing media for high value crops on a field scale. However, management of subsequent weed growth posed a problem as the impact of these novel media on the performance and fate of herbicides was unknown. Three aspects of sawdust and paper pulp waste were examined and compared to two cropping soils, viz. their effect on herbicide behaviour with regard to crop selectivity, weed control efficacy and the environmental fate of selected chemicals. Cropping species such as lettuce and onions were more susceptible to alachlor and chlorpropham in sawdust than in paper pulp. The two cropping soils evaluated (Horotiu sandy loam and Mangateretere silt loam) tended to be intermediate although the former was often close to the sawdust and the latter to the paper pulp in terms of herbicide phytotoxicity to the crop plants. For the less water soluble herbicide pendimethalin, the differences in crop selectivity in the different media were not significant. The effect of the media on the efficacy of weed control was evaluated through plant species with a much lower tolerance to the herbicides evaluated in contrast to the above species. For these plants the efficacy of the herbicides was generally lower in both the sawdust and paper pulp than in the two soils. The effect was more pronounced with the more soluble alachlor, where efficacy was reduced by factors of 5 – 10, compared to pendimethalin where efficacy reduction was by factors of 0 – 3. The two high organic media had contrasting effects on the various environmental behaviour indices evaluated. Herbicide adsorption as quantified by distribution coefficient (Kd) was higher in the two novel media compared to both the Horotiu and Mangateretere soils. However, when the Kd was normalised to organic carbon (Koc), there was less variation amongst the media indicating that organic matter is an important factor in controlling sorption in these media. However, despite the high level of adsorption in the sawdust, herbicides were most prone to leaching in this medium. Conversely the paper pulp tended to be more retentive while the two soils were intermediate. The degradation as quantified by half-lives (t½) of the herbicides was generally slower in the two novel media, probably reflecting the higher sorption in these two media but also due to the lower level of microbial activity in the sawdust and paper pulp. The study shows that herbicide behaviour in these carbon based media differs significantly from that expected from soil organic matter, mainly due to the non-humified nature of the organic matter in the media and its poor biological activity.

Subjects/Keywords: Herbicide phytotoxicity; Sawdust; Paper pulp; Pendimethalin; Alachlor; Chlorpropham

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

James, T. K. (2008). Characterisation of herbicide behaviour in some innovative growing media. (Doctoral Dissertation). Massey University. Retrieved from http://hdl.handle.net/10179/774

Chicago Manual of Style (16^th Edition):

James, Trevor Kenneth. “Characterisation of herbicide behaviour in some innovative growing media.” 2008. Doctoral Dissertation, Massey University. Accessed April 16, 2021. http://hdl.handle.net/10179/774.

MLA Handbook (7^th Edition):

James, Trevor Kenneth. “Characterisation of herbicide behaviour in some innovative growing media.” 2008. Web. 16 Apr 2021.

Vancouver:

James TK. Characterisation of herbicide behaviour in some innovative growing media. [Internet] [Doctoral dissertation]. Massey University; 2008. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/10179/774.

Council of Science Editors:

James TK. Characterisation of herbicide behaviour in some innovative growing media. [Doctoral Dissertation]. Massey University; 2008. Available from: http://hdl.handle.net/10179/774

21. Ferreira, Chrystiano Araujo. Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico.

Degree: 2019, Universidade Federal da Paraíba; Programa de Pós-Graduação em Ciência e Engenharia de Materiais; UFPB; Brasil; Engenharia de Materiais

URL: https://repositorio.ufpb.br/jspui/handle/123456789/15383

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Made available… (more)

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Made available in DSpace on 2019-08-26T19:50:19Z (GMT). No. of bitstreams: 2 license_rdf: 805 bytes, checksum: c4c98de35c20c53220c07884f4def27c (MD5) Arquivototal.pdf: 11426760 bytes, checksum: bf8221df931f48091087f5898d6d5252 (MD5) Previous issue date: 2019-02-27

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES

Vários esforços tem sido realizados nos últimos anos no desenvolvimento de membranas cerâmicas a partir de matérias-primas de baixo custo. O reuso do resíduo do caulim, mostra-se como uma alternativa de menor impacto ambiental e de interesse econômico. O tratamento deste resíduo por hidrociclonagem, surge como uma alternativa eficiente para sua adequação ao ciclo produtivo cerâmico, podendo ter aplicabilidade na produção de membranas cerâmicas. O desenvolvimento de poros interconectados em membranas cerâmicas é dado pela introdução de agentes formadores de poros, normalmente orgânicos, logo, estudos do uso do resíduo da serragem da madeira como agentes formadores de poros de modo que confira porosidade adequada, aliado a um alto fluxo permeado e baixa depreciação da resistência mecânica são também essenciais. O trabalho tem, portanto, o objetivo de estudar e desenvolver membranas cerâmicas porosas a partir do uso das frações fina (FF) e grossa (FG) resultantes da hidrociclonagem do resíduo do caulim fino (RCF), utilizando o resíduo da serragem da madeira como agente formador de poros. O trabalho envolveu inicialmente a hidrociclonagem do RCF e as caracterizações mineralógica, química, térmica e granulométrica do RCF, FF, FG e, da argila. Em seguida, foram realizados estudos entre dois tipos de resíduos da serragem da madeira de maneira comparativa quanto ao teor de umidade, granulometria por peneiramento, perda ao fogo e, o percentual adequado, definindo assim, o tipo, retido em peneira e percentual mais adequado para a obtenção das membranas cerâmicas. Foram analisadas tecnologicamente cinco formulações variando a proporção entre FF e FG na obtenção de membranas cerâmicas na forma de disco e em três temperaturas de queima: 1150°C, 1200°C e 1250°C. Ao final, as membranas obtidas foram então caracterizadas de maneira mineralógica e morfológica e, avaliadas quanto as propriedades de fluxo permeado e resistência a compressão. Os resultados indicam que a membrana de formulação D (3FG:1FF) foi a que apresentou os melhores resultados, com a maior resistência a compressão, 28,65 MPa a 1200°C, no entanto, com poros acima de 10 μm, limitando-a a aplicações como filtração.

Several efforts have been made in recent years in the development of ceramic membranes from low-cost raw materials. The reuse of kaolin waste is shown as an alternative to less environmental impact and economic interest. The treatment of this waste by hydrocyclone…

Advisors/Committee Members: Dutra, Ricardo Peixoto Suassuna.

Subjects/Keywords: CNPQ::ENGENHARIAS; Membranas; Resíduo do caulim; Hidrociclonagem; Resíduo da serragem da madeira; Membranes; Kaolin waste; Hydrocyclone; Wood sawdust waste

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ferreira, C. A. (2019). Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico. (Masters Thesis). Universidade Federal da Paraíba; Programa de Pós-Graduação em Ciência e Engenharia de Materiais; UFPB; Brasil; Engenharia de Materiais. Retrieved from https://repositorio.ufpb.br/jspui/handle/123456789/15383

Chicago Manual of Style (16^th Edition):

Ferreira, Chrystiano Araujo. “Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico.” 2019. Masters Thesis, Universidade Federal da Paraíba; Programa de Pós-Graduação em Ciência e Engenharia de Materiais; UFPB; Brasil; Engenharia de Materiais. Accessed April 16, 2021. https://repositorio.ufpb.br/jspui/handle/123456789/15383.

MLA Handbook (7^th Edition):

Ferreira, Chrystiano Araujo. “Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico.” 2019. Web. 16 Apr 2021.

Vancouver:

Ferreira CA. Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico. [Internet] [Masters thesis]. Universidade Federal da Paraíba; Programa de Pós-Graduação em Ciência e Engenharia de Materiais; UFPB; Brasil; Engenharia de Materiais; 2019. [cited 2021 Apr 16]. Available from: https://repositorio.ufpb.br/jspui/handle/123456789/15383.

Council of Science Editors:

Ferreira CA. Obtenção de membrana cerâmica porosa a partir da utilização do resíduo de caulim como matéria-prima alternativa e da serragem da madeira como agente porogênico. [Masters Thesis]. Universidade Federal da Paraíba; Programa de Pós-Graduação em Ciência e Engenharia de Materiais; UFPB; Brasil; Engenharia de Materiais; 2019. Available from: https://repositorio.ufpb.br/jspui/handle/123456789/15383

22. Walbert Chrisostomo. Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas.

Degree: 2016, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-26042017-081757/

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Para tornar a biomassa disponível para aplicações em biocombustíveis, produtos químicos e materiais, algumas propriedades indesejáveis, como alto teor de umidade e baixa densidade, devem… (more)

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Para tornar a biomassa disponível para aplicações em biocombustíveis, produtos químicos e materiais, algumas propriedades indesejáveis, como alto teor de umidade e baixa densidade, devem ser corrigidos. Uma solução para estes problemas seria a densificação da biomassa. O processo de densificação da biomassa e seus resíduos, como a briquetagem e a peletização, são muito conhecidos e utilizados, entretanto, não existe um consenso sobre os mecanismos de ligação que ocorre entre as partículas da biomassa densificada e a influência que as variáveis da matéria-prima e do processo de densificação exerce sobre eles. Compreender os mecanismos de ligação entre as partículas da biomassa densificada é fundamental para determinar os parâmetros da matéria-prima e do processo de densificação, assim como os ensaios que devem ser realizados para medir a qualidade do produto densificado. Este trabalho teve como objetivo principal analisar o efeito das variáveis do material e do processo de densificação da serragem de madeira nas propriedades do produto densificado e a sua influência sobre os mecanismos de ligação entre as partículas do material. O material utilizado neste trabalho foi a serragem de Eucalyptus sp. Foram analisados o efeito do teor de umidade do material e a temperatura do processo de densificação na densidade e resistência mecânica do produto densificado, como também a influência da composição química da serragem na transição vítrea do material. A serragem de eucalipto foi caracterizada por análise termogravimétrica (TGA), caracterização química e espectroscopia de infravermelho por transformada de Fourier (FTIR). A caracterização de serragem densificada foi realizada por densidade aparente, expansão volumétrica, ensaio mecânico de compressão, microscopia eletrônica de varredura (MEV), microscopia ótica (MO), espectrometria de massa de íons secundários por tempo de voo (ToF-SIMS) e análise dinâmico-mecânica (DMA). Os resultados mostraram que no processo de densificação sem aquecimento, o teor de umidade ideal da serragem de eucalipto foi o de aproximadamente 10%, favorecendo as forças intermoleculares entre as partículas do material. Na densificação da serragem de eucalipto em diferentes temperaturas, a lignina agiu como um aglutinante natural, formando pontes sólidas entre as partículas do material em temperaturas superiores à 140°C. A transição vítrea encontrada para a lignina da serragem de eucalipto foi da ordem de 135°C. Em conclusão, as variáveis do material e do processo de densificação influenciaram nos mecanismos de ligação, afetando as propriedades da serragem de madeira densificada. Os principais mecanismos de ligação encontrados na serragem de madeira densificada foram interações intermoleculares e pontes sólidas.

Making biomass available for investments in biofuels, chemicals and materials, some undesirable properties as high moisture content and low density must be corrected. One solution to these problems would be densification of biomass. The densification process of biomass and waste…

Advisors/Committee Members: Antonio José Felix de Carvalho, Fábio Minoru Yamaji, José Cláudio Caraschi, Francisco Antonio Rocco Lahr, Alessandra Luzia da Róz, Walter Ruggeri Waldman.

Subjects/Keywords: Eucalyptus sp; Biomassa lignocelulósica; Densificação; Mecanismos de ligação; Serragem de madeira; Eucalyptus sp; Binding mechanisms; Densification; Lignocellulosic biomass; Sawdust wood

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chrisostomo, W. (2016). Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/18/18158/tde-26042017-081757/

Chicago Manual of Style (16^th Edition):

Chrisostomo, Walbert. “Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas.” 2016. Doctoral Dissertation, University of São Paulo. Accessed April 16, 2021. http://www.teses.usp.br/teses/disponiveis/18/18158/tde-26042017-081757/.

MLA Handbook (7^th Edition):

Chrisostomo, Walbert. “Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas.” 2016. Web. 16 Apr 2021.

Vancouver:

Chrisostomo W. Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas. [Internet] [Doctoral dissertation]. University of São Paulo; 2016. [cited 2021 Apr 16]. Available from: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-26042017-081757/.

Council of Science Editors:

Chrisostomo W. Mecanismos de ligação da serragem de madeira densificada com diferentes teores de umidade em diferentes temperaturas. [Doctoral Dissertation]. University of São Paulo; 2016. Available from: http://www.teses.usp.br/teses/disponiveis/18/18158/tde-26042017-081757/

23. Vidal, Juliana Ladeira. Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas.

Degree: 2016, Universidade Federal de Juiz de Fora (UFJF); Programa de Pós-graduação em Química; UFJF; Brasil; ICE – Instituto de Ciências Exatas

URL: https://repositorio.ufjf.br/jspui/handle/ufjf/10134

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CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

O formaldeído é uma substância química com características nocivas ao ser humano, mas que possui… (more)

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CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

O formaldeído é uma substância química com características nocivas ao ser humano, mas que possui ampla aplicação em diversas áreas nos dias atuais. Uma dessas aplicações consiste na conservação dos corpos de cadáveres a serem utilizados em estudos nos laboratórios de anatomia. O alto custo com o descarte dessas soluções no Instituto de Ciências Biológicas da Universidade Federal de Juiz de Fora serve como estímulo do trabalho, que consiste no tratamento das soluções de formaldeído após um processo de adsorção utilizando-se celulose e seus derivados como adsorvente. Sintetizam-se derivados de celulose à partir de celulose microcristalina e serragem, mas inclina-se o estudo para a utilização de serragem, visando uma maior relação custo-benefício. Analisam-se alguns parâmetros a fim de se atingir a otimização do processo, obtida a uma temperatura de 70°C durante 28 horas, em pH=6, utilizando-se uma razão massa de substrato/volume de solução equivalente a 202,5 mg/mL. Após estudos realizados com isotermas de adsorção verifica-se a melhor descrição do processo através do modelo de Freundlich, que considera a adsorção realizada em multicamadas através sistemas heterogêneos. Conclui-se que a serragem é capaz de adsorver aproximadamente 65% de formaldeído dessas soluções e que a matéria orgânica contida em solução influencia de maneira positiva o processo de adsorção. Além disso, realiza-se uma escala colorimétrica que permita aos técnicos dos laboratórios anatômicos controlar a concentração de formaldeído nos tanques.

Formaldehyde is a chemical substance with harmful characteristics to humans, but it has wide application in many areas today. One of them is the preservation of dead bodies to be used in studies anatomy laboratories. The high cost of disposal of these solutions at the Institute of Biological Sciences at the Juiz de Fora Federal University serves as a stimulus work, consisting in the treatment of formaldehyde solutions after an adsorption process using cellulose and its derivatives as adsorbent. Cellulose derivatives are synthesized starting from microcrystalline cellulose and sawdust, but leans the study to the use of sawdust, aimed at greater cost-effectiveness. Some parameters were analyzed in order to achieve optimization of the process, obtained at a temperature of 70 ° C for 28 hours, at pH 6 using a ratio of the substrate mass/volume of solution equal to 202,5 mg/mL. After studies of adsorption isotherms, the best description of the process was achieved by Freundlich model, which considers the adsorption held in multilayer through heterogeneous systems. The study concludes that the sawdust is able to adsorb about 65% of formaldehyde solution and the organic matter contained in solution influences positively the process of adsorption. In addition, colorimetric scale is made, that allows the technicians of the anatomical laboratories control the concentration of formaldehyde in the tanks.

Advisors/Committee Members: Grazul, Richard Michael, Leitão, Viridiana Santana Ferreira, Hyaric, Mireille Le.

Subjects/Keywords: CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA; Celulose; Serragem; Formaldeído; Resíduos; Adsorção; Cellulose; Sawdust; Formaldehyde; Residues; Adsorption

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vidal, J. L. (2016). Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas. (Masters Thesis). Universidade Federal de Juiz de Fora (UFJF); Programa de Pós-graduação em Química; UFJF; Brasil; ICE – Instituto de Ciências Exatas. Retrieved from https://repositorio.ufjf.br/jspui/handle/ufjf/10134

Chicago Manual of Style (16^th Edition):

Vidal, Juliana Ladeira. “Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas.” 2016. Masters Thesis, Universidade Federal de Juiz de Fora (UFJF); Programa de Pós-graduação em Química; UFJF; Brasil; ICE – Instituto de Ciências Exatas. Accessed April 16, 2021. https://repositorio.ufjf.br/jspui/handle/ufjf/10134.

MLA Handbook (7^th Edition):

Vidal, Juliana Ladeira. “Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas.” 2016. Web. 16 Apr 2021.

Vancouver:

Vidal JL. Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas. [Internet] [Masters thesis]. Universidade Federal de Juiz de Fora (UFJF); Programa de Pós-graduação em Química; UFJF; Brasil; ICE – Instituto de Ciências Exatas; 2016. [cited 2021 Apr 16]. Available from: https://repositorio.ufjf.br/jspui/handle/ufjf/10134.

Council of Science Editors:

Vidal JL. Modificações químicas de substratos naturais e seu uso para a remoção de formaldeído em soluções aquosas. [Masters Thesis]. Universidade Federal de Juiz de Fora (UFJF); Programa de Pós-graduação em Química; UFJF; Brasil; ICE – Instituto de Ciências Exatas; 2016. Available from: https://repositorio.ufjf.br/jspui/handle/ufjf/10134

24. Pantano, Glaucia. Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos.

Degree: 2016, Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Química – PPGQ; UFSCar

URL: https://repositorio.ufscar.br/handle/ufscar/8082

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The economic development of a country depends on good quality of water available, so the conservation and… (more)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The economic development of a country depends on good quality of water available, so the conservation and restoration of water bodies are strategic conditions for this to happen. However, water resources have become scarce over the past decades, in quantitative and qualitative terms. A variety of human activities have caused serious problems to the aquatic environment, and eutrophication is one of the most responsible for the degradation of the quality of water bodies, mainly caused by the artificial enrichment of nutrients, especially phosphorus and nitrogen. There are currently two contrasting scenarios: the excessive presence of phosphorus in aquatic ecosystems and, the depletion of phosphate rock deposits, which endangers the water security and the global food security. In this context the development of technologies aimed at the recovery of the quality of aquatic ecosystems and phosphorus contained in these compartments is of fundamental importance, since the global stock of phosphate rocks is a finite resource and may be close to being exhausted. Various technologies for the remediation of eutrophic environments have been studied, however none of which aims to reuse of phosphorus in agriculture. Thus, the aim of this study was to evaluate the sawdust as biosorbent material to phosphorus aiming the recovery of the quality of water resources and its later use as fertilizer in agriculture. The experiments were conducted in two stages, first were assembled microcosm with water and sediment samples from eutrophic reservoir Ibirité/MG, the total incubation time was 159 days, in this time various parameters (physicochemical and chemical) were monitored in the water column, interstitial water and sediment. After the end of this first experiment arose any question about the phosphorus adsorption in sawdust, what motivated the development of a new experiment with samples of the Barra Bonita/SP. This experiment was performed with sterile and non-sterile samples as well as that had or not a previous addition of iron in the sawdust, the incubation time was 240 and 247 days, respectively for non-sterile and sterile experiment. The results of the first experiment (Ibirité) showed that there was a reduction of 90.5% of orthophosphate in the water column of the microcosms and sawdust adsorbed 16.2 μg g-1, this adsorption occurred mostly after 113 days of incubation. In the second experiment results showed that prior to addition of iron not conducive to increased adsorption in the non-sterile experiments, and the main adsorption mechanism may be not via the action of bacteria oxidizing Fe (II). The higher adsorption in the second experiment took place in sterile microcosm, where sawdust adsorbed 66.9 μg g-1 in the period of 247 days. Knowing that the success in the recovery of water bodies depends on the reduction of external phosphorus sources, the studied technology has a good potential application as a remediation…

Advisors/Committee Members: Fadini, Pedro Sérgio.

Subjects/Keywords: Remediação; Eutrofização; Serragem; Fósforo; Microcosmos; Remediation; Eutrophication; Sawdust; Phosphorus; Microcosms; CIENCIAS EXATAS E DA TERRA::QUIMICA::QUIMICA ANALITICA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pantano, G. (2016). Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos. (Doctoral Dissertation). Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Química – PPGQ; UFSCar. Retrieved from https://repositorio.ufscar.br/handle/ufscar/8082

Chicago Manual of Style (16^th Edition):

Pantano, Glaucia. “Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos.” 2016. Doctoral Dissertation, Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Química – PPGQ; UFSCar. Accessed April 16, 2021. https://repositorio.ufscar.br/handle/ufscar/8082.

MLA Handbook (7^th Edition):

Pantano, Glaucia. “Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos.” 2016. Web. 16 Apr 2021.

Vancouver:

Pantano G. Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos. [Internet] [Doctoral dissertation]. Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Química – PPGQ; UFSCar; 2016. [cited 2021 Apr 16]. Available from: https://repositorio.ufscar.br/handle/ufscar/8082.

Council of Science Editors:

Pantano G. Recuperação de reservatórios eutrofizados por atividades antrópicas : estudos em microcosmos. [Doctoral Dissertation]. Universidade Federal de São Carlos; Câmpus São Carlos; Programa de Pós-Graduação em Química – PPGQ; UFSCar; 2016. Available from: https://repositorio.ufscar.br/handle/ufscar/8082

25. Calciolari, Karina [UNESP]. Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto.

Degree: 2016, Universidade Estadual Paulista (UNESP)

URL: http://hdl.handle.net/11449/138024

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

As afecções do sistema respiratório são a segunda causa de queda de desempenho e afastamento dos equinos do esporte ou trabalho, as quais estão atrás somente das desordens musculoesqueléticas. A estabulação e alimentação a base de fenos predispõe os equinos a inalação de grande número de agentes irritantes as vias aéreas. No intuito de mensurar a influência dos tipos de cama utilizado em baias de equinos nas respostas alérgicas das vias aéreas estudou-se 3 grupos com 5 equinos cada sendo dois mantidos em cocheiras com diferentes tipos de forração à base de madeira (maravalha de pinus autoclavada-MA e serragem-SE) e por último um grupo controle à pasto por 45 dias com avaliações quinzenais (D0, D15, D30 e D45). Foi realizado nestes momentos o exame físico, coleta de amostras de sangue venoso e arterial para realização de hemograma e hemogasometria respectivamente, lavado broncoalveolar com análise citológica e mensuração de fosfatase alcalina, além de amostras das camas (limpa e suja) e feno pré-secado para análise micológica. No exame físico foi notado tosse e espirros em maior intensidade e número nos equinos do grupo SE. A análise hematológica permaneceu dentro dos padrões de normalidade. Já nos achados hemogasométricos os maiores valores de pH foram observados nos equinos à pasto (7,47 ± 0,02). Nos grupos embaiados foi observado valores de pressão parcial de dióxido, de D15 à D45, inferiores (valores entre 38,3 a 43,7 mmHg) ao grupo a pasto (valores entre 43,7 a 46,5 mmHg), sendo os valores de pressão parcial de oxigênio inversamente proporcionais (MA e SE: valores entre 103,6 a 127,78 mmHg e à pasto: 88,2 a 103,6 mmHg). Os principais achados no lavado broncoalveolar basearam-se na contagem de células nucleadas totais no que apresentou maiores valores em todos os momentos nos animais à pasto (251,0 a 336,8 x 103/ µL), seguido do grupo SE (197,0 a 248,6 x 103/ µL) e por último o MA (140,6 à 270,2 x 103/ µL). Dentre as células nucleadas os macrófagos representaram maior porcentagem seguidos dos linfócitos (51,2 a 80,8% e 6,6 a 33,2% respectivamente). Um padrão inesperado foi observado na população de neutrófilos, os quais com os passar dos momentos houve decréscimo, com excessão do grupo MA que apresentou um pico no D30 (35%), relacionado ao pico de fosfatase alcalina (27,6 ± 14,98 UI/L) neste mesmo…

Advisors/Committee Members: Universidade Estadual Paulista (UNESP), Lacerda Neto, José [UNESP].

Subjects/Keywords: Lavado broncoalveolar; Maravalha; Serragem; Processo alérgico; Fungos; Cavalos; Bronchoalveolar lavage; Wood shavings; Sawdust; Allergic process; Fungi; Horses

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Calciolari, K. [. (2016). Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto. (Masters Thesis). Universidade Estadual Paulista (UNESP). Retrieved from http://hdl.handle.net/11449/138024

Chicago Manual of Style (16^th Edition):

Calciolari, Karina [UNESP]. “Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto.” 2016. Masters Thesis, Universidade Estadual Paulista (UNESP). Accessed April 16, 2021. http://hdl.handle.net/11449/138024.

MLA Handbook (7^th Edition):

Calciolari, Karina [UNESP]. “Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto.” 2016. Web. 16 Apr 2021.

Vancouver:

Calciolari K[. Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto. [Internet] [Masters thesis]. Universidade Estadual Paulista (UNESP); 2016. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11449/138024.

Council of Science Editors:

Calciolari K[. Efeitos da estabulação sobre o trato respiratório de equinos em dois tipos diferentes de camas e a pasto. [Masters Thesis]. Universidade Estadual Paulista (UNESP); 2016. Available from: http://hdl.handle.net/11449/138024

Durban University of Technology

26. Tywabi, Zikhona. Processing of dissolving pulp in ionic liquids.

Degree: 2015, Durban University of Technology

URL: http://hdl.handle.net/10321/1746

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Submitted in fulfillment of the requirements for the degree of Doctor of Technology: Chemistry, Durban University of Technology, Durban, South Africa, 2015.

This thesis forms… (more)

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Submitted in fulfillment of the requirements for the degree of Doctor of Technology: Chemistry, Durban University of Technology, Durban, South Africa, 2015.

This thesis forms part of the Council for Scientific and Industrial Research, Forestry and Forest Products Research Centre (CSIR-FFP) biorefinery project which aims at developing and implementing novel industrial processes production of cellulose textile fibres. The focus of this study is to investigate the dissolution of South African Eucalyptus raw (unbleached) and final (bleached) dissolving pulp and saw dust wood in an ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [Emim][OAc] and the co-solvents [dimethylsulfoxide (DMSO)] or [dimethylformamide (DMF)] mixtures, to obtain regenerated cellulose by the further addition of water and acetone. The IL/co-solvent mixtures were able to dissolve the raw and final pulp samples at 120 ˚C for 6 hours whereas the sawdust wood dissolved in 10 hours. The IL/DMF mixture gave higher cellulose recoveries of 41.88 % for the raw pulp, 49.89 % for the final pulp sample and 32.50 % for sawdust wood while the IL/DMSO mixture gave a recovery of 15.25 % for the raw pulp sample, 36.25 % for the final pulp sample and 17.83 % for the sawdust wood sample. The regenerated cellulose materials were characterized by Fourier Transformer Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR), Scanning Electron Microscopy (SEM), Thermo gravimetric Analysis (TGA) and Powder X-Ray Diffraction (pXRD), and compared with a standard microcrystalline of cellulose. It was observed that the FTIR and NMR spectra of the regenerated cellulose and MCC were similar which then indicates that no chemical reaction occurred during the dissolution and regeneration process of cellulose. SEM and X-ray diffraction (XRD) patterns of the results showed that after dissolution the cellulose I (native form), the crystalline structure was completely converted into cellulose II (amorphous) structure, and this was due to the removal of lignin and decrease in cellulose crystallinity. TGA results showed that the regenerated cellulose samples have higher char yields compared to the MCC which is due to the IL remaining in the regenerated cellulose. It was also observed that the addition of the co-solvents decreased the viscosity of the IL mixture, facilitating dissolution of the cellulose that led to additional swelling and reduction of the recalcitrant nature of the cellulose crystalline structure and intermolecular interactions. This led to increased accessibility and dissolution of the cellulose. The findings in this study have the potential to bring ILs closer to applications for biomass technology in particular for an economically viable dissolution method for biomass because ILs have a benefit of being easily separated from the anti-solvent, which provides a simple solution for IL recycle ability and re-use. The novel aspect of this study is: . This is the first study in the South African context to examine the influence…

Advisors/Committee Members: Sithole, B., Deenadayalu, Nirmala.

Subjects/Keywords: Sawdust wood; Regenerated cellulose; Dissolving pulp; Crystallinity; Dissolution; Ionic Liquids; Co-solvents; Ionic solutions; Dissolution (Chemistry); Wood-pulp – Dissolution; Cellulose – Dissolution; Wood – Chemistry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tywabi, Z. (2015). Processing of dissolving pulp in ionic liquids. (Thesis). Durban University of Technology. Retrieved from http://hdl.handle.net/10321/1746

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tywabi, Zikhona. “Processing of dissolving pulp in ionic liquids.” 2015. Thesis, Durban University of Technology. Accessed April 16, 2021. http://hdl.handle.net/10321/1746.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tywabi, Zikhona. “Processing of dissolving pulp in ionic liquids.” 2015. Web. 16 Apr 2021.

Vancouver:

Tywabi Z. Processing of dissolving pulp in ionic liquids. [Internet] [Thesis]. Durban University of Technology; 2015. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/10321/1746.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tywabi Z. Processing of dissolving pulp in ionic liquids. [Thesis]. Durban University of Technology; 2015. Available from: http://hdl.handle.net/10321/1746

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Lincoln University

27. Seyedalikhani, Salome. Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils.

Degree: 2019, Lincoln University

URL: http://hdl.handle.net/10182/10961

► Biowastes are unwanted materials of biological origin. They include biosolids (from sewage works), Dairy Shed Effluent (DSE), sawdust and Treated Municipal Wastewater (TMW). When applied… (more)

▼ Biowastes are unwanted materials of biological origin. They include biosolids (from sewage works), Dairy Shed Effluent (DSE), sawdust and Treated Municipal Wastewater (TMW). When applied to soil, biowastes can provide plant nutrients, but also introduce heavy metals, pathogens, or xenobiotics. Biowastes could improve degraded or low-fertility soils and generate revenue through the production of non-food products such as essential oils (EOs). I grew NZ native plants, mānuka (Leptospermum scoparium J.R. Forst & G. Forst) and kānuka (Kunzea robusta de Lange & Toelken) as well as Lavender (Lavandula angustifolia Mill.), Rosemary (Rosmarinus officinalis L.) and Thyme (Thymus vulgaris L.) in series of greenhouse experiments in medium-to-low fertility soils. Soils used in the experiments were Bideford clay loam (BCL), Lismore stony silt loam (LSL), Pawson silt loam (PSL) and Craigieburn silt loam (CSL), ordered from highest to lowest fertility, that were amended with either biosolids (up to 13500 kg N ha-1 equiv.), biosolids + sawdust (1:0.5, 1250 kg N ha-1 equiv.) and DSE (200 kg N ha-1 equiv.). Two types of biosolids from Kaikoura (KB) and Christchurch City Council (CB) were used in the experiments. Moreover, biosolids were applied in different methods including incorporation to the soil, surface application and using patches of the biosolids in soil. I had a field experiment to evaluate the effect of TMW (30 kg N ha-1 equiv.) on the EO yield and compositions of L. scoparium and K. robusta. Field surveys were used to evaluate the EO concentration and composition in natural populations of L. scoparium and K. robusta. In the greenhouse experiments the maximum biomass increase was related to CB application (3000 kg N ha-1 equiv.) that enhanced the biomass of L. scoparium by up to 29-fold in the lowest fertile soil (CSL). Generally, the optimum biosolids application rate was 1500 kg N ha-1 equiv. in the greenhouse experiments that increased the biomass of L. scoparium, K. robusta, L. angustifolia and R. officinalis by up to 120%, 170%, 86% and 70 % in PSL and LSL (low fertile soils), while DSE only increased the biomass of L. scoparium and R. officinalis and not the other plant species. Adding sawdust to KB increased the biomass of L. scoparium and K. robusta although it offset the L. scoparium growth increase by the KB-only treatment. Applying TMW increased the canopy volume of L. scoparium and K. robusta in the field experiment. Biowastes increased foliar concentrations of some macronutrients (e.g. N, P and S). Generally, the concentration of TEs including Zn was increased by biosolids and no other biowastes application. Maximum CB application rate increased the Zn concentration of L. scoparium and L. angustifolia leaves by 4 and 3 times (from 24 to 102 and 38 to 115 mg kg-1 dry matter), respectively. Cadmium concentration increased by up to 11-fold and 31-fold (from 0.03 to 0.22 and 0.01 to 0.31 mg kg-1 dry matter) in the L. scoparium and K. robusta leaves when biosolids were applied in high rates. Concentration of the…

Subjects/Keywords: biosolids; dairy shed effluent; degraded soil; essential oil; kānuka; mānuka; treated municipal wastewater; sawdust; Leptospermum scoparium; Kunzea ericoides; 0502 Environmental Science and Management; 0503 Soil Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Seyedalikhani, S. (2019). Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils. (Thesis). Lincoln University. Retrieved from http://hdl.handle.net/10182/10961

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Seyedalikhani, Salome. “Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils.” 2019. Thesis, Lincoln University. Accessed April 16, 2021. http://hdl.handle.net/10182/10961.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Seyedalikhani, Salome. “Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils.” 2019. Web. 16 Apr 2021.

Vancouver:

Seyedalikhani S. Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils. [Internet] [Thesis]. Lincoln University; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/10182/10961.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Seyedalikhani S. Biowastes to Establish Plants for Essential Oil Production on Low Fertility Soils. [Thesis]. Lincoln University; 2019. Available from: http://hdl.handle.net/10182/10961

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Federal do Maranhão

28. THAÍS FRAZÃO PINTO. ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO.

Degree: 2010, Universidade Federal do Maranhão

URL: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=542

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This work treated of modified wood sawdust with succinic anhydride and your application as adsorbent for remazol brilliant violet 5R (VR5) textile dye. The new… (more)

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This work treated of modified wood sawdust with succinic anhydride and your application as adsorbent for remazol brilliant violet 5R (VR5) textile dye. The new material obtained was designated SMAS. The vibrations spectra indicated the presence of oxygenated groups, being the modification confirmed by Infrared, 13C NMR spectroscopy and titration of acid groups that indicated the introduction of carboxylic groups the material. It was found that the material can act as adsorbent to dye investigated and your active sites further enriched, due to considerably increased the adsorption capacity compared to natural material. Furthermore, the process of adsorption proved to be highly dependent of the pH and the largest amount adsorbed was obtained at pH 2.0. The adsorption of remazol brilliant violet 5R textile dye by wood sawdust modified with succinic anhydride followed the kinetic modeling of second order and was well described by the Freundlich model. In the conditions studied was reached a percentage of removal 51.66%.

Este trabalho tratou da modificação de serragem de madeira por anidrido succínico e sua aplicação como adsorvente para o corante têxtil violeta brilhante 5R remazol (VR5). O novo material obtido foi denominado SMAS. Os espectros vibracionais indicaram a presença de grupos oxigenados, sendo a modificação comprovada a partir de Infravermelho, RMN de 13C e da titulação dos grupos ácidos, que indicaram a inserção de grupos carboxílicos ao material. Verificou-se que o material pode atuar como adsorvente para o corante investigado e que houve um acréscimo no número de sítios ativos, pois aumentou consideravelmente a capacidade de adsorção frente ao corante, comparado ao material in natura. Além disso, o processo de adsorção se mostrou fortemente dependente do pH e a maior quantidade adsorvida foi obtida em pH 2,0. A adsorção do corante Violeta Remazol 5R por serragem de madeira quimicamente modificada com anidrido succínico seguiu a modelagem cinética de segunda ordem e foi bem descrita pelo modelo de Freundlich. Nas condições estudadas, alcançou-se uma porcentagem de remoção de 51,66 %.

Advisors/Committee Members: Auro Atsushi Tanaka, Sirlane Aparecida Abreu Santana.

Subjects/Keywords: Adsorção; Serragem de madeira; Corante têxtil; Violeta brilhante 5R remazol; Isotermas; QUIMICA ANALITICA; Adsorption; Wood sawdust; Textile dye; Remazol brillant violet 5R; Isotherms

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

PINTO, T. F. (2010). ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO. (Thesis). Universidade Federal do Maranhão. Retrieved from http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=542

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

PINTO, THAÍS FRAZÃO. “ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO.” 2010. Thesis, Universidade Federal do Maranhão. Accessed April 16, 2021. http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=542.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

PINTO, THAÍS FRAZÃO. “ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO.” 2010. Web. 16 Apr 2021.

Vancouver:

PINTO TF. ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO. [Internet] [Thesis]. Universidade Federal do Maranhão; 2010. [cited 2021 Apr 16]. Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=542.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

PINTO TF. ADSORÇÃO DE CORANTE TÊXTIL (VIOLETA BRILHANTE 5R REMAZOL) POR SERRAGEM DE MADEIRA MODIFICADA COM ANIDRIDO SUCCÍNICO. [Thesis]. Universidade Federal do Maranhão; 2010. Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=542

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

29. Clarke, Kyla. Bioremediation of ethanol in air using a gas-fluidized bioreactor.

Degree: 2008, University of Saskatchewan

URL: http://hdl.handle.net/10388/etd-09112008-154435

► A gas-fluidized bed bioreactor was developed in this research as a new method for treating polluted air. The fluidization characteristics of selected packing materials were… (more)

▼ A gas-fluidized bed bioreactor was developed in this research as a new method for treating polluted air. The fluidization characteristics of selected packing materials were investigated. Then, bioremediation was tested using two types of packing in a fluidized bioreactor, as well as in a comparable packed bed. Microorganisms on the particles biodegrade contaminants in the polluted air, which flows up through the bed. At high flowrates, the polluted air fluidizes the particles, while at low velocities the operation is in packed bed mode.Initially, sawdust was selected for use as a packing material. Due to the poor fluidization properties of sawdust, glass spheres were added. A mixture of sawdust and glass spheres remained well mixed during fluidization. In the mixture, interparticle forces increased with increasing moisture in the sawdust, eventually causing defluidization of the bed. In the absence of bioremediation, mass transfer was studied between ethanol-contaminated air and sawdust/glass sphere packing, and found to be higher in the fluidized versus packed mode. In bioremediation experiments, ethanol removal efficiencies were as high as 95% in both operating modes. The maximum elimination capacities (EC) of ethanol were 75 and 225 g m^-3 sawdust h^-1 in the fluidized and packed beds respectively.The packing of the fluidized bed bioreactor was optimized in order to boost bioremediation rates. Experiments showed that peat granules fluidized well in a bubbling regime, likely due to their relatively high density and sphericity. In peat bioremediation trials, the fluidized mode outperformed the packed bed; the maximum ECs were 1520 and 530 g m^-3 peat h^-1, respectively. Removal efficiency in the fluidized mode decreased with velocity, because the size and amount of large bubbles increased.A steady-state model of the fluidized bioreactor was developed. By taking account of bubble properties during fluidization, the model helps to explain how bubble size, microbial properties and bioreactor residence time affect removal efficiency and elimination capacity of the bioreactor.A peat gas-fluidized bioreactor shows promise as an efficient, low-cost technology for air treatment. Particle mixing in the fluidized bed may prevent operating problems associated with the packed bed bioreactor. Fluidized bioreactors are ideal for the treatment of high volume, low concentration air emissions. Advisors/Committee Members: Pugsley, Todd, Hill, Gordon A., Nemati, Mehdi, Maule, Charles P., Evitts, Richard W., Bassi, Amarjeet, Reeves, Malcolm J., Wang, Hui.

Subjects/Keywords: sawdust; bioremediation; fluidization; volatile organic compounds; biofilter; peat granules; biodegradation

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APA (6^th Edition):

Clarke, K. (2008). Bioremediation of ethanol in air using a gas-fluidized bioreactor. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/etd-09112008-154435

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Clarke, Kyla. “Bioremediation of ethanol in air using a gas-fluidized bioreactor.” 2008. Thesis, University of Saskatchewan. Accessed April 16, 2021. http://hdl.handle.net/10388/etd-09112008-154435.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Clarke, Kyla. “Bioremediation of ethanol in air using a gas-fluidized bioreactor.” 2008. Web. 16 Apr 2021.

Vancouver:

Clarke K. Bioremediation of ethanol in air using a gas-fluidized bioreactor. [Internet] [Thesis]. University of Saskatchewan; 2008. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/10388/etd-09112008-154435.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Clarke K. Bioremediation of ethanol in air using a gas-fluidized bioreactor. [Thesis]. University of Saskatchewan; 2008. Available from: http://hdl.handle.net/10388/etd-09112008-154435

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Lithuanian University of Agriculture

30. Bieliauskas, Nerijus. Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai.

Degree: Master, Civil Enginering, 2007, Lithuanian University of Agriculture

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113557-31035 ;

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Baigiamajame darbe analizuojamas sapropelio kaip rišiklio panaudojimas termoizoliacinių plokščių gamyboje. Kompozicines medžiagas užpildant spygliuočių medžių pjuvenomis. Šiems tyrimams buvo pasirinktas užpelkėjusio Dobilios ežero esančio Kauno… (more)

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Baigiamajame darbe analizuojamas sapropelio kaip rišiklio panaudojimas termoizoliacinių plokščių gamyboje. Kompozicines medžiagas užpildant spygliuočių medžių pjuvenomis. Šiems tyrimams buvo pasirinktas užpelkėjusio Dobilios ežero esančio Kauno rajone sapropelis. Buvo Pagaminta speciali forma bandiniams formuoti. Formuojami bandiniai turėjo skirtinga sapropelio kiekį 200g formavimo masėje. Pasirinktas sapropelio kiekis bandinyje kito nuo 20 iki 35%. Sapropelio ir pjuvenų mišinys formoje buvo slegiamas 0,5; 1,5; 2,5; 3,5; 4,5 MPa slėgiu. Buvo ištirtas šių bandinių atsparumas gniuždymui, atsparumas lenkimui bei nustatytas bandinių tankis ir šiluminis laidumas. Taip pat buvo nustatyta šiluminio laidžio koeficiento priklausomybė nuo sapropelio kiekio bandinyje.

This Master Thesis analyses the appliance of sapropel as a binder in a heat insulation plate production. As a rest composing material sawdust of conifer was used. For the research was chosen a silt of a waterlogged lake Dobilė, located in Kaunas region. Samples were formed with a specially for the research made form. Every sample had a different quantity of sapropel in a forming mass of 200g. A chosen quantity of sapropel in a sample variated from 20 to 35% percents. The mix of sapropel and sawdust in a form was pressed by 0.5, 1.5, 2.5, 3.5, 4.5 MPa pressure. During the research was analyzed sample resistance to compression and flexure, estimated sample density and thermal conductivity. Thermal conductivity dependence on the quantity of sapropel in a sample was estimated as well.

Advisors/Committee Members: Juodis, Jonas (Master’s thesis supervisor), Mikuckis, Feliksas (Master’s thesis reviewer), Dapkienė, Midona (Master’s thesis reviewer), Svickis, Kazys (Master’s degree committee chair), Dumbrauskas, Antanas (Master’s degree committee member), Kinčius, Liudas (Master’s degree committee member), Šikšnys, Arvydas (Master’s degree committee member), Ramonas, Česlovas - Linksmutis (Master’s degree committee member).

Subjects/Keywords: Sapropelis; Plokštelės; Pjuvenos; Lenkimas; Gniuždymas; Sapropel; Plates; Sawdust; Compression; Flexure

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bieliauskas, Nerijus. (2007). Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai. (Masters Thesis). Lithuanian University of Agriculture. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113557-31035 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Bieliauskas, Nerijus. “Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai.” 2007. Masters Thesis, Lithuanian University of Agriculture. Accessed April 16, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113557-31035 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Bieliauskas, Nerijus. “Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai.” 2007. Web. 16 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Bieliauskas, Nerijus. Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai. [Internet] [Masters thesis]. Lithuanian University of Agriculture; 2007. [cited 2021 Apr 16]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113557-31035 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Bieliauskas, Nerijus. Termoizoliacinių plokščių iš pjuvenų ir sapropelio gamybos tyrimai. [Masters Thesis]. Lithuanian University of Agriculture; 2007. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113557-31035 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

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