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Nelson Mandela Metropolitan University
1.
Dyeshana, Vuyokazi.
A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution.
Degree: Faculty of Science, 2012, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/d1013257
► The aim of this study was to establish whether samples of South African-mined clinoptilolite could be used to remove selected metal cations from aqueous solution.…
(more)
▼ The aim of this study was to establish whether samples of South African-mined clinoptilolite could be used to remove selected metal cations from aqueous solution. The clinoptilolite samples supplied, (by Pratley SA) were in four different particle sizes. Batch study results revealed a decrease in the initial metal concentration in samples that were in contact with clinoptilolite. The finer particle size clinoptilolite had a greater capacity to remove metal cations from aqueous solution. However, ion-exchange results from atomic absorption analysis showed that the larger particle sizes, removed more magnesium ions. Magnesium was the only ion investigated in this study that was present as an exchangeable ion in the Pratley clinoptilolite chemical formula, (MgCaNa2K2)2.5(AlO2)7(SiO2)30.21H2O. Results from the ion-exchange studies showed that the decreasing order of percentage metal removal at pH 3.00 was as follows: Pb > Ni > Cu > Fe > Mg. The mass of metal ions that accumulated on one gram of clinoptilolite as determined from the isotherms was calculated to be 6.16 mg/g for lead and 0.74 mg/g for copper. Data from the lead equilibrium studies were fitted into Langmuir and Freundlich equations and linear regression was used to calculate linearity coefficients for the isotherms. The results showed that the removal of lead ions by clinoptilolite is complex as both monolayer and multilayer adsorption occurs on a heterogeneous surface.
Subjects/Keywords: Ion exchange; Clinoptilolite
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APA (6th Edition):
Dyeshana, V. (2012). A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/d1013257
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Dyeshana, Vuyokazi. “A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution.” 2012. Thesis, Nelson Mandela Metropolitan University. Accessed January 25, 2021.
http://hdl.handle.net/10948/d1013257.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dyeshana, Vuyokazi. “A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution.” 2012. Web. 25 Jan 2021.
Vancouver:
Dyeshana V. A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2012. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10948/d1013257.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dyeshana V. A study of the application of clinoptilolite as an ion exchange agent for selected metals in aqueous solution. [Thesis]. Nelson Mandela Metropolitan University; 2012. Available from: http://hdl.handle.net/10948/d1013257
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg
2.
Levin, Lance Robin.
Methanol amination using natural clinoptilolite.
Degree: 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/7249
► M.Tech.
Clinoptilolite possesses acid and base properties, and is hydrothermally stable at high temperatures. It can be reactivated by simple oxidation, and is highly selective…
(more)
▼ M.Tech.
Clinoptilolite possesses acid and base properties, and is hydrothermally stable at high temperatures. It can be reactivated by simple oxidation, and is highly selective due to its unique-shape selectivity. It is also not harmful to the environment and it has shown benefits to soil as well (Mumpton,1977). An initial study of the reactions of methanol amination was done using both natural local and synthetic clinoptilolites. Characterization of each was done before and after modification using XRD, TPD and BET analysis. The BET analysis showed an increase in the surface area and pore diameter of both the natural and synthetic types after acid treatment and calcination. Most interesting of all was the large increase in surface area, where the natural type increased from 16 to 36.7 m 2/g after acid treatment and the synthetic type increased almost 13 times, from 2 to 27.7 m2/g after acid treatment. This effect had a strong influence on the selectivity of methylamines by allowing a larger surface area to be in contact with the feed reagents. The XRD of the treated and untreated natural and synthetic clinoptilolite were compared and discussed. The catalytic properties of zeolites depend on the treatment of clinoptilolite, and the characteristic peaks of natural and the acid treated form can be identified in the XRD plots.The TPD analyses showed that there were two acid sites associated with the clinoptilolite; one weak and one strong. The synthetic clinoptilolite weak acid site also showed a much lower ammonia uptake, than the natural clinoptilolite weak acid site. Clinoptilolite was shown to be successful as a catalyst for the production of dimethylamine with high selectivity. This was attributed to a transition state shape selectivity associated with the clinoptilolite channels. The natural clinoptilolite displayed good selectivities at 400°C and a 5:1 ratio of methanol to ammonia, and gave a high conversion of > 90% ammonia to amines. The synthetic clinoptilolite gave better conversions and lower TMA selectivity than the natural clinoptilolite over a large range of feed ratios and temperatures. This included conversions of over 90% for most ratios (at 400 and 450°C). The natural clinoptilolite gave better results than those obtained using the amorphous clinoptilolite, which is currently used in industry. For example, low TMA selectivity was observed when a ratio of 5:1 or greater (methanol to ammonia) was used. The TMA selectivity is still far lower than the thermodynamic equilibrium selectivities obtained without a catalyst (62%). The catalyst lifetime has been shown to deteriorate with time.
Subjects/Keywords: Catalysis; Methanol; Clinoptilolite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Levin, L. R. (2012). Methanol amination using natural clinoptilolite. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/7249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Levin, Lance Robin. “Methanol amination using natural clinoptilolite.” 2012. Thesis, University of Johannesburg. Accessed January 25, 2021.
http://hdl.handle.net/10210/7249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Levin, Lance Robin. “Methanol amination using natural clinoptilolite.” 2012. Web. 25 Jan 2021.
Vancouver:
Levin LR. Methanol amination using natural clinoptilolite. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10210/7249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Levin LR. Methanol amination using natural clinoptilolite. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/7249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Almeida, Isabel Maria Lopes Mouta Pinto de.
Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito.
Degree: 2011, Instituto Politécnico do Porto
URL: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2542
► Tendo em conta a contaminação normal de compostos azotados existente na água de uma piscina, derivados na sua maioria do próprio banhista, é inevitável a…
(more)
▼ Tendo em conta a contaminação normal de compostos azotados existente na água de uma piscina, derivados na sua maioria do próprio banhista, é inevitável a formação de subprodutos, quando estes reagem com o cloro como desinfectante.
De todos os subprodutos de desinfecção que se formam, as cloraminas, incluídas no controlo químico da água de piscina no parâmetro cloro combinado, são as mais conhecidas. Estes compostos são responsáveis por irritações oculares, das mucosas e do trato respiratório. São estes os compostos responsáveis pelo comummente designado ‘cheiro a cloro’ característico de muitas piscinas.
Para além destes efeitos nefastos da sua presença na água, estes compostos possuem um poder desinfectante muito menor ao do ácido hipocloroso, a forma activa do cloro com maior capacidade desinfectante. Por todas estas razões, uma piscina com uma concentração de cloro combinado elevada não é adequada para uso.
Com a premissa comprovada em diversos estudos do uso de zeólitos para diminuição de compostos amoniacais por adsorção, é objectivo deste estudo comprovar a sua viabilidade no uso da redução destes compostos nas águas de piscinas. Para tal, foram realizados estudos em contínuo, numa piscina piloto onde foram aplicados hipoclorito de sódio e amoníaco, e ensaios em descontínuo, para que fosse determinada a capacidade e o tempo necessário ao equilíbrio de adsorção para este par adsorvente/adsorvato.
Nos ensaios em contínuo, a clinoptilolite adsorveu 1,652 g Cl2/kg de clinoptilolite, em aproximadamente 300 horas de funcionamento, a 23,5 ºC.
Nos ensaios em descontínuo, foram estudadas diferentes concentrações iniciais de cloro combinado. Os ensaios foram realizados a 20 ºC. Para uma concentração inicial de 4,06 mg/L Cl2, obteve-se uma capacidade de adsorção de 0,28 g Cl2/kg de clinoptilolite, ao fim de 360 horas. Para uma concentração inicial de 2 mg / L Cl2, o ensaio teve uma duração de 360 horas, e não se verificou estabilização. No entanto, findo este tempo, ocorreu a adsorção de 0,28 g Cl2/kg de clinoptilolite. Para uma concentração inicial de 0,56 mg/L Cl2, obteve-se um valor inferior, de 0,027 g Cl2/kg de clinoptilolite ao fim de 168 horas.
Given the normal contamination of nitrogen compounds in the water of a swimming pool, derived mostly from the swimmer itself, it’s inevitable the formation of by-products when these compounds are in contact with the chlorine used in disinfecting products.
Of all the disinfection by-products formed in this manner, chloramines, or combined chlorine, are the best known. These compounds are responsible for eye, skin and respiratory tract infections. These are the compounds responsible for the commonly called 'chlorine smell' characteristic of many pools.
In addition to these adverse effects of their presence in water, these compounds have a much smaller disinfectant power than that of hypochlorous acid, the active form of chlorine with greatest disinfectant capacity. For all these reasons, a pool with a high concentration of combined chlorine is not suitable for use. …
Advisors/Committee Members: Ribeiro, Margarida, Esteves, Teresa Sena, Beleza, Vitorino de Matos.
Subjects/Keywords: Cloro combinado; Clinoptilolite; Adsorção; Piscina; Combined chlorine; Clinoptilolite; Adsorption; Pool
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❌
APA ·
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APA (6th Edition):
Almeida, I. M. L. M. P. d. (2011). Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito. (Thesis). Instituto Politécnico do Porto. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2542
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Almeida, Isabel Maria Lopes Mouta Pinto de. “Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito.” 2011. Thesis, Instituto Politécnico do Porto. Accessed January 25, 2021.
http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2542.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Almeida, Isabel Maria Lopes Mouta Pinto de. “Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito.” 2011. Web. 25 Jan 2021.
Vancouver:
Almeida IMLMPd. Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito. [Internet] [Thesis]. Instituto Politécnico do Porto; 2011. [cited 2021 Jan 25].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2542.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Almeida IMLMPd. Redução da concentração de cloro combinado em águas de piscinas com aplicação de um zeólito. [Thesis]. Instituto Politécnico do Porto; 2011. Available from: http://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/2542
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université Montpellier II
4.
Farias Piñeira, Tania.
Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine.
Degree: Docteur es, Chimie organique, minérale, industrielle, 2010, Université Montpellier II
URL: http://www.theses.fr/2010MON20204
► Ce travail étudie les matériaux composites zéolithes surfactifs, principes actifs pour des applications pharmaceutiques. D'abord sont identifiées les principales propriétés physiques, chimiques et biologiques des…
(more)
▼ Ce travail étudie les matériaux composites zéolithes surfactifs, principes actifs pour des applications pharmaceutiques. D'abord sont identifiées les principales propriétés physiques, chimiques et biologiques des matériaux, requises pour des applications en tant que supports médicamenteux ciblant certaines formes de cancer. Par la suite sont décrits les différentes étapes de formulation des supports médicamenteux à base des zéolithes naturelles, les caractéristiques des matériaux intermédiaires ainsi obtenus, ainsi que les mécanismes des phénomènes interfaciaux à l'origine de l'action de ces matériaux. La dernière partie est consacrée à l'étude d'un relargage contrôlé des principes actifs de l'interface jusque dans un milieu aqueux modèle.
This work studies the composite zeolites surfactants, active principles for pharmaceutical applications. First identified the main physical, chemical and biological materials, required for applications as drug carriers targeting some cancers. Subsequently described the various stages of formulation of drug carriers based on natural zeolites, the characteristics of intermediate materials obtained, and the mechanisms of interfacial phenomena at the origin of the action of these materials. The last part is devoted to the study of controlled release of active ingredients of the interface into a model aqueous medium.
Advisors/Committee Members: Menorval, Louis-Charles de (thesis director).
Subjects/Keywords: Zéolithes Naturelles; 1h rmn; Clinoptilolite; Natural Zeolites; 1h nmr; Clinoptilolite
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Farias Piñeira, T. (2010). Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine. (Doctoral Dissertation). Université Montpellier II. Retrieved from http://www.theses.fr/2010MON20204
Chicago Manual of Style (16th Edition):
Farias Piñeira, Tania. “Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine.” 2010. Doctoral Dissertation, Université Montpellier II. Accessed January 25, 2021.
http://www.theses.fr/2010MON20204.
MLA Handbook (7th Edition):
Farias Piñeira, Tania. “Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine.” 2010. Web. 25 Jan 2021.
Vancouver:
Farias Piñeira T. Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine. [Internet] [Doctoral dissertation]. Université Montpellier II; 2010. [cited 2021 Jan 25].
Available from: http://www.theses.fr/2010MON20204.
Council of Science Editors:
Farias Piñeira T. Materiales Compuestos Zeolita-Surfactante-Fármaco con Uso Potencial en la Industria Farmacéutica : Caractérisation et développement de matériaux poreux (zéolithes), ayant une application potentielle dans l'industrie pharmaceutique cubaine. [Doctoral Dissertation]. Université Montpellier II; 2010. Available from: http://www.theses.fr/2010MON20204

Univerzitet u Beogradu
5.
Kašić, Vladan, 1962-.
Минерагенија зеолитских туфова Србије.
Degree: Rudarsko-geološki fakultet, 2019, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:19232/bdef:Content/get
► Геонауке - Економска геологија / Geosciences - Economic geology
Лежишта наших зеолитских туфова (Златокоп, Игрош, Јабланица 1, Беочин, Топоница и Сланци) која су овде била…
(more)
▼ Геонауке - Економска геологија / Geosciences -
Economic geology
Лежишта наших зеолитских туфова (Златокоп, Игрош,
Јабланица 1, Беочин, Топоница и Сланци) која су овде била предмет
детаљних истраживања, просторно и генетски везана су за вулканске и
вулканокластичне стене маринских средина сенонске и неогенске
старости и језерске седименте неогене старости и настала су као
продукт девитрификације вулканског стакла. Током лабораторијских
испитивања при изради ове докторске дисертације, примењене су
следеће аналитичке методе: оптичка испитивања петрографских
препарата; рендгенска дифракција праха (XRD); скенирајућа
електронска микроскопија (СЕМ метода); хемијска карактеризација
зеолитских туфова у оквиру које је извршено одређивање хемијског
састава и садржаја тешких метала и елемената у траговима, методом
атомско апсорпционе спектроскопије (ААS); одређивање капацитета
катјонске измене-одређивање измењивих катјона Ca2+, Mg2+, Na+ и K+
и одређивање укупног капацитета катјонске измене (KKИ) и методe
термичке карактеризације– термогравиметријска и
диференцијалнотермичка анализа (DTA/TG метода). Наведене аналитичке
методе су омогућиле реализацију постављених циљева истраживања, при
чему је: – дат преглед геолошких карактеристика лежишта и појава
зеолитских туфова на подручју Србије; – дефинисана детаљна
минералошка и кристалохемијска карактеризација зеолитских туфова
Србије; – извршена детаљна технолошка карактеризација наших
зеолитских туфова (XRD, DTA/TGA, SEM); – дефинисан генетски модел
образовања зеолитских туфова и утврђенe законитости размештаја
лежишта и појава зеолитских туфова Србије и – наведене могућности
примене различитих типова зеолита у различитим гранама привредне
делатности, укључујући приказ добијања одређених производа (у
ИТНМС-Београд) на бази зеолитских минерала наших лежишта зеолитских
туфова и њихову примену у наведеним областима
привреде...
Advisors/Committee Members: Životić, Dragana, 1964-.
Subjects/Keywords: minerageny; zeolitic tuff; Serbia; clinoptilolite;
heulandite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Kašić, Vladan, 1. (2019). Минерагенија зеолитских туфова Србије. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:19232/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 (16th Edition):
Kašić, Vladan, 1962-. “Минерагенија зеолитских туфова Србије.” 2019. Thesis, Univerzitet u Beogradu. Accessed January 25, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:19232/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kašić, Vladan, 1962-. “Минерагенија зеолитских туфова Србије.” 2019. Web. 25 Jan 2021.
Vancouver:
Kašić, Vladan 1. Минерагенија зеолитских туфова Србије. [Internet] [Thesis]. Univerzitet u Beogradu; 2019. [cited 2021 Jan 25].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:19232/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:
Kašić, Vladan 1. Минерагенија зеолитских туфова Србије. [Thesis]. Univerzitet u Beogradu; 2019. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:19232/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg
6.
Motsa, Machawe M.
Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds.
Degree: 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/5076
► M.Sc.
In this study, natural and modified clinoptilolite (CLI) reinforced polypropylene (PP) composites possessing improved mechanical and adsorptive properties were prepared through melt-mixing. Determination of…
(more)
▼ M.Sc.
In this study, natural and modified clinoptilolite (CLI) reinforced polypropylene (PP) composites possessing improved mechanical and adsorptive properties were prepared through melt-mixing. Determination of morphological, structural and thermal properties was achieved by means of different techniques (FTIR, TGA, DSC, electron microscopy and x-ray spectroscopy). Electron microscopy revealed that increasing filler loading beyond 20% leads to agglomeration of clinoptilolite particles reducing their dispersion within the matrix. Thermal studies showed that the reinforced composites had a lower thermal stability than the neat PP polymer, suggesting that the clinoptilolite interfered with polymer chain arrangement and bonding. It also showed that percentage crystallinity increased with increasing filler loading indicating that the filler particles acted as nucleating agents within the polymeric matrix during composite synthesis. Prior to the ion-exchange studies, water sorption behaviour of fabricated composites was evaluated because ion-exchange/adsorption studies were to be performed in aqueous media. It was therefore observed that the hydrophobic polymer, PP attained the property of water sorption mainly due to the porous structure of the composites created by mixing and extrusion and also by the addition of the hydrophilic filler material.
Subjects/Keywords: Clinoptilolite; Polypropylene; Heavy metals; Polluted water systems; Phenolic compounds; Reinforced composites
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Motsa, M. M. (2012). Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/5076
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Motsa, Machawe M. “Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds.” 2012. Thesis, University of Johannesburg. Accessed January 25, 2021.
http://hdl.handle.net/10210/5076.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Motsa, Machawe M. “Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds.” 2012. Web. 25 Jan 2021.
Vancouver:
Motsa MM. Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10210/5076.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Motsa MM. Clinoptilolite-polypropylene composites for the remediation of water systems polluted with heavy metals and phenolic compounds. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/5076
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg
7.
Nyembe, Dumsile W.
Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions.
Degree: 2011, University of Johannesburg
URL: http://hdl.handle.net/10210/3593
► M.Sc.
The metallurgical industrial losses of base metals with waste solutions are an environmental threat to water sources, hence these metal ions must be removed…
(more)
▼ M.Sc.
The metallurgical industrial losses of base metals with waste solutions are an environmental threat to water sources, hence these metal ions must be removed prior to discharge into receiving bodies. In this study, Southern African clinoptilolite’s capability as an ion-exchanger with respect to Cu2+ and Co2+ was investigated in order to consider its application in metal cation removal from aqueous solutions. The clinoptilolite was characterised with X-ray powder diffraction (XRD), X-ray fluorescence (XRF), FTIR, thermogravimetric analyser (TGA) and SEM-EDS. The clinoptilolite was found to be a thermally stable alumino-silicate with calcite, dolomite and quartz as the main minerals. Investigations of Co2+ and Cu2+ uptake were first performed on non-mixed solutions of these cations. It was found that Cu2+ was removed faster than Co2+ with removal efficiencies of 79% and 63% respectively. The column method was used in the cation-exchange processes with synthetic solutions of 0.0020 M, 0.0698 M and 0.2000 M of Co2+ and Cu2+ concentrations which were measured using atomic absorption spectroscopy (AAS). The effects of Co2+ and Cu2+ ions on one another’s removal efficiency were investigated on Co/Cu mixed synthetic solutions by varying their concentration ratios in solution. The Cu2+ was generally found to be removed at lower rates than the Co2+. Investigations on added impurities in the form of Si4+ and Fe2+ in the mixed Co/Cu synthetic solutions were carried out to determine their effect on the removal efficiencies of the targeted metals. It was found that both Si4+ and Fe2+ greatly reduced the removal efficiency of Cu2+, especially with increased amounts of Si4+ in the Co/Cu solution.
Subjects/Keywords: Water purification; Copper absorption and adsorption; Cobalt; Clinoptilolite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nyembe, D. W. (2011). Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/3593
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nyembe, Dumsile W. “Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions.” 2011. Thesis, University of Johannesburg. Accessed January 25, 2021.
http://hdl.handle.net/10210/3593.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nyembe, Dumsile W. “Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions.” 2011. Web. 25 Jan 2021.
Vancouver:
Nyembe DW. Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions. [Internet] [Thesis]. University of Johannesburg; 2011. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10210/3593.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nyembe DW. Natural clinoptilolite for the removal of cobalt and copper from aqueous solutions. [Thesis]. University of Johannesburg; 2011. Available from: http://hdl.handle.net/10210/3593
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
8.
Kaya, Recep Haluk.
Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
.
Degree: ESOGÜ, Mühendislik Mimarlık Fakültesi, Kimya Mühendisliği, 2011, Eskisehir Osmangazi University
URL: http://hdl.handle.net/11684/1656
► Bu çalışmada, kesikli adsorpsiyon yöntemi kullanılarak sulu çözeltilerden nikel giderimi araştırılmıştır. Bu amaçla, sepiyolit, klinoptilolit ve bentonit adsorban olarak kullanılmıştır. Deneysel çalışmalarda pH, temas süresi,…
(more)
▼ Bu çalışmada, kesikli adsorpsiyon yöntemi kullanılarak sulu çözeltilerden nikel giderimi araştırılmıştır. Bu amaçla, sepiyolit, klinoptilolit ve bentonit adsorban olarak kullanılmıştır. Deneysel çalışmalarda pH, temas süresi, sıcaklık, adsorban dozu, başlangıç derişimi gibi parametrelerin nikel giderimine etkisi incelenmiş, adsorpsiyon kinetiği ve adsorpsiyon izotermi çalışmaları yapılmıştır. Kinetik çalışmalar sonucunda adsorpsiyon verilerinin tüm adsorbanlar için ikinci mertebe kinetik modele uyduğu gözlenmiştir. İzoterm çalışmalarında ise Langmuir ve Freundlich izoterm modelleri denenmiş ve deneysel verilerin bentonit ve klinoptilolit için Freundlich, sepiyolit için Langmuir izoterm modellerine uyduğu belirlenmiştir. Ayrıca her üç adsorban için termodinamik parametreler elde edilmiştir.
Advisors/Committee Members: Kavak, Duygu (advisor).
Subjects/Keywords: Adsorpsiyon;
Nikel;
Bentonit;
Sepiyolit;
Klinoptilolit;
Adsorption;
Nickel;
Bentonite;
Sepiolite;
Clinoptilolite
Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kaya, R. H. (2011). Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
. (Thesis). Eskisehir Osmangazi University. Retrieved from http://hdl.handle.net/11684/1656
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kaya, Recep Haluk. “Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
.” 2011. Thesis, Eskisehir Osmangazi University. Accessed January 25, 2021.
http://hdl.handle.net/11684/1656.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kaya, Recep Haluk. “Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
.” 2011. Web. 25 Jan 2021.
Vancouver:
Kaya RH. Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
. [Internet] [Thesis]. Eskisehir Osmangazi University; 2011. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/11684/1656.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kaya RH. Sulu çözeltilerden adsorpsiyon yöntemiyle Ni (II)`nin giderimi
. [Thesis]. Eskisehir Osmangazi University; 2011. Available from: http://hdl.handle.net/11684/1656
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Kaušinytė,
Rasa.
Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui.
Degree: Master, Veterinary Medicine, 2014, Lithuanian Academic Libraries Network (LABT)
URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135536-03148
;
► Darbo tikslai: įvertinti klinoptilolito įtaką didelių, vidutinių ir mažų veislių šunims: maisto medžiagų pasisavinamumui, sveikatingumui, virškinamojo trakto mikrofloros kitimui. Darbo uždaviniai: 1. atlikti mokslinius ūkinius…
(more)
▼ Darbo tikslai: įvertinti klinoptilolito
įtaką didelių, vidutinių ir mažų veislių šunims: maisto medžiagų
pasisavinamumui, sveikatingumui, virškinamojo trakto mikrofloros
kitimui. Darbo uždaviniai: 1. atlikti mokslinius ūkinius bandymus
su skirtingų veislių šunimis prieš pradedant vartoti klinoptilolito
preparatą ir atskirais laikotarpiais; 2. nustatyti ėdalo ir jame
esančių maisto medžiagų suvartojimo kiekius atskirais augimo
tarpsniais; 3. įvertinti klinoptilolito preparato sudėtį ir
poveikio tendencijas; 4. nustatyti išskiriamų išmatų kiekius ir jų
cheminę sudėtį; 5. paskaičiuoti maisto medžiagų pasisavinamumą
organizme; 6. įvertinti sveikatos būklę. Praktinio darbo reikšmė:
atliktais bandymais buvo parodytas klinoptilolito teigiamas
poveikis organizmui: sveikatingumui, maisto medžiagų
pasisavinamumui ir taršos aplinkai. 2012-2013 metais, tyrimas buvo
atliktas su šiomis šunų veislėmis: jorkšyro terjerų patinais ir
kalėmis, anglų kokerspanielių kalėmis ir vokiečių aviganių
patinais. Mokslinis ūkinis bandymas trūko 6 mėn. Tyrimai buvo
atliekami skirtinguose veislynuose. Rezultatai yra apibendrinami
nustatant: šunų svorio kitimus atskirais laikotarpiais, ėdalo
praėjimo greitis per virškinimo traktą, išmatų kiekių nustatymas,
svorio skaičiavimas bandymo pradžioje ir pabaigoje ir ėdalo
suvartojimo kiekiai. Mažų veislių šunų tiriamoji grupė suvartojusi
sauso ėdalo su klinoptilolitu per parą 60,1 g, o kontrolinė grupė
62,8 g, išskyrė išmatų 44,3 g tiriamoji grupė ir 46,8 g... [toliau
žr. visą tekstą]
Aims of the study: to evaluate the efficacy
of clinoptilolite to overal wellness, changes made to GI tract
microflora and digestibility of food substances for large, middle
and small sized dogs. Objectives: 1. to perform household
experiments with dogs of different breed before giving
clinoptilolite and during various periods; 2. to evaluate
consumption of food and different food substances during different
growing periods; 3. to assess clinoptilolite’s composition and
tendencies of effect; 4. to determine the amount and chemical
composition of excreted feces; 5. to evaluate the consumption of
food substances; 6. to assess the overall health. Significance of
the study: the positive effect of clinoptilolite for wellness,
consumption of food and effect for environment was proven by our
experiments. In 2012-2013 year the experiment was conducted with
both genders of Yorkshire Terriers, females of English Cocker
Spaniel and German shepherd males. Household study took six months
and experiments were made in different breeding grounds. Results
were concluded by evaluating differences in body weight of dogs
during different time periods, measuring amount of feces excreted,
speed of food transition through the entire gastrointestinal tract,
measuring body weight in the start and in the end of the experiment
and measuring amount of consumed food. Experiment groups: small
breed dogs consumed different amount of foods. Experiment group
consumed 60,1 g of food with additive, and control... [to full
text]
Advisors/Committee Members: Jokimas, Juozas (Master’s degree committee chair), Gelažienė, Ramunė (Master’s degree session secretary), Noreika, Algis (Master’s degree committee member), Zamokas, Gintaras (Master’s degree committee member), Riškevičienė, Vita (Master’s degree committee member), Stankevičienė, Marija (Master’s degree committee member), Pamakštys, Vytautas (Master’s degree committee member), Masiulis, Marius (Master’s degree committee member), Januškevičius, Algirdas (Master’s thesis supervisor).
Subjects/Keywords: Klinoptilolitas; Šėrimas; Įtaka;
Pasisavinamumas; Šuo;
Clinoptilolite; Nutrition; Influence; Digestibility; Dog
Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kaušinytė,
Rasa. (2014). Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui. (Masters Thesis). Lithuanian Academic Libraries Network (LABT). Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135536-03148 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
Kaušinytė,
Rasa. “Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui.” 2014. Masters Thesis, Lithuanian Academic Libraries Network (LABT). Accessed January 25, 2021.
http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135536-03148 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
Kaušinytė,
Rasa. “Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui.” 2014. Web. 25 Jan 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
Kaušinytė,
Rasa. Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui. [Internet] [Masters thesis]. Lithuanian Academic Libraries Network (LABT); 2014. [cited 2021 Jan 25].
Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135536-03148 ;.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
Kaušinytė,
Rasa. Klinoptilolito panaudojimas skirtingų veislių šunų
šėrimui. [Masters Thesis]. Lithuanian Academic Libraries Network (LABT); 2014. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135536-03148 ;
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Univerzitet u Beogradu
10.
Stojić, Milica V., 1989-.
Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки.
Degree: Fakultet veterinarske medicine, 2018, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:17562/bdef:Content/get
► Ветеринарска медицина - Физиологија / Veterinary medicine - Physiology
За здравље и преживљавање новорођене телади од највећег значаја је уношење адекватне количине колострума доброг квалитета…
(more)
▼ Ветеринарска медицина - Физиологија / Veterinary
medicine - Physiology
За здравље и преживљавање новорођене телади од
највећег значаја је уношење адекватне количине колострума доброг
квалитета одмах после рођења. Поред своје функције као основног
извора нутритијената, колострум има есенцијалну функцију у
обезбеђивању имунске заштите телета у раним фазама живота. Исхрана
колострумом високог квалитета у првим сатима живота обезбеђује теле
са довољном количином имуноглобулина неопходних за успостављање
пасивног имунитета током првa три месеца живота. Зеолит се већ
користи као додатак у храну код животиња, у циљу побољшања
производних перформанси и спречавања штетног деловања микотоксина.
Дуготрајна суплементација клиноптилолитом има позитивне ефекте на
здравље млечних крава међутим утицај зеолита на квалитет и састав
колострума крава до сада није изучаван. Поред природних зеолита
применом савремених технологија добијена су и нова једињења, и у
овој докторској дисертацији коришћен je органски модификован
клиноптилолит Мinazel Plus® (Patent Co., Србија). Циљ ове
дисертације је био да се испита утицај пероралног давања органски
модификованог клиноптилолита на квалитет колострума првотелки на
основу резултата анализе физичко-хемијских, биохемијских и
имунохемијских карактеристика пуног клострума, колостралног и
крвног серума. За оглед је изабрано 36 здравих високо гравидних
првотелки холштајн- фризијске расе говеда, 30 дана пре очекиваног
термина тељења. Животиње су подељене у две групе, третирану у којој
је било 20 јединки и контролну са 16 јединки. Третирана група
животиња је почевши од 20±5 дана пре очекиваног термина тељења до
два дана после тељења, свакодневно добијала органски модификован
клиноптилолит у дози од 150 g дневно, растваран у 1 L воде и даван
per os, заливањем из стаклене флаше. Koнтролној групи животиња је
свакодневно давана чиста вода у количини од 1 L...
Advisors/Committee Members: Fratrić, Natalija, 1963-.
Subjects/Keywords: IgG; colostrum quality; primiparous dairy cows;
organically modified clinoptilolite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stojić, Milica V., 1. (2018). Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:17562/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 (16th Edition):
Stojić, Milica V., 1989-. “Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки.” 2018. Thesis, Univerzitet u Beogradu. Accessed January 25, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:17562/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stojić, Milica V., 1989-. “Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки.” 2018. Web. 25 Jan 2021.
Vancouver:
Stojić, Milica V. 1. Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки. [Internet] [Thesis]. Univerzitet u Beogradu; 2018. [cited 2021 Jan 25].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:17562/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:
Stojić, Milica V. 1. Утицај пероралног давања органски модификованог
клиноптилолита на квалитет колострума првотелки. [Thesis]. Univerzitet u Beogradu; 2018. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:17562/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
11.
De Haro del Rio, David.
Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption.
Degree: PhD, 2015, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterisation-of-hierarchical-zeolitic-materials-for-heavy-metals-adsorption(5e4e90db-59b7-4d15-b284-32e179ff1e94).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647411
► This thesis explains a method based on the homogenisation of zeta potential charges on carbon supports for the production of hierarchical structured zeolitic composites. The…
(more)
▼ This thesis explains a method based on the homogenisation of zeta potential charges on carbon supports for the production of hierarchical structured zeolitic composites. The modification of carbons’ surface chemistry allowed zeolite particles to be fixed to the support by electrostatic interactions. In order to achieve this, the size reduction of zeolite particles was carried out by two different methods: a) ball milling and b) a synthetic route to produce zeolite colloidal dispersions. Also, the seeding method, based on hydrothermal growth was compared. The prepared materials in this work were designed to be used in the sorption of cations, and to allow vitrification and thereby reduce the final adsorbent volume. Results showed that a large pollutant amount can be trapped using a lower volume of material reducing costs and final waste disposal. The zeolites used in this work were selected based on their low density framework and low Si/Al ratio. Synthetic zeolites A, Y and clinoptilolite were successfully produced. Natural clinoptilolite was also utilised in this work. Also, zeolite A was produced at nanometre scale following the clear solutions method. All materials were successfully incorporated onto supports to produce multimodal porosity materials. The hierarchical modification of natural clinoptilolite, following a straightforward and nonexpensive methodology, is one the most significant contributions of this work. Carbons are used as supports due to their high surface area, they can be obtained from low-cost sources such as agroindustrial wastes and carbons allow volume reduction if materials are vitrified at high temperatures. In this work, carbons were produced from corn cob and husk, sugar cane bagasse, cherry stones, date stones and hazelnut shells. The prepared composite materials were tested in the removal of toxic ions from water solutions: cobalt, copper and caesium ions were effectively removed from aqueous media. Adsorption experiments showed that the distribution of supported zeolite particles improved their uptake efficiency and capacity. The kinetic studies revealed an enhanced rate constant for carbon-zeolites composites in comparison with pure zeolites. Diffusivity results suggested that mass transfer characteristics are modified by using hierarchical porous materials; results showed that particle size or support nature can modify diffusion resistances, reducing intraparticle diffusion and accelerating the overall kinetic processes. Adsorption equilibrium data was correlated using Langmuir and Freundlich models.
Subjects/Keywords: 549; Zeolites; Hierarchical Structures; Clinoptilolite; Heavy Metals Removal; Adsorption Kinetics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
De Haro del Rio, D. (2015). Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterisation-of-hierarchical-zeolitic-materials-for-heavy-metals-adsorption(5e4e90db-59b7-4d15-b284-32e179ff1e94).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647411
Chicago Manual of Style (16th Edition):
De Haro del Rio, David. “Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption.” 2015. Doctoral Dissertation, University of Manchester. Accessed January 25, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterisation-of-hierarchical-zeolitic-materials-for-heavy-metals-adsorption(5e4e90db-59b7-4d15-b284-32e179ff1e94).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647411.
MLA Handbook (7th Edition):
De Haro del Rio, David. “Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption.” 2015. Web. 25 Jan 2021.
Vancouver:
De Haro del Rio D. Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption. [Internet] [Doctoral dissertation]. University of Manchester; 2015. [cited 2021 Jan 25].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterisation-of-hierarchical-zeolitic-materials-for-heavy-metals-adsorption(5e4e90db-59b7-4d15-b284-32e179ff1e94).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647411.
Council of Science Editors:
De Haro del Rio D. Synthesis and characterisation of hierarchical zeolitic materials for heavy metals adsorption. [Doctoral Dissertation]. University of Manchester; 2015. Available from: https://www.research.manchester.ac.uk/portal/en/theses/synthesis-and-characterisation-of-hierarchical-zeolitic-materials-for-heavy-metals-adsorption(5e4e90db-59b7-4d15-b284-32e179ff1e94).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647411

Linköping University
12.
Hansson, Anna.
Mechanism of zeolite activity in biogas co-digestion.
Degree: Chemistry and Biology, 2011, Linköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70777
► Biogas is a source of renewable energy and is produced at anaerobic conditions. The gas consists mainly of methane (55-70 %) and carbon dioxide…
(more)
▼ Biogas is a source of renewable energy and is produced at anaerobic conditions. The gas consists mainly of methane (55-70 %) and carbon dioxide (30-45 %). Biogas can be used as vehicle fuel after the gas has been upgraded to a methane content of approximately 97 %. There are several companies in Sweden producing biogas. Svensk biogas AB in Linköping is one of the largest. The company has two biogas production plants; one in Linköping and one in Norrköping.
To meet the surge demand for biogas it is not only important to increase the volumetric capacity of the digesters, but also to optimize the process at the existing production plants in different ways. Zeolites, a clay mineral, have earlier been shown to have a positive effect on anaerobic digestion of certain substrates. The aim of this master’s thesis was to investigate if the organic loading rate could be increased and/or if the hydraulic retention time could be reduced by addition of zeolites to a reactor treating slaughterhouse waste as a substrate. The aim was further to investigate which substance/substances that zeolites possibly could affect.
Addition of the zeolite clinoptilolite in a continuously stirred lab tank reactor showed a significantly lower accumulation of volatile fatty acids compared to that in a control reactor without zeolites added, when the hydraulic retention time was kept low (30 days) and the organic loading rate was high (4.8 kg VS/ (m3 × day)). The same results were observed upon zeolite addition in a batch experiment, which also showed a decreased lag phase. Neither the specific gas production nor the methane concentration was significantly affected by addition of zeolites. Furthermore, addition of a possible inhibitor, long-chain fatty acids (LCFA), increased the lag phase further when slaughterhouse waste was used as a substrate. The conclusion from the observed results is that a metabolite or metabolites produced during the anaerobic degradation is/are the reason to inhibition and an increased lag phase.
Subjects/Keywords: Anaerobic digestion; methane; zeolites; clinoptilolite; slaughterhouse waste; NATURAL SCIENCES; NATURVETENSKAP
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Hansson, A. (2011). Mechanism of zeolite activity in biogas co-digestion. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70777
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hansson, Anna. “Mechanism of zeolite activity in biogas co-digestion.” 2011. Thesis, Linköping University. Accessed January 25, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70777.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hansson, Anna. “Mechanism of zeolite activity in biogas co-digestion.” 2011. Web. 25 Jan 2021.
Vancouver:
Hansson A. Mechanism of zeolite activity in biogas co-digestion. [Internet] [Thesis]. Linköping University; 2011. [cited 2021 Jan 25].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70777.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hansson A. Mechanism of zeolite activity in biogas co-digestion. [Thesis]. Linköping University; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70777
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
13.
Attari, Mahshid.
Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites.
Degree: 2015, University of Western Ontario
URL: https://ir.lib.uwo.ca/etd/3186
► Mercury has been recognized as one of the most hazardous heavy metals. The discharge of effluents containing mercury in soil, sediments and water can inflict…
(more)
▼ Mercury has been recognized as one of the most hazardous heavy metals. The discharge of effluents containing mercury in soil, sediments and water can inflict an irreversible harm to the environment and human health. In this work, zeolitized coal fly ash as well as gold and gold-iron modified zeolites were successfully employed for mercury removal from a typical industrial wastewater. X-ray diffraction (XRD), thermo-gravimetrical analyses (TGA), surface area measurement (BET), and scanning electron microscopy (SEM-EDX) were utilized to explore the characteristics of the raw and modified zeolites. A pseudo-second-order kinetic model was identified to best represent the kinetic data for mercury adsorption on all examined adsorbents. The adsorption mechanism of mercury on examined zeolite was found to be a multi steps process and the rate-limiting step was mainly surface adsorption.The isothermal adsorption data conformed to the Langmuir and the Freundlich models. Base on kinetic and isothermal results, both chemisorption and physisorption were effective during adsorption process.
Subjects/Keywords: Mercury; adsorption; zeolite LTA; clinoptilolite; isotherm; kinetics.; Chemical Engineering
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Attari, M. (2015). Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3186
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Attari, Mahshid. “Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites.” 2015. Thesis, University of Western Ontario. Accessed January 25, 2021.
https://ir.lib.uwo.ca/etd/3186.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Attari, Mahshid. “Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites.” 2015. Web. 25 Jan 2021.
Vancouver:
Attari M. Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites. [Internet] [Thesis]. University of Western Ontario; 2015. [cited 2021 Jan 25].
Available from: https://ir.lib.uwo.ca/etd/3186.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Attari M. Mercury Removal from Aqueous Solution Using Natural, Synthetic, and Modified Zeolites. [Thesis]. University of Western Ontario; 2015. Available from: https://ir.lib.uwo.ca/etd/3186
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Utah State University
14.
Young, Ashton M.
Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production.
Degree: MS, Biological and Irrigation Engineering, 2011, Utah State University
URL: https://digitalcommons.usu.edu/etd/986
► Alkaline conditions induced by algae growth in wastewater stabilization ponds create deprotonated ammonium ions that result in ammonia gas (NH3) volatilization. If algae are…
(more)
▼ Alkaline conditions induced by algae growth in wastewater stabilization ponds create deprotonated ammonium ions that result in ammonia gas (NH3) volatilization. If algae are utilized to remediate wastewater through uptake of phosphorus, the resulting nitrogen loss will hinder this process because algae generally require a stoichiometric molar ratio of N16P1. Lower ratios of N/P due to loss of ammonia gas will limit the growth and yield of algae, and therefore will reduce phosphorus removal from the water phase into the algae phase. In order to reduce nitrogen loss through volatilization, an ammonium selective zeolite,
clinoptilolite, can be used to sequester nitrogen from the water phase as ammonium ion and in a form that is bioavailable for uptake and growth of algae. A novel algae biofilm rotating photo bioreactor (RPB) with
clinoptilolite integrated to the outermost surface as the substratum for algae biofilm attachment and growth has been designed, constructed, and tested for ammonium capture and algae biomass production, with simultaneous removal of the algal nutrient phosphorus from water. The clinoptilolite‐based RPB (cRPB) provides algal biomass that can serve as feedstock for biofuel production through uptake of zeolite‐based nitrogen and water phase phosphorus.
Advisors/Committee Members: Ronald C. Sims, Charles D. Miller, Issa Hamud, ;.
Subjects/Keywords: Algae Biofilm; Nitrogen; Phosphorus; Photobioreactor; Wasterwater Remediation; Zeolite Clinoptilolite; Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Young, A. M. (2011). Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production. (Masters Thesis). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/986
Chicago Manual of Style (16th Edition):
Young, Ashton M. “Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production.” 2011. Masters Thesis, Utah State University. Accessed January 25, 2021.
https://digitalcommons.usu.edu/etd/986.
MLA Handbook (7th Edition):
Young, Ashton M. “Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production.” 2011. Web. 25 Jan 2021.
Vancouver:
Young AM. Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production. [Internet] [Masters thesis]. Utah State University; 2011. [cited 2021 Jan 25].
Available from: https://digitalcommons.usu.edu/etd/986.
Council of Science Editors:
Young AM. Zeolite‐Based Algae Biofilm Rotating Photobioreactor for Algae and Biomass Production. [Masters Thesis]. Utah State University; 2011. Available from: https://digitalcommons.usu.edu/etd/986

California State University – Sacramento
15.
Soehn, Ryan Amir.
Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications.
Degree: MS, Chemistry, 2019, California State University – Sacramento
URL: http://hdl.handle.net/10211.3/210158
► Zeolites are mesoporous natural or synthetically prepared aluminosilicate materials widely used as adsorbates, waste remediation agents, and catalysts. Due to the complexity of the synthetic…
(more)
▼ Zeolites are mesoporous natural or synthetically prepared aluminosilicate materials widely used as adsorbates, waste remediation agents, and catalysts. Due to the complexity of the synthetic process, there has been growing interest to modify readily available natural zeolites, thus transforming them into valuable active zeolite materials. Dealumination of a parent zeolite material, achieved through chemical and physical processing, produces stable reactive defect sites that can be subsequently utilized to insert new desired atoms into the structure. This study performs an in-depth analysis of each intermediary step necessary for metal substitution of natural zeolites to be successful. The results presented shows the successful controlled dealumination of zeolite mordenite using a hydrothermal process followed by washing to remove the extra-framework aluminum. Successful "atom planting" of aluminum (III) using AlCl3 and titanium (IV) using TiCl4 was performed on the dealuminated material as well as the non-modified material. Attenuated Total Reflectance Infrared Spectroscopy (ATR FTIR), solid state Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy (ss MAS NMR), and Diffuse Reflectance Ultraviolet Spectroscopy (DRUV) was utilized to monitor the dealumination and atom-planting structural changes in the material throughout the modification process. The newly modified zeolite hopefully is expected to exhibit novel catalytic properties not shown by the starting material.
Advisors/Committee Members: Crawford, Susan.
Subjects/Keywords: Changing catalytic properties; Zeolite modification; Zeolites; Mordenite; Clinoptilolite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Soehn, R. A. (2019). Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications. (Masters Thesis). California State University – Sacramento. Retrieved from http://hdl.handle.net/10211.3/210158
Chicago Manual of Style (16th Edition):
Soehn, Ryan Amir. “Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications.” 2019. Masters Thesis, California State University – Sacramento. Accessed January 25, 2021.
http://hdl.handle.net/10211.3/210158.
MLA Handbook (7th Edition):
Soehn, Ryan Amir. “Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications.” 2019. Web. 25 Jan 2021.
Vancouver:
Soehn RA. Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications. [Internet] [Masters thesis]. California State University – Sacramento; 2019. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10211.3/210158.
Council of Science Editors:
Soehn RA. Metal substitution of natural zeolites clinoptilolite and mordenite via hydrothermal dealumination and atom planting for catalytic applications. [Masters Thesis]. California State University – Sacramento; 2019. Available from: http://hdl.handle.net/10211.3/210158

University of Canterbury
16.
Jorgensen, Tony Charles.
Removal of ammonia from wastewater by ion exchange in the presence of organic compounds.
Degree: M. Eng., Chemical Engineering, 2002, University of Canterbury
URL: http://dx.doi.org/10.26021/1560
► The aim of the work described in this thesis was to study the removal of ammonium ions from water by ion exchange. The classical technique…
(more)
▼ The aim of the work described in this thesis was to study the removal of ammonium ions from water by ion exchange. The classical technique is to use biological nitrification and denitrification to convert ammonia into nitrogen gas. Removal by ion exchange offers a number of advantages, such as the ability to handle shock loadings and to polish water to a very high specification. The ion exchanger used in this project was clinoptilolite, a naturally occurring zeolite. Previous research has included characterisation of clinoptilolite, the effect of other common cations on uptake, biological regeneration, and a few other studies. A comparison with other exchangers was also conducted. Much of the available literature is concerned with clinoptilolite and occasionally with mordenite, however modern ion exchangers are polymer based. Two polymeric ion exchangers (Dowex 50w-x8, and Purolite MN500) were evaluated in this project. The main scope of this thesis was to look at the effect that organic pollutants has on ammonium ion removal during ion exchange. The results of batch equilibrations of NH4+ and the three exchanger resins can be seen in chapter 4.0. They show that the presence of an organic compound enhanced the uptake of NH4+ in most cases onto clinoptilolite and Purolite MN500. There was no apparent uptake onto Dowex 50w-x8. Further experiments with a sample of real industrial wastewater (woolscour wastewater) showed varied results, showing that each site should carry out its own pilot scale testing during plant design. Other experimental work showed that the exchanger resins adsorb little or none of the organic compounds in solution. These results can be seen in chapter 5.0. ii Removal of ammonia from wastewater by ion exchange in the presence of organics. Studies in a packed column showed that the presence of organic compounds had little or no effect on NH4+ removal. There was however an increase in capacity after each regeneration of the bed and continued removal after breakthrough. The same results were achieved in the control experiment with no organic compounds present, hence these results are not related to the presence of an organic compound. The presence of NH4+ and various compounds did however provide micro-organisms with substrates from which to grow causing hydraulic difficulties in the column. See chapter 6.0 for these results. The final section of experimental work studied whether the presence of organic compounds changed the rate of uptake of NH4+. The results in chapter 7.0 show that there was no effect on the rate of NH4+ uptake.
Subjects/Keywords: Ion exchange; ammonia; wastewater; clinoptilolite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jorgensen, T. C. (2002). Removal of ammonia from wastewater by ion exchange in the presence of organic compounds. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/1560
Chicago Manual of Style (16th Edition):
Jorgensen, Tony Charles. “Removal of ammonia from wastewater by ion exchange in the presence of organic compounds.” 2002. Masters Thesis, University of Canterbury. Accessed January 25, 2021.
http://dx.doi.org/10.26021/1560.
MLA Handbook (7th Edition):
Jorgensen, Tony Charles. “Removal of ammonia from wastewater by ion exchange in the presence of organic compounds.” 2002. Web. 25 Jan 2021.
Vancouver:
Jorgensen TC. Removal of ammonia from wastewater by ion exchange in the presence of organic compounds. [Internet] [Masters thesis]. University of Canterbury; 2002. [cited 2021 Jan 25].
Available from: http://dx.doi.org/10.26021/1560.
Council of Science Editors:
Jorgensen TC. Removal of ammonia from wastewater by ion exchange in the presence of organic compounds. [Masters Thesis]. University of Canterbury; 2002. Available from: http://dx.doi.org/10.26021/1560

University of Manchester
17.
Jones, Robert.
FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT.
Degree: 2018, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:313310
► The Site Ion Exchange Plant (SIXEP) (Sellafield, Cumbria, UK) treats spent nuclear fuel storage pond liquors by utilising sand bed filtration to remove Mg containing…
(more)
▼ The Site Ion Exchange Plant (SIXEP) (Sellafield,
Cumbria, UK) treats spent nuclear fuel storage pond liquors by
utilising sand bed filtration to remove Mg containing particulates
present in the effluent followed by an ion exchange process to
remove Cs and Sr. Clinoptilolite (Na6Al6Si30O72.24H2O) the ion
exchange media. After treatment the effluent is discharged to sea.
During inspections of the discharge line a significant solid
formation was encountered in the mid-2000s. The solid was poorly
characterised and limited analysis was performed. At the time
biofilm was suggested as the means of adhering a fine fraction of
clinoptilolite to the pipeline surface. Three areas of study were
investigated in order to identify the source and means of these
solids adhering to the discharge pipeline surface. These were: the
precipitation of mineral phases from a variety of possible
discharge effluent compositions; the dissolution/degradation of
clinoptilolite under process like conditions including ɣ-radiation
exposure; and the demonstration of the performance of
polyelectrolyte as an adsorption medium when contacted with a
clinoptilolite solution onto stainless steel surfaces. Mineral
phases from a range of likely SIXEP effluent compositions have been
precipitated from static solution conditions. The predominantly
aluminosilicate containing solids have similar characteristics
(elemental composition and morphology) to the solid from the
discharge line, but this is based upon limited and poor
characterisation data from the recovered material. Dissolution
studies of clinoptilolite displayed a fine fraction release into
solution irrespective of the inclusion of a prewashing step. An
incongruent release of Si from clinoptilolite was observed which
was not considered in the original model put forward for this pipe
fouling phenomenon. The presence of colloidal Si was found to
increase in irradiated clinoptilolite samples (50 MGy total dose)
when compared to un-irradiated material. Polyelectrolyte was found
to cause fine fractions of clinoptilolite to adhere to a stainless
steel surface (304L) and as a result provides an additional
attachment mechanism for solids within the pipeline to what has
been previously proposed. Following this work, it is suggested that
the primary mechanism to justify this solids formation in the SIXEP
discharge line is that the presence of polyelectrolyte and biofilms
causes adsorption of clinoptilolite fines and colloids onto the
inner pipe surface. Reprecipitation of aqueous species released
through incongruent dissolution of the clinoptilolite should be
considered as minor bulking agents to the main clinoptilolite fines
solid.
none
none
Advisors/Committee Members: WOGELIUS, ROY RA, Sharrad, Clint, Wogelius, Roy.
Subjects/Keywords: Clinoptilolite; Pipe fouling; SIXEP; Incongurent disolution; Fines buildup; Polyelectrolyte
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jones, R. (2018). FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:313310
Chicago Manual of Style (16th Edition):
Jones, Robert. “FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT.” 2018. Doctoral Dissertation, University of Manchester. Accessed January 25, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:313310.
MLA Handbook (7th Edition):
Jones, Robert. “FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT.” 2018. Web. 25 Jan 2021.
Vancouver:
Jones R. FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Jan 25].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:313310.
Council of Science Editors:
Jones R. FORMATION AND ATTACHMENT OF SOLIDS WITHIN A PIPELINE
EMANATING FROM A NUCLEAR EFFLUENT TREATMENT PLANT. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:313310

University of Alberta
18.
Adamaref, Solmaz.
Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination.
Degree: MS, Department of Chemical and Materials
Engineering, 2015, University of Alberta
URL: https://era.library.ualberta.ca/files/5q47rr32m
► Water is an essential resource for life and sources of fresh water are limited. As population and industries are increasing around the world the need…
(more)
▼ Water is an essential resource for life and sources of
fresh water are limited. As population and industries are
increasing around the world the need for reuse the water is
increased. One of the most important industries in Alberta, Canada
is oilsands industry. Steam assisted gravity drainage (SAGD) is a
commercial, in-situ oil production technology in which water plays
a central role. Purification of SAGD produced water is very vital
for sustainable application of this technology. Researchers are
motivated to develop new energy efficient methods and technologies
to reuse water. Salinity is one major issue in SAGD produced water;
sodium concentration in SAGD water (over 1400 ppm) is dominant as
compared to other mineral ions. Therefore, to prevent scaling in
boilers, desalination of SAGD water is very important for reuse of
SAGD produced water. Membrane technology is the most widely used
technology for water desalination. Recently, disc membranes
generated from high purity natural clinoptilolite mineral rock have
shown promising water desalination and de-oiling performance. In
this study a new strategy for scaling up production of these types
of membranes for industrial applications was applied and developed.
Natural clinoptilolite powder from St. Cloud (Winston, NM, USA) and
aluminum phosphate as a binder was deposited on the inner surface
of porous stainless steel tubes by dip-drain technique. Phase
composition and morphology of the coating materials were
investigated using X-ray diffraction and scanning electron
microscopy. Besides, particle size distribution of slurry is
studied. The membrane performance (permeation and separation) in
water softening were evaluated using Edmonton (Alberta, Canada)
municipal tap water as feed source. Preliminary experimental
results show a high water flux of 34.20 kg/m2.h and 91.88% and
87.03% of reduction of hardness and conductivity in a once-through
membrane process at 160°C and feed pressure of 780 kPa,
respectively. These results show that natural zeolite coated
stainless steel tubular membranes have great potential for
large-scale desalination of industrial wastewater at high
temperature and pressures. The potential application of the
membrane in treatment of steam assisted gravity drainage (SAGD)
produced water at high temperature and pressure will be
discussed.
Subjects/Keywords: SAGD; Clinoptilolite; Tubular membrane; Stainless steel support; Natural zeolite; Desalination; Membrane; Water softening
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Adamaref, S. (2015). Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5q47rr32m
Chicago Manual of Style (16th Edition):
Adamaref, Solmaz. “Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination.” 2015. Masters Thesis, University of Alberta. Accessed January 25, 2021.
https://era.library.ualberta.ca/files/5q47rr32m.
MLA Handbook (7th Edition):
Adamaref, Solmaz. “Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination.” 2015. Web. 25 Jan 2021.
Vancouver:
Adamaref S. Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination. [Internet] [Masters thesis]. University of Alberta; 2015. [cited 2021 Jan 25].
Available from: https://era.library.ualberta.ca/files/5q47rr32m.
Council of Science Editors:
Adamaref S. Natural Clinoptilolite Composite Coated Stainless Steel
Tubular Membranes for Water Softening and Desalination. [Masters Thesis]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/5q47rr32m

University of Alberta
19.
Zarro, Omar.
Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes.
Degree: MS, Department of Chemical and Materials
Engineering, 2014, University of Alberta
URL: https://era.library.ualberta.ca/files/th83m006v
► Separating hydrogen and carbon dioxide from syngas is a necessary step for many industrial processes. Membrane separations are an attractive solution as they can operate…
(more)
▼ Separating hydrogen and carbon dioxide from syngas is
a necessary step for many industrial processes. Membrane
separations are an attractive solution as they can operate at
process temperatures (200-500 °C) and operate with a simple
process. Pure thermally stable (up to 600 °C) clinoptilolite
zeolite was mixed with a Portland cement matrix, pressed, and cured
to prepare composite membranes. Such systems offer scalable,
thermally stable, and low cost membranes for H2 and CO2 separation
from syngas. Pure cement membranes demonstrated CO2 impermeability.
Single gas permeation measurement of H2 and CO2 was conducted and
demonstrated high H2/CO2 selectivities up to 115 with permeances on
the order of 10-9 mol/m2·Pa·s for the composite membranes. The gas
diffusion tests firmly exhibited molecular sieving toward H2 and
CO2. These results suggest that cost-effective natural zeolites
combined with ordinary Portland cement are capable of selective
separation of H2 and encourage future development of this
concept.
Subjects/Keywords: Natural Zeolite; Gas Permeation Measurement; Membranes; Syngas; Cement; Membrane gas separation; Clinoptilolite; Mixed matrix membranes
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zarro, O. (2014). Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/th83m006v
Chicago Manual of Style (16th Edition):
Zarro, Omar. “Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes.” 2014. Masters Thesis, University of Alberta. Accessed January 25, 2021.
https://era.library.ualberta.ca/files/th83m006v.
MLA Handbook (7th Edition):
Zarro, Omar. “Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes.” 2014. Web. 25 Jan 2021.
Vancouver:
Zarro O. Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes. [Internet] [Masters thesis]. University of Alberta; 2014. [cited 2021 Jan 25].
Available from: https://era.library.ualberta.ca/files/th83m006v.
Council of Science Editors:
Zarro O. Separation of Hydrogen and Carbon Dioxide from Syngas Using
Clinoptilolite Natural Zeolite and Ordinary Portland Cement
Composite Membranes. [Masters Thesis]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/th83m006v
20.
Farjoo, Afrooz.
Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents.
Degree: PhD, Department of Chemical and Materials
Engineering, 2016, University of Alberta
URL: https://era.library.ualberta.ca/files/cj6731403p
► The objective of this research was to develop new molecular sieve materials and to examine their applications in membrane as well as adsorptive gas separation…
(more)
▼ The objective of this research was to develop new
molecular sieve materials and to examine their applications in
membrane as well as adsorptive gas separation processes.
Membrane-based processes have the potential to overcome the
limitations of conventional gas separation techniques such as
high-energy consumption and environmental concerns. Natural zeolite
membranes have recently been shown to demonstrate potential in
separation of H2 from H2/CO2 mixtures or H2/Light hydrocarbon
mixtures and can be used as a model for development of robust
molecular sieve membranes with superior separation characteristics.
Recently, disc membranes generated from high purity natural
clinoptilolite mineral rock showed promising gas separation
performance. In this study a new strategy for scaling up the
production of these types of membranes for industrial applications
was applied and developed in different configurations such is disk
or tubular. The membranes’ permeation, separation performance and
separation mechanisms were evaluated using different
characterization methods and tests at different conditions. The
results showed that natural zeolite membranes such as compact disk
or coated stainless steel tubular ones have great potential for
large-scale gas separation at high temperature and pressures. To
evaluate the potential of membranes in industrial applications,
single versus multicomponent gas permeance was compared and
discussed. In another study, a new adsorbent for the adsorptive
separation of ethylene from ethane as one of the most energy
intensive separations was created by incrementally changing the
pore size of clinoptilolite. The structure of a naturally occurring
clinoptilolite was modified through ammonium exchange, calcination,
and post-calcination steam treatment. The results demonstrated the
potential to use steamed clinoptilolite to increase the efficiency
of the adsorptive separation of ethane and ethylene. Results of
this work indicate that natural zeolites can be applied as robust
membranes and manipulated as unique adsorbents for enhanced gas
separation. With further research, natural zeolites could serve as
economically feasible membranes and adsorbents for countless
industrial processes.
Subjects/Keywords: Gas separation; Zeolite; Clinoptilolite; Adsorption
…65
5. Pressed clinoptilolite and copper-clinoptilolite disk membranes for hydrogen… …75
5.3.2 Mixed clinoptilolite-copper composite membranes… …82
5.4.1 Gas permeation through pressed clinoptilolite disks… …82
5.4.2 Mixed clinoptilolite-copper composite membrane… …130
7. Single and multi-component transport through metal supported
clinoptilolite…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Farjoo, A. (2016). Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/cj6731403p
Chicago Manual of Style (16th Edition):
Farjoo, Afrooz. “Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents.” 2016. Doctoral Dissertation, University of Alberta. Accessed January 25, 2021.
https://era.library.ualberta.ca/files/cj6731403p.
MLA Handbook (7th Edition):
Farjoo, Afrooz. “Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents.” 2016. Web. 25 Jan 2021.
Vancouver:
Farjoo A. Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents. [Internet] [Doctoral dissertation]. University of Alberta; 2016. [cited 2021 Jan 25].
Available from: https://era.library.ualberta.ca/files/cj6731403p.
Council of Science Editors:
Farjoo A. Sustainable Gas Separation by Application of Natural
Zeolites as Membranes and Adsorbents. [Doctoral Dissertation]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/cj6731403p

Universidade do Rio Grande do Sul
21.
Hubner, Patricia.
Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas.
Degree: 2017, Universidade do Rio Grande do Sul
URL: http://hdl.handle.net/10183/163888
► Curativos utilizados no tratamento de feridas crônicas e queimaduras devem apresentar carac terísticas antimicrobianas. Sabe-se que compostos de prata são utilizados há muito tempo como…
(more)
▼ Curativos utilizados no tratamento de feridas crônicas e queimaduras devem apresentar carac terísticas antimicrobianas. Sabe-se que compostos de prata são utilizados há muito tempo como antissépticos, mas apresentam alguns problemas relacionados ao modo de liberação. A fim de controlar essa liberação, os íons Ag+ podem ser imobilizados em suportes, como por exemplo, zeólitas, que por sua vez devem estar dispersas no filme que é utilizado como curativo. Nesse contexto, este trabalho tem como objetivo o desenvolvimento e a caracterização de filmes à base de gelatina, adicionados de zeólita clinoptilolita impregnada com íons prata e a avaliação das propriedades antimicrobianas, visando à aplicação no tratamento de ferimentos. Filmes com 5,7 e 10% (m/v) de gelatina e 0, 5, 10, 15, 20 e 25% (v/v) de glicerol foram produzidos e caracterizados quanto à espessura, teor de umidade, capacidade de absorção de água (CAA), caráter hidrofílico, propriedades mecânicas, permeabilidade ao vapor de água (PVA), fluxo de permeação de vapor de água (FPVA), morfologia por microscopia eletrônica de varredura (MEV) e espectroscopia de infravermelho por transformada de Fourier (FTIR). Com base nas características determinadas, foi possível selecionar três formulações para incorporação das zeólitas (10% de gelatina e 15, 20 e 25 % de glicerol). A zeólita comercial clinoptilolita foi caracterizada e impregnada com íons Ag+. Na sequência, por meio de um ensaio antimicrobiano preliminar, foi definido que as zeólitas seriam adicionadas aos filmes nas concentrações de 0,5; 1 e 2 % (m/v). Os filmes à base de gelatina com zeólitas foram caracterizados pelos mesmos ensaios citados e também por análise tennogravimétrica (TGA), calorimetria exploratória diferencial (DSC) e quantiticação de íons prata por espectrometria de absorção atômica com chama (FAAS). Através da avaliação antimicrobiana qualitativa, percebeu-se que a ação antimicrobiana é decorrente da presença dos íons Ag+, porém não foram identificadas diferenças expressivas entre o tamanho dos halos de inibição formados para as diferentes concentrações de clinoptilolita-Ag. Através do ensaio microbiológico quantitativo verificou-se que não havia carga bacteriana na solução onde o filme estava imerso. Os resultados obtidos mostram que os filmes desenvolvidos neste estudo têm potencial para serem aplicados como curativos, atuando como antimicrobiano, auxiliando, desta forma, na cicatrização dos ferimentos.
Dressings used in treatment of bums and chronic wound must present antimicrobial characteristics. It is known that silver compounels are used for long time as antiseptics, but they have some problems related to release mode. To control this release, Ag+ ions may be immobilized in supports, as zeolites, that must be disperseel in the film used as wound dressing. In this sense, this work objectives the development and characterization of gelatin based-films added of clinoptilolite zeolite impregnated with silver ions and antimicrobial properties evaluation, aiming the application in wound…
Advisors/Committee Members: Tessaro, Isabel Cristina, Marcilio, Nilson Romeu.
Subjects/Keywords: Biofilmes; Active dressings; Gelatin-based films; Biopolímeros; Zeolitas; Clinoptilolite zeolite; Antimicrobianos; Silver tons; Antimicrobial action
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hubner, P. (2017). Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/163888
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hubner, Patricia. “Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas.” 2017. Thesis, Universidade do Rio Grande do Sul. Accessed January 25, 2021.
http://hdl.handle.net/10183/163888.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hubner, Patricia. “Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas.” 2017. Web. 25 Jan 2021.
Vancouver:
Hubner P. Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2017. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10183/163888.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hubner P. Desenvolvimento de filmes de gelatina contendo zeólita clinoptilolita impregnada com íons prata e avaliação das propriedades antimicrobianas. [Thesis]. Universidade do Rio Grande do Sul; 2017. Available from: http://hdl.handle.net/10183/163888
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University
22.
Lewis, Michael D.
Clinoptilolite, as a N, K, and Zn source for plants.
Degree: MS(M.S.), Horticulture, 1981, Colorado State University
URL: http://hdl.handle.net/10217/80814
► Clinoptilolite was tested for its capacity to enhance availability of N, K, and Zn in the production of vegetable and flower species. Ammonium charged zeolite…
(more)
▼ Clinoptilolite was tested for its capacity to enhance availability of N, K, and Zn in the production of vegetable and flower species. Ammonium charged zeolite and mixtures of zeolite plus ammonium sulfate or urea were evaluated in a greenhouse experiment involving a medium (13% clay) textured alkaline soil with no drainage provided and a light (6% clay) textured soil which was leached 6 times during the course of the experiment. Controls were ammonium sulfate and urea. Banding provided the most effective method of application of zeolite compared to incorporation when radish, Raphanus sativus cv. Improved Scarlet Globe, was used as a test species. Banded ammonium charged zeolite increased radish growth in both medium and light textured soils. A decrease in N03-N loss occurred in the leached light soil. A physical mixture of uncharged zeolite and ammonium sulfate provided no increase in radish growth or reduction in leachate nitrate. Banding zeolite, in conjunction with urea, reduced growth suppression which occurred when only urea was added. Growth response of tomato Lycopersicon esculentum cv. Spring Giant, were evaluated under field conditions, using banded treatments of ammonium charged zeolite, ammonium charged zeolite plus ammonium sulfate and uncharged zeolite plus ammonium sulfate. No differences in plant growth occurred among zeolite and control treatments due to unavoidable additions of nitrate nitrogen in the irrigation water. Two greenhouse experiments were used to evaluate the influence of zeolite on vegetables, cut flowers and potted plant crops in two different media. Radish, Raphanus sativus cv. Improved Scarlet Globe responded positively to charged and naturally potassic zeolites, equaling growth obtained by the fertilizer injection method. Lettuce, Lactuca sativa cv. Grand Rapids Forcing (H-54); beans, Phaseolus vulgaris cv. Cherokee; chrysanthemums, Chrysanthemum morifolium cv. Bonnie Jean and snapdragon, Antirrhinum majus cv. Missouri growth was not positively affected by predesigned zeolite levels. Pot crops of poinsettia, Euphorbia pulcherrima cv. Dark Red Annette Hegg and Easter lily, Lilium longiflorum cv. Ace also were not responsive.
Advisors/Committee Members: Moore, Frank Devitt, III (advisor), Goldsberry, Kenneth L., 1932- (committee member), Schmehl, W. R. (committee member).
Subjects/Keywords: Soil chemistry; Clinoptilolite; Plant-soil relationships
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lewis, M. D. (1981). Clinoptilolite, as a N, K, and Zn source for plants. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/80814
Chicago Manual of Style (16th Edition):
Lewis, Michael D. “Clinoptilolite, as a N, K, and Zn source for plants.” 1981. Masters Thesis, Colorado State University. Accessed January 25, 2021.
http://hdl.handle.net/10217/80814.
MLA Handbook (7th Edition):
Lewis, Michael D. “Clinoptilolite, as a N, K, and Zn source for plants.” 1981. Web. 25 Jan 2021.
Vancouver:
Lewis MD. Clinoptilolite, as a N, K, and Zn source for plants. [Internet] [Masters thesis]. Colorado State University; 1981. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/10217/80814.
Council of Science Editors:
Lewis MD. Clinoptilolite, as a N, K, and Zn source for plants. [Masters Thesis]. Colorado State University; 1981. Available from: http://hdl.handle.net/10217/80814

Univerzitet u Beogradu
23.
Milićević, Sonja Z. 1979-.
Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima.
Degree: Tehnološko-metalurški fakultet, 2016, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:11545/bdef:Content/get
► Hemijska tehnologija - Inženjerstvo zaštite životne sredine / Chemical technology - Environmental Engineering
U ovom radu ispitivana je mogucnost primene prirodnog zeolita-klinoptilolita iz nekoliko ležišta:…
(more)
▼ Hemijska tehnologija - Inženjerstvo zaštite životne
sredine / Chemical technology - Environmental
Engineering
U ovom radu ispitivana je mogucnost primene
prirodnog zeolita-klinoptilolita iz nekoliko ležišta: “Zlatokop”
Vranjska Banja, “Igroš Vidojevic” Brus i “Baia Mare” Rumunija za
adsorpciju jona bakra iz vodenih rastvora, kao i iz otpadnih voda
industrijskih sistema RTB Bor. Zbog velike koncentracije bakra u
ovim otpadnim vodama, neophodno je da se pre ispuštanje u prirodne
vodotokove sadržaj bakra smanji do dozvoljene vrednosti
koncentracije od 1 mg dm-3. S druge strane, velika kolicina otpadne
vode koja napušta industrijske sisteme u okviru RTB Bor, sadrži
veliku kolicinu bakra koji potencijalno može da bude iskorišcen.
Zato je u ovom radu adsorpcija izabrana kao metoda kojom je moguce
postici regeneraciju adsorbenta i ponovo iskoristiti adsorbat. U
radu je pokazano da se bakar iz otpadne vode može efikasno ukloniti
adsorpcijom na prirodnom zeolitu kao i da se zasiceni adsorbent
može regenerisati, a bakar dobijen regeneracijom vratiti u postupak
proizvodnje. Ovo predstavlja efikasan nacin za valorizaciju bakra
iz rudnickih otpadnih voda. S obzirom na nisku cenu i dostupnost
prirodnog zeolita iz ležišta “Zlatokop” (Vranjska Banja), ovaj tuf
je, nakon laboratorijskih ispitivanja, detaljno ispitan kao
adsorbent u realnim uslovima. Predložena je optimalna tehnološka
šema za uklanjanje bakra iz otpadnih voda RTB Bor u diskontinualnim
i kontinualnim sistemima. Ispitivanja u diskontinualnim sistemima
pokazala su da efikasnost adsorpcije zavisi od koncentracije bakra
u pocetnom rastvoru, vrednosti pH, krupnoce zrna adsorbenta kao i
odnosa cvrsto/tecno. Proces adsorpcije u diskontinualnom sistemu
sledi Hoov model pseudo-drugog reda, konstanta brzine opada sa
povecanjem koncentracije bakra i vrednosti pH. Proces adsorpcije
nije ogranicen procesima difuzije...
Advisors/Committee Members: Povrenović, Dragan, 1959-.
Subjects/Keywords: copper; zeolite; clinoptilolite; ion exchange;
adsorption; kinetic; fixed bed systems; mining wastewater;
regeneration
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Milićević, S. Z. 1. (2016). Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:11545/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 (16th Edition):
Milićević, Sonja Z 1979-. “Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima.” 2016. Thesis, Univerzitet u Beogradu. Accessed January 25, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:11545/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Milićević, Sonja Z 1979-. “Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima.” 2016. Web. 25 Jan 2021.
Vancouver:
Milićević SZ1. Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima. [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Jan 25].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:11545/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:
Milićević SZ1. Adsorpcija jona bakra iz rudničkih otpadnih voda na
različitim mineralnim adsorbentima. [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:11545/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu
24.
Omerašević, Mia, 1983-.
Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma.
Degree: Fakultet za fizičku hemiju, 2017, Univerzitet u Beogradu
URL: https://fedorabg.bg.ac.rs/fedora/get/o:16805/bdef:Content/get
► Fizička hemija - Fizička hemija materijala / Physical Chemistry - Physical Chemistry of Materials
Ispitan je mehanizam visoko temperaturskih faznih transformacija cezijum (Cs) izmenjenih zeolita…
(more)
▼ Fizička hemija - Fizička hemija materijala /
Physical Chemistry - Physical Chemistry of
Materials
Ispitan je mehanizam visoko temperaturskih faznih
transformacija cezijum (Cs) izmenjenih zeolita tipa LTA i
klinoptilolita (CLI). Analizirane su osobine dobijenih faza u
pogledu termalne stabilnosti i otpornosti na luţenje jona cezijuma.
Rezultati pokazuju da su dobijene stabilne kristalne alumosilikatne
strukture polucita (CsAlSi2O6) i faze CAS (CsAlSi5O12) koje mogu
biti matrice za imobilizaciju Cs jona...
Advisors/Committee Members: Dondur, Vera, 1948-.
Subjects/Keywords: ion exchange; Na/Cs-LTA; Cs-clinoptilolite; phase
transformation; sintering; hot pressing; pollucite; CAS
phase
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Omerašević, Mia, 1. (2017). Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:16805/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 (16th Edition):
Omerašević, Mia, 1983-. “Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma.” 2017. Thesis, Univerzitet u Beogradu. Accessed January 25, 2021.
https://fedorabg.bg.ac.rs/fedora/get/o:16805/bdef:Content/get.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Omerašević, Mia, 1983-. “Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma.” 2017. Web. 25 Jan 2021.
Vancouver:
Omerašević, Mia 1. Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma. [Internet] [Thesis]. Univerzitet u Beogradu; 2017. [cited 2021 Jan 25].
Available from: https://fedorabg.bg.ac.rs/fedora/get/o:16805/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:
Omerašević, Mia 1. Primena faznih transformacija cezijum-izmenjenih zeolita
za dobijanje stabilnih cezijum-aluminosilikatnih kristalnih
struktura, CsAISi5O12 i CsAISi2O6 - potencijalnih matrica za
imobilizaciju jona cezijuma. [Thesis]. Univerzitet u Beogradu; 2017. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:16805/bdef:Content/get
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Wolverhampton
25.
Appasamy, Danen.
Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands.
Degree: PhD, 2011, University of Wolverhampton
URL: http://hdl.handle.net/2436/230851
► Potentially harmful elements (PHEs) have been researched in a wide variety of disciplines, including pedology, chemistry, pollution science and medicine. Within the scientific community, emphasis…
(more)
▼ Potentially harmful elements (PHEs) have been researched in a wide variety of disciplines, including pedology, chemistry, pollution science and medicine. Within the scientific community, emphasis has usually been placed on the toxic elements, such as cadmium, chromium, lead and arsenic, but rarely has there been consideration of interactions between PHEs, the sediment matrix and processes occurring in the sediments. Dredging of canals is needed for navigability purposes and consequently testing of dredged sediments (to assess whether sediments are hazardous) and landfilling can be costly for British Waterways facing constantly changing regulations and reduction in government grants. PHE mobility and availability in canal sediments can be affected by oxygen availability, pH and Redox. Remediation is thus becoming a priority for British Waterways to limit their operational costs. Zeolites, a type of remediation tool, have been widely studied in the past 30 years due to their attractive properties, such as molecular-sieving, high cation exchange capacities and their affinity for PHEs. The pilot study to investigate the efficiency of the clinoptilolite showed that there was a concentration difference between PHEs adsorbed by the clinoptilolite and the PHE concentration lost from the sediments from three sites in the West Midlands. Thorough characterisation of the sediments was needed to understand the speciation of the PHEs and the secondary processes occurring in the sediments. The different components of the sediments were analysed using various analytical methods, such as X-Ray Fluorescence spectroscopy (XRF), particle size and X-ray Diffraction (XRD) for the solid-inorganic phase, Ion Chromatography (IC) and Inductively Coupled Plasma-Optical Emissions Spectroscopy (ICP-OES) for the liquid phase (pore water), Gas Chromatography-Mass Spectrometry (GC-MS) and organic loss on ignition for the organic phase, pH and Redox for the electrochemistry of the sediments and Scanning Electron Microscope with Energy Dispersive X-Ray analysis (SEM-EDX) for microscopy and imaging. The British Geological Survey (BGS) sequential extraction method was used to investigate the different phases in the sediments. pH remained near neutral for all three sites and Redox remained anoxic. Organic contents for all three sites were around 30% and contained most of the polycyclic aromatic hydrocarbons considered hazardous. Pore water showed only high concentrations of sulphates but low concentrations of PHEs, suggesting PHEs were not mobile. Sequential extraction confirmed the other results showing that PHEs were mainly associated with stable phases, such as iron and manganese oxides or sulphides. The results have been taken into consideration to design a new remediation strategy to maximise efficiency of the zeolite.
Subjects/Keywords: 627.122; canal : sediments : heavy metals : zeolites : remediation : characterisation : clinoptilolite : sequential extraction : dredging
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Appasamy, D. (2011). Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands. (Doctoral Dissertation). University of Wolverhampton. Retrieved from http://hdl.handle.net/2436/230851
Chicago Manual of Style (16th Edition):
Appasamy, Danen. “Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands.” 2011. Doctoral Dissertation, University of Wolverhampton. Accessed January 25, 2021.
http://hdl.handle.net/2436/230851.
MLA Handbook (7th Edition):
Appasamy, Danen. “Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands.” 2011. Web. 25 Jan 2021.
Vancouver:
Appasamy D. Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands. [Internet] [Doctoral dissertation]. University of Wolverhampton; 2011. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/2436/230851.
Council of Science Editors:
Appasamy D. Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands. [Doctoral Dissertation]. University of Wolverhampton; 2011. Available from: http://hdl.handle.net/2436/230851

University of South Florida
26.
Zhang, Yan.
Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine.
Degree: 2018, University of South Florida
URL: https://scholarcommons.usf.edu/etd/7657
► Urine comprises around 1% of domestic sewage volume but holds 80% of total nitrogen. Source separation is a sustainable way to wastewater management than traditional…
(more)
▼ Urine comprises around 1% of domestic sewage volume but holds 80% of total nitrogen. Source separation is a sustainable way to wastewater management than traditional way due to low energy cost and preventing certain pollutants into wastewater treatment plants. Currently, removing and recovering nitrogen from source-separated urine has attracted more and more interests. Of them, ion exchange was used for removal and recovery of nitrogen in the form of ammonia from synthetic urine for potential application as a fertilizer in agriculture. No previous research studies were conducted to investigate the removal and recovery of nitrogen from hydrolyzed urine by ion exchange using POPs (porous organic polymers). So this study focused on evaluating the performance of POPs and comparing with clinoptilolite in synthetic hydrolyzed urine in terms of adsorption capacity (isotherm), adsorption rate (kinetics), regeneration rate, and cost. The ammonium removal from hydrolyzed urine using POPs was rapid with a high capacity of 68.03 mg/g than clinoptilolite (15.36 mg/g), and the regeneration efficiency of clinoptilolite and POPs can achieve 91% and 95.3%, respectively based single time use result. Although POPs had the better performance at one time use and multiple times use, it also had high materials cost. Additionally, the capacity of POP was estimated using the integrated ion exchange regeneration process model as 30.24 mg/g and 28.65 mg/g on cycle 10 and cycle 24, respectively. The regeneration efficiency of POPs was predicated as 45.4% and 38.4% in cycle 10 and cycle 24, respectively. The predicted capacity decreased with the number of cycles, but remained at about 55% of virgin POPs after 24 cycles, indicating POPs can maintain good performance after multiple reuses than clinoptilolite.
Subjects/Keywords: Urine source separation; Nutrient treatment; Ion exchange; Polymers material; Clinoptilolite; Environmental Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhang, Y. (2018). Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/7657
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhang, Yan. “Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine.” 2018. Thesis, University of South Florida. Accessed January 25, 2021.
https://scholarcommons.usf.edu/etd/7657.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhang, Yan. “Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine.” 2018. Web. 25 Jan 2021.
Vancouver:
Zhang Y. Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine. [Internet] [Thesis]. University of South Florida; 2018. [cited 2021 Jan 25].
Available from: https://scholarcommons.usf.edu/etd/7657.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhang Y. Comparison of Functional Porous Organic Polymers (POPs) and Natural Material Zeolite for Nitrogen Removal and Recovery from Synthetic Urine. [Thesis]. University of South Florida; 2018. Available from: https://scholarcommons.usf.edu/etd/7657
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Texas – Austin
27.
Burris, Lisa Elanna.
Increasing the reactivity of natural zeolites used as supplementary cementitious materials.
Degree: PhD, Civil Engineering, 2014, University of Texas – Austin
URL: http://hdl.handle.net/2152/25935
► This work examined the effects of thermal and chemical treatments on zeolite reactivity and determined the zeolite properties governing the development of compressive strengths and…
(more)
▼ This work examined the effects of thermal and chemical treatments on zeolite reactivity and determined the zeolite properties governing the development of compressive strengths and pozzolanic reactivity. Zeolites are naturally occurring aluminosilicate minerals found abundantly around the world. Incorporation of zeolites in cement mixtures has been shown by past research to increase concrete’s compressive strength and durability. In addition, use of zeolites as SCMs can decrease the environmental impact and energy demands associated with cement production for reinforced concrete structures. Further, in contrast to man-made SCMs such as fly ash, zeolite minerals provide a reliable and readily available SCM source, not affected by the production limits and regulations of unrelated industries such as the coal power industry. In this work, six sources of naturally occurring
clinoptilolite zeolite were examined. The zeolites were first characterized using x-ray fluorescence, quantitative xray diffraction, thermal analysis, particle size analysis, pore size distribution and surface area analysis, and scanning electron microscopy. Cation exchange capacity was also tested for one of the zeolites. Following comprehensive material characterization, the six pozzolanic reactivity of the natural zeolites was determined by measuring the quantity of calcium hydroxide in paste after 28 or 90 days, by measuring calcium hydroxide consumption of the zeolite in solution and by tracking the development of strengths of zeolite-cement mortars. Pretreatments that attempted to increase the reactivity of the zeolites, including calcination, acid treatment, milling and cation exchange, were then tested and evaluated using the same methods of material characterization and testing mentioned previously. Last, the results of the reactivity testing were reanalyzed to determine which properties of natural zeolites, including particle size, nitrogen-available surface area, and composition, govern the development of compressive strengths, pozzolanic reactivity and improved cement hydration parameters of pastes and mortars using natural zeolites as SCMs. Pretreatment testing showed that milling and acid treatment successfully increased the reactivity of zeolites used as SCMs. Additionally, particle size was shown to be the dominant property in determining the development of compressive strengths while particle size and surface area of the zeolites contributed to zeolite pozzolanic reactivity.
Advisors/Committee Members: Juenger, Maria C. G. (advisor).
Subjects/Keywords: Natural zeolite; Clinoptilolite; Reactivity; Supplementary cementitious materials; Concrete; Calcination; Acid; Milling; Cation exchange
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Burris, L. E. (2014). Increasing the reactivity of natural zeolites used as supplementary cementitious materials. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/25935
Chicago Manual of Style (16th Edition):
Burris, Lisa Elanna. “Increasing the reactivity of natural zeolites used as supplementary cementitious materials.” 2014. Doctoral Dissertation, University of Texas – Austin. Accessed January 25, 2021.
http://hdl.handle.net/2152/25935.
MLA Handbook (7th Edition):
Burris, Lisa Elanna. “Increasing the reactivity of natural zeolites used as supplementary cementitious materials.” 2014. Web. 25 Jan 2021.
Vancouver:
Burris LE. Increasing the reactivity of natural zeolites used as supplementary cementitious materials. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2014. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/2152/25935.
Council of Science Editors:
Burris LE. Increasing the reactivity of natural zeolites used as supplementary cementitious materials. [Doctoral Dissertation]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/25935

University of Manchester
28.
Herbas, Melodie Noelle marielle.
Ion Exchange to cope with decommissioning.
Degree: 2018, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316871
► This PhD project studied the caesium and strontium removal capacities of six nanoporous materials. Indeed, it was linked in with the SIXEP plant present at…
(more)
▼ This PhD project studied the caesium and strontium
removal capacities of six nanoporous materials. Indeed, it was
linked in with the SIXEP plant present at Sellafield site, UK,
which is currently using natural
clinoptilolite, originally mined
from the Mojave Desert, to remove radioactive caesium and strontium
ions from wastewater effluents. At the moment the feeds entering
the SIXEP plant correspond to the best working conditions for
clinoptilolite. As the feeds are moving toward more acidic pH and
complex solutions and as
clinoptilolite works at neutral pH, new
nanoporous materials are required. This project had been divided
into sub-projects, which all had the same purpose of finding the
best material for caesium and strontium removal under complex
solutions. The first part of the PhD focused on the synthesis of
CST, SNT, ETS-4 and ETS-10 materials following literature reviews.
The two last materials studied were provided by Fortum Power and
Heat Oy for CsTreat material and by Sellafield Ltd for
clinoptilolite material. The second part of the PhD consisted in
studying the exchange capacities for caesium and strontium ions for
each material studied under batch conditions using several water
compositions relevant to Sellafield Ltd. Each water composition had
different competing ions or pH and were used to classify the
materials between them. From that it was found that
Clinoptilolite
stays the best materials for caesium and strontium removal. The
third part of the project was the gamma irradiation of the
materials. This irradiation had an aim to check the stability of
the structure of the studied materials under gamma irradiation. The
materials were exposed to four different gamma doses which were
0.5; 1; 3 and 6 MGy, the last one corresponding to the maximum dose
were structural changes could happen. This revealed that all the
materials, except ETS-4 material, were stable under gamma
irradiation and that no structural changes were observable. The
fourth part of the project was an extension of the third part in
which the materials were Cs exchanged before being gamma irradiated
to a dose of 6 MGy. This showed that the caesium exchange process
is not affected by radiation. Finally, the unexchanged materials
were alpha irradiated using a 15 MeV He2+ beam at the Dalton
Cumbria Facility. Two irradiations were performed on CsTreat, CST,
ETS-4, ETS-10 and
clinoptilolite material. It was found that all
the materials were damaged by alpha irradiation and displayed
amorphous framework To resume, it appeared that
clinoptilolite
still stays one of the best materials for the removal of caesium
and strontium ions in a wide range of wastewater composition.
Additionally, it was discovered that ETS-10 material could be a
good alternative to
clinoptilolite material as its structure is
stable under gamma irradiation and it displayed good exchange
capacities when competing ions were present in the feeds. CST could
also be a substitute as it shows good ion exchange properties under
a broad range of pH. SNT material was great for…
Advisors/Committee Members: ANDERSON, MIKE MW, Attfield, Martin, Anderson, Mike.
Subjects/Keywords: ion exchange; clinoptilolite; CST; SNT; ETS-10; ETS-4; CsTreat; radioactive effluent; 137 Cs; 90 Sr; alpha irradiation; gamma irradiation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Herbas, M. N. m. (2018). Ion Exchange to cope with decommissioning. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316871
Chicago Manual of Style (16th Edition):
Herbas, Melodie Noelle marielle. “Ion Exchange to cope with decommissioning.” 2018. Doctoral Dissertation, University of Manchester. Accessed January 25, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316871.
MLA Handbook (7th Edition):
Herbas, Melodie Noelle marielle. “Ion Exchange to cope with decommissioning.” 2018. Web. 25 Jan 2021.
Vancouver:
Herbas MNm. Ion Exchange to cope with decommissioning. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Jan 25].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316871.
Council of Science Editors:
Herbas MNm. Ion Exchange to cope with decommissioning. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:316871

Universidade Federal de Santa Maria
29.
Roberto Marinho Maciel.
PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL.
Degree: 2006, Universidade Federal de Santa Maria
URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=237
► Aflatoxinas são metabólitos de fungos, que podem causar danos à saúde do animal, resultando em redução da produção e afetando à indústria avícola, pela diminuição…
(more)
▼ Aflatoxinas são metabólitos de fungos, que podem causar danos à saúde do animal, resultando em redução da produção e afetando à indústria avícola, pela diminuição da taxa de crescimento e péssima conversão alimentar. O objetivo do presente trabalho foi avaliar o perfil eletroforético das proteínas séricas de frangos de corte alimentados com dietas contendo aflatoxinas e/ou argila clinoptilolita natural. Foram utilizados 528 frangos de corte, machos, da linhagem Ross, distribuídos em 6 tratamentos com 4 repetições cada: T1 testemunha (ração sem aflatoxinas ou clinoptilolita), T2 ração com 5ppm de aflatoxinas, T3 ração com 0,25% de clinoptilolita, T4 ração com 5ppm de aflatoxinas e 0,25% de clinoptilolita, T5 ração com 0,5% de clinoptilolita e T6 ração com 5ppm de aflatoxinas e 0,5% de clinoptilolita. Os animais ficaram alojados em 24 boxes, e submetidos aos tratamentos do 1 ao 42 dia, quando foram sacrificados. Foram analisadas as proteínas totais, as frações albumina, alfa 1, alfa 2, beta e gama. Com exceção das médias da fração gama, o teste de Tukey revelou diferenças significativas (P<0,05) nas médias de todas as proteínas totais e frações protéicas nos tratamentos onde as aflatoxinas estavam presentes. A ação das aflatoxinas nas proteínas totais ocorre na síntese de albumina e globulinas (frações alfa e beta). As gamaglobulinas não são afetadas pelas aflatoxinas. Em relação ao controle, as aves alimentadas com dietas com aflatoxinas e clinoptilolita apresentaram baixos (P<0,05) níveis de proteína total, albumina e globulinas (alfa e beta). Conclui-se que as aflatoxinas alteram o perfil eletroforético e a clinoptilolita adicionada na ração, não é capaz de evitar essa alteração
Aflatoxins are metabolites from fungi, that may be injurious to animal health, resulting in reduced production and affecting poultry industry by decrease the growth rate and worsening feed conversion. A study was carried out to evaluate the electrophoresis profile of serum protein in broilers fed with diets containing aflatoxins and natural clinoptilolite clay. A total of 528 male broilers Ross were used, distributed in 6 treatments with 4 replications each: T1 control (without aflatoxins or clinoptilolite), T2 5ppm of aflatoxins, T3 0.25% of clinoptilolite, T4 5ppm of aflatoxins and 0.25% of clinoptilolite, T5 0.5% of clinoptilolite and T6 5ppm of aflatoxins and 0.5% of clinoptilolite. The broilers were placed in 24 boxes and submitted to treatments from 1 to 42 days, when they were slaughtered. Were analyzed the total proteins, albumin fractions, alpha 1, alpha 2, beta and gamma. The aflatoxins decreased (P<0.05) total protein, albumin, and globulins (alpha and beta fractions). However, no effect (P<0.05) of aflatoxins was observed about gamma fraction. The clinoptilolite no modify (P<0.05) the serum proteins. Related to control, broilers fed with diets containing aflatoxins and clinoptilolite presented low (P<0.05) levels of total protein, albumin, and globulins (alpha and beta fractions). In conclusion, aflatoxins change the…
Advisors/Committee Members: Sonia Teresinha dos Anjos Lopes, Janio Morais Santurio, Claudete Schmidt.
Subjects/Keywords: MEDICINA VETERINARIA; proteínas séricas; clinoptilolita; aflatoxinas; frangos de corte; perfil eletroforético; clinoptilolite; aflatoxin; broiler; electrophoresis profile
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Maciel, R. M. (2006). PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Maciel, Roberto Marinho. “PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL.” 2006. Thesis, Universidade Federal de Santa Maria. Accessed January 25, 2021.
http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Maciel, Roberto Marinho. “PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL.” 2006. Web. 25 Jan 2021.
Vancouver:
Maciel RM. PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2006. [cited 2021 Jan 25].
Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Maciel RM. PERFIL ELETROFORÉTICO DAS PROTEÍNAS SÉRICAS DE FRANGOS DE CORTE ALIMENTADOS COM DIETAS CONTENDO AFLATOXINAS E/OU ARGILA CLINOPTILOLITA NATURAL. [Thesis]. Universidade Federal de Santa Maria; 2006. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Newcastle
30.
Abu Zaher, Hana.
Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials.
Degree: PhD, 2015, University of Newcastle
URL: http://hdl.handle.net/1959.13/1296463
► Research Doctorate - Doctor of Philosophy (PhD)
Contamination of groundwater with fluoride has received worldwide attention due to its associated health problems with the prolonged…
(more)
▼ Research Doctorate - Doctor of Philosophy (PhD)
Contamination of groundwater with fluoride has received worldwide attention due to its associated health problems with the prolonged intake of elevated fluoride concentration above 1.5 mg/L. This thesis dealt with the remediation of highly contaminated groundwater with the spent potliner leachate (SPLL) which is characterized by high concentration of fluoride among a cocktail of other chemicals (anions, cations, heavy metals and organics). The viability of natural calcite (limestone) and natural zeolite (clinoptilolite) for fluoride removal associated with SPLL was tested. The purpose was to find the optimal mixture of calcite and zeolite that will maximise fluoride removal and stop/or minimise the inhibitory effect of SPLL chemicals on calcite capacity to remove fluoride. Four calcite-zeolite mixtures were used, that is calcite, zeolite, calcite-zeolite (50:50) and calcite-zeolite (70:30). The removal capacity of these mixtures in batch and column tests was not the same. For a long residence (contact) time (as in batch tests), more fluoride was removed by calcite-zeolite 50:50 and 70:30 mixtures than calcite or zeolite alone. That was true for both synthetic and SPLL solutions. In continuous column tests (where the contact between fluoride and sorbents is spatial and temporal), SPLL tests showed a prevalence of zeolite over calcite or its mixtures (calcite-zeolite 50:50 and 70:30). For synthetic fluoride solution, all columns containing zeolite showed nearly similar fluoride removal which was higher than that obtained using column containing calcite. Overall, in batch tests calcite showed better fluoride removal than zeolite while the inverse was true in column tests. That was attributed to the fact that zeolite has more surface area than calcite and moreover the removal mechanism of fluoride by calcite depends on the slow hydrolysis process. Hence calcite is more effective in batch tests setup where enough time is allowed for calcite dissolution. Fluoride removal by calcite and zeolite was depleted in SPLL by ~40-67% in 1.18 mm and ~12-46% in 150 µm fraction sizes as compared to synthetic fluoride solution. Heavy metals (lead, magnesium and manganese) and organics (3-methylphenol and 4-methylphenol) associated with fluoride in SPLL showed an interfering effect for fluoride removed by calcite. Other major heavy metals (vanadium, copper, barium and cobalt) and organics (aniline, phenol, 2-methyl phenol, 2-methylnaphthalene, acenaphthene, fluorene and carbazole) in SPLL solution have not shown any effect on calcite capacity to remove fluoride.
Advisors/Committee Members: University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering.
Subjects/Keywords: fluoride removal; spent potliner leachate; natural calcite (limestone); natural zeolite (clinoptilolite); batch tests; column tests; heavy metals; organics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abu Zaher, H. (2015). Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1296463
Chicago Manual of Style (16th Edition):
Abu Zaher, Hana. “Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials.” 2015. Doctoral Dissertation, University of Newcastle. Accessed January 25, 2021.
http://hdl.handle.net/1959.13/1296463.
MLA Handbook (7th Edition):
Abu Zaher, Hana. “Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials.” 2015. Web. 25 Jan 2021.
Vancouver:
Abu Zaher H. Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials. [Internet] [Doctoral dissertation]. University of Newcastle; 2015. [cited 2021 Jan 25].
Available from: http://hdl.handle.net/1959.13/1296463.
Council of Science Editors:
Abu Zaher H. Removal of fluoride from spent potliner contaminated groundwater using reactive geomaterials. [Doctoral Dissertation]. University of Newcastle; 2015. Available from: http://hdl.handle.net/1959.13/1296463
◁ [1] [2] [3] ▶
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