+publisher:"University of Florida" +contributor:("Koopman, Ben L.")

University of Florida

1. Hirst, Amanda M. Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media.

Degree: MS, Soil and Water Science, 2015, University of Florida

URL: https://ufdc.ufl.edu/UFE0049723

► Onsite wastewater systems (OWS), commonly known as septic systems, are an important source of nitrogen (N) in Florida shallow groundwater. Our objective was to design… (more)

Subjects/Keywords: Ammonia; Biofiltration; Groundwater; Nitrates; Nitrogen; Oxygen; Sulfur; Wastewater; Wastewater treatment; Water quality; clay – clinoptilolite – denitrification – lignocellulosic – nitrification – nitrogen – onsite – passive – septic – sulfur – wastewater

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APA (6^th Edition):

Hirst, A. M. (2015). Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0049723

Chicago Manual of Style (16^th Edition):

Hirst, Amanda M. “Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media.” 2015. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0049723.

MLA Handbook (7^th Edition):

Hirst, Amanda M. “Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media.” 2015. Web. 23 Jan 2021.

Vancouver:

Hirst AM. Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media. [Internet] [Masters thesis]. University of Florida; 2015. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0049723.

Council of Science Editors:

Hirst AM. Reducing Nitrogen Loading from Onsite Wastewater Systems to Shallow Groundwater Design and Performance Evaluation of Two-Stage Biofiltration Media. [Masters Thesis]. University of Florida; 2015. Available from: https://ufdc.ufl.edu/UFE0049723

University of Florida

2. Wally, James R. Life Cycle Assessment for Landfill Leachate Production and Treatment.

Degree: M.E., Environmental Engineering Sciences, 2014, University of Florida

URL: https://ufdc.ufl.edu/UFE0047593

► Life cycle assessment is a framework for decision making based on environmental impacts, rather than economic impacts. The ecoinvent database is a database containing information… (more)

Subjects/Keywords: Alkalinity; Ammonia; Conductivity; Constructed wetlands; Databases; Landfills; Linear regression; Nitrogen; Wastewater treatment; Wetlands; ammonia – landfill – lca – lcia – leachate – membrane – sbr – treatment – wastewater – wetland

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APA (6^th Edition):

Wally, J. R. (2014). Life Cycle Assessment for Landfill Leachate Production and Treatment. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0047593

Chicago Manual of Style (16^th Edition):

Wally, James R. “Life Cycle Assessment for Landfill Leachate Production and Treatment.” 2014. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0047593.

MLA Handbook (7^th Edition):

Wally, James R. “Life Cycle Assessment for Landfill Leachate Production and Treatment.” 2014. Web. 23 Jan 2021.

Vancouver:

Wally JR. Life Cycle Assessment for Landfill Leachate Production and Treatment. [Internet] [Masters thesis]. University of Florida; 2014. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0047593.

Council of Science Editors:

Wally JR. Life Cycle Assessment for Landfill Leachate Production and Treatment. [Masters Thesis]. University of Florida; 2014. Available from: https://ufdc.ufl.edu/UFE0047593

University of Florida

3. Pazmino, Marco Antonio. Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production.

Degree: MS, Agricultural and Biological Engineering, 2014, University of Florida

URL: https://ufdc.ufl.edu/UFE0046828

► Tropical and sub-tropical countries in Latin America, Caribbean and Asia grow bananas in large quantities. Ecuador is the world's largest exporter of bananas, producing 7.4… (more)

Subjects/Keywords: Anaerobic digestion; Bananas; Biogas; Ethanol; Fermentation; Juices; Methane; Peduncle; Raw materials; Sugars; banana – bioethanol – biofuel – biogas – fermentation

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APA (6^th Edition):

Pazmino, M. A. (2014). Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0046828

Chicago Manual of Style (16^th Edition):

Pazmino, Marco Antonio. “Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production.” 2014. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0046828.

MLA Handbook (7^th Edition):

Pazmino, Marco Antonio. “Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production.” 2014. Web. 23 Jan 2021.

Vancouver:

Pazmino MA. Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production. [Internet] [Masters thesis]. University of Florida; 2014. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0046828.

Council of Science Editors:

Pazmino MA. Use of Banana Peduncle as Feedstock for Ethanol and Biogas Production. [Masters Thesis]. University of Florida; 2014. Available from: https://ufdc.ufl.edu/UFE0046828

University of Florida

4. Zhong, Min. Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere.

Degree: PhD, Environmental Engineering Sciences, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0045830

► Atmospheric aerosols play an import role in climatechange through direct interaction with sunlight. Organic carbon (OC) aerosol, which absorbs ultravioletand short visible wavelength sunlight, is… (more)

▼ Atmospheric aerosols play an import role in climatechange through direct interaction with sunlight. Organic carbon (OC) aerosol, which absorbs ultravioletand short visible wavelength sunlight, is one of the least understood factors inclimate change. To quantify the climateeffect of organic aerosol, the first step is to obtain its fundamental opticalparameters. This study explored asolvent-free method to measure the mass absorption cross-section (MAC) of OC, and applied this method toboth secondary organic aerosol (SOA) and primary organic aerosol (POA). SOA was produced through photooxidation of differentprecursor hydrocarbons such as toluene, d-limonene,and a-pinene using a 2 m3indoor Teflon film chamber. Of thesethree precursor hydrocarbons, the MACvalue of toluene SOA was the highest compared with MAC of d-limonene and a-pinene SOA. To understand how the composition of SOAaffects its MAC, a new model topredict the UV-visible absorption spectrum of SOA was developed. The model predicted that, with higher level ofNOx, absorption of toluene SOA would be higher due to the formationof more nitrocatechols. This method wasalso used to measure MAC of POA. Wood burning OC produced under smoldering conditionswere photochemically aged using a 104 m3 dual outdoor chamber undernatural sunlight. Overall, the massabsorption cross-section of OC increased by 11-54% in the morning and thengradually decreased by 19-68% in the afternoon. A similar trend in the change of light absorption was observed inambient smoke aerosol originating from the 2012 County Line Wildfire inFlorida. To quantify the climate forcingof OC, a simple forcing efficiency was used to provide a first estimate of theclimate impact of SOA and POA. Ourresults suggest that SOA can be treated as cooling aerosol with negative climateforcing similar to inorganic sulfates. POA has the potential to release heat to atmosphere with positiveforcing in the UV range. ( en ) Advisors/Committee Members: Jang, Myoseon (committee chair), Omenetto, Nicolo (committee member), Koopman, Ben L (committee member), Henderson, Barron H (committee member), Curtis, Jennifer S (committee member).

Subjects/Keywords: Absorption spectra; Aerosols; Atmospherics; Carbon; Electromagnetic absorption; Light; Modeling; Oxidation; Visible spectrum; Wavelengths; absorption – aerosol – ambient – chamber – mac – modeling – uv-visible

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APA (6^th Edition):

Zhong, M. (2013). Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045830

Chicago Manual of Style (16^th Edition):

Zhong, Min. “Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere.” 2013. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0045830.

MLA Handbook (7^th Edition):

Zhong, Min. “Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere.” 2013. Web. 23 Jan 2021.

Vancouver:

Zhong M. Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0045830.

Council of Science Editors:

Zhong M. Uv-Visible Light Absorption Properties of Organic Carbon Aerosol in Atmosphere. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045830

University of Florida

5. Dube, Patrick J. Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation.

Degree: PhD, Agricultural and Biological Engineering, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0046242

► The goal of this research was to develop a system for the releaseof sugars from sugar beet pulp for use in ethanol production. By designing… (more)

▼ The goal of this research was to develop a system for the releaseof sugars from sugar beet pulp for use in ethanol production. By designing a system capable of efficientlyreleasing sugars from a waste stream such as sugar beet pulp, the cost ofethanol can be lowered and a reality with a cheap, widely available biofuel cancome closer to fruition. The first step was to determine the time and temperatureneeded to achieve the highest sugar yields from hydrothermolysis pretreatmentfollowed by the optimization of enzymatic saccharification using commercialenzymes. The optimal time andtemperature for hydrothermolysis pretreatment of sugar beet pulp was 160°C for120 minutes (47.52% of sugars on a dry weight basis were detected). Saccharification using commercial enzymes wasfound to be most effective when loading undiluted pectinase (72.98%saccharification) with pectinase and hemicellulase added in equal amounts andincubating for one hour, closely behind (72.88%). Increasing incubation times was also testedwith the pectinase and hemicellulase mixture and it was found that 86.77% totalsaccharification was possible when incubated for 24 hours. Following optimization using commercial enzymes, theeffect of extracted enzymes from mesophilic and thermophilic mixed culturefermentors was tested and compared to commercial enzymes. Extraction of enzymes for use insaccharification found enzymatic activity of pectinase, hemicellulase andcellulase. Reported activities werehigher in cell free samples versus biofilm and at thermophilic temperaturesversus mesophilic. Increasing theloading rate of sugar beet pulp from 100 g to 250 g resulted in the highestreported enzymatic activities (60.71 µmol/mL/hr for hemicellulase and 50.57 µmol/mL/hrfor pectinase). Using thermophilic cell free extracted enzymes to saccharifypretreated sugar beet pulp, saccharification was found to be 53.12%, anincrease of 17.13% after hydrothermolysis. The effect ofcommercial enzymes on the overall methane yield in a two stage anaerobicdigester was also tested. Gas yieldswere overall higher when thermophilic temperatures were used, peaking at 197.52L CH4/kg VS with 95% of the gas being made in 27.5 days. The addition of cellulase commercial enzymeswas not found to increase the overall yield of methane gas. ( en ) Advisors/Committee Members: PULLAMMANAPPALLIL,P C (committee chair), SVORONOS,SPYROS A (committee member), PRESTON,JAMES F,III (committee member), KOOPMAN,BEN L (committee member).

Subjects/Keywords: Anaerobic digestion; Enzymes; Hydrolysis; Incubation; Methane; Pretreatment; Raw materials; Saccharification; Sugar beets; Table sugars; anaerobic – beet – biofuel – biological – cellulase – digestion – enzyme – extraction – hemicellulase – methane – pectinase – pulp – saccharification – sugar

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APA (6^th Edition):

Dube, P. J. (2013). Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0046242

Chicago Manual of Style (16^th Edition):

Dube, Patrick J. “Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation.” 2013. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0046242.

MLA Handbook (7^th Edition):

Dube, Patrick J. “Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation.” 2013. Web. 23 Jan 2021.

Vancouver:

Dube PJ. Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0046242.

Council of Science Editors:

Dube PJ. Optimization of the Saccharification of Spent Sugar Beet Pulp Using Extracellular Enzymes from Mixed Culture Anaerobic Fermentation. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0046242

University of Florida

6. Garofalo, Giuseppina. Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings.

Degree: PhD, Environmental Engineering Sciences, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044508

► Unit operations (UOs) are used to manage the fate of urban rainfall-runoff particulate matter (PM) and compounds in runoff that partition to and from PM.… (more)

▼ Unit operations (UOs) are used to manage the fate of urban rainfall-runoff particulate matter (PM) and compounds in runoff that partition to and from PM. For UOs subject to runoff loadings, computational fluid dynamics (CFD) is emerging as a design and analysis tool, albeit utilization has been primarily for time-independent flows. In contrast to the common use of steady CFD models there are few transient validated models of UOs. This dissertation aims to investigate the transient hydraulic and PM response of common runoff UOs. Utilizing a baffled hydrodynamic separator (BHS) the potential of CFD model to predict PM elution as a function of hydrograph unsteadiness is investigated. The role of mesh size (MS), time step (TS) and discretization number (DN) of particle size distribution (PSD) to simulate PM elution is examined. The impact of baffle configuration, flow rate, and hydrograph unsteadiness on hydraulic response of a rectangular clarifier (RC) is quantified through Morrill index (MI), volumetric efficiency (VE) and N-tanks-in-series (N) metrics. A stepwise steady flow CFD model is proposed and tested for transient events to predict PM separation with reduced computational overhead. The stepwise steady approach models response of a BHS and a RC to a hydrograph. The stepwise steady CFD flow model is extended to evaluate PM fate (separation and washout) in a RC and a screened HS (SHS) on annual basis. Results for BHS demonstrate MS, TS and DN significantly impact prediction of PM elution, PSDs and computational effort as influenced by the unsteadiness level. For a RC with no baffles, VE and N increase while MI decreases with flow rate. For a RC with baffles MI and N are functions of unsteadiness level and number of baffles. The stepwise steady CFD model produces effluent PM results in good agreement with measured physical model data at a significantly reduced time compared to unsteady CFD models. The coupling of a stepwise-steady CFD approach and time domain continuous simulation represents a valuable tool to estimate PM fate on annual basis. Results provide a macroscopic evaluation for finding the optimal control strategy and defining maintenance requirements to improve UO treatment. ( en ) Advisors/Committee Members: Sansalone, John (committee chair), Heaney, James (committee member), Koopman, Ben L (committee member), Curtis, Jennifer S (committee member).

Subjects/Keywords: Charge flow devices; Flow velocity; Hydraulics; Hydrological modeling; Modeling; Rain; Scale modeling; Simulations; Steady flows; Stormwater; City of Gainesville ( local )

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APA (6^th Edition):

Garofalo, G. (2012). Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044508

Chicago Manual of Style (16^th Edition):

Garofalo, Giuseppina. “Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings.” 2012. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0044508.

MLA Handbook (7^th Edition):

Garofalo, Giuseppina. “Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings.” 2012. Web. 23 Jan 2021.

Vancouver:

Garofalo G. Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0044508.

Council of Science Editors:

Garofalo G. Physical and computational fluid dynamics modeling of unit operations under transient hydraulic loadings. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044508

University of Florida

7. Woo, Myung Heui. Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols.

Degree: PhD, Environmental Engineering Sciences, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044116

► Although respirators and filters are designed to prevent the spread of pathogenic aerosols, a stockpile shortage is anticipated during the next flu pandemic. Contact transfer… (more)

Subjects/Keywords: Aerosols; Decontamination; Irradiation; Microwaves; Mucins; Pressure reduction; Relative humidity; Respirators; Viruses; Water use efficiency; bioaerosol – charaterization – decontamination – inactivation – ms2 – survivability

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APA (6^th Edition):

Woo, M. H. (2012). Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044116

Chicago Manual of Style (16^th Edition):

Woo, Myung Heui. “Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols.” 2012. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0044116.

MLA Handbook (7^th Edition):

Woo, Myung Heui. “Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols.” 2012. Web. 23 Jan 2021.

Vancouver:

Woo MH. Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0044116.

Council of Science Editors:

Woo MH. Improving Protection against Viral Aerosols through Development of Novel Decontamination Methods and Characterization of Viral Aerosols. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044116

University of Florida

8. Jenkins, Charles M. Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.

Degree: PhD, Environmental Engineering Sciences, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044343

► A high speed framing camera (HSFC) and a particle image velocimetry (PIV) instrument were used to determine the properties of explosively driven particle fields in… (more)

▼ A high speed framing camera (HSFC) and a particle image velocimetry (PIV) instrument were used to determine the properties of explosively driven particle fields in microsecond and millisecond intervals. Two-inch long right circular cylindrical charges with half-inch diameter cores made of organic explosive were used as the driving explosive. The core was surrounded by a particle bed of aluminum or tungsten powder of a specific particle size distribution. Position data from the leading edge of the particle fronts for each charge were recorded with the framing camera at early time, first 125 µs, and with a PIV instrument at later time (5.7 ms) to determine the mean particle velocities. In addition, using a PIV image, a velocity gradient along the length of the particle field was established by using the mean particle velocity value determined from three separate horizontal bands that transverse the particle field. The results showed lower velocity particles at the beginning of the particle field closest to the source and higher velocity particles at the leading front portion of the field. Differences in particle dispersal, luminescence, and agglomeration were seen when changes in the initial particle size and material type were made. The aluminum powders showed extensive luminescence with agglomeration, forming large particle structures while a tungsten powder showed little luminescence, agglomeration and no particle structures. Combining velocity data from the HSFC and PIV, the average drag coefficient for each powder type was determined. The particle field velocities and drag coefficients at one meter showed good agreement with the numerical data produced from a computational fluid dynamics code. The dissolution rate of aluminum powder in serum ultrafiltrate stimulant solution was conducted. A match to the International Commission on Radiological Protection, ICRP 66 lung model default value for the overall instantaneous clearance rate was determined. Using a ratio of volume moments derived from the sample powder system, a correction to the experimental dissolution rate constant was made to fit a mono distributed powder system that will allow the constant to be applied to other powder systems with different particle size distributions. ( en ) Advisors/Committee Members: Wu, Chang-Yu (committee chair), Koopman, Ben L (committee member), Roberts, Stephen M (committee member), Bolch, Wesley E (committee member), Powers, Kevin W (committee member), Cheng, Meng-Dawn (committee member).

Subjects/Keywords: Aluminum; Detonation; Explosives; Metal particles; Particle density; Particle interactions; Particle mass; Shock waves; Simulations; Velocity; dissolution – flow – multiphase – piv

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APA (6^th Edition):

Jenkins, C. M. (2012). Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044343

Chicago Manual of Style (16^th Edition):

Jenkins, Charles M. “Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.” 2012. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0044343.

MLA Handbook (7^th Edition):

Jenkins, Charles M. “Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards.” 2012. Web. 23 Jan 2021.

Vancouver:

Jenkins CM. Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. [Internet] [Doctoral dissertation]. University of Florida; 2012. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0044343.

Council of Science Editors:

Jenkins CM. Properties of Explosively Driven Aluminum Particle Fields and Their Inhalation Hazards. [Doctoral Dissertation]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044343

9. Laudenslager, Michael J. Electric Field Enhancement of Photocatalysis.

Degree: PhD, Materials Science and Engineering, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0045258

► Photocatalysts are semiconductor materials that utilizelight to improve the rate of chemical reactions. These materials are primarilyused to degrade toxic compounds in aqueous systems. The… (more)

▼ Photocatalysts are semiconductor materials that utilizelight to improve the rate of chemical reactions. These materials are primarilyused to degrade toxic compounds in aqueous systems. The most photocatalyticallyactive of these materials are only able to absorb a small portion of the solarspectrum, limited to the UV range and have a low quantum efficiency. Therefore,finding methods that improve the photocatalytic activity of these materials isessential to applying them to practical systems. Previous research has shownthat application of an electric field through supported photocatalytic systemsincreases the reaction rate via improving charge carrier separation. Theinternal electrodes in these systems are limited by the electrolysis of waterat high voltages. To overcome this limitation, an alternate reaction setup wasdeveloped using an external electric field applied through air combined with adispersed nanoparticle system. The trend of reaction rate change with appliedelectric field strength is discussed in terms of the Poole-Frenkel behavior,which is predicted from photovoltage studies, while other potential influencesof the electric field are also discussed. This demonstrates that an improvementin reaction rate by as much as 120 % can be achieved in a P25 system. Theability of an electric field to influence a variety of photocatalytic systemsthat have different charge transport properties is examined in several systems,including rutile, CNT/TiO2,ZnO/TiO2, and SrTiO3 doped with 20 % La. This workdescribes the synthesis and characterization of the materials, as well as thechange in performance with electric field strength. In addition, thedevelopment of photocatalytic nanofibers via the electrospinning process isdiscussed for use as supported photocatalytic systems. However, a significantdeparture from the standard electrospinning regime was encountered when heavilydoped compounds are used leading to low density structures and complications tothe electrospinning process. The key parameters controlling this behavior werefound to be the solution conductivity and shape of the electric field. For aTiO2 sol-gel system, the low-density electrospun meshes began tooccur when the solution conductivity was increased with NaCl to 1270 µS/cm andabove. Methods to control and prevent this behavior are presented. ( en ) Advisors/Committee Members: Sigmund, Wolfgang Michael (committee chair), Dempere, Luisa Amelia (committee member), Xue, Jiangeng (committee member), Holloway, Paul H (committee member), Koopman, Ben L (committee member).

Subjects/Keywords: Anatase; Conductivity; Dyes; Electric field strength; Electric fields; Electrons; Physical chemistry; Polymers; Reaction kinetics; Surface areas; electrospinning – p25 – photocatalysis – tio2

…the Graduate School of the University of Florida in Partial Fulfillment of the Requirements…

10 more images…

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APA (6^th Edition):

Laudenslager, M. J. (2013). Electric Field Enhancement of Photocatalysis. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045258

Chicago Manual of Style (16^th Edition):

Laudenslager, Michael J. “Electric Field Enhancement of Photocatalysis.” 2013. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0045258.

MLA Handbook (7^th Edition):

Laudenslager, Michael J. “Electric Field Enhancement of Photocatalysis.” 2013. Web. 23 Jan 2021.

Vancouver:

Laudenslager MJ. Electric Field Enhancement of Photocatalysis. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0045258.

Council of Science Editors:

Laudenslager MJ. Electric Field Enhancement of Photocatalysis. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045258

University of Florida

10. Qi, Yixin. Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier.

Degree: MS, Environmental Engineering Sciences, 2018, University of Florida

URL: https://ufdc.ufl.edu/UFE0052277

Subjects/Keywords: boundary; cfd; pm; sediment

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APA (6^th Edition):

Qi, Y. (2018). Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0052277

Chicago Manual of Style (16^th Edition):

Qi, Yixin. “Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier.” 2018. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0052277.

MLA Handbook (7^th Edition):

Qi, Yixin. “Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier.” 2018. Web. 23 Jan 2021.

Vancouver:

Qi Y. Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier. [Internet] [Masters thesis]. University of Florida; 2018. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0052277.

Council of Science Editors:

Qi Y. Impact of Boundary Conditions for Simulation of Pm Fate in an Urban Drainage Clarifier. [Masters Thesis]. University of Florida; 2018. Available from: https://ufdc.ufl.edu/UFE0052277

University of Florida

11. YIN,JUN. Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus.

Degree: MS, Chemical Engineering, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0043068

► Paracoccus pantotrophus has two nitrate reductases: membrane bound nitrate reductase (Nar) and periplasmic nitrate reductase (Nap). The mutant KD102 (mutant from P. Pantotrophus, napEDABC::Km) does… (more)

Subjects/Keywords: Aerobic conditions; Anaerobic conditions; Bacteria; Cell growth; Cell walls; Dosage; Enzymes; Nitrates; Nitrogen; Oxygen; DIAUXIC – EFFECT – EXTRACT – KD102 – LAG – NITRATE – PANTOTROPHUS – PARACOCCUS – PROTEIN – REDUCTASE

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APA (6^th Edition):

YIN,JUN. (2011). Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043068

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

Chicago Manual of Style (16^th Edition):

YIN,JUN. “Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus.” 2011. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0043068.

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

MLA Handbook (7^th Edition):

YIN,JUN. “Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus.” 2011. Web. 23 Jan 2021.

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

Vancouver:

YIN,JUN. Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus. [Internet] [Masters thesis]. University of Florida; 2011. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0043068.

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

Council of Science Editors:

YIN,JUN. Effect of Protein Crude Extract on Oxic/Anoxic Diauxic Growth of a Nap-deficient Mutant of Paracoccus pantotrohpus. [Masters Thesis]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043068

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

University of Florida

12. Moreira, Cesar. Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste.

Degree: MS, Agricultural and Biological Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0025168

► Biodegradable plastic is now being used for packaging purposes to avoid the environmental burden of oil based polymers. However, after usage the biodegradable polymer waste… (more)

▼ Biodegradable plastic is now being used for packaging purposes to avoid the environmental burden of oil based polymers. However, after usage the biodegradable polymer waste when disposed takes longer to degrade than typical organic wastes. The same mechanical characteristics that make this plastic appealing to use make it undesirable in composting operations. Relatively high temperature industrial composting conditions are required to treat this waste. Most municipalities lack such facilities. Therefore, the majority of biopolymer wastes are sent to landfills, which is contrary to the purpose of using biodegradable polymers. Research has suggested pretreatment as a solution for accelerating degradation of biopolymers. Among proposed pretreatment, hydrolysis has been suggested as the most promising. In this research kinetics of hydrolysis of polylactic acid at temperatures above and below the melting point of the polymer, and mass loading of PLA during hydrolysis was studied to explore the extent of degradation of the material on reaction. In all cases studied, loss in mass and degradation of polymer was observed. It was most noticeable when 2.5 grams and 7.5 grams of sample was exposed for 120 minutes at 160 masculine ordinalC. At the end of the treatment no solids were present, and the molecular weight average (MW) reduced to 900 and 1217 respectively. Previous work done in our laboratory discovered that it was possible to digest PLA in a thermophilic anaerobic digester and this would serve to eliminate waste while producing methane. In this work benefits of anaerobic digestion of PLA using an adapted microbial flora were studied. Results of this work suggest that PLA can be directly digested anaerobically without need for hydrolysis pretreatment. The digestion of hydrolyzed PLA was very fast, and depending on the time of exposure the lag time was between 0.64 and 3.5 days, when compared to a lag time of 25 days when using raw PLA. Anaerobic digestion yielded 94 -98% of theoretical methane yield, indicating almost complete biogasification of the material. ( en ) Advisors/Committee Members: Welt, Bruce A. (committee chair), Koopman, Ben L. (committee member).

Subjects/Keywords: Anaerobic digestion; Biodegradation; Hydrolysis; Kinetics; Landfills; Material degradation; Methane; Methane production; Molecular weight; Polymers; anaerobic, commercial, digestion, hydrolysis, pla

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APA (6^th Edition):

Moreira, C. (2009). Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0025168

Chicago Manual of Style (16^th Edition):

Moreira, Cesar. “Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste.” 2009. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0025168.

MLA Handbook (7^th Edition):

Moreira, Cesar. “Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste.” 2009. Web. 23 Jan 2021.

Vancouver:

Moreira C. Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0025168.

Council of Science Editors:

Moreira C. Steam Hydrolysis and Anaerobic Digestion of Biodegradable (polylactic Acid) Packaging Waste. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0025168

University of Florida

13. Peter, Sherin. Biological Denitrification of High Nitrate Industrial Streams.

Degree: MS, Chemical Engineering, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0022265

► The purpose of this project was to develop a biological denitrification system for high nitrate industrial streams. High nitrate samples obtained from an industrial source… (more)

▼ The purpose of this project was to develop a biological denitrification system for high nitrate industrial streams. High nitrate samples obtained from an industrial source and synthetic nitrate solution prepared using nitric acid and DI water were used in the experiments. The goal was to obtain a denitrification rate of 2 mg NO3-N/L/min. Attached growth systems and continuous stirred tank reactors were used for the study. The reactors were kept in anoxic conditions in order to maintain denitrification conditions. Effects of micronutrient deficiency, volatile contaminants high nitrate concentration, and sodium on denitrification rates were studied. From the study, it was concluded that the industrial stream was treatable; however, volatile contaminants present in the feed solution must be aerated out and metals must be removed by ion exchange prior to denitrification. It was also concluded that micronutrients should be added directly to the reactor in order to avoid its precipitation in the feed and deficiency in the reactor. Studies comparing sodium and potassium neutralized nitrate solutions did not show any significant differences in denitrification rates. Thus, it was concluded that sodium did not affect the denitrification process considerably. In the suspended growth system, denitrification rate of 4 mg NO3-N/L/min was achieved with synthetic nitrate solution as the feed, and a denitrification rate of 2 mg NO3-N/L/min was achieved using industrial nitrate solution. An assay was also developed in order to test the biotreatability of high nitrate solutions. In the assay procedure, a batch test is conducted using the test sample along with a synthetic nitrate solution containing the same NO3-N concentration. The absorbance values and denitrification rates of the test sample and synthetic nitrate solution are obtained after 4, 8, and 24 hours. YNO and ?maxNO of the sample and synthetic nitrate solution are obtained from the absorbance and NO3-N measurements. The biotreatability index, BI, of the test sample is obtained by taking the ratio of ?maxNO of the sample to ?maxNO of a synthetic nitrate solution containing the same nitrate concentration. A BI value of 1 means that the test sample can be successfully denitrified, and values considerably less than 1 show that the denitrification will be very difficult. ( en ) Advisors/Committee Members: Svoronos, Spyros (committee chair), Koopman, Ben L. (committee member).

Subjects/Keywords: Bioreactors; Carbon; Electrons; Flasks; Flow velocity; Hydroxides; Micronutrients; Nitrates; Potassium; Sodium; biological, denitrification, treatment, water

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APA (6^th Edition):

Peter, S. (2008). Biological Denitrification of High Nitrate Industrial Streams. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022265

Chicago Manual of Style (16^th Edition):

Peter, Sherin. “Biological Denitrification of High Nitrate Industrial Streams.” 2008. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0022265.

MLA Handbook (7^th Edition):

Peter, Sherin. “Biological Denitrification of High Nitrate Industrial Streams.” 2008. Web. 23 Jan 2021.

Vancouver:

Peter S. Biological Denitrification of High Nitrate Industrial Streams. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0022265.

Council of Science Editors:

Peter S. Biological Denitrification of High Nitrate Industrial Streams. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022265

University of Florida

14. Friedman, Kenneth. Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida.

Degree: M.E., Environmental Engineering Sciences, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0025094

► In several areas of Florida, alternative water supplies, reuse water, and water conservation are being considered as a means to ensure ample water can be… (more)

▼ In several areas of Florida, alternative water supplies, reuse water, and water conservation are being considered as a means to ensure ample water can be provided in the future. In particular, system water loss and residential indoor usage estimates are two important aspects of water conservation programs which are currently based on simple approximations. Methods tested for estimating system water loss analyzed current water audit practices as part of a water conservation plan. One approach is to use the latest version of the American Water Works Association (AWWA) audit software, coupled with the 2009 edition of the AWWA M36 handbook, which was developed to estimate water losses. The AWWA audit and M36 handbook are useful, but different performance indicators need to be used to incorporate these procedures in water conservation plans. Water loss was then analyzed as a potential quantifiable management option in Florida, showing that Florida utilities could estimate their water losses using AWWA procedures with special attention to metering all key water use components. The AWWA software Version 4.0 includes a procedure for developing a Validity Score for the audit based on the input data quality. This scoring system is reviewed and recommendations are made for a Florida specific validity scoring system. Indoor usage methodologies for Florida were evaluated based on analyzing previous studies and test bed sites in Alachua and Hillsborough counties in Florida. Residential indoor water usage cannot be directly determined for most Florida utilities, but can be approximated based on a detailed review of end use studies that measured individual water using events. Toilets were shown to be the largest usage of indoor water in single family homes. Older homes tend to have more indoor water usage per person than newer homes due to fixture efficiency. However, newer homes use more total indoor water due to their larger size. Finally, future single family residential indoor water use patterns can be estimated based on trends in per capita water use and the expected rate at which less efficient devices will be replaced. Water utilities can accelerate this replacement rate by offering incentives to their residential customers. ( en ) Advisors/Committee Members: Heaney, James (committee chair), Koopman, Ben L. (committee member), Sansalone, John (committee member).

Subjects/Keywords: Audits; Censuses; Customers; Faucets; Houses; Toilets; Water conservation; Water loss; Water tables; Water usage; accounts, audit, conservation, florida, gpcd, indoor, loss, people, predictions, residential, urban, water; City of Tampa ( local )

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APA (6^th Edition):

Friedman, K. (2009). Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0025094

Chicago Manual of Style (16^th Edition):

Friedman, Kenneth. “Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida.” 2009. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0025094.

MLA Handbook (7^th Edition):

Friedman, Kenneth. “Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida.” 2009. Web. 23 Jan 2021.

Vancouver:

Friedman K. Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0025094.

Council of Science Editors:

Friedman K. Evaluation of Indoor Urban Water Use and Water Loss Management as Conservation Options in Florida. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0025094

University of Florida

15. Morales, Miguel. Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use.

Degree: M.E., Environmental Engineering Sciences, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0042241

► Title: Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use This thesis presents a new methodology to estimate commercial, industrial, and institutional (CII) water… (more)

▼ Title: Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use This thesis presents a new methodology to estimate commercial, industrial, and institutional (CII) water use based on evaluation of parcel-level customer attribute and water use billing databases. The Florida Department of Revenue (FDOR) and Florida County Property Appraisers (FCPA) databases provide the heated building area and customer classifications for every CII parcel in the state of Florida. Linking this parcel-level attribute data with parcel-level water use billing data provides a major improvement in our ability to estimate CII use. Existing methods typically use the number of employees as the best single indicator of the size of the activity. Employee data is available periodically through the U.S. Census or private surveys. Census data is not available at the parcel level and survey data are expensive to collect. Evaluation of alternative measures of size that are contained in the FDOR/FCPA databases and customer billing data indicate that heated area is the best single measure of size to use across the 55 CII two-digit FDOR land use categories, or subsectors. It is relatively straightforward to link the FDOR and FCPA databases for utilities because the water management districts provide information on utility boundaries. The more difficult challenge is to link these parcel-level databases with the utility s customer billing database. The level of effort depends on the type of billing system and whether common fields are available to create the necessary relational databases. Only a few Florida water utilities are known to have merged these databases. The base case for this analysis is Hillsborough County Water Resources Services and Gainesville Regional Utilities that provide a relatively large sample of 3,205 CII parcels of which 69% are commercial, 10% are industrial, and 21% are institutional. Property and parcel attributes of this sample dataset including heated area distributions were evaluated at the subsector level and compared to the state-wide totals of CII parcels, to gain a sense of the representativeness of the sample. Then, monthly water use was analyzed to estimate average, base, seasonal, and May peak water use per CII parcel. Finally, water use coefficients expressed in gallons per square foot of heated area per day were developed for each of the available FDOR CII subsectors. Knowing the water use coefficient and the total heated area for each FDOR subsector, it is simple to estimate their total water use. The availability of the FDOR/FCPA databases provides a major improvement in our ability to estimate CII water use. The quality of these estimates will continue to improve as more utilities link their billing data with the FDOR/FCPA databases. ( en ) Advisors/Committee Members: Heaney, James (committee chair), Koopman, Ben L. (committee member), Mazyck, David W. (committee member).

Subjects/Keywords: Billing; Counties; Databases; Histograms; Public utilities; Statistics; Utilities; Water resources; Water tables; Water usage; commercial, conservation, demand, estimating, industrial, institutional, management, parcel, use, water; Hillsborough County ( local )

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APA (6^th Edition):

Morales, M. (2010). Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042241

Chicago Manual of Style (16^th Edition):

Morales, Miguel. “Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use.” 2010. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0042241.

MLA Handbook (7^th Edition):

Morales, Miguel. “Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use.” 2010. Web. 23 Jan 2021.

Vancouver:

Morales M. Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use. [Internet] [Masters thesis]. University of Florida; 2010. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0042241.

Council of Science Editors:

Morales M. Parcel-Level Methodology for Estimating Commercial, Industrial and Institutional Water Use. [Masters Thesis]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0042241

University of Florida

16. Bai, Wei. Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces.

Degree: M.E., Environmental Engineering Sciences, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0041967

► The deposition and growth of microbes in the built environment have adverse public health and economic impacts. Illuminated surfaces of TiO2 have potential for photocatalytic… (more)

Subjects/Keywords: Aspergillus niger; Carbon; Catalysis; Dyes; Electrons; Fullerenes; Fungi; Grouts; Nanocomposites; Tiles; enhancement, microbial, polyhydroxy, surfaces, tio2

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APA (6^th Edition):

Bai, W. (2010). Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041967

Chicago Manual of Style (16^th Edition):

Bai, Wei. “Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces.” 2010. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0041967.

MLA Handbook (7^th Edition):

Bai, Wei. “Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces.” 2010. Web. 23 Jan 2021.

Vancouver:

Bai W. Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces. [Internet] [Masters thesis]. University of Florida; 2010. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0041967.

Council of Science Editors:

Bai W. Titanium Dioxide-Polyhydroxy Fullerene Nanocomposite for Photocatalytic, Antimicrobial Surfaces. [Masters Thesis]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0041967

University of Florida

17. Herr, Christina Beth. Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes.

Degree: M.E., Environmental Engineering Sciences, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0043266

Subjects/Keywords: Flow velocity; Manuals; Particle mass; Particle size classes; Phosphorus; Rain; Sediments; Stormwater; Surface runoff; Urban runoff; distribution; matter; nutrient; particle; particulate; rainfall; runoff; sampling; sediment; size; solids; stormwater; City of Gainesville ( local )

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APA (6^th Edition):

Herr, C. B. (2011). Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043266

Chicago Manual of Style (16^th Edition):

Herr, Christina Beth. “Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes.” 2011. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0043266.

MLA Handbook (7^th Edition):

Herr, Christina Beth. “Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes.” 2011. Web. 23 Jan 2021.

Vancouver:

Herr CB. Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes. [Internet] [Masters thesis]. University of Florida; 2011. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0043266.

Council of Science Editors:

Herr CB. Experimental Analysis of Rainfall-Runoff Sampling Techniques and Volumetric Clarifying Filter Treatment Processes. [Masters Thesis]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043266

University of Florida

18. Mostary, Shabnam. Trace Metals Leachability Characterization of Phosphogypsum.

Degree: M.E., Environmental Engineering Sciences, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0043079

Subjects/Keywords: Barium; Calcium; Detection; Groundwater; Leaching; pH; Phosphates; Phosphogypsum; Toxicity; Water tables; LEACHABILITY; METALS; PHOSPHOGYPSUM; TRACE; City of Orlando ( local )

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APA (6^th Edition):

Mostary, S. (2011). Trace Metals Leachability Characterization of Phosphogypsum. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0043079

Chicago Manual of Style (16^th Edition):

Mostary, Shabnam. “Trace Metals Leachability Characterization of Phosphogypsum.” 2011. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0043079.

MLA Handbook (7^th Edition):

Mostary, Shabnam. “Trace Metals Leachability Characterization of Phosphogypsum.” 2011. Web. 23 Jan 2021.

Vancouver:

Mostary S. Trace Metals Leachability Characterization of Phosphogypsum. [Internet] [Masters thesis]. University of Florida; 2011. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0043079.

Council of Science Editors:

Mostary S. Trace Metals Leachability Characterization of Phosphogypsum. [Masters Thesis]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0043079

University of Florida

19. Hu, Yue. Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems.

Degree: PhD, Environmental Engineering Sciences, 2017, University of Florida

URL: https://ufdc.ufl.edu/UFE0050995

Subjects/Keywords: batch; byproduct; chromate; contaminant; dinsinfection; exchange; hardness; inorganic; ion; model; nitrate; perchlorate; pilot; small; strontium; treatment; water

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APA (6^th Edition):

Hu, Y. (2017). Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0050995

Chicago Manual of Style (16^th Edition):

Hu, Yue. “Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems.” 2017. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0050995.

MLA Handbook (7^th Edition):

Hu, Yue. “Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems.” 2017. Web. 23 Jan 2021.

Vancouver:

Hu Y. Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems. [Internet] [Doctoral dissertation]. University of Florida; 2017. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0050995.

Council of Science Editors:

Hu Y. Contaminant Selectivity, Model Development, and Pilot Study of Innovative Ion Exchange for Small Public Water Systems. [Doctoral Dissertation]. University of Florida; 2017. Available from: https://ufdc.ufl.edu/UFE0050995

University of Florida

20. Grigsby, Melanie. Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events.

Degree: M.E., Environmental Engineering Sciences, 2010, University of Florida

URL: https://ufdc.ufl.edu/UFE0041278

► Particulate matter (PM) generated from vehicle traffic and roadways accumulate on the roadway surface and are washed off during a rainfall-runoff event. PM is a… (more)

Subjects/Keywords: Bodies of water; Environmental policy; Motor vehicle traffic; Pollutants; Rain; Roads; Storms; Stormwater; Surface runoff; Watersheds; matter, particulate, pollutant, runoff, storm, traffic, water

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APA (6^th Edition):

Grigsby, M. (2010). Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041278

Chicago Manual of Style (16^th Edition):

Grigsby, Melanie. “Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events.” 2010. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0041278.

MLA Handbook (7^th Edition):

Grigsby, Melanie. “Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events.” 2010. Web. 23 Jan 2021.

Vancouver:

Grigsby M. Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events. [Internet] [Masters thesis]. University of Florida; 2010. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0041278.

Council of Science Editors:

Grigsby M. Analysis of Particulate Matter Generated from Vehicle Traffic during and Prior to Rainfall Events. [Masters Thesis]. University of Florida; 2010. Available from: https://ufdc.ufl.edu/UFE0041278

University of Florida

21. Dhoble, Abhishek. High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions.

Degree: MS, Agricultural and Biological Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0041041

► Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of… (more)

▼ Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Science HIGH SOLIDS ANAEROBIC DIGESTION FOR THE LONG TERM EXPLORATORY NASA LUNAR SPACE MISSIONS By Abhishek Dhoble December 2009 Chair: Pratap C. Pullammanappallil Major: Agricultural and Biological Engineering 'What would it be like to live on the moon?' The National Aeronautical and Space Administration (NASA) solidified its goal of a Colonization of the Moon as a reality in the near future. The Lunar outpost will be an inhabited facility on the surface of the Moon which NASA currently proposes to construct over five years between 2019 and 2024. In a confined environment away from Earth s surface, regeneration of resources including air, water, and nutrients is essential for the crew to survive. NASA is currently funding research for a variety of solid waste resource recovery technologies that may provide useful alternatives to the current method of waste management. One of the biological technologies being tested is a type of anaerobic digestion named high-solids anaerobic digestion. The technical feasibility of applying high-solids anaerobic digestion for reduction and stabilization of the organic fraction of solid wastes generated during Lunar space missions was investigated. Anaerobic biochemical methane potential assays run on several individual waste feedstocks expected to be produced during Lunar space missions resulted in ultimate methane yields ranging from 0.01 to 0.846L g-1 solids added. Two batch systems were tested, one of which had no agitation of solids during digestion of materials and the other was mixed continuously at 180 RPM. The unmixed digester performed better than the agitated digester. The anaerobic biodegradation performance of the NASA Lunar mission waste stream was characterized in a two stage hybrid system under thermophilic conditions. Based on these characteristics, a prototype digester was designed and sized for a space mission with a four-person crew during a one year exploratory Lunar space mission. With a view to increasing methane yield and decreasing undigested solids, two options were investigated: heat treatment of waste and replacement of current plastic packaging material with biodegradable polymers. Steam heat treatment did not show any significant effect in terms of methane potential or degradation. Four different brands of compostable/biodegradable polymers available in the market were tested for their biodegradability and biochemical methane potential. The Bio Bagregistered trademark showed the most promise. Incorporating biodegradable materials could potentially enhance methane yield by 24% and reduce solid residues by 70%. Research presented here supports the use of high-solids anaerobic digestion for bioregenerative reduction and stabilization of organic components of solid wastes during extended Lunar space missions. ( en ) Advisors/Committee Members: Pullammanappallil, Pratap C. (committee chair), Teixeira, Arthur A. (committee member), Koopman, Ben L. (committee member).

Subjects/Keywords: Anaerobic digestion; Biochemistry; Biodegradation; Biogas; Biomass; Digestion; Liquids; Methane; pH; Steam; als, anaerobic, biogas, biogasification, digestion, lunar, methane, nasa, spacewaste, thermophilic, waste

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APA (6^th Edition):

Dhoble, A. (2009). High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041041

Chicago Manual of Style (16^th Edition):

Dhoble, Abhishek. “High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions.” 2009. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0041041.

MLA Handbook (7^th Edition):

Dhoble, Abhishek. “High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions.” 2009. Web. 23 Jan 2021.

Vancouver:

Dhoble A. High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0041041.

Council of Science Editors:

Dhoble A. High Solids Anaerobic Digestion for the Long Term Exploratory Nasa Lunar Space Missions. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0041041

University of Florida

22. Zhang, Qi. Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium.

Degree: MS, Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0024123

► Aerosolization of biological agents poses one of the biggest threats of biological attacks. Besides, natural pandemics such as SARS and avian flu transmitted by aerosolized… (more)

▼ Aerosolization of biological agents poses one of the biggest threats of biological attacks. Besides, natural pandemics such as SARS and avian flu transmitted by aerosolized pathogens have kept threatening the public health since the beginning of this century. Bioaerosol agents can be dispersed over a wide area in a short period of time. In this study, a RHELP (Regenerative-High Efficiency-Low Pressure) purification system for building air ventilation system was developed to provide protection from exposure to pathogenic bioaerosols. The system utilizes a combination of nanofiber filtration and microwave sterilization. The quality of the RHELP system was characterized by two phases of experiments. Phase I focused on the physical collection efficiency of the system. Polyacrylonitrile (PAN) nanofiber electrospun on activated carbon fiber (ACF) mats served as the filtration media. An ACF/PAN/ACF sandwich structure was used to protect the PAN layer from detachment. Filtration experiments were carried out to evaluate the sandwiched PAN nanofiber filters with different electrospinning deposition times. Results showed that three out of the four tested PAN filters achieved a higher filter quality factor than 0.0203 per Pa, the military standard (MIL-F-51079D for HEPA filters. Interestingly, the filter quality of shorter term electrospun PAN filters was found to be higher than those of longer-term electrospun ones. Furthermore, multi-sandwiched filters [n layers of PAN nanofiber mats with (n + 1) layers of ACF mats, n > 1] showed higher filter quality factors than those single-sandwiched ones. The MPPS (most penetrative particle size) of the PAN nanofiber filters was also studied. Results showed that the MPPS had a shift to the smaller size compared to a normal 100 to 500 nm range due to the smaller fiber size. In Phase II, microwave irradiation was applied to the system. Results of static on-filter inactivation tests showed that the survival fraction of Escherichia coli collected on the filter became below the detection limit when exposed to 500-W-microwave irradiation for less than 90 seconds. Regarding dynamic in-flight microwave irradiation, the Escherichia coli survival fraction was below 0.02% no matter the microwave was applied to system continuously (10 min per 10-minute-cycle) or periodically (5 or 2.5 min per 10-minute-cycle) when the microwave power was set at 500 W. An exponential correlation between the survival fraction and the microwave power applied was also observed. The experimental results demonstrated the advantage of the RHELP system for removal and inactivation of biological aerosol agents. Future research may include characterizing of other filtration media and challenging the system with other types of biological agents such as viruses or spores. ( en ) Advisors/Committee Members: Wu, Chang-Yu (committee chair), Koopman, Ben L. (committee member), Sigmund, Wolfgang M. (committee member).

Subjects/Keywords: Aerosols; Diameters; Filtration; Irradiation; Microwave ovens; Microwaves; Particle size classes; Pressure reduction; Q factors; Velocity

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

APA (6^th Edition):

Zhang, Q. (2008). Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0024123

Chicago Manual of Style (16^th Edition):

Zhang, Qi. “Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium.” 2008. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0024123.

MLA Handbook (7^th Edition):

Zhang, Qi. “Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium.” 2008. Web. 23 Jan 2021.

Vancouver:

Zhang Q. Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium. [Internet] [Masters thesis]. University of Florida; 2008. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0024123.

Council of Science Editors:

Zhang Q. Performance Evaluation of Microwave Assisted Nanofiber Filtration for Aerosolized Bacterium. [Masters Thesis]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0024123

University of Florida

23. Renk, Douglas. Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts.

Degree: MS, Agricultural and Biological Engineering, 2009, University of Florida

URL: https://ufdc.ufl.edu/UFE0041354

► Concern over high transportation fuel costs, trade deficits, depleting resources, energy security, and mounting evidence of global climate change has led to re-investigation of fossil… (more)

▼ Concern over high transportation fuel costs, trade deficits, depleting resources, energy security, and mounting evidence of global climate change has led to re-investigation of fossil fuel alternatives. The U.S. Department of Energy promotes bio-energy as a means to transform our nation s abundant renewable biomass resources into cost competitive, high power biofuels and products. Biodiesel offers one renewable fuel option that can be produced from waste cooking oil sources however, biofuels including biodiesel, are often criticized for low energy yield per unit of energy input and inability to reduce greenhouse gas emissions. Those claims challenge agricultural researchers to find solutions to improve yields and reduce environmental impacts. Can the coupling of biological, solar and ultrasonic technologies enhance the overall energy balance of biodiesel production? This study models and develops a system that builds on information and technology developed through prior research at UF-ABE. This project demonstrates the feasibility of producing renewable fuel from a campus waste stream. It starts with establishing methods in lab trials later tested in field applications. Construction and management of a research-scale production facility was a foray into the logistics of developing an inter-agency unit. Objectives include developing a lab for fuel and feedstock quality testing and for monitoring process. Integration of several components to possibly improve the energy balance and to reduce environmental externalities was investigated. Glycerin co-product bio-gasification, ultrasonic resonance, ethanol inputs and modeling of solar energy inputs were all studied. Improvements in mixing were shown using ultrasonication in liquid mediums. An increase in the rate of the biodiesel reaction occurred using ultrasound. Use of the glycerin co-product from biogas production can provide enough energy for all of the heat required in the process. ( en ) Advisors/Committee Members: Pullammanappallil, Pratap C. (committee chair), Koopman, Ben L. (committee member), Porter, Wendell A. (committee member).

Subjects/Keywords: Biodiesel; Catalysts; Dyes; Esters; Experimentation; Pumps; Raw materials; Soaps; Ultrasonics; Ultrasonography; anaerobic, biodiesel, campus, energy, solar, ultrasound

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

APA (6^th Edition):

Renk, D. (2009). Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0041354

Chicago Manual of Style (16^th Edition):

Renk, Douglas. “Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts.” 2009. Masters Thesis, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0041354.

MLA Handbook (7^th Edition):

Renk, Douglas. “Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts.” 2009. Web. 23 Jan 2021.

Vancouver:

Renk D. Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts. [Internet] [Masters thesis]. University of Florida; 2009. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0041354.

Council of Science Editors:

Renk D. Integrating Technologies in the Biodiesel Process Coupling Ultrasonication Solar Thermal Energy and Anaerobic Digestion of Coproducts. [Masters Thesis]. University of Florida; 2009. Available from: https://ufdc.ufl.edu/UFE0041354

University of Florida

24. Nandakumar, Vignesh. Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces.

Degree: PhD, Materials Science and Engineering, 2018, University of Florida

URL: https://ufdc.ufl.edu/UFE0052040

Subjects/Keywords: antimicrobial; bacterialremoval; cleansing; disinfection; peisilica

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

APA (6^th Edition):

Nandakumar, V. (2018). Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0052040

Chicago Manual of Style (16^th Edition):

Nandakumar, Vignesh. “Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces.” 2018. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0052040.

MLA Handbook (7^th Edition):

Nandakumar, Vignesh. “Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces.” 2018. Web. 23 Jan 2021.

Vancouver:

Nandakumar V. Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces. [Internet] [Doctoral dissertation]. University of Florida; 2018. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0052040.

Council of Science Editors:

Nandakumar V. Physicochemical Aspects of Bacterial Adhesion on Surfaces and Strategies to Remove Adhered Bacteria from Surfaces. [Doctoral Dissertation]. University of Florida; 2018. Available from: https://ufdc.ufl.edu/UFE0052040

University of Florida

25. Buxy, Samriddhi. Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass.

Degree: PhD, Agricultural and Biological Engineering, 2014, University of Florida

URL: https://ufdc.ufl.edu/UFE0046678

Subjects/Keywords: Beets; Biogas; Biomass; Digestion; Enzymes; Methane; Methane production; Pretreatment; Sugar beets; Sugars; anaerobic; biogas; biomass; digestion; microalgae; sugarbeet

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

APA (6^th Edition):

Buxy, S. (2014). Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0046678

Chicago Manual of Style (16^th Edition):

Buxy, Samriddhi. “Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass.” 2014. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0046678.

MLA Handbook (7^th Edition):

Buxy, Samriddhi. “Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass.” 2014. Web. 23 Jan 2021.

Vancouver:

Buxy S. Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass. [Internet] [Doctoral dissertation]. University of Florida; 2014. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0046678.

Council of Science Editors:

Buxy S. Techniques to Enhance Methane Production from Terrestrial (Sugarbeet) and Algal (Nannochloropsis Oculata) Biomass. [Doctoral Dissertation]. University of Florida; 2014. Available from: https://ufdc.ufl.edu/UFE0046678

University of Florida

26. ALNAIMAT,FADI M. Transient Analysis of Solar Diffusion Driven Desalination.

Degree: PhD, Mechanical Engineering - Mechanical and Aerospace Engineering, 2011, University of Florida

URL: https://ufdc.ufl.edu/UFE0042677

► This research concerns a transient analysis of the solar diffusion driven desalination (DDD) process, in which solar energy is utilized as the driving source to… (more)

▼ This research concerns a transient analysis of the solar diffusion driven desalination (DDD) process, in which solar energy is utilized as the driving source to distill seawater. The process is based on evaporating seawater into a dry air stream using a packed bed, and then condensing out the vapor to produce freshwater. A rigorous theoretical framework for the transient heat and mass transfer during the evaporation and condensation within backed beds is developed in this work. The analysis relies on one-dimensional conservation equations, and as such closure relationships are required. The conservation equations are solved numerically using a finite difference scheme to predict water, air/vapor mixture and packed bed temperatures and humidity ratio within the evaporator and the condenser. The heat and mass transport models account for the transient variations within the packed-bed due to time varying inlet air and water temperatures and humidity. A laboratory scale solar simulated DDD facility has been constructed to operate in a re-circulating mode. Detailed experiments have been run to examine the efficacy of the analysis. Transient heating to the evaporator water varies from 1 to 8 kW over a 2.5 hour time span. Water mass fluxes ranging from 1.0 to 2.15 kg/m2-s and air mass fluxes ranging from 0.5 to 1.02 kg/m2-s are considered. The measured exit water and air/vapor mixture temperatures and humidity ratio agree well with those predicted using the transient model. The model appears to provide a very good predictive capability for the thermal and mass transport within the evaporator and condenser. The model is utilized as a design tool to identify the optimal operating conditions and analyze the performance of the desalination processes. The fundamental transient analysis should find utility in a broad variety of applications. The performance of the solar DDD has been investigated under the different operating conditions. Several methods have been proposed to improve the water production and reduce the specific energy consumption. It has been demonstrated that the system energy consumption can be reduced significantly as low as 1.65 kWh/m3. The system water production can be improved up to 7.5 Liter per m2 of solar collector area. Economic analysis on a small scale solar DDD unit has been carried out. It is believed that the solar DDD can be promising for small scale applications. ( en ) Advisors/Committee Members: Klausner, James F (committee chair), Hahn, David W (committee member), Mei, Renwei (committee member), Koopman, Ben L (committee member).

Subjects/Keywords: Desalination; Energy consumption; Evaporators; Fresh water; Inlet temperature; Inlets; Liquids; Saltwater; Sea water; Water temperature; DESALINATION – ENERGY – SOLAR

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

APA (6^th Edition):

M, A. (2011). Transient Analysis of Solar Diffusion Driven Desalination. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0042677

Chicago Manual of Style (16^th Edition):

M, ALNAIMAT,FADI. “Transient Analysis of Solar Diffusion Driven Desalination.” 2011. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0042677.

MLA Handbook (7^th Edition):

M, ALNAIMAT,FADI. “Transient Analysis of Solar Diffusion Driven Desalination.” 2011. Web. 23 Jan 2021.

Vancouver:

M A. Transient Analysis of Solar Diffusion Driven Desalination. [Internet] [Doctoral dissertation]. University of Florida; 2011. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0042677.

Council of Science Editors:

M A. Transient Analysis of Solar Diffusion Driven Desalination. [Doctoral Dissertation]. University of Florida; 2011. Available from: https://ufdc.ufl.edu/UFE0042677

University of Florida

27. Zhang, Yingxiu. Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts.

Degree: PhD, Agricultural and Biological Engineering, 2018, University of Florida

URL: https://ufdc.ufl.edu/UFE0052092

Subjects/Keywords: algae; anaerobic; biofuel; digestion; exopolysaccharide; modeling; photobioreactor

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

APA (6^th Edition):

Zhang, Y. (2018). Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0052092

Chicago Manual of Style (16^th Edition):

Zhang, Yingxiu. “Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts.” 2018. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0052092.

MLA Handbook (7^th Edition):

Zhang, Yingxiu. “Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts.” 2018. Web. 23 Jan 2021.

Vancouver:

Zhang Y. Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts. [Internet] [Doctoral dissertation]. University of Florida; 2018. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0052092.

Council of Science Editors:

Zhang Y. Cultivation, Growth Optimization and Modeling of a Saline Cyanothece Species BG0011 for Production of Biofuels and Bioproducts. [Doctoral Dissertation]. University of Florida; 2018. Available from: https://ufdc.ufl.edu/UFE0052092

University of Florida

28. Zhang, Hao. Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff.

Degree: PhD, Environmental Engineering Sciences, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0045274

Subjects/Keywords: Flow velocity; Nitrogen; Nutrients; Rain; Records retention; Sediments; Stormwater; Surface runoff; Urban runoff; Watersheds; bmp; nitrogen; partition; runoff; speciation; transport; uop

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

APA (6^th Edition):

Zhang, H. (2013). Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045274

Chicago Manual of Style (16^th Edition):

Zhang, Hao. “Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff.” 2013. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0045274.

MLA Handbook (7^th Edition):

Zhang, Hao. “Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff.” 2013. Web. 23 Jan 2021.

Vancouver:

Zhang H. Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0045274.

Council of Science Editors:

Zhang H. Nutrient (N, P) Transport, Partitioning and Fate in Urban Runoff. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045274

University of Florida

29. Doan, Nguyet Thi. Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock.

Degree: PhD, Agricultural and Biological Engineering, 2017, University of Florida

URL: https://ufdc.ufl.edu/UFE0050630

Subjects/Keywords: algae-feedstock; biofuel; cyanothece-bg0011; exopolysaccharide; hydrolysis-pretreatment; light-dark; methane; microalgae; nitrogen-fixation; salt-acclimation

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

APA (6^th Edition):

Doan, N. T. (2017). Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0050630

Chicago Manual of Style (16^th Edition):

Doan, Nguyet Thi. “Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock.” 2017. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0050630.

MLA Handbook (7^th Edition):

Doan, Nguyet Thi. “Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock.” 2017. Web. 23 Jan 2021.

Vancouver:

Doan NT. Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock. [Internet] [Doctoral dissertation]. University of Florida; 2017. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0050630.

Council of Science Editors:

Doan NT. Assessing and Enhancing Methane Productivity from Anaerobic Digestion Using Cyanothece BG0011 as Feedstock. [Doctoral Dissertation]. University of Florida; 2017. Available from: https://ufdc.ufl.edu/UFE0050630

University of Florida

30. Pathapati, Subbu Srikanth. Experimental and Numerical Analysis of Stormwater Unit Operations and Processes.

Degree: PhD, Environmental Engineering Sciences, 2008, University of Florida

URL: https://ufdc.ufl.edu/UFE0022127

Subjects/Keywords: Average linear density; Charge flow devices; Diameters; Flow velocity; Modeling; Particle mass; Particle size distribution; Particle trajectories; Sieving; Velocity; cfd, filtaration, particulate, separation, stormwater, urban

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

APA (6^th Edition):

Pathapati, S. S. (2008). Experimental and Numerical Analysis of Stormwater Unit Operations and Processes. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0022127

Chicago Manual of Style (16^th Edition):

Pathapati, Subbu Srikanth. “Experimental and Numerical Analysis of Stormwater Unit Operations and Processes.” 2008. Doctoral Dissertation, University of Florida. Accessed January 23, 2021. https://ufdc.ufl.edu/UFE0022127.

MLA Handbook (7^th Edition):

Pathapati, Subbu Srikanth. “Experimental and Numerical Analysis of Stormwater Unit Operations and Processes.” 2008. Web. 23 Jan 2021.

Vancouver:

Pathapati SS. Experimental and Numerical Analysis of Stormwater Unit Operations and Processes. [Internet] [Doctoral dissertation]. University of Florida; 2008. [cited 2021 Jan 23]. Available from: https://ufdc.ufl.edu/UFE0022127.

Council of Science Editors:

Pathapati SS. Experimental and Numerical Analysis of Stormwater Unit Operations and Processes. [Doctoral Dissertation]. University of Florida; 2008. Available from: https://ufdc.ufl.edu/UFE0022127

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Open Access Theses and Dissertations