Spelling suggestions: "subject:"engineering - 0nvironmental"" "subject:"engineering - anvironmental""
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Mass Transfer and biodegradation of polycyclic aromatic hydrocarbons from non-aqueous phase liquidsAlshafie, Mohammed January 2002 (has links)
No description available.
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Characterization of hydraulic parameters affecting the performance of aerated lagoons by Robert Delatolla.Delatolla, Robert January 2003 (has links)
No description available.
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Sustainable waste management systems and their application in Trinidad and TobagoHayward, Devin. January 2006 (has links)
No description available.
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Activated silica sol as a flocculant in treatment of mine effluentsDemers, Isabelle January 2002 (has links)
No description available.
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EFFECTS OF SOIL PROPERTIES AND MICROBIAL SOURCE ON PENTACHLOROPHENOL BIOREMEDIATIONPu, Xunchi January 2005 (has links)
No description available.
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Volatile organic compound control in chemical industry wastewater using a membrane bioreactor: Emission reduction and microbial characterizationMin, Kyung-Nan 01 January 2006 (has links)
This study investigated (1) the volatilization and biodegradation removal rates of volatile organic compounds (VOCs) in a membrane bioreactor (MBR), and (2) impacts of biomass and soluble organics characteristics on membrane fouling. A laboratory-scale MBR was operated to treat synthetic wastewater containing acetaldehyde, butyraldehyde and vinyl acetate. In Phase I, the organic loading rates were varied from 1.06 to 2.98 kg chemical oxygen demand (COD) m-3 d-1. In Phase II, the dissolved oxygen (DO) concentrations were varied from 0.2 to 5.4 mg L-1. Total VOC removal rates were greater than 99.75 percent at all organic loading rates. Volatilization removal rates were achieved as low as 0.78 percent for acetaldehdyde, 1.27 percent for butyraldehyde, and 0.59 percent for vinyl acetate. Biomass stabilization status had a significant effect on volatilization. Under unstable conditions, 85 percent of vinyl acetate was volatilized. Regardless of the DO concentrations, total and biodegradation removal rates were greater than 99.7 and 95.9 percent. When the DO concentrations were increased, the volatilization rate increased. The experimental data were close to VOC emission modeling results using an analytical model and TOXCHEM+. The biomass showed a non-Newtonian and pseudoplastic flow behavior. The average particle diameter was less than 10 µm. Few filamentous bacteria were observed, leading to weak and fragile microbial flocs. The microorganisms were dispersed freely as small clumps or individual cells. The total organic carbon (TOC) and COD concentration in the bound extracellular polymeric substances (EPS) increased linearly with viscosity. The membrane permeate flux was inversely proportional to mixed liquor volatile suspended solids (MLVSS) concentration, viscosity, and total bound EPS concentration. The cake resistances were approximately 95 percent of the total membrane resistances. Soluble organics had a greater impact on cake layer formation under DO limited conditions, when soluble organics contained a larger amount of high molecular weight compounds. The bound EPS concentration had a greater influence on membrane filtering resistance than the molecular weight fraction of EPS. It is confirmed that confocal laser scanning microscopy (CLSM) could be a promising tool to visualize and map the biofouled membrane.
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Characterisation of tyrosinase for the treatment of aqueous phenolsIkehata, Keisuke. January 1999 (has links)
No description available.
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Mixing and transport processes in wastewater basinsIasenza, Robert. January 1998 (has links)
No description available.
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Infrastructure, sustainable development & societySiddiqui, Sadaf. January 1997 (has links)
No description available.
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Engineering for sustainable development : development of a protocolMolgat, Louis. January 1996 (has links)
No description available.
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