Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"aerobic degradation"”.
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Anaerobic/aerobic degradation of a textile dye wastewater
… plants that treat textile dye wastewater. Both anaerobic and aerobic biological degradation of azo dyes have been reported in the literature; the rate and extent of degradation is often quite dye-specific. This research utilized laboratory-scale reactors to investigate the effectiveness of those …
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An evaluation of the environmental fate of reactive dyes
… and in the environment are principally through anaerobic and aerobic biodegradation and photodegradation. The research herein describes the use of LC-MS analysis with laboratory simulations to develop a better understanding of the occurrence and fate of reactive dyes and their degradation products …
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Batch test for measurement of ordinary heterotrophic organism active biomass in activated sludge mixed liquor
… function in the activated sludge system (e.g. aerobic degradation of organics) are grouped together as a single entity, which has been called a "surrogate" organism. This surrogate organism is assigned a set of unique characteristics that reflect the behaviour of the group, but may not reflect …
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Iron oxidation coupled with biodegradation of organic contaminants in a simulated ground water system
Aerobic degradation of hydrocarbon contaminants in anaerobic ground water would be enhanced by oxygenating the water. However, when a contaminated ground water contains high concentrations of reduced iron, competition for oxygen may occur. This study was designed to study this competition. The …
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Approaches for the Implementation of Sustainability along the Pharmaceutical Life Cycle
… properties but showed mixed biodegradability: anaerobic degradation improved, aerobic degradation decreased. Two approaches addressed more efficient resource use: (1) multiplexed kinase activity screening, reducing extensive single-kinase testing; and (2) evaluating human platelet lysate as a …
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An analysis of field data for evidence of anaerobic degradation of PAH and BTEX plumes at manufactured gas plant sites
… Plain. These data were used to calculate biodegradation rate constants, which were then compared with laboratory microcosm data and published values. Isopleths were drawn from the field data to indicate the dominant biodegradation mechanisms at each of the sites, and stoichiometric …
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An ecological study of waste stabilization ponds in Werribee, Australia, with special reference to nutrient and plankton dynamics
… produce oxygen via photosynthesis, facilitating aerobic degradation and nitrification by aerobic and nitrifying bacteria respectively. In the pond series at Werribee, ammonia in the raw sewage was completely removed through nitrification as well as algal cell uptake during periods of longest …
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Water and Nutrient Recycling in High Rate Algae Ponds Fed in Primary Treated Municipal Wastewater
… addition to these field experiments, laboratory aerobic degradation experiments were conducted to determine the nutrient release of previously digested sludge in aerobic ponds. Pretreatment of algae sludge did not have a significant effect on nutrient release of previously anaerobically digested …
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Degradation Of Halogenated Aliphatic Compounds In Sequential Anaerobic
… of this study was to utilize an alternating anaerobic/aerobic sequence to biologically transform perchloroethylene to non-hazardous end products such as ethylene, CO2 and H2 using a single microbial consortia in a methanogenic and/or a homoacetogenic environment followed by a aerobic …
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Fate of 17α-Estradiol, 17β-Estradiol, and Estrone in Agricultural Soils and Sediments
… soil phase concentrations were measured; (2) the aerobic biodegradation of 17α-E2 and 17β-E2 in soils using aerobic soil microcosms on two soils with different taxonomic properties, sacrificed over a 3-week period; and (3) the biotransformation of 17α-E2, 17β-E2, and E1 in sediments using …
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Improving bioenergy recovery from municipal wastewater with a novel cloth-filter anaerobic membrane bioreactor
… conventional activated sludge process (CAS) for aerobic degradation of organics into carbon dioxide (CO2), which is a double negative for energy efficiency. It dissipates the organic energy content of wastewater and requires substantial energy input for aeration. Anaerobic membrane bioreactors …