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 20 of 131 for “"municipal wastewater"”.
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Electrodisinfection of Municipal Wastewater Effluent
To avoid the spread of disease from sewage treatment effluents, pathogenic microorganisms present must be destroyed by one or a combination of disinfection methods. Chlorine remains the predominant disinfectant used although it consumes considerable amounts of energy and has associated exposure …
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Combined Anaerobic/Aerobic Treatment for Municipal Wastewater
… of combined anaerobic/aerobic processes for wastewater treatment has been shown feasible, especially for industrial wastewaters with high concentration of organics. However, the utilization of this type of technology for treating wastewaters with low content of organic matter, such as …
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Lipid Production by Microalgae Treating Municipal Wastewater
… ponds can also be used to grow microalgae from municipal waste streams. Although high biomass productivity can be achieved in these systems, there remains a large production gap between large volumes of biomass cultivation and high lipid content from microalgae cells. Low lipid content has been …
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Secondary Municipal Wastewater Treatment Using the UASB/Solids Contact Technology
… pretreatment and aerobic post-treatment of municipal wastewater is being used more frequently. Recent investigations in this field using an AFBR/aeration chamber combination demonstrated the technical feasibility of this process. The investigation presented herein describes the use of a …
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Feasibility study of upflow anaerobic filter for pretreatment of municipal wastewater
… of Upflow Anaerobic Filter for Pretreatment of Municipal Wastewater SUMMARY Anaerobic reactors have been successfully installed in full-scale plants world-wide for treating high-strength industrial wastewater over the years. Recently, there has been significant interest in exploring this …
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Acid-phase and Two-phase Codigestion of FOG in Municipal Wastewater
Acidogenic codigestion of fats, oils, and greases (FOG) was studied at 37"C using suspended sludge digesters operated as sequencing batch reactors (SBRs). Volatile fatty acid (VFA) production was found to increase with larger FOG loading rates, although this increase was insignificant compared the …
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Municipal wastewater effects on nitrogen cycling in a mature hardwood forest
Land disposal of municipal wastewater is considered ecologically acceptable and cost effective. The success of land treatment systems, however, requires proper functioning of all ecosystem components. The impact of municipal wastewater irrigation on the structure and function of an Appalachian …
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A sponge-based moving bed bioreactor for micropollutant removal from municipal wastewater
… particular health and environmental concerns. Wastewater treatment plants (WWTPs) serve as significant barriers to reduce the release of micropollutants. However, due to the diverse characteristics and low concentrations of micropollutants, WWTPs can only achieve variable and often inadequate …
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Use of high-rate filamentous algal ponds for primary municipal wastewater treatment
… offer a promising alternative to conventional municipal wastewater treatment. Research on selecting filamentous algal species for municipal wastewater bioremediation is currently limited. Chapter 2 introduces a screening protocol aimed at identifying robust cultivars suitable for HRFAP …
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Artificial Recharge of Groundwater with Recycled Municipal Wastewater in the Pajaro Valley
<p><strong>Abstract</strong></p> <p>The Pajaro Valley, located along California’s Central Coast, is the State’s 5<sup>th</sup> most productive agricultural region. Groundwater is the main source of water for the region, and due to high agricultural demand, the Pajaro Valley is facing groundwater …
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Enzymatic treatment of pharmaceuticals and personal care products (PPCPs) in municipal wastewater
Conventional wastewater treatment plants do not effectively remove pharmaceuticals and personal care products (PPCPs). As a result, PPCPs enter the environment via treated wastewater discharge. Enzymatic treatment, using the laccasemediator system, is a novel biochemical process that has been shown …
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Removing Soluble Phosphorus from Tertiary Municipal Wastewater Using Phosphorus- Deprived, Filamentous Microalgae
… of phosphorus remaining in the effluent of municipal wastewater treatment plants can contribute to HAB formation. To achieve more complete phosphorus removal, an effluent treatment method has been proposed that uses phosphorus-deprived, filamentous microalgae to quickly assimilate soluble …
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Investigating the properties of persistent organic carbon in municipal wastewater treatment biosolids
Wastewater treatment plants (WWTP) are the primary pathway for many organic contaminants such as pharmaceuticals and persistent organic pollutants (POPs) found in domestic, industrial and hospital effluents to reach the environment. These substances can accumulate in WWPT sludges or treated …
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High-level phosphorus removal in a small municipal wastewater treatment plant (WWTP)
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.
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Legal and institutional barriers to municipal wastewater reuse in Virginia Beach, Virginia
… This thesis is built upon the concept that municipal wastewater reuse is an increasingly important option in the development of new water supplies and that there are four identifiable factors which affect the evolution of reuse applications. In opening chapters the nature of wastewater reuse …
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Removals of sulfonamide and trimethoprim antibiotics in municipal wastewater by biological treatment processes
Discharge of treated municipal effluents is an important route for the release of antibiotic pharmaceuticals into the aquatic environment. The occurrence of antibiotics in the environments is of concern due to their potential impact on aquatic species and the possible proliferation of antibiotic …
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Statistical Evaluation of Rapid Biochemical Oxygen Demand Test for Monitoring Municipal Wastewater Quality
The conventional standard methods for measuring wastewater quality include the 5-day biochemical oxygen demand (BOD5) and carbonaceous BOD (CBOD5). This thesis presents an alternative wastewater quality test that requires much less time to achieve valid results. This research addresses the …
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Measurement of composition of organic constituents of municipal wastewater for plant-wide modelling
Historically wastewater treatment unit operation models have been developed in isolation. Attempts have been made at creating common platform models, which would allow modellers to speak a common language when researching wastewater treatment modelling. However, few attempts have been made at …
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Measurement of composition of organic constituents of municipal wastewater for plant-wide modelling
Historically wastewater treatment unit operation models have been developed in isolation. Attempts have been made at creating common platform models, which would allow modellers to speak a common language when researching wastewater treatment modelling. However, few attempts have been made at …
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