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 215 for “"Wastewater Treatment Plants"”.
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Odor Monitoring at Wastewater Treatment Plants
… corrosion is one of the major sources of odor in wastewater treatment plants. Evaluation of existing or potential odor problems requires knowledge of the type of compounds likely to cause such problems and the mechanism of their formation in wastewater systems which is discussed in this paper. For …
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Machine Learning Methods for Wastewater Treatment Plants
Modern wastewater treatment plants base their biological processes on advanced control systems which ensure compliance with discharge limits and minimize energy consumption by responding to information from on-line probes. The correct probe readings are particularly crucial for intermittent …
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Life-cycle assessment of wastewater treatment plants
… model for the carbon footprints analysis of wastewater treatment plants (WWTPs), using a life cycle assessment (LCA) approach. In previous research, the issue of global warming is often related to traditional industries with high carbon dioxide (CO2) emissions, such as power plants and …
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Modelling material mass balances over wastewater treatment plants
The overall objective of whole wastewater treatment plant (WWTP)modelling is to develop a COD (electron), carbon (C), nitrogen (N), phosphorus (P), alkilinity (proton), calcium (Ca), magnesium (Mg) and inorganic suspended solids (ISS) concentrations mass balances models for unit operations in …
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Fate of emerging organic contaminants in Chinese wastewater treatment plants
… pose potential risks to humans and ecosystems. Wastewater treatment plants (WWTPs) are significant sources and major routes of EOCs entering the environment. There is therefore a need to study the fate of EOCs in WWTPs to improve the risk assessment for these EOCs. In this thesis, the passive …
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Total emission analysis of sewerage systems and wastewater treatment plants
… detailed computer models of the sewerage system, wastewater treatment plant and receiving watercourse. Solving intermittent discharge problems using UPM, often requires the installation of in-sewer storage tanks. However, recent research from Germany and elsewhere (e.g. Austria and Denmark) has …
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Occurrence of cyclo-siloxanes in wastewater treatment plants - quantification and monitoring
… and toxic emerging contaminants introduced to wastewater from common healthcare and biomedical products, and various industrial processes. They remain unchanged through wastewater treatment and a considerable portion ends up in surface waters through effluent discharge. 30 to 60 ng/L …
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An investigation into control strategies for activated sludge wastewater treatment plants.
… is widely used throughout the world for the treatment of wastewater from domestic and industrial users. This process is not normally efficiently controlled and hence increasingly important financial incentives and environmental considerations exist for improving the efficiency and quality of …
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Computational Intelligence Techniques for Control and Optimization of Wastewater Treatment Plants
… instrumentation and control strategies for wastewater treatment plants in order to improve energy efficiency, while guaranteeing process stability and maintenance of high cleaning capacity, has become a priority for WWTP operators due to increasing treatment costs. To achieve these ambitious …
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Energy optimisation on wastewater treatment plants focusing on different aeration technology
… be reduced throughout all sectors and wastewater treatment is no exception. With reduction of electrical consumption of WWTPs in mind, this thesis focused on the costing and viability of replacing less efficient aeration technology (slow speed surface aeration) with more efficient …
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Feasibility Study of Sustainable Energy to Power Wastewater Treatment Plants for Islands
Municipal wastewater treatment plays a critical role in protecting local water quality and public health. Wastewater treatment is very energy intensive as it involves operation of large motors, drives, pumps and other equipment on a 24 hour-a-day basis. Improving quality of sewage treatment to …
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Integrating Transactive Energy and Machine Learning For Re-Energizing Wastewater Treatment Plants
A large wastewater treatment plant (WWTP) typically consumes 300-500 MWh of electricity per day and often relies on the grid power generated by burning fossil fuels. Wind- and solar-based distributed generation emerged as a clean energy solution to achieve environmental sustainability and net-zero …
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Treatability of emerging contaminants in wastewater treatment plants during wet weather flows
Municipal wastewater treatment plants have traditionally been designed to treat conventional pollutants found in sanitary wastewaters. However, many synthetic pollutants, such as pharmaceuticals and personal care products (PPCPs), also enter the wastewater stream. Some of these nontraditional …
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Geometric programming approach to the preliminary design of wastewater treatment plants, A
Includes bibliographical references (pages 150-153).
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Detection of per- and polyfluoroalkyl substances in biosolids from wastewater treatment plants
… interests and concerns all over the world. Wastewater treatment plants (WWTPs) have been considered as an important precipitates and sources of PFASs compounds in the environment. In this study, a method was developed to detect PFASs in biosolids using high-performance liquid chromatography …
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Effects of Microbial Community Stress Response and Emerging Contaminants on Wastewater Treatment Plants
… stressed areas increases, it is critical that wastewater treatment plants (WWTPs) continue to replenish depleted water supplies, and serve as an alternative water source. WWTPs depend on microorganisms in activated sludge to remove pollutants from wastewater and therefore an understanding of …
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BIOWINTM Modeling of the Startup of an Anaerobic Digester Used in Wastewater Treatment Plants
… shutdown and cleanup are commonly practiced at Wastewater Treatment Plants (WWTPs). Currently, WWTP operators face the challenge of starting up an anaerobic digester in a timely, cost-effective manner with effective methane gas production. This challenge can be addressed by computer modeling and …
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Municipal wastewater treatment plants' nitrogen removal response to financial incentives in Maryland and Virginia
… the extent to which Maryland and Virginia wastewater treatment plants undertake operational improvements to increase nutrient removal in response to state program incentives. Through quantitative and qualitative analysis, this thesis found evidence of lowered nitrogen discharges in response …
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