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 99 for “"WWTP"”.
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Simplification of Complex WWTP Models into Simple Design and Evaluative WRRF Tool
Wastewater treatment plant (WWTP) steady-state models have been used, historically, by consulting engineers and researchers for design, process optimisation, and to study and evaluate various operating scenarios. These models have, however, been generally developed for single unit process which …
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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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Impact of urine diversion on Biological Nutrients Removal Activated Sludge Wastewater Treatment Plant (BNRAS WWTP)
… separated WW [Wastewater] can have on BNRAS WWTPs [Biological Nutrient Removal Activated Sludge Wastewater Treatment Plants] with a UCT and a JHB configuration.
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The effect of high solid retention times in activated sludge reactors on operational costs at Mitchells Plain WWTP
Many wastewater treatment plants (WWTPs) in South Africa, which use activated sludge (AS) processes, experience difficulty managing solid retention times (SRT), also referred to as sludge age. To avoid dealing with large quantities of sludge waste, some of these WWTPs operate the AS reactors at …
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Analysis of pharmaceutical compounds in WWTP of the Region of Murcia and its ecotoxicological effects in the Guadalentín River
El agua se puede considerar como el bien más preciado para la vida ya que es completamente imprescindible para su desarrollo. El material es muy abundante pero es muy escaso con las cualidades necesarias para el equilibrio del medio ambiente y para el consumo humano. Esta escasez se debe …
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Computational Intelligence Techniques for Control and Optimization of Wastewater Treatment Plants
… cleaning capacity, has become a priority for WWTP operators due to increasing treatment costs. To achieve these ambitious and even contradictory objectives, this thesis investigates a combination of online measurement systems, computational intelligence and machine learning methods as well as …
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Measurement of composition of organic constituents of municipal wastewater for plant-wide modelling
… integrating different models into a plant-wide WWTP simulation model. Increasing pressure towards the optimisation of water treatment systems have prompted investigation into integrated WWTP modelling. The use of different state variables in WWTP unit operation models has meant that modelling …
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The Economic and Technical Feasibility of the Application of Partial Nitritation Anammox Technology Over Conventional Nitrification Denitrification for the Treatment of Sidestream Liquor at Cape Flats WWTP
… Hydrolysis Process (THP)+AD) at Cape Flats WWTP in South Africa. The study focused on comparing a conventional nitrification denitrification (Modified Ludzack-Ettinger (MLE) configuration) with a novel partial nitritation/ anammox (PN/A) process. The sidestream liquor was characterised by …
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Life-cycle assessment of wastewater treatment plants
… 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 transportation. However, the …
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Measurement of composition of organic constituents of municipal wastewater for plant-wide modelling
… integrating different models into a plant-wide WWTP simulation model. Increasing pressure towards the optimisation of water treatment systems have prompted investigation into integrated WWTP modelling. The use of different state variables in WWTP unit operation models has meant that modelling …
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Wastewater-based Surveillance for Hepatitis A and C in an Inflow- and Infiltration-Impacted Rural System
… 2025) at the wastewater treatment plant (WWTP) influent and five up-sewershed sites. In-situ testing of physicochemical parameters (pH, conductivity, dissolved oxygen, temperature) was done immediately after sample collection. Daily precipitation, daily temperature, and daily WWTP influent …
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OXYHYH20-Integrated Renewable Hydrogen and Oxygen Production for Reduced Emissions in Wastewater Treatment Plant Operations
… plants near or at wastewater treatment plants (WWTP) to reduce the energy required to treat sewage and the related greenhouse gases emissions.<br/><br/>A 3.56 litre laboratory scale sequential batch reactor (SBR) using electrolytic oxygen was operated with Food to Microorganism (F/M) ratios from …
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Development of a plant-wide steady-state wastewater treatment plant design and analysis program
… processes in a wastewater treatment plant (WWTP). This is done in order to save time and money and to improve the understanding of the behaviour of the treatment system. There are two categories of models in wastewater (WW) treatments, steady-state and dynamic models. (i) Dynamic models …
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Genomics-Based Characterization of the Microbial Community and Plasmidome of the Regina Wastewater Treatment Facility and the Surrounding Aquatic Environment
… Most large-scale wastewater treatment plants (WWTPs) remove contaminants from wastewater using the activated sludge process, wherein wastewater is mixed with a flocculent slurry of microorganisms that use these contaminants for the production of energy or increasing microbial biomass. The …
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Pharmaceutical occurrence, distribution and degradation in rural wastewaters and surface waters in Scotland
… within wastewater treatment plants (WWTPs) may results in these compounds (and their transformation products (TPs) and metabolites) entering surface water. Knowledge gaps exist on pharmaceutical presence and potential effects in rural regions (e.g., Scotland’s Highlands and Islands), …
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Full-scale trials of external nitrification on plastic media nitrifying trickling filter
… South Africa, many wastewater treatment plants (WWTP) still make us of their rock filled trickling filters. Instead of using them for organics removal and nitrification, there is growing interest in integrating them with biological excess P removal activated sludge (BEPRAS) systems in an external …
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Impact of a Barrier on Transport of Particles and Aerosolization of Viruses at a Wastewater Treatment Plant
… from a local wastewater treatment plant (WWTP) in both water and air samples at two locations within the WWTP (influent and aeration basin). We found that crAssphage, a fecal indicator, was quantifiable in most air and water samples, but was not detected in control samples. SARS-CoV-2 N2 …
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Impact of Wastewater Effluent on Surface Water Resistomes in a Small Lower-Income Community with Deteriorated Sewage Infrastructure
… microbial density, wastewater treatment plants (WWTPs) are hypothetical hotspots for the evolution and dissemination of AMR, but also function as a crucial checkpoint for restricting discharge of resistant bacteria, ARGs, and other pollutants into the environment. In this study, we evaluated the …
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Advancing Monitoring and Mitigation of Antibiotic Resistance in Wastewater Treatment Plants and Water Reuse Systems
Wastewater treatment plants (WWTPs) receive a confluence of sewage containing antibiotics, antibiotic resistant bacteria, antibiotic resistance genes (ARGs), and pathogens, thus serving as key point of interest for the surveillance of antibiotic resistance (AR) dissemination. This thesis advances …
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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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