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 198 for “"wastewater treatment plant"”.
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Automated life cycle inventory for typical wastewater treatment plant
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Biofiltration for Control of H2S from Wastewater Treatment Plant Gases
… the headworks and a primary clarifier of a local Wastewater Treatment Plant. The contaminated gas stream is distributed upward through 1,718 m3 of filter material. With a flow rate varying between 3,503.0 m3/h and 4,587.3 m3/h and hydrogen sulfide inlet concentrations between 0.8 and 146 ppm, …
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Application of bioaugmentation to improve nitrification at the Gammams Wastewater Treatment Plant
… but the greater Nation at large. The Gammams Wastewater Treatment Plant, which is responsible for treating domestic and some industrial wastewater, regularly experiences toxic pluses that result in the inhibition of nitrification in the activated sludge process, leading to poor removal of …
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Assessment of ultraviolet light disinfection efficiency of advanced wastewater treatment plant effluent
… filter effluent from the Clark County Advanced Wastewater Treatment Plant has shown {dollar}>{dollar}4-log removal of seeded MS-2 coliphage at UV dosages of 80-100 milliwatt-seconds per square centimeter (mW-s/cm{dollar}\sp2{dollar}), and consistent removal of fecal and total coliforms to less …
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Balancing ammonia and alkalinity for nitrification at Walnut Creek Wastewater Treatment Plant
The Walnut Creek Wastewater Treatment Plant in Austin, Texas, has recently experienced increasing influent ammonia concentrations. Nitrification, the biological process used to treat ammonia, consumes alkalinity, which makes it difficult to properly treat ammonia while still maintaining the pH …
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A Sustainable Bio-Solids Management For The Grand Forks Wastewater Treatment Plant
<p>The Grand Forks Waste Water Treatment Plant (GFWWTP) is currently sending its waste activated sludge (WAS) from the activated sludge treatment process to an existing on-site wastewater treatment lagoon which has been in operation since 2003. The plant produces approximately 65,000 gallons of WAS …
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Dynamic data management and modeling in a lagoon based wastewater treatment plant
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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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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Natural and synthetic estrogens in wastewater treatment plant effluent and the coastal ocean
… so-called “free” estrogen concentrations in wastewater effluents, rivers, and lakes. Yet, to our knowledge, no studies have characterized the broader range of estrogens that includes free, conjugated, and halogenated forms. Conjugated estrogens are important because they can be easily …
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Using mathematical models to track phosphorus in a full-scale wastewater treatment plant
… recovery of nutrients from waste types fed to wastewater treatment systems, to forms that are usable and possibly marketable, while ensuring maintenance of good effluent quality from the plant. To address these challenges, the plant wide model (PWM_SA) of Ikumi et al. (2015) was utilized to …
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Natural and synthetic estrogens in wastewater treatment plant effuent and the coastal ocean
… so-called "free" estrogen concentrations in wastewater effluents, rivers, and lakes. Yet, to our knowledge, no studies have characterized the broader range of estrogens that includes free, conjugated, and halogenated forms. Conjugated estrogens are important because they can be easily …
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Perceived Risk and the Siting of a Controversial Wastewater Treatment Plant in Central Texas
… place between March 2008 and October 2009. The plant, designed to serve the sewer needs of distant cities, was planned without the participation of the residents of the creek community. After being notified of the permit application, they organized to protest the issuance of the permit which …
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The biological removal of phosphorus at the Clark County Sanitation District wastewater treatment plant
… of the Clark County Sanitation District (CCSD) wastewater treatment plant. Several parameters that influence EBPR were investigated, including wastewater composition: (e.g. BOD, nitrate, nitrite, ammonia, Total P, Ortho-P, alkalinity, pH), dissolved oxygen levels, oxidation reduction potential, …
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Determination Of Optimum Polymer Dose For Grand Forks Wastewater Treatment Plant Lagoon Sludge Dewatering
<p>The Grand Forks Waste Water Treatment Plant (GFWWTP) is currently sending its waste activated sludge (WAS) from the activated sludge treatment process to an existing on-site wastewater treatment lagoon which has been in operation since 2003. The plant produces approximately 65,000 gallons of WAS …
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Development of a plant-wide steady-state wastewater treatment plant design and analysis program
… the biological and physical 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 …
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Exhaust gas emissions from a prototype scrap tire incinerator/wastewater treatment plant sludge dryer
… from an experimental scrap tire incinerator/wastewater treatment plant sludge dryer. This report recounts the techniques used and the results obtained during this testing. The Virginia Department of Environmental Quality supplied a list of pollutants of permitting interest which included a …
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COMMUNITY ANALYSIS OF A UNIQUE FULL-SCALE WASTEWATER TREATMENT PLANT AS REVEALED BY 454-PYROSEQUENCING
… is one of the most commonly applied biological treatment processes for wastewater treatment. The microorganisms grown in activated sludge systems are responsible for the removal and transformation of wastewater contaminants. These bacterial populations are sensitive to wastewater …
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OXYHYH20-Integrated Renewable Hydrogen and Oxygen Production for Reduced Emissions in Wastewater Treatment Plant Operations
Wastewater treatment is an energy intensive process responsible for 3 percent of global Greenhouse Gases emissions which will increase with growing population and more stringent discharge regulations. Water companies have a high demand for energy for pumping, mixing, aeration and transport. This …
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