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 375 for “"Treatment plant"”.
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Effects of storage on water treatment plant sludges
… on the iron, manganese, and TOC removal of water treatment plant (WTP) clarifiers and on the dewatering characteristics of sludge were examined. The use of chlorine dioxide as a preoxidant to retard observed detrimental effects was also investigated. Sludge samples that were stored over a period …
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Iron recovery from a representative water treatment plant sludge
Water treatment plant sludge disposal has become a timely problem to consider. While many methods of sludge treatment and disposal have been suggested, coagulant recovery may prove to be the most economical. This investigation was concerned with recovery of iron coagulant by chemical addition. …
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Optimal control of a biological waste-water treatment plant
… model of a biological waste cleaning plant is created and investigated. The model is described by a nonlinear system of two differential equations with one bounded control. An optimal control problem of minimizing concentration of contaminated water at terminal time T is stated and …
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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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Simulation and optimization of a package sewage treatment plant
… optimize an Aquatair Model P-3 package sewage treatment plant for which operating data from the National Sanitation Foundation was available. The treatment plant consists essentially of a plastic medium trickling filter mounted overtop of a complete-mix activated sludge (CMAS) tank; the unit …
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Biofiltration for Control of H2S from Wastewater Treatment Plant Gases
… 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, hydrogen …
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Assessment of sludge management options in a waste water treatment plant
… impacts of Cadagua operated wastewater treatment plants. The project uses the LCA software GaBi and focuses on La Gavia Wastewater Treatment Plant in Madrid. This thesis analyzes three sludge management options that La Gavia could have implemented: (1) cogeneration and incineration, (2) …
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Application of bioaugmentation to improve nitrification at the Gammams Wastewater Treatment Plant
… 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 ammonia. This …
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Assessment of ultraviolet light disinfection efficiency of advanced wastewater treatment plant 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 than 2.2 …
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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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Optimization of the coagulation process at the Carvins Cove Water Treatment Plant
The overall process of water treatment is a compilation of various unit processes including: aeration, disinfection, the mixing of chemicals, flocculation, sedimentation, and filtration. The arrangement of these various unit processes into different treatment configurations provided the basis for …
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Natural and synthetic estrogens in wastewater treatment plant effluent and the coastal ocean
… to potent free forms by bacteria in wastewater treatment plants and receiving waters. And halogenated estrogens, produced during wastewater disinfection, are only slightly less potent than free estrogens but much more likely to bioaccumulate. We have developed a tandem mass spectrometry method …
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Using mathematical models to track phosphorus in a full-scale wastewater treatment plant
… 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 evaluate and …
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