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 100 for “"sewage treatment"”.
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Simulation and optimization of a package sewage treatment plant
… and 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 …
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Air diffusion in the activated sludge process of sewage treatment
Made available in DSpace on 2016-11-09T23:47:16Z (GMT). No. of bitstreams: 2 5997918.pdf: 4944231 bytes, checksum: f9c73842c43441ba0bebd6fd49669b27 (MD5) license.txt: 4183 bytes, checksum: 1dcc2037833d76bede73d5717587543b (MD5) Previous issue date: 1917
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The effect of sludge age on activated sludge sewage treatment
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Civil and Sanitary Engineering, 1949.
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The development of a three phase plant-wide mathematical model for sewage treatment
… for the design and operation of wastewater treatment plants, for minimization of energy consumption and cost while maximizing nutrient recovery and improving effluent quality, the purpose of this project is to develop three phase (aqueous-gas-solid) steady state and dynamic mathematical …
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An investigation of the operating characteristics and efficiency of a small sewage treatment plant
… primarily a study of the performance of the new sewage treatment plant serving Blacksburg, Virginia and V. P. I. during the initial period of operation, 1948-1949. This plant, designed for a sewage flow of one million gallons per day, provides primary and secondary treatment. Standard analyses …
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The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process
… phosphorus input from effluents discharged by sewage treatment works (Pretorius, 1983). The phosphorus content of domestic sewage originates from two main sources, namely human waste {±60) and detergents {±40) (Heynike and Wiechers, 1986). There is an argument for a ban on phosphate in …
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Investigating the occurrence and fate of anticancer drugs in sewage treatment works and the wider aquatic environment
… on their consumption and fate during wastewater treatment; to undertake a national and regional survey of two commonly used anticancer drugs, cyclophosphamide (CP) and ifosfamide (IF) in wastewater and river water; to assess the performance of a river-based chemical fate model through comparisons …
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Privatization of sewage treatment in China's coast cities : environmental policies, international experience, and policy implications for Guangzhou
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1996.
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A technological, economic and social exploration of phosphate recovery from centralised sewage treatment in a transitioning economy context
… food security. In the past, waste water treatment works (WWTW) typically installed effluent polishing technologies to eliminate phosphate and lower concentrations of both nitrogen and phosphate to below regulatory levels. More recently, there has been a global shift towards treating waste …
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Effects of sewage treatment plant effluents on mollusks and fish of the Clinch River in Tazewell County, Virginia
… assemblages, including many endemic species. New sewage treatment plants (STP's) have recently been constructed along the Clinch River in Virginia, raising concern because of the disappearance of mollusks below existing STP's. Field and laboratory studies were conducted to determine mollusk and …
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A Comparison of Some Limnological Changes Caused By The Brookings Sewage Treatment Plant On Six-mile Creek and the Big Sioux River
… there was an abundant supply of fresh water, sewage disposal became a growing problem. The easiest way to get rid of the sewage was to dump it into the stream below the town and let the current wash it away. This practice is still continued, even in some modern cities. (See more in Text)
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Extension and verification of the PWM_SA model to incorporate SANI-specific bioprocesses using experimental data from the Hong Kong SANI saline sewage treatment pilot plant.
… system, proven effective for saline wastewater treatment, offers a sustainable approach to conserve fresh water and enhance resilience. This study extends the Plant Wide Model for South Africa (PWM_SA) by integrating SANI-specific bioprocesses to evaluate its applicability in ad dressing these …
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