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Showing 1 to 9 of 9 for “"sedimentation basin"”.
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Benthic Macroinvertebrate Susceptibility to Trout Farm Effluents
… to water taken from a spring, effluent above a sedimentation basin, and effluent below a sedimentation basin. On-site mesocosms were constructed to expose previously colonized artificial substrates to the same treatments as the laboratory tests. Flat-headed mayflies were also collected from a …
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Uso de traçadores na modelagem de unidades de aeração e decantação em estação de tratamento de esgotos
… the inlet of two aeration tanks and a secondary sedimentation basin of a conventional activated sludge sewage treatment plant. Amidorhodamine G Extra and Bromine-82 were used as fluorescent and radioactive tracers. The hydrodynamic behaviour of both units were analysed through the comparison of …
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Tracer studies of inlet baffle performance in a horizontal rectangular settling tank model
Inlet baffles in a sedimentation basin should distribute the incoming flow uniformly over the inlet zone. This allows the flow to pass through the tank in a plug flow fashion, giving the solids a more quiescent condition to separate from the liquid. It was the object of the investigation to …
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Field and laboratory studies concerning the detection of enteric viruses in either settled or disinfected secondary sewage
… times in the model system studies of a final sedimentation basin and chlorine contact chamber were based on Rhodamine WT dye studies of plant-scale units. These studies suggested that 98.5 to 100 percent of the enteric viruses contained in the actual plant effluent would be removed or …
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Treatment of Rainbow Trout <i>(Oncorhynchus mykiss)</i> Raceway Effluent Using Baffled Sedimentation and Artificial Substrates and Characterization of Nutrient Leaching Rates from Settled Rainbow Trout (Oncorhynchus mykiss) Sludge
… mykiss) Raceway Effluent Using Baffled Sedimentation and Artificial Substrates. The treatment performance of a 6 m wide by 67 m long by 0.8 m deep, baffled sedimentation basin receiving rainbow trout <i>(Oncorhynchus mykiss)</i> raceway effluent was evaluated with and without the …
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Evaluation and Enhancement of the Performance of Drop Inlets
… U.S. Highway 50 in the Clear Creek Drainage Basin near Carson City, Nevada which are maintained by the Nevada Department of Transportation (NDOT). The maintenance requirements can be significant since large quantities of traction sand are routinely applied to this section of highway during …
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Impacts of Sludge Volume and Sludge Age on Disinfection By-Product Formation in a Full-Scale Water Treatment Facility
… and haloacetic acids at both ends of the sedimentation process to evaluate formation over the length of the basin. Sludge volume and other important water quality parameters were also measured at the time of sample collection. Statistical analyses were used to analyze contributions from …
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Evaluating the Effectiveness of the Skimmer Versus the Perforated Riser in Sedimentation Basins
… substantial environmental and economic impacts. Sedimentation basins are a remediation technique used to limit sediment transport from earth disturbance activities. Retention efficiency is used as a measure of a sedimentation basin's effectiveness. Several factors influence retention efficiency …
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Evaluation of Constructed Wetlands and Pretreatment Options For the Treatment of Flow-through Trout Farm Effluent
… of studied water quality parameters by means of sedimentation or microscreen filtration (80 ?m mesh). HSSF wetlands removed 69% of influent TSS, 24% of influent TP, and reduced turbidity by 66%. The removal of organic matter within the wetlands, as measured by BOD5, COD, and TOC was 62%, 50%, and …