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 9 of 9 for “"Municipal effluent"”.
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Boundary modeling of saturated flow during steady application of municipal effluent in a subsurface irrigation and drainage field
… to analyze the subsurface flow of treated sewage effluent from a subirrigation line to a subsurface drain line. This type of flow exists at the wastewater treatment facility at Tuscola, Illinois, where it is used to augment a central-pivot sprinkler system of wastewater treatment.
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Laboratory and field studies of cadmium effects on Hyalella azteca in effluent dominated systems.
… were performed with cadmium and final treated municipal effluent in the laboratory and at the University of North Texas Stream Research Facility. Further laboratory testing in reconstituted hard water was also conducted. Endpoints evaluated include survival, growth, reproduction, and Cd body …
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Alternative approaches for monitoring aquatic ecosystems: a study on the effects of municipal sewage effluent on biota in the South Saskatchewan River
… enrichment and contaminant toxicity from treated municipal sewage effluent were conducted on biota from the South Saskatchewan River through field monitoring and artificial stream experimentation. Field studies indicated that primary productivity was stimulated by nutrient enrichment, however, …
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The equilibria and kinetics of certain ion exchange systems
… relatively low total dissolved salt content is municipal effluent. This has been successfully desalinated using continuous countercurrent ion exchange systems, the design and structure of which depend largely on the resin types used, and in particular on their equilibrium and kinetic properties. …
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The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process
… receive up to 90 of their 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 …
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The COD/VSS ratio of the volatile solids in the activated sludge process
… age at 12°C and 20°C treating a raw domestic effluent were operated and tested. These experiments indicated a slight increase in the COD/VSS ratio at a 3 day sludge age at 12°C (relative to the other units) but insufficient to explain the discrepancies in the COD balances observed by Dold et …
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Assessment of the Efficacy of a Constructed Wetland to Reduce or Remove Wastewater Effluent Estrogenicity and Toxicity Using Biomarkers in Male Fathead Minnows (Pimephales Promelas Rafinesque, 1820)
… was used to assess estrogenicity of a local municipal effluent. Vitellogenin induction in male P. promelas increased in frequency and magnitude with increased exposure duration and was greater ("=0.05) than controls after 2 and 3 weeks of exposure. The level of vitellogenesis induced by …
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Ecotoxicological Investigations in Effluent-Dominated Stream Mesocosms
… was designed to examine contaminant impacts on effluent-dominated stream ecosystems. Stream mesocosms, fed municipal effluent from the City of Denton, TX, Pecan Creek Water Reclamation Plant (PCWRP), were treated with 0, 15 or 140 µg/L cadmium for a 10-day study in August 2000. Laboratory …