Record Display for the EPA National Library Catalog


Main Title Toxicity Reduction at Municipal Wastewater Treatment Plants.
Author Neiheisel, T. W. ; Horning, W. B. ; Austern, B. M. ; Bishop, D. F. ; Reed, T. L. ;
CORP Author Environmental Protection Agency, Cincinnati, OH. ;Ohio State Environmental Protection Agency, Columbus.
Year Published 1988
Report Number EPA/600/J-88/072;
Stock Number PB88-250782
Additional Subjects Toxicity ; Industrial wastes ; Nitrification ; Sludge ; Statistical data ; Municipalities ; Sewage treatment ; Activated sludge process ; Minnows ; Survival ; Growth ; Chemical removal(Water treatment)
Library Call Number Additional Info Location Last
NTIS  PB88-250782 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
Treatment plants receiving wastewaters from domestic/commercial sources and receiving wastewater from domestic/commercial plus industrial sources were evaluated to assess toxicity reduction and determine the importance of source. Seven-day renewal fathead minnow survival and growth and Ceriodaphnia survival and reproduction tests were applied to raw wastewater, unchlorinated, chlorinated, and dechlorinated secondary effluents. All plant influents were toxic and all plant effluents showed some residual toxicity. The plant receiving the most toxic influent showed the largest reduction in toxicity and had the least toxic effluents. Toxicity at plants with little industrial wastewater flow was not reduced. Nitrification was reduced at one and a high metals concentration occurred at another plant. Toxicity reduction and industrial wasteflow did not correlate strongly and potential receiving stream impacts were noted.