Record Display for the EPA National Library Catalog

RECORD NUMBER: 368 OF 751

OLS Field Name OLS Field Data
Main Title Laboratory Evaluation of a Method for Enhancing the Kinetics of Activated Sludge Treatment Plants.
Author Sedita., S. J. ;
CORP Author Houston Research Inst., Inc., Tex.;Municipal Environmental Research Lab., Cincinnati, Ohio.
Year Published 1975
Report Number EPA-68-01-0042; EPA-ROAP-21ASR; EPA/600/2-75/061;
Stock Number PB-245 683
Additional Subjects Sewage treatment ; Activated sludge process ; Bacterial extracts ; Performance evaluation ; Waste water ; Chlorine organic compounds ; Phenols ; Sulfonates ; Disintegration ; Acetic acid ; Additives ; Impacts ; Ethylene glycol ; Removal ; Efficiency ; Oxidation ; Phenol/dichloro ; Acetic acid/ethylene-nitrilo-tri ; Linear alkyl sulfonates ; Acetic acid/nitrilo-tri
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-245 683 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 82p
Abstract
Activated sludge from the Bellaire, Texas, plant was acclimated to five different test compounds, 2,4-Dichlorophenol, Linear Alkylate Sulfonates, Nitrilotriacetic Acid, Ethylene dinitrilotetracetic Acid, and Ethylene glycol. The test compounds were then incorporated into wastewater influent to the Bellaire plant and fed to the acclimated sludge which had been mechanically disrupted by sonic energy, to varying degrees. Cell disruption was followed by TOC increase and cell number decrease, and on the average resulted in a significant reduction in cell numbers both at 20 minutes and at one hour. The use of disrupted cells may have some potential in waste treatment as demonstrated by substrate removal with sonically disrupted sludge or the supernate from sonically disrupted sludge.