Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Extended-Aeration Plants and Intermittent Watercourses.
Author Morri, Grover L. ; Van Den Ber, Lowell ; Cul, Gordon L. ; Geckle, Jack R. ; Porge, Ralph ;
CORP Author Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio.
Year Published 1963
Report Number PHS-Pub-999-WP-8;
Stock Number PB-168 979
Additional Subjects ( Water pollution ; Public health) ; ( Sewage ; Water pollution) ; ( Hydrology ; Water pollution) ; Degradation ; Solids ; Wastes(Sanitary engineering) ; Algae ; Aquatic animals ; Inland waterways ; Tables ; Costs ;
Library Call Number Additional Info Location Last
NTIS  PB-168 979 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 50p
Two basic extended-aeration plants that discharge effluents to intermittent watercourses were studied during various seasons of the year. Except for periods of slug discharges, the plants produced effluents with a BOD of less than 35 mg/1 and suspended solids less than 30 mg/1. Plant efficiency was directly related to the amount of solids lost as a result of fluctuations in raw waste flow or as a result of denitrification and rising of solids in the sedimentation basin and consequent overflow. With the addition of sludge-wasting facilities of effluent-polishing units, these plants would be capable of efficient continuous operation for long periods. Periodic heavy discharges of suspended solids formed sludge deposits in the two streams receiving effluent from the plants. Counts of benthic forms above and below the plant outfalls and at sampling points downstream clearly showed the effect of these deposits. Algal growths were profuse in unshaded portions of the streams, indicating high nutrient levels. (Author)