Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Removal of lagoon effluent suspended solids by a slow-rock filter /
Author O'Brien, Walter J. ; McKinney, Ross E.
Other Authors
Author Title of a Work
McKinney, Ross E.
CORP Author Kansas Univ., Lawrence. Dept. of Civil Engineering.;Municipal Environmental Research Lab., Cincinnati, OH.
Publisher Environmental Protection Agency, Office of Research and Development, Municipal Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1979
Report Number EPA/600/2-79/011; EPA-68-03-0280
Stock Number PB-297 454
Subjects Sewage lagoons. ; Sewage--Purification--Filtration. ; Effluent quality.
Additional Subjects Water pollution control ; Lagoons(Ponds) ; Filtration ; Algae ; Oxygen ; Dissolved gases ; Concentration(Composition) ; Biochemical oxygen demand ; Chlorophylls ; Commercial buildings ; Residential buildings ; Industrial waste treatment ; Performance evaluation ; Rock filters
Library Call Number Additional Info Location Last
NTIS  PB-297 454 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation viii, 109 pages : illustrations ; 28 cm.
The objective of this project was to examine the removal of algae cells and other suspended solids contained in the effluents from facultative lagoons treating domestic wastewaters by means of rock filters. Two rock filters were constructed and operational over a 16 month period to determine the operating characteristics of the rock filter systems. Both rock filters removed essentially the same amount of suspended solids but the small rock filter clogged after 11 months operation. Biological activity within the rock filter was noted by the changes in dissolved oxygen concentrations. The data indicated that it was not possible to obtain effluent suspended solids concentrations below the desired 30 mg/l for municipal wastewater treatment systems. The BOD5 concentrations in the effluents from the rock filters were consistently below the 30 mg/l effluent criteria.
Contract no. 68-03-0280. June 1979. Includes bibliographical references. Microfiche.