Record Display for the EPA National Library Catalog

RECORD NUMBER: 147 OF 158

OLS Field Name OLS Field Data
Main Title Upgrading Existing Wastewater Treatment Plants. Case Histories of Biological Process Modifications.
CORP Author Hazen and Sawyer, New York.;Environmental Protection Agency, Cincinnati, Ohio. Office of Technology Transfer.
Year Published 1972
Stock Number PB-258 819
Additional Subjects Sewage treatment ; Activated sludge process ; Trickling filters ; Upgrading ; Microorganism control(Sewage treatment) ; Clarification ; Aeration ; Performance ; Specifications ; North Carolina ; New York ; California ; Sewage treatment plants
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-258 819 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 57p
Abstract
The case histories described in this report relate to upgrading the performance of activated sludge and trickling filter plants through modification to the biological processes. In these processes the biochemical reaction rates depend on the concentration of reactants (wastes) and of the appropriate microorganisms capable of feeding on the wastes.