Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 9

OLS Field Name OLS Field Data
Main Title Study of the Performance of Dowpac HCS When Applied to the Treatment of Settled Sewage. The City of Battle Creek, Michigan.
CORP Author Public Health Service, Washington, D.C.
Year Published 1958
Stock Number PB-229 091
Additional Subjects Sewage treatment ; Trickling filtration ; Performance evaluation ; Battle Creek(Michigan)
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-229 091 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 159p
Abstract
A cooperative project to study the performance of Dowpac HCS, a gas-liquid contact tower packing, as a biological slime attachment surface for secondary treatment of sewage at the City of Battle Creek, Michigan, was initiated in December, 1955. The report contains a summary of data obtained and calculations based upon the data. An equation was developed from the data relating performance as a function of depth and the hydraulic application rate. From the available data, it was not possible to distinguish a relationship between performance and organic application rate. Indications were that within the narrow range of organic application rates studied, variations resulting from daily fluctuations in waste strength, efficiency was independent of organic loading.