Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title State of the technology, semi-automatic control of activated sludge treatment plants /
Author Nagel, Carl A.
CORP Author Los Angeles County Sanitation District, Whittier, Calif.;Municipal Environmental Research Lab., Cincinnati, Ohio. Wastewater Research Div.
Publisher Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-600/2-75-058; EPA-R-803055; EPA-ROAP-21ASC
Stock Number PB-249 067
OCLC Number 02051639
Subjects Sewage disposal plants--Automation. ; Sewage--Purification--Automation. ; Sewage--Purification--Activated sludge process.
Additional Subjects Activated sludge process ; Automatic control equipment ; Sewage treatment ; Data processing ; Waste water ; Design ; Pumping ; Density(Mass/volume) ; Maintenance ; Process control ; Requirements ; Computer programming ; California ; Los Angeles County(California) ; Computer applications
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-75-058 Headquarters Library/Washington,DC 04/11/2011
EJBD  EPA 600-2-75-058 c.1 Headquarters Library/Washington,DC 02/03/2014
ELBD  EPA 600-2-75-058 AWBERC Library/Cincinnati,OH 07/30/1999
ESAD  EPA 600-2-75-058 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-249 067 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation x, 202 p. : ill. ; 27 cm.
The report documents the theory, design and operation of continuous on-line instrumentation currently in use by the County Sanitation Districts of Los Angeles County California and further describes computer applications which provide daily operational calculations. Instrumentation sections include Water Level Control of Influent Pumping, Density Control of Primary Sludge Pumping, and Process Air, Return Sludge and Waste Sludge Control in Activated Sludge Plants. Theory, design, operation and maintenance characteristics, maintenance requirements, and results are presented for each system. A computer application system is described which provides daily operational parameters to the operators and prepares monthly summary of operations reports.
"Contract no. R83055-01-0."