Record Display for the EPA National Library Catalog

RECORD NUMBER: 13 OF 445

OLS Field Name OLS Field Data
Main Title Aerobic stabilization of waste activated sludge : an experimental investigation /
Author Cohen, David B.
Other Authors
Author Title of a Work
Fullerton, Donald G.
Publisher Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-600/2-75-035; EPA-68-03-0152; EPA-ROAP-21ASD-17
Stock Number PB-246 593
OCLC Number 01979422
Subjects Sewage disposal plants--Pilot plants. ; Sewage--Purification--Activated sludge process.
Additional Subjects Sewage treatment ; Activated sludge process ; Aerobic processes ; Sludge digestion ; Biochemical oxygen demand ; Metabolism ; Design criteria ; Biomass ; Oxygenation ; Dissolved gases ; Performance evaluation ; Cost analysis ; Colorado ; Aeration ; Suspended solids ; Denver(Colorado)
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=10004NSH.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 600/2-75-035 Region 3 Library/Philadelphia, PA 07/03/1997
EJBD ARCHIVE EPA 600-2-75-035 Headquarters Library/Washington,DC 06/11/2012
EJBD  EPA 600-2-75-035 c.1-2 Headquarters Library/Washington,DC 05/14/2013
EKAM  TD756.C63 Region 4 Library/Atlanta,GA 12/17/1999
EKBD  EPA-600/2-75-035 Research Triangle Park Library/RTP, NC 06/13/2003
EMBD  EPA/600/2-75/035 GWERD Library/Ada,OK 02/03/1995
ESAD  EPA 600-2-75-035 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-246 593 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation xii, 175 p. : ill. ; 27 cm.
Abstract
Metro Denver Sewage Disposal District No. 1 (Metro) in 1970 converted excess secondary aerators to aerobic digesters. The plant scale diffused air system was compared with a pilot scale open tank oxygen system using very fine bubble fixed and rotating diffusers. For the air system volatile suspended solids (VSS) reductions ranged between 11.2% and 47.2%. A significant correlation was observed between VSS reduction and detention time-temperature factor. Cold shock eliminated nitrification for a five month period. When invertebrates, particularly rotifers, comprised a significant fraction of the biomass, digestion was maximal. The pollutant concentration in the supernatant from the aerobic digester averaged 10% of that from an anaerobic digester. For the oxygen batch tests, biodegradable VSS digestion rate coefficient k averaged 0.27. No correlation was observed between DO concentration and VSS reduction rates. The temperature of the oxygen digested biomass increased with increased loadings.
Notes
"Contract no. 68-03-0152." Includes bibliographical references (p. 172-173).