Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Full-scale demonstration of open tank ozygen activated sludge treatment
Author Pearlman, Stephen R. ; Fullerton, Donald G.
Other Authors
Author Title of a Work
Fullerton, Donald G.
CORP Author Metropolitan Denver Sewage Disposal District No. 1, CO.;Municipal Environmental Research Lab., Cincinnati, OH. Wastewater Research Div.
Publisher Environmental Protection Agency, Office of Research and Development, {Office of Air, Land, and Water Use}, Municipal Environmental Research Laboratory ;
Year Published 1979
Report Number EPA/600/2-79/012; EPA-S-803910
Stock Number PB-296 904
OCLC Number 53915285
Subjects Sewage--Purification--Activated sludge process
Additional Subjects Activated sludge process ; Sewage treatment ; Oxygenation ; Aeration ; Pilot plants ; Performance evaluation ; Sedimentation tanks ; Design criteria ; Process charting ; Upgrading ; Monitoring ; Diffusion ; Biochemical oxygen demand ; Clarification ; Aeration tanks ; Settling ; Aerobic processes ; Microorganisms control(Sewage) ; Colorado ; Energy consumption ; Open tank systems ; Denver(Colorado) ; Sludge treatment ; Rotating active diffusers
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB-296 904 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 x, 118 p. : ill. ; 28 cm.
This report presents an operating summary of a full-scale demonstration of the FMC open tank pure oxygen (FMC O2) activated sludge system, conducted at the facilities of the Metropolitan Denver Sewage Disposal District No. 1 (Metro) in Denver, Colorado. The system was operated over a period of 15 mo at both steady state and diurnal flow rates ranging from 22,700 cu m/day (6 mgd) to 53,000 cu m/day (14 mgd), with average F/M loadings varying between 0.49 and 1.14 kg BOD/day/kg MLVSS and clarifier overflow rates ranging from 16.5 to 32.2 cu m/day/sq m (406 to 791 gpd/sq ft). The overall performance of the system was dictated in large part by the quantity of filamentous organisms in the activated sludge, and the investigation of these organisms, with attempts to control or eliminate them, was an ongoing activity during much of the demonstration. The system was evaluated as to oxygen transfer efficiency and oxygen consumption. Further, it was compared to the Metro diffused air system running in parallel with the demonstration system on the basis of sludge production and power requirements. Comparison of sludge settleabilities was made between these two systems and a closed tank pure oxygen system (UNOX) also in operation at Metro. In addition to allowing an evaluation of the FMC O2 system as a whole, the demonstration provided an opportunity to evaluate various component equipment items as to their reliability and performance.
Grant no. S803910. May 1979. Includes bibliographical references. Microfiche.