Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Optimizing a petrochemical waste bio-oxidation system through automation /
Other Authors
Author Title of a Work
Zeitoun, M. A.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency : For sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington,
Year Published 1975
Report Number EPA-660/2-75-021; EPA-S-800766; EPA-ROAP-21AZP-36
Stock Number PB-247 160
OCLC Number 02017236
Subjects Petroleum chemicals industry--Waste disposal. ; Sewage disposal plants. ; Sewage--Purification--Activated sludge process.
Additional Subjects Sewage treatment ; Industrial waste treatment ; Automatic control ; Activated sludge process ; Carbon ; Nutrients ; Oxidation ; Biodeterioration ; Toxicity ; Detectors ; Pilot plants ; Bacteria ; pH ; Optimization ; Petrochemical industry ; Biological industrial waste treatment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-75-021 Headquarters Library/Washington,DC 05/07/2012
EJBD  EPA 600-2-75-021 Headquarters Library/Washington,DC 12/23/2014
EMBD  EPA/660/2-75/021 NRMRL/GWERD Library/Ada,OK 09/29/1995
ESBD  EPA-660-2-75-021 CPHEA/PESD Library/Corvallis,OR 03/17/1995
NTIS  PB-247 160 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, 200 p. : ill. ; 27 cm.
Systems were developed to control the critical parameters of the activated sludge process to achieve reliable, high quality effluent. The waste water from a petrochemical plant contained ethylene glycol and was sometimes saline. An automated sampling system, sampling feed and homogenized mixed liquor, monitored the total carbon in both samples. Nutrients were added in proportion to the total carbon in the feed, thus maintaining low residual nutrients in the effluent. The sludge recycle flow rate was controlled by a food to microorganisms signal, measured as the ratio of total carbon in the feed to that in the mixed liquor. Toxic or inhibitory effects of the feed were measured by a Biological Inhibitor Detector, an instrument which measures the oxygen uptake of standard solutions before and after exposure of a bacteria sample to a feed sample and calculates an activity ratio. The use of the instrument as an upstream sensing device was demonstrated as toxic substances were added to the feed. The developed on-line control systems are applicable to municipal, industrial or combined treatment plants. A bibliography of 63 references is included.
"Grant No. S800 766; Program Element 1BBO36; ROAP/Task No. 21 AZP-36." "June 1975." Includes bibliographical references (p. 155-159).