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Main Title Biological treatment of high strength petrochemical wastewater /
Author Humphrey, William J., ; Witt, Enrique R.
Other Authors
Author Title of a Work
Witt, Enrique R.
CORP Author Celanese Chemical Co., Inc., Corpus Christi, TX. Technical Center.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development U.S. Environmental Protection Agency, Available from National Technical Information Service.
Year Published 1979
Report Number EPA-600/2-79-172; EPA-12020-EPH
Stock Number PB80-100456
OCLC Number 05723018
Subjects Water--Purification--Biological treatment ; Petroleum chemicals industry--Waste disposal
Additional Subjects Water pollution control ; Petrochemical industry ; Activated sludge process ; Industrial waste treatment ; Chlorides ; Organic nitrates ; Amines ; Anaerobic processes ; Aerobic processes ; Pilot plants ; Concentration(Composition) ; Chemical oxygen demand ; Performance evaluation ; Aeration ; Biological industrial waste treatment ; Denitrification
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  TD475.H85 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-2-79-172 c.1-2 Headquarters Library/Washington,DC 08/29/2011
EKBD  EPA-600/2-79-172 Research Triangle Park Library/RTP, NC 07/04/2003
ELBD ARCHIVE EPA 600-2-79-172 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
EMBD  EPA/600/2-79/172 NRMRL/GWERD Library/Ada,OK 10/27/1995
ERAD  EPA 600/2-79-172 Region 9 Library/San Francisco,CA 10/01/2012
NTIS  PB80-100456 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 100 pages : illustrations ; 28 cm.
The biological treatment of a complex petrochemical wastewater containing high concentrations of organic chlorides, nitrates, and amines was initially studied using a sequence of anaerobic methanogenesis and oxygen activated sludge. Bench-scale and pilot-plant treatability studies were conducted using various composite samples and process wastewater blends. The results of preliminary studies indicated the need for stream segregation and waste reduction programs at the petrochemical plant. Segregation of components of the combined plant waste stream was required to eliminate nonbiodegradable materials and pretreatment minimized the concentration of substances which were toxic or inhibitory to biological treatment. Nitrates inhibited methanogenesis in the anaerobic system but quantitative removal of nitrates was accomplished. Only partial removal of chemical oxygen demand (COD) was achieved during anaerobic denitrification because of the relatively low nitrate/COD ratio. Anerobic methanogenic treatment also was unsuccessful in reducing the COD concentration to any great extent, even after pretreatment by anaerobic denitrification. The activated sludge system was effective in removing the biodegradable portion expressed as biochemical oxygen demand (BOD) of the pretreated combined wastewater stream; but the yellow color of the effluent was unacceptably dark. The activated sludge system performed equally well when high purity oxygen, or air was used for aeration.
"Celanese Chemical Company, Inc., Technical Center"