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OLS Field Name OLS Field Data
Main Title Biological Treatability of KRW Energy Systems Gasifier PDU (Process Development Unit) Wastewaters.
Author Castaldi, F. J. ;
CORP Author Radian Corp., Austin, TX.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1985
Report Number EPA-68-02-3137; EPA/600/7-85/019;
Stock Number PB85-199685
Additional Subjects Water pollution control ; Coal gasification ; Oxidation ; Activated sludge process ; Nitrification ; Bacteria ; Industrial waste treatment ; Biological industrial waste treatment
Library Call Number Additional Info Location Last
NTIS  PB85-199685 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 186p
Abstract The report gives results of bench-scale biological treatability tests with wastewaters produced from the KRW Energy Systems gasifier process development unit (KRW-PDU). Goals of the tests were to assess the biotreatability of these aqueous wastes and to develop data for correlations to establish a basis for designing a biooxidation process. An autotrophic activated sludge process was developed that utilized a mixed culture of nitrifying and sulfur-oxidizing bacteria for simultaneous thiocyanate biodegradation and nitrification. Elevated concentrations of chloride, fluoride, and boron in experimental wastewaters did not inhibit either nitrifying or sulfur-oxidizing bacteria in the activated sludge process. However, heavy metals were concentrated in the activated sludges, thought to be a consequence of the long sludge ages of the experimental process.
NTIS Title Notes Final rept. Jun 83-Dec 84.
PUB Date Free Form May 85
Category Codes 13B; 6M; 68D; 57K
NTIS Prices PC A09/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 518921757
Origin NTIS
Type CAT