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RECORD NUMBER: 24 OF 169

Main Title Destruction by Anaerobic Mesophilic and Thermophilic Digestion of Viruses and Indicator Bacteria Indigenous to Domestic Sludges.
Author Berg, Gerald; Berman, Donald;
CORP Author Environmental Monitoring and Support Lab.-Cincinnati, OH.
Year Published 1980
Report Number EPA-600/J-80-158;
Stock Number PB81-129553
Subjects Indicator species; Viruses; Bacteria; Water pollution; Feces; Streptococcus; Coliform bacteria; Digestion; Destruction; Anaerobic conditions; Sludge; Reprints; Bioindicators; Water pollution control
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB81-129553 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 9p
Abstract In raw sludges and in mesophilically and thermophilically digested anaerobic sludges, large variations in numbers of viruses occurred over narrow ranges of numbers of fecal coliforms, total coliforms, and fecal streptococci, demonstrating that the bacteria are poor quantitative reflectors of the numbers of the viruses detected. Mesophilic and thermophilic digestion of anaerobic sludges destroyed all three indicator bacteria more rapidly than such digestion destroyed the viruses. The relative rates for the destruction of viruses, fecal coliforms, and fecal streptococci in the digested sludges were consistent over the 17-month study. Fecal coliforms were 7 to 8 times more sensitive than the viruses to mesophilic digestion and 9 to 10 times more sensitive to thermophilic digestion. Total coliforms were even more sensitive. The rates at which fecal streptococci were destroyed by mesophilic and thermophilic digestion of anaerobic sludges approached those at which the viruses were destroyed by those processes; this suggested that the rates at which fecal streptococci in sludges are destroyed by those processes may serve as useful indictors for the rates at which viruses in sludges are destroyed by those processes.
Supplementary Notes Pub. in Applied and Environmental Microbiology, v39 n2 p361-368 Feb 80.
NTIS Title Notes Journal article.
Title Annotations Reprint: Destruction by Anaerobic Mesophilic and Thermophilic Digestion of Viruses and Indicator Bacteria Indigenous to Domestic Sludges.
PUB Date Free Form Feb 80
Category Codes 6F; 6M; 68D; 57K
NTIS Prices PC A02/MF A01
Primary Description 600/06
Document Type NT
Control Number 323790082
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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