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Main Title An evaluation of the organochromium content of sewage sludge /
Author Sherman, Paul L. ; Brooks, Joseph J. ; Metcalfe, Leroy ; Hoogheem, Thomas J.
Other Authors
Author Title of a Work
Smith, John H.
CORP Author Monsanto Research Corp., Dayton, OH.;Environmental Protection Agency, Washington, DC. Office of Toxic Substances.
Publisher U.S. Environmental Protection Agency,
Year Published 1979
Report Number EPA 560/6-78-010; MRC-DA-831; EPA-68-01-1980; PB290617
Stock Number PB-290 617
OCLC Number 44596397
Subjects Organochromium compounds ; Sewage
Additional Subjects Sewage sludge ; Chromium organic compounds ; Chemical analysis ; Anaerobic processes ; Aerobic processes ; Distillation ; Extraction ; Sampling ; Design criteria ; Laboratory equipment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA 560-6-78-010 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB-290 617 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 35 pages ; 28 cm
The organochromium content of sewage sludge was evaluated during this study. Sewage sludges containing chromium were obtained. These sludges were analyzed to determine total chromium and then fractionated to obtain four chromium fractions. The fractions represented soluble chromium, cationic chromium which was dilute acid soluble, and alkali soluble and insoluble fractions. The two later fractions represent the chromium which is associated with humus and humin respectively. Mixtures of the sludges were analyzed for total and fractionated chromium. These mixtures were then subjected to aerobic and anaerobic digestion for 30 days. After the 30 day period the sludge mixtures were reanalyzed. Good mass balances were obtained for both the distribution of chromium among fractions compared with total chromium analyses and between before and after digestion samples. Data also was collected from the four fractions described earlier (for twenty-two other elements). These data were collected for sludge mixtures both before and after digestion studies. Comparisons were made of the distribution of the various elements.
"EPA-560/6-78-010"--Cover. "January 1979." "Contract 68-01-1980." "Project Officer: John H. Smith."