Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Chromium Biotreatment in Soil, Chapter 6.
Author Swell, G. W. ; Shen, H. ; Pritchard, P. H. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Dynamac Corp., Ada, OK. ;Naval Research Lab., Washington, DC.
Publisher 1997
Year Published 1997
Report Number EPA/600/A-97/084;
Stock Number PB98-116445
Additional Subjects Soil treatment ; Biodegradation ; Land pollution control ; Soil contamination ; Heavy metals ; Biological treatment ; Microorganisms ; Reduction(Chemistry) ; Detoxification ; Precipitation(Chemistry) ; Chemical reactions ; Hexavalent chromium ; Biotreatment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB98-116445 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/07/1998
Collation 34p
The potential for the biotreatment of CR(VI) wastes has received increased attention because the microbially mediated processes may offer cods, effective ness and sludge production. There are several biological mechanisms which may be suitable for metal treatments, including trnasofrmation, extracellular bindiing, complex formation, biosorption, and intracellular accumulation. Considering the more immobile and less toxic characteristics of Cr(III), the microbial reduction of Cr(VI) to Cr(III) appears to hold the most promise for the develoment of an innovative biotreatment technology. This reductive biotransofmration nont only leads to Cr(VI) detoxification but precipitates the metal in soils, therefore minimizing its potential risk to human helath and impacted ecosystem through decreases toxicity and exposure.