Resistance of solid-phase U(VI) to microbial reduction during in situ bioremediation of uranium-contaminated groundwater.

TitleResistance of solid-phase U(VI) to microbial reduction during in situ bioremediation of uranium-contaminated groundwater.
Publication TypeJournal Article
Year of Publication2004
AuthorsOrtiz-Bernad I, Anderson RT, Vrionis HA, Lovley DR
JournalAppl Environ Microbiol
Volume70
Issue12
Pagination7558-60
Date Published2004 Dec
ISSN0099-2240
KeywordsAcetates, Biodegradation, Environmental, Deltaproteobacteria, Fresh Water, Geologic Sediments, Oxidation-Reduction, Solubility, Uranium, Water Pollutants, Radioactive
Abstract

Speciation of solid-phase uranium in uranium-contaminated subsurface sediments undergoing uranium bioremediation demonstrated that although microbial reduction of soluble U(VI) readily immobilized uranium as U(IV), a substantial portion of the U(VI) in the aquifer was strongly associated with the sediments and was not microbially reducible. These results have important implications for in situ uranium bioremediation strategies.

DOI10.1128/AEM.70.12.7558-7560.2004
Alternate JournalAppl. Environ. Microbiol.
PubMed ID15574961