Microbiological and Geochemical Heterogeneity in an In Situ Uranium Bioremediation Field Site
نویسندگان
چکیده
منابع مشابه
Microbiological and geochemical heterogeneity in an in situ uranium bioremediation field site.
The geochemistry and microbiology of a uranium-contaminated subsurface environment that had undergone two seasons of acetate addition to stimulate microbial U(VI) reduction was examined. There were distinct horizontal and vertical geochemical gradients that could be attributed in large part to the manner in which acetate was distributed in the aquifer, with more reduction of Fe(III) and sulfate...
متن کاملMicrobial Bioremediation of Uranium: an Overview
Uranium contamination is a worldwide problem. Preventing uranium contamination in the environment is quite challenging and requires a thorough understanding of the microbiological, ecological and biogeochemical features of the contaminated sites. Bioremediation of uranium is largely dependent on reducing its bioavailability in the environment. In situ bioremediation of uranium by microbial proc...
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15 صفحه اولSpeciation and Reactivity of Uranium Products Formed during in Situ Bioremediation in a Shallow Alluvial Aquifer
In this study, we report the results of in situ U(VI) bioreduction experiments at the Integrated Field Research Challenge site in Rifle, Colorado, USA. Columns filled with sediments were deployed into a groundwater well at the site and, after a period of conditioning with groundwater, were amended with a mixture of groundwater, soluble U(VI), and acetate to stimulate the growth of indigenous mi...
متن کاملDynamics of microbial community composition and function during in situ bioremediation of a uranium-contaminated aquifer.
A pilot-scale system was established to examine the feasibility of in situ U(VI) immobilization at a highly contaminated aquifer (U.S. DOE Integrated Field Research Challenge site, Oak Ridge, TN). Ethanol was injected intermittently as an electron donor to stimulate microbial U(VI) reduction, and U(VI) concentrations fell to below the Environmental Protection Agency drinking water standard (0.0...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2005
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.71.10.6308-6318.2005