Resistance of solid-phase U(VI) to microbial reduction during in situ bioremediation of uranium-contaminated groundwater |
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Authors: | Ortiz-Bernad Irene Anderson Robert T Vrionis Helen A Lovley Derek R |
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Institution: | Department of Microbiology, University of Massachusetts, Morrill Science Center IVN, Amherst, MA 01003, USA. iortiz@microbio.umass.edu |
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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. |
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