| Abstract: | Enzymatic uranium reduction by Desulfovibrio desulfuricans readily removed uranium from solution in a batch system or when D. desulfuricans was separated from the bulk of the uranium-containing water by a semipermeable membrane. Uranium reduction continued at concentrations as high as 24 mM. Of a variety of potentially inhibiting anions and metals evaluated, only high concentrations of copper inhibited uranium reduction. Freeze-dried cells, stored aerobically, reduced uranium as fast as fresh cells. D. desulfuricans reduced uranium in pH 4 and pH 7.4 mine drainage waters and in uraniumcontaining groundwaters from a contaminated Department of Energy site. Enzymatic uranium reduction has several potential advantages over other bioprocessing techniques for uranium removal, the most important of which are as follows: the ability to precipitate uranium that is in the form of a uranyl carbonate complex; high capacity for uranium removal per cell; the formation of a compact, relatively pure, uranium precipitate. |
| Genre: | Article |
| ProdID: | 70016911 |
| Citation Author: | Lovley, D. R.; Phillips, E. J. P. |
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| Citation End Page: | 2234 |
| Citation Issue: | 11 |
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| Citation Language: | English |
| Citation Larger Work Title: | Environmental Science and Technology |
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| Citation Number Of Pages: | 7 |
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| Citation Search Results Text: | Bioremediation of uranium contamination with enzymatic uranium reduction; 1992; Article; Journal; Environmental Science and Technology; Lovley, D. R.; Phillips, E. J. P. |
| Citation Start Page: | 2228 |
| Citation Volume: | 26 |
| Citation Year: | 1992 |
| Type: | citation/reference |
| Text: | Bioremediation of uranium contamination with enzymatic uranium reduction; 1992; Article; Journal; Environmental Science and Technology; Lovley, D. R.; Phillips, E. J. P. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1992 00:00 -0600 |
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