Remediation of uranium contaminated soils with bicarbonate extraction and microbial U(VI) reduction
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
A process for concentrating uranium from contaminated soils in which the uranium is first extracted with bicarbonate and then the extracted uranium is precipitated with U(VI)-reducing microorganisms was evaluated for a variety of uranuum-contaminated soils. Bicarbonate (100 mM) extracted 20–94% of the uranium that was extracted with nitric acid. The U(VI)-reducing microorganism,Desulfovibrio desulfuricans reduced the U(VI) to U(IV) in the bicarbonate extracts. In some instances unidentified dissolved extracted components, presumably organics, gave the extract a yellow color and inhibited U(VI) reduction and/or the precipitation of U(IV). Removal of the dissolved yellow material with the addition of hydrogen peroxide alleviated this inhibition. These results demonstrate that bicarbonate extraction of uranium from soil followed by microbial U(VI) reduction might be an effective mechanism for concentrating uranium from some contaminated soils.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Remediation of uranium contaminated soils with bicarbonate extraction and microbial U(VI) reduction |
| Series title | Journal of Industrial Microbiology |
| DOI | 10.1007/BF01569928 |
| Volume | 14 |
| Issue | 3 |
| Year Published | 1995 |
| Language | English |
| Publisher | Society for Industrial Microbiology |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 5 p. |
| First page | 203 |
| Last page | 207 |
| Google Analytic Metrics | Metrics page |