Role of U(VI) Reduction by Geobacter species
- Univ. of Massachusetts, Amherst, MA (United States); University of Massachusetts, Amherst
Previous work had suggested that Acholeplasma palmae has a higher capacity for uranium sorption than other bacteria studied. Sorption studies were performed with cells in suspension in various solutions containing uranium, and results were used to generate uranium-biosorption isotherms. Results from this study showed that the U(VI) sorption capacity of G. uraniireducens was relatively similar in simple solutions, such as sodium chloride or bicarbonate. However, this ability to sorb uranium significantly decreased in groundwater. This suggested that certain chemicals present in the groundwater were inhibiting the ability of cell components of Geobacter to adsorb uranium. It was hypothesized that uranium removal would also be diminished in the bicarbonate solution. However, this did not seem to be the case, as uranium was as easily removed in the bicarbonate solution as in the sodium chloride solution.
- Research Organization:
- Univ. of Massachusetts, Amherst, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- FG02-07ER46432
- OSTI ID:
- 944619
- Report Number(s):
- DOE/FG/46432--
- Country of Publication:
- United States
- Language:
- English
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