Role of U(VI) Reduction by Geobacter species | |
Lovely, Derrick1  | |
[1] Univ. of Massachusetts, Amherst, MA (United States) | |
关键词: URANIUM; SODIUM CHLORIDES; AQUEOUS SOLUTIONS; GROUND WATER; ACID CARBONATES; REDUCTION; ISOTHERMS; SORPTION; BACTERIA; CAPACITY; SUSPENSIONS; REMOVAL Geobacter; | |
DOI : 10.2172/944619 RP-ID : DOE/FG/46432-- PID : OSTI ID: 944619 Others : TRN: US1600064 |
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美国|英语 | |
来源: SciTech Connect | |
【 摘 要 】
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.
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