Dissolution of ²³⁸U from Low-Level Contaminated Soil by Acidithiobacillus Ferrooxidans

Abstract:

Dissolution behavior of ²³⁸U from low-level contaminated soil was investigated by Acidithiobacillus ferrooxidans (A. ferrooxidans) . It was found that the removal rate of ²³⁸U by A. ferrooxidans was much higher than that of deionized water. The A. ferrooxidans can promote the dissolution of ²³⁸U and the removal rate can achieve 94.50 %. Furthermore, the turnover rate of soil nutrients of A. ferrooxidans treated sample was much lower than that of dissolution by deionized water, and the soil fertility was maintained. This work illustrated the efficacy of leaching of uranium by the involvement of bacteria by indirect mechanism.

• Periodical: Applied Mechanics and Materials (Volume 700)
• Pages: 225-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.700.225
• Online since: December 2014
• Authors: Xue Li Mao*, Zhou Xuan Ding, Shi Bin Yuan
• Keywords: ²³⁸U, Acidophilus Ferrooxidan, Contaminated Soil, Dissolution, Radionuclide

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