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| Effects of Temperature and L/S on Bioleaching of a Uranium Mine |
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Received:February 25, 2022
Revised:March 07, 2022
Accepted:March 10, 2022
Published Online:June 17, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.07.011 |
| KeyWord:acidophilic Thiobacillus ferrooxidans; temperature; L/S; bioleaching; uranium |
| Author | Institution |
| GUO Jian-ping |
东华理工大学 核资源与环境国家重点实验室;东华理工大学 水资源与环境工程学院; |
| ZHOU Zhong-kui |
东华理工大学 核资源与环境国家重点实验室 |
| GE Yu-bo |
东华理工大学 核资源与环境国家重点实验室 |
| SUN Zhan-xue |
东华理工大学 核资源与环境国家重点实验室 |
| WANG Shi-jun |
东华理工大学 核资源与环境国家重点实验室 |
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| Abstract: |
| Leaching microorganisms (Thiobacillus ferrooxidans) are susceptible to environmental factors such as temperature and liquid-solid ratio during uranium bioleaching. Based on the variation of pH values, Eh values, iron ion concentrations and uranium leaching rate in uranium bioleaching solution, effects of temperature and L/S on uranium bioleaching of a uranium mine in south China were investigated. When temperature is 30 ℃ and L/S is 20, the microbial leaching effect of uranium ore is the best, and uranium leaching rate is 96.15% and 97.02% respectively. Thus, during uranium bioleaching process, it can be controlled by temperature and L/S to offer the optimal growth environment to improve uranium bioleaching. The results provide critical parameter and theoretical foundation for industrial production of a uranium mine in south China. |
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