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| Role of Clay Minerals in Uranium Mining and Metallurgy and Uranium Rich Environment Treatment |
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Received:December 13, 2021
Revised:December 20, 2021
Accepted:December 22, 2021
Published Online:April 12, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.05.016 |
| KeyWord:clay minerals; pollution from mines; adsorption; environmental remediation |
| Author | Institution |
| ZHAO KAI |
核资源与环境国家重点实验室 |
| LI Guang-rong |
核资源与环境国家重点实验室 |
| SUN Zhan-xue |
核资源与环境国家重点实验室 |
| LIU Jin-hui |
核资源与环境国家重点实验室 |
| ZHOU Yi-peng |
核资源与环境国家重点实验室 |
| XU Ling-ling |
核资源与环境国家重点实验室 |
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| Abstract: |
| Clay minerals widely exist in uranium ores. They have the characteristics of big interlayer ion exchange capacity, high interlayer charge, high slice diameter thickness ratio and specific surface area, which can’t be ignored in the whole process of uranium production. Clay mineral particles are fine and can expand with water, which will block the mining and smelting system and have an adverse impact on uranium leaching. On the other hand, Applying the ability of strong adsorption of clay minerals on various metal ions, radioactive metals, crude oil and organic matter, it can control the pollution caused by uranium mining, including leakage of uranium elements and other heavy metals such as lead, copper and cadmium. At present, the utilization of clay minerals is mainly focused on laboratory research and lacks large-scale application. In the process of research and application in the future, the application scope of clay in mine environmental remediation can be expanded. In the process of future research and application, it is necessary to further explore the generation mechanism of clay in the process of uranium leaching, avoid the generation of a large amount of clay in the process of leaching, and expand the application scope of clay in mine environmental remediation. In the process of environmental remediation of uranium mines, effective utilization of clay minerals widely existing in the stratum can be considered to carry out in-situ remediation of environmental pollution caused by uranium mining. |
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