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| Distribution and Evaluation of Nuclide Uranium and Potassium in Surface Water around Uranium Tailings |
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Received:March 13, 2019
Revised:March 14, 2019
Accepted:March 18, 2019
Published Online:July 15, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.08.017 |
| KeyWord:uranium tailings pond; surface water; radionuclide pollution; uranium; potassium |
| Author | Institution |
| Wei Qianglin |
东华理工大学核资源与环境国家重点实验室; 东华理工大学核科学与工程学院 |
| Chen Gongxin |
东华理工大学水资源与环境工程学院 |
| Zeng Hua |
东华理工大学水资源与环境工程学院 |
| Luo Xujia |
东华理工大学核科学与工程学院 |
| Zhou Dongyue |
东华理工大学核科学与工程学院 |
| Liu Dahu |
生态环境部核与辐射安全中心 |
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| Abstract: |
| Surface water around a uranium tailings pond in southern China was selected as the object to investigate relationship between content of uranium and potassium in surrounding surface water and chemical parameters such as pH value, Eh value and conductivity of water. Pollution characteristics and influencing factors of uranium and potassium were studied. Single factor pollution evaluation was carried out. The results show that the tailings pond itself has high radioactivity level. Average contents of uranium and potassium at the sampling sites are 14.68 and 2.02 times of the background values in Jiangxi province. According to the Pearson coefficient, uranium and potassium have the same source and migration characteristics. The single factor evaluation shows that the most polluted location is at the bottom of tailings pond and outlet of water treatment plant. The uranium content of all sampling points does not exceed the limit value in the “Regulations for radiation and environmental protection in uranium mining and milling”. Uranium contents of other surface water sampling sites in the vicinity all meet the international drinking water standards except the nearest sampling sites. |
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