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| Change Characteristics and Influence Factors of Radioactive Nuclide Uranium in Tailings Area and Surrounding River System |
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Received:December 26, 2016
Revised:December 28, 2016
Accepted:December 30, 2016
Published Online:April 20, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.05.016 |
| KeyWord:tailings pond; uranium; surrounding water; PHREEQC-Ⅱ |
| Author | Institution |
| lianhuan |
东华理工大学水资源与环境工程学院 |
| gaobai |
核资源与环境国家重点实验室培训基地;东华理工大学水资源与环境工程学院 |
| GUO-Ya-dan |
核资源与环境国家重点实验室培训基地;东华理工大学水资源与环境工程学院 |
| ZHANG Chun-yan |
东华理工大学水资源与环境工程学院 |
| DING Xiao-yan |
东华理工大学水资源与环境工程学院 |
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| Abstract: |
| Surrounding tailings discharge water, percolating water, and shallow groundwater were selected to study and analyze variation in content of uranium, forms of existence, and influence factors. Chemical speciation of uranium in surrounding water was calculated by geochemical models PHREEQC-Ⅱ. Chemical indexes were analyzed by SPSS data processing software for discharge water, percolation water, and shallow groundwater. The results show that uranium in water is almost 100% U(Ⅵ), existing mainly in forms of UO2F , UO2F2, UO2OH , UO2(CO3)22-, (UO2)2CO3(OH)3–, and UO2(OH)2 in three water samples. Uranium concentration in water environment is mainly affected by anions, such as HCO3-, SO42-, oxidation-reduction potential. |
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