Supervisor：China Geological Survey
Sponsored by：XI'an Center of China Geological Survey
Geological Society of China
| Citation: |
JIA Xiaodan, WANG Hui, XU Youning. Analysis of Heavy Metal Environmental Risk Level and Contribution Rate of Tailings Storerooms of A Molybdenum Mine[J]. Northwestern Geology, 2023, 56(4): 152-161. DOI: 10.12401/j.nwg.2023092
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To investigate the water pollution effects of a molybdenum mine’s concentrated mining area in southern Shaanxi Province with a 20–year mining history on the surrounding environment, this study collected water quantity and quality test data for 25 tailings pond acid drainage outlets, including the contents of nine heavy metal elements such as mercury, cadmium, arsenic, lead, copper, zinc, manganese, iron, and molybdenum, to evaluate the compound pollution caused by multiple sources and multiple heavy metals. Using the single pollution index and comprehensive index method, this study compared and analyzed the results with the“Comprehensive Wastewater Discharge Standard (GB 8978–1996)”and the“Surface Water Environmental Quality Standard (GB 3838–2002)”, and calculated the single heavy metal element pollution load based on the amount of discharged water. Furthermore, on the basis of the equal–weight index method, this study used the environmental quality standards as a benchmark and, according to the principle of "the importance of the standard value determines its importance," introduced a three–scale indirect matrix to calculate the relative weights of the nine elements, including Fe, and their pollution loads to determine the environmental risk value of a tailings pond. Finally, this study determined the pollution contribution rate of the 25 tailings ponds to the receiving water body, and provided suggestions for the prioritization of tailings pond pollution source control in the next step, based on the pollution load and environmental risk value, to provide a reference for the formulation of relevant follow–up treatment plans.
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徐友宁,陈华清,柯海玲,等. 蒿坪河流域石煤矿区河流铝的白色污染及其成因分析[J]. 西北地质,2023,56(4):128–140.
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| MA Haizhen, ZHANG Zhenshi, LI Quan, XU Lin, GE Yang, YANG Zhen. 2024: Distribution and Health Risk Assessment of Cr6+ in Soil and Groundwater of a Chemical Plant. Northwestern Geology, 57(1): 73-82. DOI: 10.12401/j.nwg.2023101 | |
| CAI Chunxia, JIA Xiaodan, BAO Guochen, CAO Jingxin, HUANG Boya, WANG Zhongchen. 2024: Impact and Contribution of Atmospheric Pollutant Deposition from a Typical Power Plant on Surrounding Water Sources. Northwestern Geology, 57(1): 64-72. DOI: 10.12401/j.nwg.2023128 | |
| XU Youning, CHEN Huaqing, KE Hailing, GONG Huishan, CHENG Xiuhua, ZHANG Mingzu, WANG Xiaoyong, ZHAO Zhenhong. 2023: Analysis of White Pollution of River Aluminum in Stone CoalMining Area in Haoping River Basin and Its Causes. Northwestern Geology, 56(4): 128-140. DOI: 10.12401/j.nwg.2023141 | |
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| ZHANG Jianghua, XU Youning, CHEN Huaqing, KE Hailing, QIAO Gang. 2020: Comparative Study of the Accumulated Effect of Heavy Metals on Soil and Wheat in Xiaoqinling Gold Mining Area. Northwestern Geology, 53(3): 284-294. DOI: 10.19751/j.cnki.61-1149/p.2020.03.026 | |
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