刘应冬, 代力, 张卫华. 青海某金矿矿集区土壤重金属污染评价及综合利用讨论[J]. 矿产综合利用, 2018, 39(5). DOI: 10.3969/j.issn.1000-6532.2018.05.021
    引用本文: 刘应冬, 代力, 张卫华. 青海某金矿矿集区土壤重金属污染评价及综合利用讨论[J]. 矿产综合利用, 2018, 39(5). DOI: 10.3969/j.issn.1000-6532.2018.05.021
    Liu Yingdong, Dai Li, Zhang Weihua. Assessment of soil heavy metals pollution and comprehensive utilization in a gold mine area in Qinghai[J]. Multipurpose Utilization of Mineral Resources, 2018, 39(5). DOI: 10.3969/j.issn.1000-6532.2018.05.021
    Citation: Liu Yingdong, Dai Li, Zhang Weihua. Assessment of soil heavy metals pollution and comprehensive utilization in a gold mine area in Qinghai[J]. Multipurpose Utilization of Mineral Resources, 2018, 39(5). DOI: 10.3969/j.issn.1000-6532.2018.05.021

    青海某金矿矿集区土壤重金属污染评价及综合利用讨论

    Assessment of soil heavy metals pollution and comprehensive utilization in a gold mine area in Qinghai

    • 摘要: 为研究青海某金矿矿集区土壤重金属污染情况,采集了土壤样品442件,分析了重金属元素(As、Cd、Hg、Pb、Cn、Zn、Cr、Ni)含量,采用内梅罗污染指数法、地累积污染指数法进行评价。结果表明,重金属元素污染轻微,仅As元素产生一定程度的污染,其中内梅罗指数法评价出有69.43%的样品受到As污染,地累积指数法评价出59.24%的样品受砷污染,两种评价结果较为接近。矿集区金矿石中的金属矿物主要为黄铁矿和毒砂,选矿试验发现样品中As含量达到0.38%,超过了伴生组分的评价标准,在后续矿业开发中,加强As元素的综合回收利用,是减少对环境污染的有效方法之一。

       

      Abstract: In order to study the soil heavy metal pollution in a gold mining area in Qinghai province, we collected 442 soil samples and tested the content of heavy metal elements (As, Cd, Hg, Pb, Cn, Zn, Cr, and Ni). Nemerou index method and Geo_accumulation index method were used to evaluate the influence of heavy metal pollution. Results show that the heavy metals pollution was mild, just arsenic elements to produce a certain degree of pollution, 69.43% of the samples were contaminated with arsenic by the Nemerou index method, and 59.24% of the samples were contaminated with arsenic by the Geo_accumulation index method, two kinds of evaluation result is more close to. The main metallic minerals in the gold ores are pyrite and arsenopyrite, dressing experiment found that arsenic content in the samples reached 0.38%, more than the evaluation standard of associated components, in the subsequent mining development, strengthen the comprehensive recycling of arsenic, is one of the effective methods to reduce the pollution to the environment.

       

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