锡矿尾矿库重金属污染特征分析

Analysis on heavy metal pollution characteristics of tin mine tailings pond

我国锡矿资源储量丰富,锡矿开采过程中产生大量尾矿堆存于尾矿库,存在着潜在环境污染风险。为研究分析锡矿尾矿库的重金属污染特征,通过采样检测、收集资料等方式,对锡尾矿主要成分及其属性、锡矿尾矿库废水、周边土壤等监测数据进行分析,采用标准指数法评价。结果表明,锡矿尾矿库主要重金属污染因子为As、Cu、Zn、Cd、Pb。此外,从环境空气、水环境、土壤环境等方面分析锡矿尾矿库的重金属污染影响,提出防治措施建议。

China is rich in tin resources and a large number of tailings are stored in tailings pond during tin mining,which has potential environmental pollution risks.In order to study and analyze the characteristics of heavy metal pollution in tin mine tailings pond,the main components and properties of tin tailings,tin mine tailings pond wastewater,surrounding soil and other monitoring data were analyzed by means of sampling detection and data collection,and the standard index method was used for evaluation.The results show that the main heavy metal pollution factors of tin mine tailings pond are Cu,Zn,Cd and Pb.In addition,the impact of heavy metal pollution in tin mine tailings pond is analyzed from the aspects of ambient air,water environment and soil environment,and the control measures are proposed.