文山州某砷冶炼企业搬迁遗留土壤调查及污染成因分析

Investigation on Soil Pollution and Its Cause on One Relocated Arsenic Smelting Enterprise Field in Wenshan Prefecture

以文山州某砷冶炼企业搬迁遗留场地为例,结合厂区平面布置图与专业判断法进行土壤调查与分析。结果表明:7个点位不同深度土壤样品中,建设用地土壤环境必测45项和特征污染物锌、锑中重金属和无机物检出砷、铜、锌、铅、镉、镍、汞、锑,其中重金属砷、锌、锑出现超标;挥发性有机物和半挥发性有机物未检出。污染主要来源是原辅材料及弃渣堆存和在工艺过程及搬迁过程中遗撒、迁移所致。

Taking the relocation site of an arsenic smelting enterprise in Wenshan as an example,combined with the field layout plan and professional judgment method,the soil investigation and analysis were done.The results indicated that arsenic,zinc and antimony exceed the standard;volatility;Organic compounds and semi-volatile organic compounds were not within the limit in the soil samples of 7 sites,which were tested for 45 items,characteristic pollutants,and inorganic substances in zinc and antimony.The main source of pollution is the leftover of relocating the raw and auxiliary materials and waste residue storage.