某关停锌冶炼制酸厂土壤详细调查与风险评估  

Detailed Soil Investigation and Risk Assessment of a Certain Shutdown Zinc Smelting Acid Production Plant

作　　者：刘媛媛 靳彰钰 周润 曹欢 李丹 李亚飞 王金明 Liu Yuanyuan;Jin Zhangyu;Zhou Run;Cao Huan;Li Dan;Li Yafei;Wang Jinming(Shaanxi Yuanhong Environmental Technology Co.,Ltd.,Shaanxi,710000;Xi'an Yuanfang Environmental Sanitation Testing Technology Co.,Ltd.,Shaanxi,710000)

机构地区：[1]陕西塬泓环境科技有限公司,陕西710000 [2]西安圆方环境卫生检测技术有限公司,陕西710000

出　　处：《当代化工研究》2025年第6期91-93,共3页Modern Chemical Research

摘　　要：通过对西北地区某历史关停冶锌制酸厂地块土壤重金属进行调查和评估,发现地块内砷(As)、铅(Pd)、汞(Hg)、镉(Cd)、锌(Zn)、铬(六价)(Cr^(6+))存在不同程度超标,Hg污染累积最为显著,Cd次之,Pd、As、Zn均出现不同程度的污染累积,Cu和Ni未表现出明显的污染特征。地块垂向污染特征表现为表层污染面积较大,深度越深污染程度越小,冶炼渣填埋位置污染深度最大。重金属As、Cd、Cr^(6+)、Hg和Pd的环境风险超出可接受水平。研究结论可为早期典型火法炼锌制酸地块的土壤污染调查提供了科学依据和技术支持。Through an investigation and assessment of the soil heavy metals at the site of a historically closed zinc smelting and sulfuric acid plant in the northwest region,it was found that arsenic(As),lead(Pb),mercury(Hg),cadmium(Cd),zinc(Zn),and hexavalent chromium(Cr)all ex-ceed regulatory standard limits to varying degrees.Lead,arsenic,and zinc all show varying levels of accumulation,while copper and nickel are es-sentially uncontaminated.Using Arcgis software,the pollution distribution was simulated through interpolation.The vertical pollution characteris-tics show that the surface layer has the largest area of pollution,and the pollution degree decreases with depth.The pollution depth is greatest at the location of the smelting slag landfill.The risk assessment results indicate that the environmental risks of heavy metals arsenic,cadmium,hexavalent chromium,mercury,and lead are unacceptable.This study provides a framework for early investigation of soil pollution in typical pyrometall urgical zinc smelting sites.

关 键 词：冶锌制酸 详细调查 地累积指数 风险评估 源头管控 

分 类 号：X53[环境科学与工程—环境工程]