生活垃圾填埋场渗滤液金属污染特征及典型金属污染物来源解析

摘要

Analysis of metal pollution characteristics of leachate in three different age landfills in Xuzhou area.We combine the affect of human body by corresponding metal elements,and the list of precedence-controlled metal pollutants of EPA.We should focus on the toxic and hazardous metal blacklist of landfill leachate,which contain Cr,As,Pb,Cd,Sb,Tl and Al,Ba,Co.And we should focus on necessary of small amount but toxicity of excessive metal blacklist of landfill leachate,which contain Ni,Se,Zn,Cu,Fe,B,Sr,V,Mn,Ti,and K,Na,Ca,Mg which concentration are relatively high.The application comparison method is used for in-depth and detailed source analysis.Analytic results are toxic and hazardous metal pollution mainly comes from the waste of industrial processing products and by-products.The pollution of Ni,Zn,Cu,Fe,B,Sr,V,Mn and Ti mainly comes from the waste of kitchen waste,the by-products,glass,alloy and other living wastes.The pollution of Se,K,Na,Ca,Mg and so on are from the waste products of Chinese food kitchen waste.%通过徐州地区3个不同填埋龄生活垃圾填埋场渗滤液金属污染特征分析,结合相应金属元素对人体影响,以及EPA优先控制的金属污染物名单,筛选出垃圾渗滤液重点关注有毒有害金属黑名单,它们分别为Cr,As,Pb,Cd,Sb,Tl及Al,Ba,Co;重点关注微量必需但过量有毒金属黑名单,它们分别为Ni,Se,Zn,Cu,Fe,B,Sr,V,Mn,Ti以及浓度相对较高的K,Na,Ca,Mg.应用比对法进行深入细致的来源解析,解析结果为:有毒有害金属污染主要来自生活需工业加工产品及副产物的废弃物;过量有毒金属中Ni,Zn,Cu,Fe,B,Sr,V,Mn,Ti污染主要来自餐厨垃圾中农副产品及玻璃、合金等生活废弃物;Se,K,Na,Ca,Mg等多来自生活中餐厨垃圾中农副产品废弃物.