基于工艺矿物学的河南某冶炼厂周边土壤污染分析及修复建议  

Suggestion for Remediation and Analysis on the Contaminated Soil Around a Smelter in Henan Province Based on Process Mineralogy

作　　者：孙景敏[1,2] 黄业豪 徐靖 周娇花[1,2] 耿彬 豆金辉 李荣改[1,2] 王誉树 李翠芬 张雨田[1,2] SUN Jingmin;HUANG Yehao;XU Jing;ZHOU Jiaohua;GENG Bin;DOU Jinhui;LI Ronggai;WANG Yushu;LI Cuifen;ZHANG Yutian(Henan Province Rock&Minerals Testing Center,Zhengzhou 450012,China;Mineral Processing and Bioengineering Technology Research Center of Henan Province,Zhengzhou 450012,China)

机构地区：[1]河南省岩石矿物测试中心,河南郑州450012 [2]河南省矿物加工与生物选矿工程技术研究中心,河南郑州450012

出　　处：《矿产保护与利用》2020年第2期146-150,共5页Conservation and Utilization of Mineral Resources

基　　金：河南省地质矿产勘查开发局2018—2020年度局财政规划项目(豫地矿科研[2018]10号)。

摘　　要：以河南某冶炼厂周围Pb污染土壤为研究对象,基于工艺矿物学,采用离子色谱仪、XRD、EDS、SEM等分析测试手段对其进行了分析研究,研究结果表明:土壤样品中铅主要以PbCO3的形式存在,其次是Pb5(PO4)3Cl2和PbSO4,另外还含有少量的PbS;土壤样品颗粒之间相互黏结呈絮团状聚体,颗粒之间界面并不分明,各颗粒表面污浊,样品中偶见立方体结构的方铅矿、斜方体结构或块状的白铅矿等含Pb矿物,另外污染物Pb元素也分布于菱铁矿和褐铁矿中;该研究提出了将物料分离技术应用于重金属污染土壤修复领域的新思路。The study takes a Pb contaminated soil around a smelter in Henan Province as the object.ICP,XRD,EDS,SEM,and other analysis methods were conducted based on process mineralogy.The study results shows that the lead of the soil exists mainly in form of PbCO3,Pb5(PO4)3Cl2 and PbSO4,it also contains a small amount of PbS.The microstructure of soil exhibits that the soil particles adhere to each other as flocculent aggregates,the interface between particles is not clear,and the surface of each particle is dirty.The cubic galena and orthorhombic or massive cerussite are occasionally found in the samples,besides,the Pb is also distributed in siderite and limonite.In this study,a new idea of applying material separation technology to remediation of heavy metal contaminated soil is put forward.

关 键 词：重金属 污染土壤 工艺矿物学 修复建议 

分 类 号：X53[环境科学与工程—环境工程]