某雄黄矿高砷污染土壤修复研究  

Investigation of High Arsenic Contamination in Soil of Realgar Mine In Hunan

作　　者：周虹 李情 胡培良 朱俊民 舒心 ZHOU Hong;LI Qing;HU Peiliang;ZHU Junmin;SHU Xin(Chinalco Environmengtal Protection Ecology Technology(Hunan)Co.,Ltd.,Changsha 410000,China;Yonker Environmental Protection Co.,Ltd.,Changsha 410330,China;Hunan Research Institute for Nonferrous Environmental Protection Co.,Ltd.,Changsha 410100,China)

机构地区：[1]中铝环保生态技术(湖南)有限公司,湖南长沙410000 [2]永清环保股份有限责任公司,湖南长沙410330 [3]湖南有色环保研究院有限公司,湖南长沙410100

出　　处：《湖南有色金属》2023年第5期75-79,共5页Hunan Nonferrous Metals

基　　金：国家重点研发计划项目(2020YFC1808704)。

摘　　要：某雄黄矿区已有几百年的开采历史。长期的开采使当地环境遭受严重的污染,据调查表明该地区局部总砷达10000 mg/kg,对当地居民健康带来严重的危害。本研究通过采用硫酸铁、硫酸铝、高锰酸钾作为修复原料,得到一种处理高浓度砷污染土壤修复方法。该方法可大大降低有效态砷的TCLP浸出浓度,使有效态砷的浸出浓度从65.0 mg/L降到0.97 mg/L,修复效率达98%以上。该方法效果显著、实施过程简便易行,是一种较为经济、实用的高砷污染土壤修复方法,具有极佳的研究意义和应用价值。A realgar mine has hundreds of years of mining history.The soil in this area has been seriously polluted by arsenic contamination,for the long⁃term of realgar mine exploration.According to investigate,the total arsenic content of soil is more than 10000 mg/kg in some regions,which is the huge harm to human health for the local residents.In this research,the ferric sulfate,aluminium sulfate and potassium permanganate were used as the remediation materials.At the same time,a kind of method has been obtained,which was used to treatment the high levels of arsenic in soil.Using standard method of TCLP(Toxicity Characteristic Leaching Procedure),after remediation by this method,the leaching content of arsenic can be reduced from 65.0 mg/L to 0.97 mg/L in contaminated soil.The removal rate is higher than 98%.Compared with other methods,this formula have been proved to be more efficient,facilitate and economical,which exists potential research significance and application value.

关 键 词：雄黄矿 砷污染土壤 土壤修复 TCLP 固化稳定化 

分 类 号：X53[环境科学与工程—环境工程]