淋洗剂法修复铬污染土壤的研究现状及展望  

Research Status and Prospect of Remediation of Chromium Contaminated Soil by Eluent Method

作　　者：胡造时 苏渭水 李丽和 HU Zao-shi;SU Wei-shui;LI Li-he(Guangxi Zhuang Autonomous Region Ecological&Environmental Monitoring Centre,Nanning 530000,China;Guangxi Zhuang Autonomous Region Radiation Environment Supervision&Management Station,Nanning 5300,China)

机构地区：[1]广西壮族自治区生态环境监测中心,南宁530000 [2]广西壮族自治区辐射环境监督管理站,南宁530000

出　　处：《四川环境》2023年第3期335-339,共5页Sichuan Environment

基　　金：国家重大科学仪器设备开发专项项目“重点防控重金属汞、铬、铅、镉、砷便携车载在线监测仪器开发与应用示范”(2012YQ060115)。

摘　　要：为了科学合理地选择淋洗剂对铬污染土壤进行修复,本文对各种常用淋洗剂去除铬的优势与不足进行了分析比较,提出使用这一技术的相关建议。对三十篇近年来有关淋洗剂研究的文献进行总结,归纳各种淋洗剂的使用条件和特点,比较不同淋洗剂的使用效果。目前常用的淋洗液类型主要有:无机淋洗液、表面活性剂淋洗液、螯合剂淋洗液以及复合型淋洗液。不同类型的淋洗液其使用条件各不相同,对铬污染土壤的修复效果也不相同,对环境的影响也不一样。淋洗技术是修复重金属污染土壤的常用方法,但其也存在一定的局限性,因此应根据实际情况选择适合的淋洗剂。In order to scientifically and rationally select the eluent for the remediation of chromium-contaminated soil,the advantages and disadvantages of various common eluents for removing chromium were analyzed and compared in this paper,and relevant suggestions for using this technology were put forward.Thirty literatures on the research of eluent in recent years were summarized,the use conditions and characteristics of various eluents were summarized,and the application effects of dfferent eluents were compared.The main types of commonly used eluents at present are:inorganic eluent,surfactant eluent,chelating agent eluent,and compound eluent.The use conditions for different types of eluents were different,and the remediation effects on chromium-contaminated soil as well as the environmental impacts were also different.The technology of using leaching agent is a common method to remediate heavy metal-contaminated soil,but it also has certain limitations,so the appropriate leaching agentshould be selected according to the actual situation.

关 键 词：土壤 铬 淋洗剂 

分 类 号：X53[环境科学与工程—环境工程]