六价铬污染土壤常用修复技术的研究进展

Research Progress on Common Remediation Methods in Construction of Hexavalent Chromium Contaminated Soil

土壤六价铬Cr(VI)污染逐渐严重,对农作物和人类健康产生较大危害。介绍了土壤中六价铬的来源、特性、危害及现行的土壤中六价铬环境质量标准,并逐一阐述了淋洗修复技术、化学还原修复技术、微波辐射修复技术、电动力学修复技术、化学吸附修复技术、联合修复技术等六价铬污染土壤施工常用修复技术的研究进展成果。同时,比较几种修复技术存在的优缺点,并展望当前治理六价铬污染土壤的发展趋势。

The pollution of Cr(VI)in the soil is gradually becoming serious,which will cause great harm to crops and human health.The source,characteristics,hazards and the current environmental quality standards of Cr(VI)in the soil was introduced,the research progress results of several commonly used remediation technologies for hexavalent chromium contaminated soil were also elaborated,such as leaching technology,chemical reduction technology,microwave radiation technology,electrodynamic remediation technology,chemical adsorption technology,and joint remediation technology.At the same time,the advantages and disadvantages of several remediation technologies were compared,and the current development trend of treatment of hexavalent chromium contaminated soil was prospected.