重金属污染土修复技术研究综述

中国土壤重金属污染情况严重，威胁着人们的身体健康，造成了巨大的经济损失。常用的重金属污染土修复技术基于物理、化学、生物的方法以及它们之间结合的修复技术。介绍了土壤中重金属的形态、来源以及常用修复技术的机理、影响因素和所存在的优势和缺陷，并且从修复成本、修复时间以及长期效果三个方面对常用的修复技术的适用性作了比较，为该领域学者的研究和实际的工程应用中制定重金属污染土壤的修复方案提供一定的参考。

A review of research on remediation technology for heavy metal

Soil heavy metal pollution in China is serious, threatening people '' s health and causing huge economic losses. The commonly used remediation technologies for heavy metal contaminated soil are based on physical, chemical and biological methods and their combination. This paper introduces the forms and sources of heavy metals in soil and the mechanism, influencing factors, advantages and disadvantages of commonly used remediation technologies, and compares the applicability of commonly used remediation technologies from three aspects : remediation cost, remediation time and long-term effect, so as to provide some reference for scholars in this field to develop remediation schemes for heavy metal contaminated soil.