农田土壤重金属污染化学钝化修复研究进展

Research progress of heavy metals chemical immobilization in farm land

摘要: 土壤重金属化学钝化修复是指向污染土壤中添加钝化剂，使重金属由活性向稳定化形态转化，以降低重金属的迁移和生物可利用性，从而修复重金属污染土壤的方法。本文综述了近些年国内外各类钝化材料修复重金属污染土壤的作用效果和机理、实例等方面的研究进展，并讨论了原位修复土壤重金属中亟待解决的问题，旨在为农田土壤重金属污染的化学钝化剂筛选与应用提供参考依据。

Abstract: Soil heavy metal pollution remediation by chemical immobilization is a method that applies immobilization reagent to reduce the mobilization and availability of heavy metals. This paper summarized the research progress of efficiency and mechanism of various immobilization materials to agricultural land, and discussed the main problems for in situ remediation. The purpose of the paper is to provide base for choice and application of immobilization materials.