中文摘要：

土壤原位固定修复是通过添加不同外源物质固定土壤中重金属元素,达到降低重金属迁移能力和生物有效性的一种有效的土壤污染修复技术。由于该技术具有操作方便、效果快速,处理成本低廉等优点,使得其在土壤污染防治过程中具有不可替代的作用。本文较为系统的综述了铬土壤的原位固定化修复的几种常见方法及其作用原理,分析了固定化修复技术的局限性,提出了该技术未来的发展方向。

英文摘要：

In situ immobilization of heavy metals is a main method to decrease the mobility and bioavailability of heavy metal ions through their immobilization by adding various amendments.Due to its easy operation、rapid efficiency and low price,this method is becoming non-replaceable.In this paper,we discuss several common methods and the possible immobilization mechanisms for the remediation of Cr contaminated soil,its limitation was analyzed,and further development directions were put forward.