土壤重金属污染现状与修复技术

Current Situation of Soil Contamination by Heavy Metals and the Remediation Techniques

由于工业"三废"的排放,使土壤遭受不同程度的重金属污染。重金属通过在作物体内富集进入食物链,对人畜健康造成危害。本文对土壤重金属污染的现状、不同修复技术及其原理、优缺点、可行性作了概述,对生物修复技术在土壤修复中的应用前景做了进一步展望,为实现对重金属污染土壤进行有效的生态整治和安全高效益的利用提供技术途径。

Heavy metal contamination of soils as a result of industrial discharge is a serious threat to human and animals＇ health because bioaeeumulation in the food chain. Current situation of heavy metal pollution, remedial mechanisms, advantages and disadvantages of different methods and feasibility of application were reviewed in this paper. In addition, new biotechnological methods used in phytoremediation of soils contaminated by heavy metal and future prospect were discussed in details.