重金属污染土壤修复技术研究的现状与展望

Current situation and prospect on the remediation of soils contaminated by heavy metals.

目前重金属污染土壤的修复主要采用物理化学技术和植物修复技术 .根据其作用过程和机理 ,物理化学技术主要包括化学固化、土壤淋洗和动电修复 ;植物修复技术包括植物稳定、植物挥发和植物提取 .本文就各种修复技术的原理、优缺点。

Physio-chemical techniques and phytoremediation are the important methods for solving heavy metal pollution of evironment.According to the processes and mechanisms of reactions,physio-chemical techniques can be divided into chemical immobilization,soil washing and electrokinetic remediation,while phytoremediation includes phyto-stabilization,phyto-volatilization and phyto-extraction.The principles,advantages,disadvantages,feasibility and future research trends of the techniques were reviewed.