电动力学技术在受污染地下水和土壤修复中新进展

综述了电动力学技术的原理及其在受污染土壤和地下水修复方面的应用.电动力学技术利用电渗析、电迁移和电泳使土壤孔隙中的水和荷电离子或粒子发生迁移运动.大量研究表明,电动力学技术能够高效地去除土壤和地下水中的重金属离子.最新研究表明电动力学技术也能够直接去除有机污染物,其与生物修复优化组合有可能成为高效"绿色"修复技术.这种技术具有安装方便、操作简单和成本低廉的特点,而且不影响生态环境,是非常有发展前景的一种环境修复技术.

Electrokinetics in Remediation of Contaminated Groundwater and Soils

This paper reviewed the principles of electrokinetics and its application in remediation of contammated soils and groundwater.The electrokinetics is able to drive water and ions to move through soil pores including electromigration,electroosmosis and electrophoresis under electric field.Many researches have demonstrated that high efficient removal of heavy metal ions can be achieved.New developments demonstrated that electrokinetics can also remove organic pollutants alone or by combining with bioremediation synergistically.This technology is convenient in installation,simple in operation,cheap and does not disrupt ecoenvironment,thus is a potential remediation technology.