摘要
介绍了利用电动力学技术强化土壤及地下水原位生物修复的原理和最新进展。电动力学强化的基本原理是利用电渗析、电迁移和电泳等电动力学效应加速污染环境中有机污染物和微生物运动 ,注入营养物、电子受体或活性微生物 ,或者利用电极反应和电流热效应为地下生物降解创造有利条件。研究表明 ,电动力学技术能有效地强化原位生物修复 ,而且该技术不破环生态环境 ,安装和操作简单 ,成本低廉 。
The principles of enhancement of in situ bioremediation of contaminated groundwater and soils by electrokinetics and its advances in research and applications were reviewed. The electrokinetics is able to, by use of electroosmosis, electromigration and electrophoresis, control the transport of pollutants toward bacteria in subsurface resulting in a higher chance to be attracted, and inject effectively bacterial nutrients, electron acceptors and active cultures to stimulate intrinsic biotransformation. Moreover, electrolysis reaction and Joule heating effect induced by electric current applied may produce appropriate conditions for in situ bioremediation. It is effective, no damage to environment, simple in installation and operation, much cheaper, and thus has great potential for application.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2004年第4期268-271,共4页
Environmental Pollution & Control
基金
日本地球环境产业技术研究机构资助项目
