地下水有机污染处理的渗透性反应墙技术

Permeable reactive wall for remediation of organic-contaminated groundwater

系统介绍了一种新的地下水污染原位治理方法(渗透性反应墙),具体包括渗透性反应墙的布置形式、介质选取、反应机理、应用现状以及存在问题等。在工程实践中,根据现场的水文地质条件和地下水中有机污染物的特点,可以通过改变反应墙的布置形式来有效地截获羽状体。与传统的抽出-处理系统相比,渗透性反应墙具有处理费用低、使用寿命长等特点,特别对高密度非水溶相液体(DNAPLs)形成的污染羽状体有较好的处理效果。

A new insitu remediation technology for groundwater contamination (permeable reactive barrier) is introduced in the paper, including the configurations, medium selection, mechanism, utilization situation and existed problems of reactive barrier In practice, the permeable reactive barrier configurations can be changed according to the local hydrogeologic conditions and the characteristics of groundwater contamination in order to effectively catch the contaminated plume Comparing with pumpandtreat system, the permeable reactive barrier is cheap and durable, with a good effect on the treatment of DNAPLscontaminated plume