土壤有机污染的表面活性剂修复技术

Analysis of Surfactant Remediation Technology of Soil Organic Pollution

指出了土壤是多相多组分构成的复杂体系,有机污染物吸附在土壤有机质上,难以清除和降解。表面活性剂具有两性基团,溶于水中可形成胶束,包裹疏水性有机污染物,增加其溶解性,从而将有机污染物从土壤中洗脱出来。在概述土壤有机污染常见修复方法的基础上,详细说明了表面活性剂的修复机理及用于土壤修复的影响因素,并介绍了该技术的应用前景,对现有问题进行了思考。

The soil is a complex system constructed by multiphase and multicomponent. If the organic contaminants are absorbed into the soil organic matter,it will be difficult to be cleared and degraded. Surfactants have amphipathic groups. After solubling in water, they will form micelles which wrap up the hydrophobic organic contaminants and increasing their solubility to eluted the organic contaminants from the soil. Based on the overview of common remediation methods of soil organic contamination, this article particularly describes mechanisms and influencing factors of surfactants,introduces applied prospect of this technology,and finally,elaborates the thinking to the existing issues.