酚污染地下水化学氧化修复技术进展

Technical advances in chemical oxidation remediation of groundwater contaminated by phenols

酚类化合物属于优先控制的有机污染物之一,开展酚污染地下水原位修复方法的研究具有重要的现实意义。化学氧化是目前处理酚污染地下水的有效方法,常用的化学氧化方法包括:Fenton氧化过硫酸钠活化氧化臭氧氧化。本文系统综述了修复酚污染地下水各种氧化技术的机理影响因素修复效果适用范围优缺点,并提出在低渗透性土层深度污染时,化学氧化、增溶淋洗、电动修复技术的联合是发展方向。

The phenolic compound is a priority toxic organic contaminant;it is of great significance to research on the in situ remediation of phenolic compound polluted groundwater.Chemical oxidation technology is an effective method to deal with phenol pollution.Commonly used chemical oxidation methods include Fenton oxidation,persulfate activation oxidation,and ozone oxidation.This paper systematically reviews the mechanism,impacting factors,remediation effect,application scope,advantages and disadvantages of various oxidation technologies of phenolic contaminated groundwater and suggests that combination of chemical oxidation remediation and electrokinetic remediation and surfactant enhanced aquifer remediation be the development direction when pollution expands deep into low-permeability soil.