某典型氯代烃污染场地地下水修复设计与工程应用

Research and Design on Groundwater Remediation of A Typical Chlorinated Hydrocarbon Pollution Site

氯代烃为地下水中常见的污染物,以南方某典型氯代烃污染场地地下水为研究对象,通过实验室验证“曝气吹脱+活性碳吸附”组合技术对地下水中氯代烃的去除效果,并进行现场修复中试。结果表明,采用该组合技术可去除地下水中氯代烃,去除率达98%以上,达到修复目标要求,污染物初始浓度对氯代烃的去除基本无影响。工程实践表明该修复组合技术在地下水修复中具有可行性。

Chlorinated hydrocarbons are common pollutants in groundwater.Taking groundwater contaminated with chlorinated hydrocarbons at a typical polluted site in the south as the research object,the combined technology of"aeration stripping+activated carbon adsorption"was validated through laboratory experiments to remove chlorinated hydrocarbons from groundwater,and on-site remediation pilot tests were conducted.The results show that using this technology combination can remove chlorinated hydrocarbons from groundwater,with a removal rate of over 98%,meeting the remediation target requirements.The initial concentration of pollutants has little impact on the removal of chlorinated hydrocarbons.Engineering practice has shown that this remediation combination technology is feasible in groundwater remediation.