高级氧化技术在氯苯类污染地块修复治理中的应用——以某有机污染场地小试为例

Application of Advanced Oxidation Technology in the Remediation and Treatment of Chlorobenzene-Contaminated Plots—A Case Study of an Organic Contaminated Site

摘要: 原位高级氧化技术在国内有机污染场地修复中应用广泛，结合某污染场地实际污染情况、水文地质条件，通过现场原位高压注射臭氧–过氧化氢两类氧化药剂的试验，结合连续监测数据，确定臭氧–过氧化氢高级氧化技术可真实有效去除地下水中的1-氯-4-(三氟甲基)-苯、2,5-二氯三氟甲苯、3,4-二氯三氟甲苯，注药5 d后水体中污染物去除率达90%以上。停止注射药剂，土壤中污染物将向地下水中迁移，造成地下水中污染物浓度回升。

Abstract: In-situ advanced oxidation technology has been widely used in the remediation of domestic organic contaminated sites. Combined with the actual pollution situation and hydrogeological conditions of a contaminated site, through the test of in-situ high-pressure injection of ozone-hydrogen peroxide, and the analysis of continuous monitoring data, it was determined that the ozone-hydrogen peroxide could effectively remove 1-chloro-4-(trifluoromethyl)-benzene, 2,5-dichlorotrifluorome- thylbenzene and 3,4-dichlorotrifluoromethylbenzene of groundwater, and the removal rate of pollutants in water was more than 90% after injecting of 5 days. If stopped to inject the chemical agents, the pollutants in the soil would migrate to the groundwater, causing the concentration of pollutants in the groundwater to rise.