文献类型：期刊文献

英文题名：Remediation performance of different enhanced Fe(II)-based advanced oxidation processes on groundwater contaminated by multiple mixed chlorinated hydrocarbons: Removal efficiencies, costs, and optimal systems

作者：Zhou, Zhengyuan[1];Habib, Mudassir[1];Xu, Zhiqiang[1];Zeng, Guilu[1];Yang, Rumin[1];Sui, Qian[1];Lyu, Shuguang[1]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2024

卷号：479

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20234915145311);WOS:【SCI-EXPANDED(收录号:WOS:001164824100001)】；

基金：Acknowledgments This study was financially supported by a grant from the National Natural Science Foundation of China (No. 41977164) .

语种：英文

外文关键词：Chlorinated hydrocarbons; Enhanced advanced oxidation processes; Reactive species; Applicable system; Groundwater remediation

摘要：Conventional Fe(II)-based advanced oxidation processes required enhancement to achieve desired contaminant removal. In this study, the introduced enhancers were divided into four categories: organic acids-based enhancers, inorganic reductants, slow-release iron substances, and short-chain alcohols or acids. Chlorinated hydrocarbons (CHCs) were chosen as the targets and classified into three groups: chlorinated olefins, nonperchlorinated alkanes, and perchlorinated alkanes. The remediation effects of different enhanced systems (oxidant/Fe(II)/enhancer) on different types of CHCs were systematically examined. The predominant reactive species were identified and elucidated to provide the most applicable technique for the remediation of each type of chlorinated hydrocarbon. Their dechlorination and mineralization degree were investigated as well. Meanwhile, a complete set of remediation strategies for multiple mixed CHCs in contaminated groundwater were formed by combining the remediation efficiencies, costs, and toxicity of the enhancers, which could provide farreaching implications for the systemic governance of CHCs in practical applications.