电催化加氢脱氯技术处理有机氯化物废水研究进展  

Research progress on organochlorine wastewater treatment by electrocatalytic hydrodechlorination technology

作　　者：何文妍 徐思言 杨思远 王启镔 HE Wenyan;XU Siyan;YANG Siyuan;WANG Qibin(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,China;Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation,Xi’an University of Science and Technology,Xi’an 710054,China;School of Environment,Tsinghua University,Beijing 100084,China)

机构地区：[1]西安科技大学地质与环境学院,西安710054 [2]西安科技大学,陕西省煤炭绿色开发地质保障重点实验室,西安710054 [3]清华大学环境学院,北京100084

出　　处：《环境工程学报》2024年第12期3421-3432,共12页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金青年项目(52000149);陕西省教育厅专项科研计划项目(22JK0457)。

摘　　要：有机氯化物作为一种典型的持久性有机污染物,种类繁多,能够通过各种途径进入环境,对人类健康和生态环境构成严重威胁。目前,我国华中、华东、华南和西北地区的水体中均检测出有机氯化物。因而,如何对有机氯废水进行绿色、高效处理已成为当前地下水修复过程中的重要问题。电催化加氢脱氯技术(EHDC)具有操作简单、反应条件温和,无二次污染的优点,故受到了研究者的广泛关注。该研究进展概述了EHDC技术处理有机氯废水的机理和优势,重点从电极基材、催化剂结构和组成、有机氯化物的底物结构三方面,对近年来EHDC技术降解有机氯废水的研究工作进行了梳理;在现有研究的基础上,就催化剂的负载效率及活性、H^(*)的产生和储存效能、电极成本、脱氯产物可生化性等方面的发展方向给出了建议,以期为实现有机氯废水的高效脱氯脱毒提供参考。Organochlorides,as a kind of typical persistent organic pollutant,with a great variety of species,can enter the environment in various ways,posing a severe threat to human health and the ecological environment,which have been detected in water bodies across Central,East,South,and Northwest China.Therefore,it is vital to find an efficient and environmentally friendly way to treat organochlorides in groundwater restoration.Electrocatalytic hydrodechlorination(EHDC)technology,known for its ease of operation,mild reaction conditions and no secondary pollution,has received a widespread attention from researchers.This paper outlined the mechanism and advantages of EHDC in treating organochlorine wastewater and emphasized the electrode substrate,catalyst structure and composition,and substrate structure of organochlorides during sorting out the research work of degrading the organochlorine wastewater by EHDC technology in recent years.Based on the current research,the proposal on the development directions of catalyst loading efficiency and activity,H^(*)generation and storage efficiency,electrode cost,and biodegradability of dechlorinated products were made.This work aims to provide a reference for achieving efficient dechlorination and detoxification of organochlorine wastewater.

关 键 词：电催化加氢脱氯 有机氯化物 持久性污染物 活性氢 

分 类 号：X703[环境科学与工程—环境工程]