高级还原技术:一种水处理新技术  

Advanced Reduction Processes:A Novel Technology for Water Treatment

作　　者：杨世迎[1,2,3] 张宜涛[1,3] 郑迪[1,3] 

机构地区：[1]海洋环境与生态教育部重点实验室,青岛266100 [2]山东省海洋环境地质工程重点实验室,青岛266100 [3]中国海洋大学环境科学与工程学院,青岛266100

出　　处：《化学进展》2016年第6期934-941,共8页Progress in Chemistry

基　　金：国家自然科学基金项目(No.21107101)资助~~

摘　　要：最近3年,水处理领域出现了高级还原技术(advanced reduction processes,ARPs)的新概念,该技术将紫外光(UV)等活化手段与亚硫酸盐(SO_3^(2-))、连二亚硫酸盐(S2O_4^(2-))等还原剂相结合,从而产生强还原性自由基,如水合电子(e_(aq)^-)、氢原子(H·)等,氯代有机物、氟代有机物等难降解有机污染物和高氯酸盐、溴酸盐、硝酸盐等无机污染物都能得到有效还原去除,在水处理领域有广阔的应用前景。目前,ARPs的研究才刚刚起步,本文在分析其基本原理的基础上,综述了国内外ARPs的研究现状,并就存在问题进行了研究展望,以期促进ARPs的发展。During the past three years,a new group of water and wastewater treatment technologies,called advanced reduction processes（ ARPs）,has been developed by combining activation methods with reducing reagents to yield reducing free radicals,including hydrated electron（ eaq-） and hydrogen atom（ H·）,etc. The most commonly used activation method is UV,and the reducing agent is usually sulfite（ SO_3（2-）） or dithionite（ S_2O_4（2-））. The produced reducing radicals can donate an unpaired electron to a target contaminant and thereby chemically reduce it. Many kinds of stubborn contaminants can be degraded by ARPs,such as chlorinated organic compounds, fluorinated compounds and some inorganic pollutants（ perchlorate, nitrate, bromate,etc.）. So this novel process has a bright future in control of environmental pollutions. However,the ARPs are short of systematic research now. In order to promote the development of ARPs,the present research situation and prospect are reviewed in this paper. And the existing problems are also presented based on the analysis of its basic principles.

关 键 词：高级还原技术 水合电子 氢原子 紫外光 亚硫酸盐 连二亚硫酸盐 

分 类 号：X131.2[环境科学与工程—环境科学]