摘要
UV/SO_(3)^(2-)是一种新型的高级还原技术,能够产生具有强还原性的水合电子(eaq-)并高效还原降解目标污染物。该文介绍了UV/SO_(3)^(2-)工艺降解污染物的基本原理,概述了紫外光波长及强度、溶液pH、SO_(3)^(2-)初始浓度、反应温度、溶解氧、常见共存物质等因素对UV/SO_(3)^(2-)体系降解污染物效率的影响,分析了该工艺体系国内外研究现状及现有问题,并对未来研究方向进行了展望。
As a new advanced reduction process,UV/sulfite system can produce strong reductive species,i.e.,hydrated electron(eaq-),and thus result in efficient degradation of target pollutants.In this study,the degradation mechanism of pollutants by UV/sulfite was introduced.The effects of ultraviolet light wavelength,light intensity,solution pH,initial concentration of sulfite,reaction temperature,dissolved oxygen and common water matrix on removal efficiency of contaminants in UV/sulfite system were also summarized.Finally,current research situation on this technology around the world was analyzed,and future researches were prospected as well.
作者
刘胜兰
刘义青
付永胜
LIU Shenglan;LIU Yiqing;FU Yongsheng(Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 611756,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2020年第11期172-179,共8页
Environmental Science & Technology
基金
四川省科技厅重大科技专项(2018SZDZX0026)
中央高校基本科研业务费科技创新项目(2682018CX32)。
