摘要
紫外光具有绿色环保、不影响水质的优点,基于紫外的高级氧化技术(UV-AOPs)在水处理领域一直备受关注。氧化剂在紫外光照下可生成活性自由基,进而提高体系的氧化能力。对紫外/过氧化氢、紫外/过硫酸盐、紫外/氯、紫外/氯胺体系的反应机理进行了概述,阐述了UV-AOPs在水中有机污染物、消毒副产物及细菌控制中的研究进展,并对不同氧化体系的特点进行了对比分析,阐述了反应过程中氧化产物与毒性变化之间的关系。在此基础上,后续研究应提高UV-AOPs的效率、优化技术应用的综合评估。
Ultraviolet light is an environmental friendly technology and does not affect water quality.Ultraviolet-based advanced oxidation processes(UV-AOPs)have received attention in the field of water treatment.Free radicals generated by UV/oxidants can improve the oxidation ability of the system.This paper summarized the activation mechanisms of UV/hydrogen peroxide,UV/persulfate,UV/chlorine as well as UV/chloramine,and introduced the latest research in the control of organic pollutants,disinfection by-products and bacteria.On the basis of comparing the characteristics,oxidation products,and toxicity of different oxidation precess,this paper proposed that improving the efficiency of UV-AOPs and optimizing the evaluation of technology applications are the key research in future.
出处
《化工设计通讯》
CAS
2020年第11期28-30,共3页
Chemical Engineering Design Communications
基金
国家重点研发计划课题(2019YFC0408801)。
关键词
水处理
紫外光
高级氧化技术
有机污染物
消毒副产物
细菌
water treatment
ultraviolet light
advanced oxidation process
organic pollutant
disinfection by-product
bacteria
