摘要
臭氧具有较强的氧化性,在饮用水处理中得到广泛应用,以臭氧为基础的高级氧化体系可以提高臭氧的氧化能力。本研究构建一种快速高级氧化体系——臭氧/硫代硫酸钠(O_(3)/TSA)体系,分析O_(3)/TSA体系的反应特性,考察TSA投加量、自由基捕获剂对反应体系中去乙基莠去津(DEA)的去除效果。结果表明,TSA可以促进O_(3)产生羟基自由基(·OH),反应时间为0.4 s时,O_(3)与TSA的最佳摩尔比为10∶3,O_(3)/TSA体系的自由基产率为17%。
Ozone has strong oxidizing properties and is widely used in drinking water treatment,advanced oxidation systems based on ozone can improve the oxidation ability of ozone.This study constructs a rapid advanced oxidation system which is called ozone/thiosulphate(O_(3)/TSA)system,analyzes the reaction characteristics of the O_(3)/TSA system,and investigates the removal effect of diethylatrazine(DEA)in the reaction system by TSA dosage and free radical capture agent.The results show that TSA can promote the production of hydroxyl radicals(·OH)in O_(3),at a reaction time of 0.4 s,the optimal molar ratio of O_(3)and TSA is 10∶3,and the free radical yield in the O_(3)/TSA system is 17%.
作者
李婷婷
杨兢欣
张彬声
LI Tingting;YANG Jingxin;ZHANG Binsheng(Shenzhen Vanke Property Service Co.,Ltd.River Water Quality Branch,Shenzhen 518055,China;School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,China;Shenzhen Environmental Science Research Institute,Shenzhen 518055,China)
出处
《中国资源综合利用》
2023年第8期14-17,共4页
China Resources Comprehensive Utilization
关键词
臭氧/硫代硫酸钠体系
反应特性
自由基产率
饮用水
氧化效能
ozone/thiosulphate system
reaction characteristics
free radical yield
drinking water
oxidation efficiency
作者简介
李婷婷(1991-),女,山东聊城人,硕士,工程师。研究方向:水污染控制。
