摘要
介绍了紫外线消毒技术在二次供水中的应用情况,并进行了二次供水紫外线消毒实验。结果表明:①紫外线消毒会使二次供水中的余氯略有降低,但是仍满足我国《生活饮用水卫生标准》(GB 5749—2006)的限值要求;②紫外线消毒在80 m J/cm^(2)辐射剂量内仅小幅改变水中部分有机物的官能团;③紫外线消毒对二次供水中消毒副产物(DBPs)的浓度和生成几乎没有影响。
Application of ultraviolet disinfection technology in secondary water supply was introduced,and an ultraviolet disinfection experiment for secondary water supply was conducted.The results showed that,ultraviolet disinfection slightly reduced the residual chlorine in the secondary water supply,but the residual chlorine content still met the limit requirements of Standards for Drinking Water Quality(GB 5749-2006).When the ultraviolet radiation dose was within 80 m J/cm^(2),the functional groups of some organic compounds in the water only slightly changed.Ultraviolet disinfection had almost no effect on concentration and formation of disinfection by-products(DBPs)in the secondary water supply system.
作者
曹文烽
黄天寅
孙文俊
石景东
CAO Wen-feng;HUANG Tian-yin;SUN Wen-jun;SHI Jing-dong(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;School of Environment,Tsinghua University,Beijing100084,China;Research Institute for Environmental Innovation<Suzhou>Tsinghua,Suzhou 215163,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2021年第3期60-64,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(51778323、51761125-013)
国家水体污染控制与治理科技重大专项(2012ZX07404-002、2017ZX07108-002、2017ZX07502-003)。
关键词
二次供水
紫外线消毒技术
消毒副产物
secondary water supply
ultraviolet disinfection technology
disinfection byproducts
