2019-2021年山东省龙口市饮用水消毒副产物检测分析  

Analysis on detection of disinfection by-products of drinking water, Longkou city, Shandong province,2019-2021

作　　者：刘俊菊 韦会松 林珊 曹伟燕 LIU Jun-ju;WEI Hui-song;LIN Shan;CAO Wei-yan(Longkou City Center for Disease Control and Prevention,Longkou,Shandong,265700,China;不详)

机构地区：[1]龙口市疾病预防控制中心,山东265700

出　　处：《预防医学论坛》2022年第7期555-558,共4页Preventive Medicine Tribune

摘　　要：目的 为了解山东省龙口市饮用水的消毒状况,掌握水中消毒副产物的检测情况,为调节消毒剂的使用量、制定控制政策提供依据。方法 按照GB/T 5750-2006《生活饮用水标准检验方法》,对山东省龙口市2019-2021年饮用水进行水样采集和检测,依据GB 5749-2006《生活饮用水卫生标准》对检测结果进行评价。结果 共检测山东省龙口市2019-2021年饮用水水样228份,12项三氯甲烷、二氯一溴甲烷、一氯二溴甲烷、三溴甲烷、三卤甲烷、四氯化碳、二氯甲烷、三氯乙醛、二氯乙酸、三氯乙酸、2,4,6-三氯酚、余氯均合格的水样178份,合格率为78.07%。消毒副产物不合格的是三卤甲烷和余氯,三卤甲烷在近端、远端、乡镇末梢水中分别高于标准值0.10、0.11~0.20、0.21~0.30倍;余氯在远端、乡镇末梢水中分别低于标准值0.20、0.21~0.30倍。结论 山东省龙口市2019-2021年饮用水消毒副产物(三卤甲烷、余氯)存在超标问题。消毒副产物的形成与水源水水质质量、消毒剂的投入量、氯化消毒工艺等因素有关。Objective To understand the status of drinking water disinfection in Longkou city, and grasp the real-time content of disinfection by-products in the water, so as to provide a basis for regulating the use of disinfectants and formulating control policies. Methods Water samples of drinking water in Longkou city were collected and tested in accordance with GB/T5750-2006 Standard Test Methods for Drinking Water,and the test results were evaluated according to GB 5749-2006 Sanitary Standards for Drinking Water. Results A total of 228 water samples were tested, 12 indicators including chloroform, dichlorobromomethane, chlorodibromomethane, bromomethane, trihalomethane, carbon tetrachloride, dichloromethane, trichloroacetaldehyde, dichloroacetic acid, trichloroacetic acid, 2,4,6-trichlorophenol, residual chlorine were tested, and 178 water samples were qualified for all test indicators, with a pass rate of 78.07%.Trihalomethane and residual chlorine were unqualified disinfection byproducts.The trihalomethane in the near end, the far end and the township water were 0.10,0.11-0.20 and 0.21-0.30 times higher than the standard value respectively.The residual chlorine was 0.20,0.21-0.30 times lower than the standard value in the distal water and township water respectively. Conclusion There was a problem of excessive drinking water disinfection by-products(rihalomethane and residual chlorine) in Longkou city, Shandong province during 2019-2021.The formation of disinfection by-products is related to the quality of the source water, the amount of disinfectant input, and the chlorination disinfection process.

关 键 词：饮用水 消毒 副产物 氯 

分 类 号：R123.1[医药卫生—环境卫生学]