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以南水北调引江原水为研究对象,比较常规工艺下单独加氯、紫外线加单点加氯、紫外线加两点加氯3种消毒方式的处理效果差别。中试实验结果表明,紫外线加两点加氯消毒对控制消毒副产物三卤甲烷的生成作用明显高于单独加氯消毒和紫外线加单点氯消毒。3种不同消毒方式对引江水均有较好的灭菌效果。与单独加氯消毒相比,滤后水经紫外消毒环节的细菌总数有较大幅度下降。在实际生产中,推荐采用紫外线加两点加氯联合消毒技术。
Taking the water from the south to the north of the country as the research object, compared with the conventional technology, the effects of three kinds of disinfection methods such as chlorination alone, UV plus single point chlorination, UV plus two points chlorination were compared. Pilot test results show that UV plus two chlorination disinfection by-product of trihalomethanesulfonic acid formation was significantly higher than the chlorinated disinfection alone and UV plus single-point chlorine disinfection. Three kinds of different disinfection methods have good sterilization effect on water diversion. Compared with the separate chlorination disinfection, filtered water after UV disinfection of the total number of bacteria have a more substantial decline. In the actual production, it is recommended to use ultraviolet plus chlorine disinfection technology.