紫外/氯消毒在饮用水处理中的应用

Application of UV/Chlorine Disinfection in Drinking Water Treatment

饮用水处理中常用的消毒方式是氯消毒。氯消毒在控制微生物量的同时势必会增加消毒副产物产生的风险。为了降低这种风险,将紫外/氯消毒方式应用到饮用水处理过程中。本试验以炭池出水及紫外消毒系统出水为研究对象,考察了紫外线对炭池出水微生物的灭活效果和添加不同浓度消毒剂(次氯酸钠)后的微生物灭活效果,以及消毒副产物的生成情况。研究结果表明:在饮用水消毒处理过程中,采用紫外/氯消毒方式,在较低的氯消毒剂投加量下,可以更有效地控制水中的微生物数量,进而控制消毒副产物的生成量。

Chlorine disinfection process is a common disinfection method in drinking water treatment process. When the process of chlorine disinfection is applied in controlling nfierobe, it can increase risks generating by disinfection byproducts. The process of UV/ chlorine disinfection is utilized in drinking water treatment plants to reduce this risk. The object of this study was effluen water from ear- bon tank and UV disinfection system. The experiment investigated the inactivation of inieroorganisms by UV disinfection and chlorine with different concentration. Meanwhile, the situation of disinfection byproducts was also considered. The result showed that the amount of inieroorganisms in water could be controlled more effectively by UV/chlorine disinfection in the disinfection process of drinking water treatment, and the production of disinfection byproducts could be controlled.