真空紫外耦合多级过滤深度处理自来水中试

A Pilot Study on Vacuum Ultraviolet Coupled with Multistage Filtration for Advanced Treatment of Tap Water

采用处理能力为1.5 m^(3)/d的真空紫外耦合多级过滤系统对市政供水管网末端出水进行处理,连续监测该系统对管网末端出水中有机微污染物(莠去津)、可同化有机碳(AOC)、微生物、余氯、消毒副产物(三氯甲烷)和溶解性有机物的去除效果。结果表明,该系统在运行期间可以将水中的莠去津全部去除,出水AOC保持在70μg/L以下,菌落总数保持在10 CFU/mL以下。此外该系统对饮用水中溶解性有机物也有很好的去除效果。该系统可以有效地提升管网出水水质,为人民群众的饮用水健康安全提供保障。

A vacuum ultraviolet coupled with multistage filtration system with a treatment capacity of 1.5 m^(3)/d was employed to treat the effluent from the end of a municipal water supply network.The performances of the system for the removal of organic micropollutants(atrazine),assimilable organic carbon(AOC),microorganisms,residual chlorine,disinfection byproducts(trichloromethane)and dissolved organic matter were continuously monitored.The system removed all atrazine in water during the operation.The effluent AOC was always less than 70μg/L,and the total number of microbial colonies was below 10 CFU/mL.In addition,the system also had a good removal efficiency on dissolved organic matter in drinking water.The system effectively improved the water quality of the water supply network and ensured the health and safety of drinking water for the people.