屋面径流的细菌学特性调查与消毒效果评价  

Investigation on Bacteriological Characteristics of Roof Runoff and Disinfection Efficiency

作　　者：蒋敏杰[1] 李田[1] 邓文珊[1] 卢小艳[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《中国给水排水》2010年第13期93-97,共5页China Water & Wastewater

基　　金："十一五"国家科技支撑计划重大项目(2008BAJ08B13)

摘　　要：在监测上海市区屋面径流细菌学特性的基础上,分析了屋面径流细菌学指标的影响因素,并探讨了常规处理方法对细菌学指标的去除效果。结果表明,上海市区屋面径流的微生物污染较严重,其中细菌总数受屋面周围环境的影响较明显,而与屋面材料及构造关系不大;总大肠菌群数则受屋面动物活动的影响较显著。简单的过滤处理不能解决屋面径流的微生物污染问题,消毒是非常必要的,初始加氯量为2.0～2.5mg/L时足以保证存放2d雨水的细菌指标的安全性。Based on monitoring the bacteriological characteristics of roof runoff in Shanghai, the factors affecting bacteriological indicators of roof runoff were analyzed, and the removal efficiency of bacteriological indicators by conventional treatment methods was discussed. It is showed that the roof runoff is seriously polluted by microorganisms. The total bacterial count is mainly influenced by the surrounding environment of the catchment roof, while the influence of roof material and structure is unobvious. The total coliform count is affected by the activities of birds and animals. It is impossible to eliminate the microbial contamination just by simple filtration, so disinfection is important to resolve the problem, and when the initial chlorine dosage is 2.0 to 2.5 rag/L, the rainwater stored within 2 days is safe to use.

关 键 词：屋面径流 细菌总数 总大肠菌群 过滤 消毒 

分 类 号：X830[环境科学与工程—环境工程] X172