城市自建供水设施的水质安全调查与评价  

Investigation and Evaluation of Water Quality Security in Self-constructed Water Supply Facilities

作　　者：雷萍[1] 常爱敏[1] 管运涛[2] 刘佳[2] 黄深[2] 

机构地区：[1]深圳市水质检测中心,广东深圳518036 [2]清华大学深圳研究生院,广东深圳518055

出　　处：《中国给水排水》2007年第14期1-3,共3页China Water & Wastewater

基　　金：深圳市2005年度小型水利与水土保持专项基金资助项目

摘　　要：对某市22个自建供水设施的出水水质进行了调查,同时依据水环境质量评价"评分制法"设计了水质安全因子公式,对水质安全进行评价。结果表明,9个供水设施的出水水质为"安全"级别,占调查总数的40.9%;5个供水设施的出水水质为"不安全",占22.7%;8个供水设施的出水水质为"极不安全",约占36.4%;自建供水设施的主要不安全水质指标有感官指标、细菌总数、铁、锰等,超标率均在50%以上,对于采用二氧化氯消毒的供水设施,有69%的自建供水设施出水存在亚氯酸盐浓度超标的现象。因此,城市自建供水设施亟需加强监控和管理,以保障供水水质安全。The outlet water quality of 22 self-constructed water supply facilities was investigated, and the water quality safety was evaluated by a security factor formula designed from the scoring method used for aquatic environmental quality evaluation. The results show that the nine facilities （40.9%） produce secure water, the five facilities （22. 7% ） produce insecure water, and the eight facilities （36.4%） produce very insecure water. The main insecure water quality indexes are sensory indexes, total bacteria counts, Fe^3＋ , Mn^2＋ and so on. Above 50% of them exceed the standards. In addition, chlorite concentration exceeds the standard in 69% of outlet water of water supply facilities using ClO2 as disinfectant. Therefore, the monitoring and management of the self-constructed water supply facilities should be strengthened to ensure water quality security.

关 键 词：自建供水设施 饮用水水质 评分制法 安全因子 

分 类 号：TU991.21[建筑科学—市政工程]