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目的了解合肥市集中式供水单位卫生现状,为进一步贯彻实施GB 5749—2006《生活饮用水卫生标准》提供对策。方法于2011年采取整群抽样的方法对合肥市全部市级市政水厂、县级市政水厂、市级企业自建水厂和乡镇水厂的卫生现状及水质自检能力进行调查。结果在卫生管理方面,市级市政水厂总体好于其他水厂。目前合肥市共有各类水厂50家,其中,市级水厂、县级水厂、自建水厂、乡镇水厂分别占10%,6%,6%,78%。出厂水不合格的主要单位为单位自建水厂和乡镇水厂,不合格项目主要是浑浊度、消毒剂余量、总大肠菌群;抽检末梢水230份,合格213份,合格率92.6%。结论合肥市各类集中式供水单位在卫生管理方面有待加强,水质处理工艺需要进一步完善和改进,水质自检能力亟待提高。
Objective To understand the status quo of centralized water supply units in Hefei and to provide countermeasures for further implementing GB 5749-2006 Standard of Drinking Water Quality. Methods The cluster sampling method was used to investigate the health status and the self-checking ability of water in municipal waterworks, municipal waterworks, self-built municipal waterworks and township waterworks in Hefei. Results In the field of health management, municipal municipal waterworks are generally better than other waterworks. At present, there are 50 water plants of all kinds in Hefei, among which municipal water plants, county water plants, self-built water plants and township water plants account for 10%, 6%, 6% and 78% respectively. The main units of unqualified factory water were self-built waterworks and township waterworks. The unqualified items were mainly turbidity, disinfectant balance and total coliforms; sampling of 230 peripheral water and 213 qualified ones with a pass rate of 92.6% . Conclusion All kinds of centralized water supply units in Hefei need to be strengthened in health management. The water quality treatment process needs to be further improved and improved, and the self-checking capability of water quality needs to be improved urgently.