中山市2007-2009年新建二次供水设施卫生学评价

目的对中山市新建二次供水设施工程进行卫生学评价,研究相关工程技术措施,为二次供水工程建设提供依据;并针对本市二次供水设施工程现状提出提升二次供水工程建设水平的相关技术措施。方法依据国家相关规范标准,对相关项目的设计资料、现场调查情况、水质抽检结果等进行评价。结果大部分二次供水设施据初步评价建议进行了改善,经规范冲洗消毒水样抽检合格率100.00%。新、旧设施的水质检测结果比较,新设施水质显著提高:浑浊度2008年u=4.48,P<0.01;2009年u=8.52,P<0.01;差异均有统计学意义。耗氧量:2008年u=6.72、P<0.01;2009年u=6.16、P<0.01;差异均有统计学意义。结论二次供水的卫生安全保障、设施的规范建设、有效的监管非常重要,必须高度重视。

Hygiene evaluation of the new secondary water supply in Zhongshan city 2007-2009

Objective To provide the basis for the secondary water supply construction projects through the hygiene evaluation of the new secondary water supply projects and research the related engineering technologies and measures.Methods According to the related national standards and norms,the projects were evaluated with their design information,field investigation and the results of water quality test.Results Most secondary water supply facilities were reformed and improved according to the suggestions in the pre-evaluation,and after standardized washed and sterilized the pass rate of the water samples was100%.Comparing with the test results of the old facilities,the water quality of the new facilities raised obviously,turbidity with P<0.01(u=4.48) in 2008 and P<0.01(u=8.52) in 2009,oxygen consumption with P<0.01(u=6.72)in 2008 and P<0.01(u=6.16) in 2009.Conclusion It is important to ensure the hygiene safety of secondary water supply,standardized construction of the facility and effective regulations should be paid serious attention.