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目的比较台州市椒江区实施城乡供水一体化工程前后末梢水合格率、出厂水合格率和项次合格率。方法分别于2009—2010年和2013—2014年对椒江区生活饮用水水质情况进行监测,采样及检测参照GB/T5750—2006《生活饮用水标准检验方法》要求进行;检测结果根据GB 5749—2006《生活饮用水卫生标准》进行评价。结果工程前后检测水样合格率由53.45%上升至94.83%(P<0.01),末梢水合格率由55.56%上升至95.42%(P<0.01),工程后浑浊度、氯化物、色度、铁、游离余氯、细菌总数及总大肠菌群合格率均高于工程前(P<0.01);出厂水合格率由47.13%上升至90.48%(P<0.01),工程后氯化物合格率高于工程前(P<0.05)。结论椒江区实施城乡供水一体化工程前后水质改善明显,生活饮用水合格率明显提高。
Objective To compare the qualified rate of peripheral water before and after the implementation of urban-rural water supply integration project in Jiaojiang District of Taizhou City, the qualified rate of outgoing water and the passing rate of each item. Methods The quality of drinking water in Jiaojiang District was monitored in 2009-2010 and 2013-2014 respectively. Sampling and testing were conducted according to the requirements of GB / T5750-2006 Standard Test Method for Domestic Drinking Water. The test results were in accordance with GB 5749-2006 “Drinking water health standards” for evaluation. Results The passing rate of water samples before and after the project increased from 53.45% to 94.83% (P <0.01), and the percent of qualified water from the end of the project increased from 55.56% to 95.42% (P <0.01). The turbidity, chloride, , The free residual chlorine, the total number of bacteria and the total coliform bacteria pass rate were higher than those before the project (P <0.01); the qualified rate of ex-factory water increased from 47.13% to 90.48% (P <0.01) Before the project (P <0.05). Conclusion Before and after the implementation of urban-rural water supply integration project in Jiaojiang District, the water quality improved significantly, and the passing rate of drinking water improved significantly.