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目的了解湘西南农村集中式供水水质及卫生状况,为政府提供决策依据。方法对2008-2012年湘西南农村集中式供水水质监测资料进行统计、分析,用国家标准进行评价。结果农村集中式供水以地下水为水源占91.56%,地表水源仅占8.44%。出厂水枯、丰水期水总合格率为28.00%、末梢水枯、丰水期水总合格率为20.67%。细菌总数、总大肠菌群、耐热大肠菌群枯水期出厂水、末梢水合格率为63.56%、53.93%、77.63%;65.93%、54.07%、81.78%;丰水期出厂水、末梢水合格率为44.00%、33.63%、61.04%;59.41%、48.15%、64.74%。结论农村集中式供水水源以地下水为主。水质合格率低,主要受微生物指标影响。加强对农村集中式供水水源的保护、改善给水工艺流程及建立严格的工作制度,是提高供水质量的重要措施之一。
Objective To understand the centralized water quality and sanitation status in the rural areas of southwestern Hunan and to provide the government with decision-making basis. Methods The data of centralized water quality monitoring in southwestern Hunan from 2008 to 2012 were statistically analyzed and analyzed by national standards. Results The centralized water supply in rural areas accounted for 91.56% of groundwater and surface water sources accounted for only 8.44%. The factory water dry, wet season total qualified rate of 28.00% of water, the end of dry, wet season, the total passing rate of 20.67% water. The total number of bacteria, total coliforms, heat-resistant coliform bacteria in the dry water factory water, the qualified rate of the terminal water was 63.56%, 53.93%, 77.63%; 65.93%, 54.07%, 81.78% 44.00%, 33.63%, 61.04%, 59.41%, 48.15%, 64.74% respectively. Conclusion The centralized water supply in rural areas is mainly groundwater. Low pass rate of water quality, mainly affected by microbial indicators. To strengthen the protection of centralized water supply in rural areas, to improve water supply process and establish a strict working system is one of the important measures to improve the quality of water supply.