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目的了解东莞市农村水厂供水现状及改善水质对策。方法选择76家管理区、乡村集中供水水厂为调查对象;现场调查水厂的基本情况并采集水样进行化验。测定及结果评价按《地表水环境质量标准》(GB3838-2002)及《生活饮用水卫生标准》(GB5749-2006)执行。结果农村水厂水源水合格率为49.15%,出厂水合格率为69.05%,管网水合格率为61.02%;镇级以上水厂水源水合格率为24.71%,出厂水合格率为98.14%,管网水合格率为96.14%。镇级以上水厂与农村水厂的水源水、出厂水、管网水均有显著性差异,农村水厂的水源水要好些,而镇级以上的出厂水、管网水合格率则比农村水厂高得多。结论农村水厂供水规模小、水处理工艺简陋、技术落后、消毒设备不完善、卫生管理落后、水源水受生物性污染和化学性污染比较严重,饮用水卫生安全隐患比较多,必须加大力度进行改造。
Objective To understand the current situation of water supply in rural waterworks and measures to improve water quality in Dongguan City. Methods 76 management areas and rural centralized water supply plants were selected as the investigation objects; the basic situation of waterworks was investigated on site and water samples were collected for laboratory tests. Determination and evaluation of results according to “Surface Water Environmental Quality Standards” (GB3838-2002) and “drinking water health standards” (GB5749-2006) implementation. Results The qualified rate of water and source water in rural waterworks was 49.15%, the passing rate of factory water was 69.05%, the passing rate of pipe network water was 61.02%; the passing rate of water source and source water of township level and above was 24.71% and that of factory water was 98.14% Tube water passing rate was 96.14%. Water level above the town level and rural waterworks, waterworks, water pipelines have significant differences, rural waterworks water source water to be better, and above the town level factory water, pipelines pass rate than rural The water plant is much taller. Conclusion The scale of water supply in rural waterworks is small, the water treatment technology is primitive, the technology is backward, the disinfection equipment is not perfect, the health management lags behind, the water source water is more serious due to biological and chemical pollution, and there are more hidden dangers in health and safety of drinking water. To transform.