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目的:了解兰州市2009年-2010年城市生活饮用水的水质情况。方法:随机选取20个自备类水厂作为采样点,采集出厂水和末梢水共68份,按GB/T5750.5-2006《生活饮用水标准检验方法无机非金属指标》对氟化物、氯化物、硫酸盐、氰化物、硼、硝酸盐氮和氨氮7个项目进行检测,按GB5749-2006《生活饮用水卫生标准》进行评价。结果:共检测68份水样,合格率为80.9%,其中出厂水49份,合格率为73.5%,末梢水19份,合格率为100%。结论:兰州市城市生活饮用水的水质良好,但是出厂水的合格率较低,建议相关主管部门应加强对水厂建设的投入和制水工艺的改进,政府部门应加强对环境污染的治理和水源水的保护。
Objective: To understand the water quality of urban drinking water in Lanzhou from 2009 to 2010. Methods: Totally 20 self-owned water plants were randomly selected as sampling points. A total of 68 samples were collected from the factory water and the peripheral water. According to GB / T5750.5-2006, “Inorganic and Non-metallic Indicators for Standard Test Method for Domestic Drinking Water”, fluoride, chlorine Chemical, sulfate, cyanide, boron, nitrate nitrogen and ammonia nitrogen seven projects for testing, according to GB5749-2006 “drinking water health standards” for evaluation. Results: A total of 68 water samples were tested with a pass rate of 80.9%, of which 49 were ex-factory water with a pass rate of 73.5% and 19 peripheral waters with a pass rate of 100%. Conclusion: The water quality of urban drinking water is good in Lanzhou City, but the passing rate of manufactured water is low. It is suggested that relevant authorities should strengthen the investment in waterworks construction and the improvement of water making technology. Government departments should strengthen the control of environmental pollution and Water source protection.