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目的通过对石家庄市某小区生活饮用水疑似污染事件进行调查,分析生活饮用水受到污染的原因,探讨水污染事件的预防控制措施。方法按照《生活饮用水卫生标准》、《生活饮用水标准检验方法》对现场及整改后的末梢水的色度、臭和味、pH值等指标进行采样检测。结果整改前生活饮用水呈现蓝色、有异味、pH值(9.77)均超出标准;整改后色度、臭和味、pH值(7.39)均符合标准。结论加强二次供水管网的规范化管理,禁止城市二次供水管网与其他管网相接通,防止饮用水污染。
Objective To investigate the suspected contamination of domestic drinking water in a district of Shijiazhuang and analyze the reasons of drinking water pollution and to explore the prevention and control measures of water pollution incidents. Methods According to the standards of drinking water health standard and standard drinking water test, the samples were tested for the chromaticity, odor and taste, pH value and other indicators of the spot and the rectified peripheral water. Results Before the rectification, the drinking water showed blue color and odor, and the pH value (9.77) exceeded the standard. After the rectification, the color, odor and taste, pH value (7.39) all met the standard. Conclusion Strengthen the standardized management of the secondary water supply network, prohibit the city secondary water supply pipe network connected with other pipe network, to prevent drinking water pollution.