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饮水卫生是预防肠道传染病的关键性措施之一,农村饮水卫生是当前预防医学的一个难题。笔者研制出一种新的供水方式——封闭式压水井(以下简称封闭井),并对其水质的卫生学指标进行了连续两年实验观察。 封闭井是将井管打入地下第二个含水层(距地表20～30m),由井管和机头两部分组成。机头的
Drinking water hygiene is one of the key measures to prevent intestinal infectious diseases. Drinking water in rural areas is a difficult problem in preventive medicine. The author developed a new water supply - closed pressure wells (hereinafter referred to as closed wells), and its water quality hygiene indicators for two consecutive years of experimental observation. The closed well is a well pipe that penetrates into the second underground aquifer (20 ~ 30m above the earth’s surface) and consists of a well pipe and a nose. Nose