The research status of pipe dual water supply in China are presented, which concludes the common water supply form, treatment technology, disinfection methods and so on in practical engineering.

介绍了我国管道分质供水技术的研究现状，包括在实际工程中的常用供水形式、处理技术和消毒方法等；同时介绍了管道分质供水工程在我国几个典型城市的应用情况。

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Water supply comes from the melting water of ice and snow as well as rainfall. Some places have groundwater in the form of swamp lawn and lakes.

水源补给以冰雪融水和降雨混合为主，部分地区有地下水补给，形成了大量的沼泽草地和湖泊。

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Rebirth water and transport water pipe take form that disperse treatment and disperse supply.

再生水和输水管道采取分散处理、分散供给的形式。

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The machine blends iron, bleach and sodium hydroxide to form a dark purple liquid mixture of ferrate, salt and water that gets metered into the water supply. (The color disappears instantly as it reacts with the water.) Common disinfectants ozone and chlorine can turn the water cloudy or, worse, leave behind harmful chemical by-products.

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