上海市城市管网水质研究及对策

Study and countermeasures on water quality in municipal distribution network in Shanghai

对上海市城市管网水质研究表明:上海市供水管网水质基本稳定,现有管网对管网水质影响不大,全市屋顶水箱水质与管网水质基本没有差别,但需进一步改善水箱密封性能及水箱材质,同时有关部门应立法加强对屋顶水箱管理。居民住宅或街坊目前使用的镀锌钢管需尽快有计划地进行改造;要进一步明确二次供水职责,提高管网水质的稳定性。科学合理的管网设计也是提高水质的有效措施。

In Shanghai, the municipal water distribution network works stable, but a plan to renovate the old water supplying lines without anticorrosive coatings constructed has been drafted. Also some roof water tanks in this city are assigned to improve for their tightness and structure materials, and further regulations on management of roof water tanks have to be issued. The zinc coated steel pipes, which are still applied widely in residential quarters and houses have to be replaced by new pipes as soon as possible. The water quality is sensitive to the development of secondary water supply in the city, it is necessary to pointed out that secondary water supply must be helpful to the stability of the network water quality. The scientific and appropriate design of water network, the real time water quality monitoring and informational management is needed to improve the municipal network water quality.