Research On Management Mode Of City Water Supply By Different Quality In Tianjin

No water, no city development. During the progression of quicken thecity construction, water scarcity made of "aggravation of water disaster,scarcity of water resource, worse of water environment"is happeningand is even more aggravated in the end of the twentieth century. In themiddle of the 20th century, water crisis will be the important factor topuzzle the continuing development of my country's economy. No matterthe quantity or the pollution of water, it is a big, unavoidable problem toour city's managers and policy-makers to combine the society, economyand resource with the environment harmoniously in the high risk ofwater.To be citified is the unresisted tendency to our country to turn into acivilized strong country. But during this progression, it is much moreoutstanding that water supply, drainage, water environmentalprotection and flood or waterlog control which are centered with the city."Water problem"which we have talked about for many years is becomemore and more heavier and in some areas it has already changed into"water crisis". To resolve the problem of city water supply, we shouldnot only postpone city water absence by transport water through bigscale and long distance, but also save water, control water resourcepollution and use the water resource reasonable. Many developedcountries make their effort to enhance the waste water treatment whichis based on water resource protection, and firstly they realize repeatedusing of industrial water.Our city water supply system adopts the uniform water supply mode forlong time. That is, it is supplied by drinking water standard no mater itsuse. This way is practicable under past undeveloped economy, no muchwater using quantity and simplex using mode. But nowadays, goodwater resource is absent and water using mode is various. If we still usethe uniform water supply mode, it is big waste to the resources of water,manpower, material and energy. And our uniform water supply systemcan not be satisfied with people's need to good quality drinking water.So ,"water supply by different quality"is come into our schedule.