The advanced country abolishes sewages and retrieves the type of using
First kind
City sewage treatment plant put flowing water regeneration retrieve, make for irrigate, life miscellaneous water, industry make water Cheng, groundwater subsidize, drinking water source of water,etc., can divide into two following ways.
Deal with simple and easily putting the flowing water, make the secondary use of life or irrigate the water, it deals with unit price relatively low, is generally about new Taiwan dollar of 5 to 10 yuan of each stere.
Deal with simple and easily putting the flowing water, do for make water Cheng, reservoir supplement between water and groundwater mend note, plan with Singapore NEWater plan such as tangerine prefecture GWR, California of U.S.A.; It is about new Taiwan dollar of 20 to 30 yuan of each stere to deal with the cost.
Second kind
The industrial sewage is retrieved, namely recycle in the factory. But industry make recovery amount of waste water Cheng, look closely the on-the-spot actual demand and deal with the degree of difficulty and making, generally the retrieving amount is every day from several hundred to thousands of steres, it is limited to the factory mostly to retrieve the scope of application.

Source of the materials; Plan to test in administration's water conservancy of economic department water conservancy it ---Abolish the sewage factory and put the flowing water and utilize the tendency of diving and promote the tactics again.