In the past decades, the Songhua River in Harbin for drinking water havebeen more and more polluted by municipal sewage and industry wastewater, andbeen upset the people along the river. It is not enough to depend only onsecondary treatment ratio, but no consideration about recycle the waste water asreclamation water to hold the health of water cycle together, at the same tine tobe a new important part of city source water. Then we can see a bright future forthe healthy water cycle in garden cit...
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