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Because of coal mining for many years, there are 36.06 km2 subsidence areas in the Panji region of Huainan city, 11.32 km2 of which are catchments. The paper selects two subsidence waters which are in different closed conditions as research objects. Based on water quality monitoring values, the paper gets that opened subsidence water quality is better than closed one by using the method of fuzzy comprehensive...
The paper mainly analyzed the physicochemical indexes and got the situation of subsidence water by inspecting during unstable form stage. The physicochemical indexes were inspected including temperature, transparency, BOD5, CODCr, total alkalinity, total hardness, ions, etc. The result showed that all the subsided areas water were subjected to pollution, and the main pollution indexes were BOD5 and...
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