Xiaosan Song

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According to the problem of the northwest region excessive hexavalent chromium in the rainwater collection, this paper studies influence factors on Nano-metal clustersmedia removing hexavalent chromium through the orthogonal experiments and analyzes the different filter layer thickness, initial hexavalent chromium concentration, filter velocity and the(More)
The water catchment water quality of northwest China is evaluated and managed through the principal component analysis. The results show that the water quality is characterized by high organic load and turbidity, and the felted roof and tiled roof achieve the requirements of category. The evaluation results conform to actual situation of the(More)
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