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COMBINED USE OF PAM AND CaCl_2 IN THE TREATMENT OF COAL DRESSING WASTEWATER

Zhu Long Zhang Xiujuan (Northeastern University, Shenyang, 110006)Zhang Keming ( Coal Management Bureau of Liaoning)  
Based on the test of the ζ- electromotive force of the coal dressing wastewater, the structure of the colloidal particles of the wastewater can be inferred. Calciferous salt is the ideal coagulant by testing some kinds of coagulant which can decrease the ζ- electromotive force, The experiment also shows that a new method is set up which deals with the coal dressing wastewater by using PAM and CaCl2 together.
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