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USE OF FLY ASH IN ABSORPTION OF METAL IONS IN WASTE WATER STUDY OF THE CHARACTERIC AND MECHANISM

Yu Xin Liu Xinyue Cheng Jianguang Liu Xiaoming(Shandong Institute of Mining and Technoegy, Tai' an, 271000)  
Using the method of sedentary thermal experiment, the use of fly ash in the removal of Zn2+,Cu2+,Pb2+ in waste water was studied.Special attention was paid to the effects of pH,time degree of activity have on absorbing ability.The freundlich model applicable to the absorption data was set. Also put forward was the mechanism of absorption and ultra - micro structure of fly ash with the help of TEM.
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