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《CHONGQING ENVIRONMENTAL SCIENCE》 1995-06
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STUDY OF ADSORPTION NH3-N IN SOLUTION BY BENTONITE

Xia HaiPing; Ke Jiajun(Tsingbua Ulliversity,Beijing 100084)(Inst.of Chemical Metallurgy, Beijing 100084)  
Adsorption of in(NH4)2CO3 solution and NH3-N in waste wa-ter of cokIng plant by bentonite was investigated,The results obtained show that,(1)the adsorption of NH3-N in the waste water by particular bentonite(-12 mesh, φ 1.68mm)are greater than that of bentonite powder(-200 mesh)and acid activated bentonite powder(-200 mesh)about 10%。(2) With the increase of li-quid/solid ratio, the adsorption of NHs-N in the waste water by the particular bentonite,the bentonite powder and the acid activated bentonite powder are de-crased.(3)The adsorption of in the (NH4)2CO3 solution by the particular ben-tonite is greater than that of the bentonite powder when the liquid/solid ratio is grenter than 60 but the result is in reverse when the ratios is less than 60.
【Fund】: 北京中关村地区联合分析测试中心的资助
【CateGory Index】: X784.03
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