膨润土粘土矿吸附焦化废水中氨氮的研究

STUDY OF ADSORPTION NH3-N IN SOLUTION BY BENTONITE

研究了膨润土粘土矿对碳酸铵溶液中离子和焦化废水中氨氮的吸附。结果表明：在低液固比时，颗粒膨润土对碳酸铵溶液中离子的吸附效果优于粉状膨润土；在高液固比时。粉状膨润土的吸附效果优于颗粒膨润土。

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.