Study on adsorption kinetics of slime to polyacrylamide in polymer-containing waste water

in order to soive th cificultreatnent prblem of the polyacrylamide waste water.the slite with coal sold waste was taken as an adsorbent.The static adsopion fest was applied to investigate the slime feeding volume,p H.adsorption reacion time and other factors aected to the adsoption effc of the polyacryamide.The Lagergen Pseudo first order kinetics equation and the Lagergren Pseudo second order kineics equation were applied to investigate the kinetics proc.ss of the slime to adsorb the polyacryiamide. The testresuts showed that when the reacion temperature was 4 C,the slime feeding volume was 150 g /Lp H vale was 4 ～ 6 andthe reaction time was10 min ,the removing rate of thepolyacrlanidein the polymner-containing waste water with a qualty density of 100 mg L woul be 94%owith the sime.And the Lagergren pseudo second order kinetics equation could well escribe the adsorption kineticsprcess ofthe polyacrlanide in the waste water with the slime.The liquid membrane difusion model showed that the liquid membrane diffusion would be the main velocity control step of the adsoption proc.ess.