THE STUDY ON ADSORPTION BEHAVIORS OF NOVEL MODIFIED ZEOLITE(Na-Y ZEOLITE)TO Ni~(2+)

Natural clinoptilolite with NaOH solid were melted in high temperature,modified and get novel modified zeolite(Na-Y zeolite).Experiments results show that adsorption capacity of Na-Y zeolite is 31.04 mg·g~(-1),while the natural zeolite only is 3.60 mg·g~(-1) and the Na zeolite(nodified by NaCl solution) is 7.64(mg·g~(-1)).Na-Y zeolite's adsorption to the Ni~(2+) is in agreement with the Freundlich equation.In the beginning of the adsorption process(0—5h),Na-Y zeolite's adsorption capacity to the Ni~(2+) in the solution rise obviously,and after this period,it would rise slowly.Coexisting cation's effects on the Na-Y zeolite adsorption behaviors to the Ni~(2+) is : Co~(2+)Ca~(2+)Fe~(3+)K~(+).