Adsorption Capacity of Zeolite to Cerium Ions

Discontinuous process was applied to study the adsorption capacity and mechanism of zeolite to cerium ions,which provided some references to the assessment of disposal effect of high-level liquid wastes and a new technology avenue to the processing of the high-level liquid wastes.The experimental results show that the equilibrium adsorption time of zeolite to cerium ions was about 168 hr.The equilibrium adsorption capacity was about 22.5mg/g and equilibrium adsorption rate and ratio were about 32% and 23.5ml/g under experimental conditions(room temperature,cerium ions concentration:1400mg/l,pH=1.5,proportion of solid-liquid=1∶50),respectively.The equilibrium adsorption capacity decreased while the equilibrium adsorption rate and ratio increased with increasing zeolite's quantity for a given initial concentration of cerium ions.