The orthogonal experiment was designed to optimize the conditions of adsorption of Zn~(2+) on 13X(molecular) sieves.Some conditions that affected the adsorption capacity of Zn~(2+) such as the concentration of Zn~(2+),temperature and the pH of solution were investigated.The adsorption equilibrium and kinetics data of Zn~(2+) on 13X molecular sieves were measured.The adsorption equilibrium data were fitted with Langmuir equation well.(According) to the adsorption equilibrium data,the model parameters were ob...