Abstract:Zeolite@Fe3O4 composite was prepared by co-precipitation method. Effects of pH value, adsorption kinetics, isothermal adsorption model and thermodynamics on adsorption of simulated ammonia nitrogen wastewater were investigated by static adsorption experiment. The results show that when pH value of solution is 6, adsorption capacity of zeolite@Fe3O4 composite to ammonium in water reaches the highest value. Adsorption capacity of zeolite@Fe3O4 composite for phosphorus in water gradually drops with increase of pH value of solution. Adsorption kinetics of ammonia nitrogen and phosphorus in water by zeolite@Fe3O4 composite satisfies well the quasi-secondary kinetic model. The linear fitting results of Langmuir adsorption isotherm model shows that the maximum theoretical unit adsorption capacity of ammonia nitrogen and phosphorus are 7.92 mg/g and 9.09 mg/g respectively.