Preparation of Fe-loaded activated carbon and its adsorption property of U(VI) in aqueous solution

Three kinds of method were employed to prepare Fe loaded activated carbon (Fe-AC), liquid reduction method, carbonthermal method, incipient wetness method, respectively. Before and after adsorption, the adsorption property of Fe-AC had been analysed. Results indicated that the removal mechanisms were mainly redox reaction, adsorption and precipitation. In addition, the adsorption models fitted with the kinetic model and adsorption isotherm model. Based on the analysis of six influencing factors, we obtain some actual information to deal with the humic acid and the “back to acid”.