Sorption Behavior of Pu on Fe,FeO,Fe_2O_3,and Fe_3O_4

The sorption behavior of Pu on Fe,FeO,Fe_2O_3 and Fe_3O_4 powder are studied with batch(experiment) at ambient temperature.Sorption experiments are performed under atmospheric and anae robic conditions(in an argon glove box with an oxygen content of less than 5×10~(-6)).The experimental results show that the sorption ability of Pu on Fe,FeO,Fe_2O_3 and Fe_3O_4 powder is increased with increasing pH value(1.0~10.0) of the aqueous phase,and decreased with increasing carbonate ion concentration(4.0×10~(-3) mol/L~1.0×10~(-1) mol/L) in the aqueous phase. The oxygen concentration of the experimental conditions has less influence on the sorption of Pu on Fe,FeO,Fe_2O_3,and Fe_3O_4 powder.The sorption isotherms of Pu on Fe,FeO,Fe_2O_3,and Fe_3O_4 powder can be well described by the Freundlich's equation.