Abstract:Based on the advantages of zero-valent iron permeable reaction wall technology, Fe/Cu bimetallic materials were prepared by chemical deposition method in this study. The Fe/Cu materials were characterized as non-uniform particles, and the chemical composition was Cu coated on the surface of iron powder. Through static experiment systematically examines the reaction temperature, solution pH, average flow velocity, isothermal adsorption and condition of bimetallic material ratio of river sand, etc, the effects of the Cr(Ⅵ) remove and adjust the water flow to realize the simulation of the dynamic test. Cr(Ⅵ) to remove the static experiments show that when the mFe:mCu=10:2, dosing quantity of 40 mg/mL, Cr(Ⅵ) initial concentration was 50 mg/L, pH=7.5, temperature 298 K, the removal of Cr(Ⅵ) in water effect is best, in about 15 min reaction of Cr(Ⅵ) remove rate as high as 99.4%; Dynamic experiments show that the group velocities (104 mL/h) velocities of Cr(Ⅵ) adsorption amount to an average of 0.869 mg/g, slow velocity group (28 mL/h ) of Cr(Ⅵ) adsorption of Cr(Ⅵ) average of 0.920 mg/g, the total adsorption from the slow group velocity is higher. The results of Langmuir and Freundlich show that the adsorption reaction belongs to the monolayer adsorption process, and the temperature rise is conducive to the adsorption reaction. This study realized the preparation of Fe/Cu bimetal, and the Cr(Ⅵ) has good removal efficiency, combining lm-prb technology, to realize the groundwater water bodies such as the effective removal and application of Cr(Ⅵ).