In this study, the adsorption mechanism and spatial distribution of U(Ⅵ) in the eluvial, illuvial and parent material horizon of a brown-red soil profile near a Uranium tailing impoundment in South China were discussed. The physical and chemical properties of the soil horizons were characterized by using surface area measurement, X-ray fluorescence, scanning electron microscope, fourier transform infrared spectroscopy and X-ray diffraction. The effects of time, U(Ⅵ) initial concentration, pH, temperature, and particle sizes on U(Ⅵ) adsorptio...
