The adsorption is the main process responsible for the accumulation of heavy metals in the surface of soil colloids. Detailed knowledge of this phenomenon can contribute to improve the remediation practices for contaminated soil. The free energy (DG0) of Ni adsorption was evaluated in surface (0.0-0.2 m) and subsurface (in the maximum expression of B horizon) samples of a clayey Rhodic Acrudox (RA) and a very clayey Eutric Kandiudalf (EK). Ni was added (2, 5, 10, 20, 30, 40, 50, […]