Cadmium removal by sorption onto Kemolit M3 (Wollastonite) was investigated. Metal species surface loading and pH are the important factors controlling metal removal. Generally the Cd2+ state is important in adsorption apart from Cd(OH)(+) in the higher pH range, Lower surface loading produces higher metal removal and the alkaline range is favorable for the uptake of Cd(II). Maximum removal (98.2%) has been noted at pH 9.5, which has been attributed to the additive effects of electrostatic forces and surface complexation. The data fit the Langmuir isotherm well, indicating monolayer coverage. The intraparticle diffusion has been found to play a dominating role as compared to film diffusion. Mass transfer parameters have also been investigated. The role of pH, a master parameter governing the uptake of Cd(II) has been discussed in light of the surface complexation at the solid-liquid interface.