Adsorption of metal cations on wool carbonising waste. Part 2. Adsorption mechanisms

Abstract

In order to elucidate the mechanisms of adsorption of Hg2+, Ag2+, Ni2+, Cr3+, Al3+, Zn2+ and Pb2+ on wool carbonising waste, the possible role of the various ionisable groups (‐SH, ‐SO3H, ‐OSO3H, ‐COOH and ‐NH2) of the substrate has been considered together with the corresponding solubility products and dissociation constants of the metal salts thus formed.