The results of studies on the adsorption dynamics of light chlorinated hydrocarbons, 1,2-dichloroethane,1,1,2,2-tetrachloroethane, chloroform, carbon tetrachloride, 1,1-dichloroethene, perchloroethylene and 1,1,2-trichloroethene, from a seven-component solution on to activated carbon are presented. The experimental results were described using the equilibrium model. The application of this model allows to determine the location of the midpoint of the breakthrough profile. (c) 2005 Elsevier Inc. All rights reserved.