Simultaneous Determination of Multi-Component Isotherm Parameters from Single Sample of Liquid

For the adsorption of multiple organic compounds using activated carbon in aqueous systems, several useful models have been developed to describe the equilibrium relationship. One of the easy-to-use models was developed by Suzuki et al. and the model was extended to determine equilibrium parameters for each component simultaneously. The determination procedure required liquid mixtures at various initial concentrations. The industrial sample, however, is normally controlled at constant concentration and hence the determination procedure mentioned above was limited to be applied. In this study, simultaneous determination procedure of multi-component isotherm parameters from single sample was discussed theoretically and experimentally. Then, it was found that Freundlich-type parameters for each component dissolved in water could be obtained from constant composition solutions based on Ideal Adsorbed Solution Theory.