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The adsorption equilibrium and kinetics of single and binary component copper ions and phenol onto powdered activated carbon (PAC), alginate beads and alginateactivated carbon beads (AAC) were studied. Adsorption equilibrium data for single component copper ions and phenol onto the adsorbents could be represented by the Langmuir equation. Multicomponent equilibrium data were correlated by the extended Langmuir and ideal adsorbed solution theory (IAST). The IAST gave the best fit to our data. The amount of copper ions adsorbed onto the AAC beads in the binary component was greater than that of phenol. The internal diffusion coefficients were determined by comparing the experimental concentration curves with those predicted from surface diffusion and pore diffusion model. AbbreviationsA S surface area of adsorbent (m 2 /g) C i initial concentration of bulk fluid (mol/m 3 ) C e saturation concentration of the adsorbate in the liquid phase (mol/m 3 ) d P particle diameter (m) D P pore diffusion coefficient (m 2 /s) D S surface diffusion coefficient (m 2 /s) k f film mass transfer coefficient (m/s) k F isotherm parameter (mol/kg)(mol/m 3 ) −1/n k L isotherm parameter (m 3 /mol) k S isotherm parameter (mol/m 3 ) −1/n N A rate of mass transfer of adsobates to the external surface of the adsorbent (mol/s) N number of component q equilibrium amount adsorbed on the adsorbent (mol/kg) q m maximum adsorption capacity of adsorbent (mol/kg) R P particle radius (m) V volume of solution (m 3 ) W weight of adsorbent (kg)

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