Abstract
Experimental data have been reported at 25°C for adsorption of organic multi-solutes; p-chlorophenol-phenol, p-chlorophenol-pyridine, phenol-pyridine, and p-chlorophenol-phenol-pyridine from dilute aqueous solutions adsorbing on activated carbon. The adsorbent used in the present work was a commercial activated carbon (Filtrasorb 400) with a specific BET surface area of 1050-1200 m2/g.
The extended Radke-Prausnitz equation previously proposed has been adopted to correlate the present data. The adsorption isotherms of bi-solute system could be well correlated within about 10% error. The adsorption equilibria of p-chlorophenol-phenol-pyridine ternary solute system could be estimated with fairly good agreement by using constants determined by single-and bi-solutes adsorption equilibrium data only.
