Abstract: The static equilibrium adsorption of phenol, aniline, p-chlorophenol, p-chloroaniline in the pure component system, and phenol—aniline, p-chlorophenol—p-chloroaniline in the two-component system on DA201-CⅡ were investigated at different temperatures. The results show that all the adsorption isotherms of pure component system are correlated with Freundlich equation within the studied range of temperature and concentration, and that the adsorption capacity follows the order phenol

Key words: aromatic compounds, adsorbent resin, Freundlich model, adsorption thermodynamics