Abstract: Crude bentonite was modified using cationic surfactant CPC (cetyl pyridinium chloride).The CPC modified bentonite was characterized by IR and XRD and used as adsorbent to study its removal of 2,4-Dichlorophenol from waste water.The optimum conditions such as adsorption time, temperature, amount of adsorbent and pH value were also determined.The study shows that CPC modified bentonite has both surface adsorption and distribution effect of 2,4-dichlorophenol , leading to an evident removal of phenol pollutants.

Key words: CPC, Modified bentonite, 2,4-Dichlorophenol, Adsorption