摘要：In recent years, there has been growing interest in finding inexpensive and effective adsorbents such as teawaste, wood, sawdust, kaolin, bentonite and peat. Sawdust is one of the promising adsorbents for removingdye pollutants from wastewaters. In this paper, the modified camphor sawdust is obtained from camphorsawdust with 5% cetyltrimethyl ammonium bromide solution activation. Then, the pore structure characteristicsand adsorption dye wastewater in the aqueous solution capacity of the camphor sawdust were investigated.The kinetic and isotherm adsorption of dye wastewater by the camphor sawdust modified with surfactant arediscussed in detail. The dye Congo red was chosen as the dye wastewater. The equilibrium data were betterrepresented by Langmuir isotherm model than done by the Freundlich isotherm model. The adsorptionprocess of the modified camphor sawdust for dye Congo red is homogenous. The maximum adsorptioncapacity obtained from the Langmuir isotherm is 125.39 mg/g.
