Adsorption of Acid Blue 92 from Aqueous Solution Using an Activated Carbon Prepared from Sterculia Quadrifida Seed Shell Waste

Studies on removal of Acid Blue 92 from aqueous solution using activated carbon prepared from Sterculia Quadrifida seed shell waste as an adsorbent have been carried out. The influences of initial Acid Blue 92 concentration (20, 40, 60 mg/L), temperature (30 °C, 45 °C and 60 °C) and pH have been reported. Adsorption of Acid Blue 92 is highly pH dependent and the results are obtained at the optimum pH of 6.5 for the removal of dye. Kinetic parameter such as Pseudo first order, the Elovich model and the Pseudo second order was also discussed. A probable explanation was offered to account for the results of isotherms studies such as Langmuir, Freundlich and Temkin adsorption isotherms.