Effect of Operating Variables on the Batch Removal of a Dye Using Activated Plant Biomass

Article type: Research Article

Authors: Rajamohan, N. | Rajasimman, M.

Affiliations: Department of Chemical Engineering, Sohar University, Sohar, Sultanate of Oman | Department of Chemical Engineering, Annamalai University, India

Note: [] Corresponding Author. E-mail: [email protected]

Abstract: Acid activated date palm tree powder is proposed as an adsorbent for the removal of acid dye, Acid Blue 92, in this study. The influence of operating variables like solution pH, adsorbent dosage and initial dye concentration are studied thoroughly to evaluate the optimum conditions. Maximum adsorption was found to take place at pH 2.0 while equilibrium was achieved in 6 h. The mechanism of adsorption was explored by Pseudo-second order and Elovich models and it was found that this sorption process is well represented by Elovich model with a higher value of R^2 = 0.997. The physicochemical properties of the adsorbent are also studied.

Keywords: Dye, sorption, date palm, kinetics

Journal: Asian Journal of Water, Environment and Pollution, vol. 10, no. 2, pp. 59-64, 2013