Adsorption of Basic dye onto Activated Carbon prepared from Palm Tree Flower (Borassus flabellifer): Kinetics, Equilibrium Study and Mathematical Model

Kini, Srinivas M and Saidutta, M B and Murty, Ramachandra V (2015) Adsorption of Basic dye onto Activated Carbon prepared from Palm Tree Flower (Borassus flabellifer): Kinetics, Equilibrium Study and Mathematical Model. International Journal of Applied Engineering Research, 10 (21). pp. 41800-41808. ISSN 0973-4562

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Abstract

Adsorption experiments were carried out for the removal of Methylene blue (MB) using Palm Tree Male flower activated carbon (PTMFAC) as the adsorbent at various temperature, adsorbent and adsorbate concentration.. The kinetic data were fitted in pseudo-first order, second order models. The equilibrium data were well fitted in Langmuir isotherm and the maximum equilibrium capacities of the adsorbent were found to be 541.2, 550.4, 588.2 mg/g at 303, 313, and 323 K, respectively. Thermodynamic data for the adsorption system indicated spontaneous and endothermic process. The enthalpy and entropy values for adsorption were obtained as 10.5 KJ/ mol and 0.113 KJ/ mol K respectively in the temperature range of 303-323 K. A new mathematical model for MB transported by molecular diffusion from the bulk of the solution to the surface of PTMFAC was derived and the values of liquid phase diffusivity and external mass transfer coefficient were estimated

Item Type: Article
Uncontrolled Keywords: Palm tree male flower, methylene blue; Langmuir; pseudo-first order; pseudo-second order; mathematical model
Subjects: Engineering > MIT Manipal > Biotechnology
Engineering > MIT Manipal > Chemical
Depositing User: MIT Library
Date Deposited: 30 Nov 2015 16:28
Last Modified: 30 Nov 2015 16:28
URI: http://eprints.manipal.edu/id/eprint/144639

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