Kinetic Modeling of Liquid-phase Adsorption of Malachite Green on Activated Carbon Prepared from Almond shell

Malekhoseani, H. and Mahanpoor, K. and Soufi, A. and Bardine, S. H. Kinetic Modeling of Liquid-phase Adsorption of Malachite Green on Activated Carbon Prepared from Almond shell. In: 11th Iranian Physical Chemistry Seminar-July 2008, July 2008, Ardabil, Iran.

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Abstract

Adsorption by activated carbon has been used extensively in dye house wastewater treatment, either independently or coupled with biological degradation [1]. Though many lowcost materials have been tested for the removal of different dyes from their aqueous solutions, such as clay [2], sawdust [3], chitosan [4], and peat [5], adsorption by activated carbon remains one of the most efficient techniques in dye house wastewater treatment, especially as a final polishing step before discharging or recycling the treated wastewater. In this paper, adsorption equilibrium and kinetics of Malachite Green dye from their single-component aqueous solutions onto activated carbon were studied in a batch reactor. Effects of the initial concentration and adsorbent particle size on adsorption rate were investigated Adsorption equilibrium data were then correlated with several well- known equilibrium isotherm models. The kinetic data were fitted using the pseudo-first- order equation, the pseudo-second-order equation, and the intraparticle diffusion model. The respective characteristic rate constants were presented. A new adsorption rate model based on the pseudo-first-order equation has been proposed to describe the experimental data over the whole adsorption process. The results show that the modified pseudo-first-order kinetic model generates the best agreement with the experimental data for the three single-component adsorption systems.

Item Type: Conference or Workshop Item (Paper)
Persian Title: Kinetic Modeling of Liquid-phase Adsorption of Malachite Green on Activated Carbon Prepared from Almond shell
Persian Abstract: -
Subjects: Divisions > Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Divisions: Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Subjects > Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Date Deposited: 17 Jun 2019 04:03
Last Modified: 17 Jun 2019 04:03
URI: http://repository.uma.ac.ir/id/eprint/6753

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