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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2810
Title: Use of bagasse fly ash as an adsorbent for the removal of brilliant green dye from aqueous solution
Authors: Mane V.S.
Mall I.D.
Srivastava V.C.
Published in: Dyes and Pigments
Abstract: The present study deals with the adsorption of brilliant green (BG) on carbon rich bagasse fly ash (BFA). BFA is a solid waste obtained from the particulate collection equipment attached to the flue gas line of the bagasse-fired boilers of cane sugar mills. Batch studies were performed to evaluate the influences of various experimental parameters like initial pH (pH0), contact time, adsorbent dose and initial concentration (C0) on the removal of BG. Optimum conditions for BG removal were found to be pH0 ? 3.0, adsorbent dose ? 3 g/l of solution and equilibrium time ? 5 h. Adsorption of BG followed pseudo-second-order kinetics. Intra-particle diffusion does not seem to control the BG removal process. Equilibrium isotherms for the adsorption of BG on BFA were analyzed by Freundlich, Langmuir, Redlich-Peterson, Dubnin-Radushkevich, and Temkin isotherm models using non-linear regression technique. Redlich-Peterson and Langmuir isotherms were found to best represent the data for BG adsorption onto BFA. Adsorption of BG on BFA is favourably influenced by an increase in the temperature of the operation. Values of the change in entropy (? S0) and heat of adsorption (? H0) for BG adsorption on BFA were positive. The high negative value of change in Gibbs free energy (? G0) indicates the feasible and spontaneous adsorption of BG on BFA. © 2006 Elsevier Ltd. All rights reserved.
Citation: Dyes and Pigments (2007), 73(3): 269-278
URI: https://doi.org/10.1016/j.dyepig.2005.12.006
http://repository.iitr.ac.in/handle/123456789/2810
Issue Date: 2007
Keywords: Adsorption kinetics
Adsorption thermodynamics
Bagasse fly ash
Dye removal
Error analyses
Isotherms
ISSN: 1437208
Author Scopus IDs: 15027202800
55664368900
35565811700
Author Affiliations: Mane, V.S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Mall, I.D., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Funding Details: Authors are thankful to the Ministry of Human Resource and Development, Government of India, for providing financial support to undertake the work.
Corresponding Author: Mall, I.D.; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India; email: id_mall2000@yahoo.co.in
Appears in Collections:Journal Publications [CH]

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