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Adsorption of 2,4‐D onto activated carbon: Application of N th order approximation
Author(s) -
Bhaskar Ganugapati V.,
Bhamidimarri Rao S. M.
Publication year - 1992
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280530311
Subject(s) - activated carbon , adsorption , freundlich equation , diffusion , thermodynamics , kinetics , chemistry , surface diffusion , kinetic energy , mathematics , materials science , physics , classical mechanics
Adsorption kinetics of 2,4‐dichlorophenoxyacetic acid (2,4‐D) onto activated carbon is presented in this paper. The equilibrium adsorption of 2,4‐D is described by a Freundlich type isotherm and the batch kinetic experiments are analysed using a surface diffusion model. The model equations are simplified by an n th order approximation and, when applied to the experimental data, the approximation predicted the film transfer and diffusion coefficients with a good accuracy.