Removal of basic dye (basic magenta) using low-cost biosorbents from aqueous solutions: kinetic and equilibrium studies
by Xue Song Wang
International Journal of Environmental Technology and Management (IJETM), Vol. 12, No. 2/3/4, 2010

Abstract: The removal of basic magenta dye by low-cost biosorbents has been investigated using the batch experimental system. The adsorption of basic magenta onto various adsorbents was solution pH-dependent and the maximum removal occurred at basic pH (ca. 10.0). The kinetic experimental data were analysed using the Lagergren pseudo-first-order equation and pseudo-second-order equation equations to examine the mechanism of adsorption, and the results suggested that the adsorption of basic magenta onto various adsorbents was best represented by the pseudo-second-order equation. The linearised Langmuir and Freundlich adsorption isotherms were used to fit the equilibrium data and the adsorption isotherms for various adsorbents at all different temperatures exhibited Freundlich behaviour.

Online publication date: Wed, 10-Feb-2010

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