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Adsorption Characteristics of Methylene Blue on Activated Carbon from Rice Husk Ash by Chemical-Thermal Process
Abstract:
The production of functional activated carbon (AC) prepared from cheap agricultural biomass combustion residue rice husk ash (RHA) has been utilized as the adsorbent for the removal of Methylene Blue from an aqueous solution was examined in this study. The RHA was subjected to a chemical pretreatment by ZnCl2, followed by carbonization in a muffle. The experimental data were analyzed by the Freundlich models of adsorption. Equilibrium data fitted well with the Freundlich model. The rates of adsorption were found to conform to the pseudo-second-order kinetics with good correlation.
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2303-2306
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May 2012
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© 2012 Trans Tech Publications Ltd. All Rights Reserved
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