Abstract
In the present work the kinetics of chromium (VI) ions adsorption from aqueous solutions using chitosan at 25 o C and pH 5. The intraparticle diffusion rate constant (K id ) were determined to be 2.592 min -1 for chitosan. The results shows that the intraparticle diffusion model fits the sorption of chromium (VI) with higher coefficient of determination R 2 , thereby indicating the intraparticle diffusion may be rate limiting step for chromium (VI) adsorption. The results from this study indicate that chitosan is a good adsorbent for the removal of chromium from wastewater.
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