Abstract
The removal of three‐ and hexavalent chromium from aqueous solutions using sugar beet pulp as biosorbent substrate was performed. The kinetics of Cr(III) and Cr(VI) removal were studied at 20.0 ± 0.5 °C and under various experimental conditions. The Cr(III) ions were adsorbed onto the biosorbent by ion‐exchange mechanism with Ca2+ cations. The influence of solution pH was found to greatly affect the adsorption efficiency of Cr(VI). Cr(VI) removal was largely involved in a reduction mechanism with the appearance of Cn(III) ions in the solution.
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