Utilisation of Andisols as possible low-cost adsorbent to remove Cr (VI) from aqueous solution

Sandhya Babel and Einstine M. Opiso

International Journal of Environmental Technology and Management, 2010, vol. 12, issue 2/3/4, 277-293

Abstract: The potential of using Andisols to remove Cr (VI) from aqueous solution was evaluated by batch and column experiments. The results showed that the A-horizons (Isarog: 63%; Mandalagan: 42%) of the soils have lower adsorption capacity compared to B-horizons (Isarog: 93%; Mandalagan: 66%) using a dose of 20 g/L and Cr (VI) concentration of 10 mg/L. The adsorption capacity of B-horizons using column experiments were also found to retain more Cr (VI) than batch technique. Hence, the B-horizon of the studied Andisols can be used as an effective adsorbent for Cr (VI) removal from contaminated water systems.

Keywords: hexavalent chromium; andisols; adsorption isotherms; acid treatment; chromium(IV) removal; water pollution. (search for similar items in EconPapers)
Date: 2010
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