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Adsorption of polluting substances on activated carbons prepared from rice husk and sugarcane bagasse

Kalderis Dimitrios, Koutoulakis Dimitrios, Paraskeva Panagiota, Diamantopoulos Evaggelos, Otal Emilia, Olivares del Valle Joaquín , Fernández-Pereira Constantino

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URI: http://purl.tuc.gr/dl/dias/43249D42-3CA3-49BD-80DB-91AF2EED4A5D
Year 2008
Type of Item Peer-Reviewed Journal Publication
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Bibliographic Citation D. Kalderis, D. Koutoulakis, P. Paraskeva, E. Diamadopoulos, E. Otal, J. Olivares del Valle and C. Fernández-Pereira, "Adsorption of polluting substances on activated carbons prepared from rice husk and sugarcane bagasse," Chem. Eng. J., vol. 144, no. 1, pp. 42-50, Oct. 2008. doi: 10.1016/j.cej.2008.01.007 https://doi.org/10.1016/j.cej.2008.01.007
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Summary

Rice husk and sugarcane bagasse were chemically impregnated with ZnCl2 and carbonized at 700 °C in a large-scale rotary furnace. The activated carbons (ACs) obtained had BET surface area of 811 and 864 m2/g, respectively, and were essentially microporous. The adsorption of arsenic, humic acid, phenol and a municipal solid waste landfill leachate was examined. Both ACs showed the best adsorption behaviour towards phenol, removing around 80% at the equilibrium time of 4 h. The adsorption isotherms for arsenic and humic acid were also favourable, although the maximum loadings achieved were lower than that of phenol. Finally, the rice husk AC showed 60% and 70% removal efficiency for colour and COD, respectively, when tested on a landfill leachate.

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