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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

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/43249D42-3CA3-49BD-80DB-91AF2EED4A5D
Έτος 2008
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά 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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Περίληψη

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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