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

Rice husk and sugarcane bagasse were chemically impregnated with ZnCl 2 and carbonized at 700 °C in a large-scale rotary furnace. The activated carbons (ACs) obtained had BET surface area of 811 and 864 m 2/g, respectively, and were essentially microporous. The adsorption of arsenic, humic acid, phe...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2008-10, Vol.144 (1), p.42-50
Hauptverfasser:	Kalderis, Dimitrios, Koutoulakis, Dimitrios, Paraskeva, Panagiota, Diamadopoulos, Evan, Otal, Emilia, Valle, Joaquín Olivares del, Fernández-Pereira, Constantino
Format:	Artikel
Sprache:	eng
Schlagworte:	Activated carbon Adsorption Applied sciences Arsenic Chemical engineering Exact sciences and technology General treatment and storage processes Humic acid Landfill leachate Oryza sativa Phenol Pollution Rice husk Sugarcane bagasse Urban and domestic wastes Wastes
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Rice husk and sugarcane bagasse were chemically impregnated with ZnCl 2 and carbonized at 700 °C in a large-scale rotary furnace. The activated carbons (ACs) obtained had BET surface area of 811 and 864 m 2/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.
ISSN:	1385-8947 1873-3212
DOI:	10.1016/j.cej.2008.01.007