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

被引：185

作者：

Kalderis, Dimitrios ^{[1
]}

Koutoulakis, Dimitrios ^{[1
]}

Paraskeva, Panagiota ^{[1
]}

Diamadopoulos, Evan ^{[1
]}

Otal, Emilia ^{[2
]}

Olivares del Valle, Joaquin ^{[2
]}

Fernandez-Pereira, Constantino ^{[2
]}

机构：

[1] Tech Univ Crete, Dept Environm Engn, Khania 73100, Greece

[2] Univ Seville, AICIA, Seville, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2008年 / 144卷 / 01期

关键词：

Rice husk; Activated carbon; Sugarcane bagasse; Landfill leachate; Arsenic; Humic acid; Phenol; Adsorption;

D O I：

10.1016/j.cej.2008.01.007

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rice husk and sugarcane bagasse were chemically impregnated with ZnCl2 and carbonized at 700 degrees 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. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：42 / 50

页数：9

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