Dye removal from aqueous solution by adsorption on treated sawdust

被引：711

作者：

Garg, VK ^{[1
]}

Gupta, R ^{[1
]}

Yadav, AB ^{[1
]}

Kumar, R ^{[1
]}

机构：

[1] Guru Jambheshwar Univ, Dept Environm Sci & Engn, Hisar 125001, Haryana, India

来源：

BIORESOURCE TECHNOLOGY | 2003年 / 89卷 / 02期

关键词：

sawdust; formaldehyde; sulphuric acid; dye; batch mode; adsorption;

D O I：

10.1016/S0960-8524(03)00058-0

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Formaldehyde treated and sulphuric acid treated saw dusts were used to adsorb malachite green at varying dye concentration, adsorbent dose, pH and agitation time. Similar experiments were conducted with laboratory grade activated carbon to compare the results. The adsorption efficiency of sulphuric acid treated sawdust (SD) was higher than formaldehyde treated SD. The adsorption followed first order rate expression and Lagergren equation. An initial pH in the range of 6-9 was favorable for the dye removal by both the adsorbents. Dilute solutions were effectively decolorized by the adsorbents. It is proposed that in batch or stirred tank reactors, both adsorbents can be an attractive option for dye adsorption. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：121 / 124

页数：4

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