Removal of metal ions from aqueous solutions by sorption onto rice bran

被引：169

作者：

Montanher, SF ^{[1
]}

Oliveira, EA ^{[1
]}

Rollemberg, MC ^{[1
]}

机构：

[1] Univ Estadual Maringa, Dept Chem, BR-87020900 Maringa, Parana, Brazil

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2005年 / 117卷 / 2-3期

关键词：

rice bran; biosorption; heavy metal ions; Freundlich isotherm;

D O I：

10.1016/j.jhazmat.2004.09.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new sorbent (raw rice bran) was investigated for heavy metal ions removal from aqueous solutions. Rice bran characterisation was carried out in order to identify the functional groups possibly involved in the metal binding. The binding process was studied in terms of binding capacity and metal affinity. The adsorption equilibrium was well described by the Freundlich isotherm model. The negative Gibbs free energy values obtained in this study with rice bran confirm the feasibility of the process and the spontaneous nature of sorption. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：207 / 211

页数：5

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