Removal of nickel from aqueous solutions by sawdust

被引：140

作者：

Shukla, SS ^{[1
]}

Yu, L

Dorris, KL

Shukla, A

机构：

[1] Lamar Univ, Dept Chem, Beaumont, TX 77710 USA

[2] SE Coll, Houston, TX 77270 USA

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2005年 / 121卷 / 1-3期

关键词：

maple sawdust; heavy metals; nickel; adsorption; wastewater;

D O I：

10.1016/j.jhazmat.2004.11.025

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The main parameters influencing Nickel (II) metal sorption on maple sawdust were: initial metal ion concentration, amount of adsorbent, and pH value of solution. The maximum percent metal removal was attained after about 1 h. The greatest increase in the rate of adsorption of metal ions on sawdust was observed for pH changes from 2 to 5. An empirical relationship has been obtained to predict the percentage Nickel (II) removal at any time for known values of sorbent and initial sorbate concentration. The experimental results provided evidence for chelation ion exchange as the major adsorption mechanisms for binding metal ions to the sawdust. The adsorbent can be effectively regenerated using 0.1 M strong acid and reused. (c) 2004 Published by Elsevier B.V.

引用

页码：243 / 246

页数：4

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