Adsorption of chromium from aqueous solutions by maple sawdust

被引：342

作者：

Yu, LJ

Shukla, SS ^{[1
]}

Dorris, KL

Shukla, A

Margrave, JL

机构：

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

[2] Southeast Coll, Houston, TX 77270 USA

[3] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2003年 / 100卷 / 1-3期

关键词：

maple sawdust; heavy metals; chromium; adsorption; wastewater;

D O I：

10.1016/S0304-3894(03)00008-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents the data for the effect of adsorbent dose, initial sorbate concentration, contact time, and pH on the adsorption of chromium(VI) on maple sawdust. Batch adsorption studies have been carried out. An empirical relationship has been obtained to predict the percentage chromium(VI) removal at any time for known values of sorbent and initial sorbate concentration. Under observed test conditions, the equilibrium adsorption data fits the linear Langmuir and Freundlich isotherms. The experimental result inferred that chelation ion exchange is one of the major adsorption mechanisms for binding metal ions to the maple sawdust. (C) 2003 Published by Elsevier Science B.V.

引用

页码：53 / 63

页数：11