Using a New Lignocellulosic Material Based on Palm Stems for Hexavalent Chromium Adsorption in Aqueous Solution

被引：0
作者：
Nouacer, S. [1 ]
Hazourli, S. [1 ]
Djellabi, R. [1 ]
Khelaifia, F. Z. [1 ]
Hachani, R. [1 ]
Ziati, M. [1 ]
机构：
[1] Badji Mokhtar Univ, Dept Chem, Lab Water Treatment & Valorizat Ind Wastes, Fac Sci, BP12 2300, Annaba, Algeria
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH | 2016年 / 10卷 / 01期
关键词：
Hexavalent chromium; Lignocellulosic material; Palm stems; Adsorption; Water; TRIVALENT CHROMIUM; CR(VI) REDUCTION; BIOSORPTION; REMOVAL; REMEDIATION; VI; EQUILIBRIUM; SORPTION; CR(III); SAWDUST;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The objective of this work was focused on the use of a new natural lignocellulosic material based on palm stems for adsorbing of hexavalent chromium (Cr(VI)) in water. The palm stems powder (PSP) was characterized using different techniques. The effects of different operating parameters on the adsorption of Cr(VI) ions were investigated. The results show that the increase of the temperature and the initial Cr(VI) concentration leads to increase the adsorption quantity of Cr(VI) on PSP up to the a maximum in the range of 1.5-2.5 mg/g. On the other hand, the results of the adsorption isotherms follow the Freundlich model and the kinetic adsorption follows the pseudo-second order reaction. In addition, the thermodynamic study indicates that the adsorption process which depending the solution pH, is an endothermic and spontaneous phenomenon. Overall, our results show the adsorption behavior of this raw material that can be used as a low-cost alternative to commercial materials.
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页码：41 / 50
页数：10
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