Removal of nickel (II) ions from aqueous solutions by biosorption on sugarcane bagasse

被引：167

作者：

Aloma, I. ^{[2
]}

Martin-Lara, M. A. ^{[1
]}

Rodriguez, I. L. ^{[2
]}

Blazquez, G. ^{[1
]}

Calero, M. ^{[1
]}

机构：

[1] Univ Granada, Dept Chem Engn, E-18071 Granada, Spain

[2] Cent Univ Marta Abreu Las Villas, Santa Clara, Villa Clara, Cuba

来源：

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2012年 / 43卷 / 02期

关键词：

Biosorption; Heavy metals; Sugarcane bagasse; Water treatment; WASTE-WATER; HEAVY-METALS; CR(VI) IONS; ADSORPTION; NI(II); SORPTION; BIOMASS; CU(II); COPPER; EQUILIBRIUM;

D O I：

10.1016/j.jtice.2011.10.011

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The present study was undertaken to evaluate the feasibility of sugarcane bagasse for the removal of nickel from aqueous solution. Batch experiments were performed to study the biosorption of nickel on sugarcane bagasse sorbent considering the effect of contact time, initial concentration of nickel ions, pH of the solution and temperature. The sorption process was well explained with pseudo second-order kinetic model. The experimental maximum sorption capacity of sugarcane bagasse for nickel removal was approximately 2 mg/g at 25 degrees C and at pH 5. The biosorption data was fitted to Langmuir. Freundlich and Sips isotherm models. The Langmuir model showed better representation of data, with correlation coefficient greater than 0.99. The thermodynamics parameters were evaluated from the experimental data. The Gibbs free energy was determined to be negative, indicating the spontaneous nature of the sorption process. The results of the present study suggest that sugarcane bagasse waste can be used beneficially for nickel removal from aqueous solution. (C) 2011 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：275 / 281

页数：7

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