Competitive adsorption of metals on cabbage waste from multi-metal solutions

被引：92

作者：

Hossain, M. A. ^{[1
]}

Ngo, H. H. ^{[1
]}

Guo, W. S. ^{[1
]}

Nghiem, L. D. ^{[2
]}

Hai, F. I. ^{[2
]}

Vigneswaran, S. ^{[1
]}

Nguyen, T. V. ^{[1
]}

机构：

[1] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Broadway, NSW 2007, Australia

[2] Univ Wollongong, Sch Civil Min & Environm Engn, Strateg Water Infrastruct Lab, Wollongong, NSW 2522, Australia

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 160卷

关键词：

Cabbage waste; Competitive adsorption; Biosorption; Multi-metals; Antagonism mechanism mu; HEAVY-METALS; AQUEOUS-SOLUTION; CONTAMINATED WATER; BINARY ADSORPTION; MARINE-ALGAE; REMOVAL; IONS; BIOSORPTION; SORPTION; CU(II);

D O I：

10.1016/j.biortech.2013.12.107

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study assessed the adsorption capacity of the agro-waste 'cabbage' as a biosorbent in single, binary, ternary and quaternary sorption systems with Cu(II), Pb(II), Zn(II) and Cd(II) ions. Dried and ground powder of cabbage waste (CW) was used for the sorption of metals ions. Carboxylic, hydroxyl, and amine groups in cabbage waste were found to be the key functional groups for metal sorption. The adsorption isotherms obtained could be well fitted to both the mono- and multi-metal models. In the competitive adsorption systems, cabbage waste adsorbed larger amount of Pb(II) than the other three metals. However, the presence of the competing ions suppressed the sorption of the target metal ions. Except the case of binary system of Cd(II)-Zn(II) and Cd(II)-Cu(II), there was a linear inverse dependency between the sorption capacities and number of different types of competitive metal ions. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：79 / 88

页数：10

共 33 条

[1] Cd(II), Pb(II) and Zn(II) Removal from Contaminated Water by Biosorption Using Activated Sludge Biomass [J].