期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 161, 期 1, 页码 559-564出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2008.03.136
关键词
Lignite; Humic substances; Heavy metals; Sorption; Langmuir-Freundlich isotherm
资金
- Czech Science Foundation [R 105/05/0404]
The study presents results of sorption of metal ions (Pb2+, Zn2+, Cu2+, and Cd2+) onto lignite mined in South Moravia, Czech Republic, and solid humic substances (humin and humic acid) derived from it. The efficiency of these sorbents has been studied as a function of contact time, solution pH, and metal concentration. The sorption efficiencies were higher for humin and lower for humic acid samples than for the original lignite. With its high sorption capacities of several mmol/g, particularly for Pb2+ and Cd2+, the South Moravian lignite can provide a cheap Source material for preparation of sorbents utilizable in removal of toxic metals from wastewaters. (C) 2008 Elsevier B.V. All rights reserved.
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