| Literature DB >> 16839668 |
Daoyong Zhang1, Jianlong Wang, Xiangliang Pan.
Abstract
This study showed that EPS produced by anaerobic sludge under sulfate-reducing bacteria was effective in removing Cd(2+) from solution. The sorption data could be described by the Freundlich isotherm model. The q(m) derived from the Langmuir isotherm model was up to 2720 mg/g EPSs. The presence of copper and nickel ions had significantly reduced the cadmium sorption by EPS and the presence of zinc had little effect. Analysis of FTIR spectra demonstrated that C-O-C of polysaccharides at 1150-1030 cm(-1), group of the amide(I), CH(2) group of the lipids, carboxyl and -OH groups of proteins and polysaccharides were involved in cadmium binding, of which the -OH groups and the C-O-C group of polysaccharides played a major role in cadmium sorption by EPSs.Entities:
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Year: 2006 PMID： 16839668 DOI： 10.1016/j.jhazmat.2006.05.092
Source DB: PubMed Journal: J Hazard Mater ISSN： 0304-3894 Impact factor: 10.588