کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
585071 | 877905 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cadmium sorption by EPSs produced by anaerobic sludge under sulfate-reducing conditions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
This study showed that EPS produced by anaerobic sludge under sulfate-reducing bacteria was effective in removing Cd2+ from solution. The sorption data could be described by the Freundlich isotherm model. The qm 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 cmâ1, group of the amide(I), CH2 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 138, Issue 3, 1 December 2006, Pages 589-593
Journal: Journal of Hazardous Materials - Volume 138, Issue 3, 1 December 2006, Pages 589-593
نویسندگان
Daoyong Zhang, Jianlong Wang, Xiangliang Pan,