کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10279793 | 465442 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chromium(VI) biosorption characteristics of Neurospora crassa fungal biomass
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chromium(VI) biosorption characteristics of Neurospora crassa fungal biomass Chromium(VI) biosorption characteristics of Neurospora crassa fungal biomass](/preview/png/10279793.png)
چکیده انگلیسی
The removal of Cr(VI) from aqueous solutions by live and pretreated Neurospora crassa fungal biomass was investigated in the batch mode. The influence of solution pH, contact time and initial metal ion concentration as well as pretreatment of biomass on the biosorption efficiency were studied. All pretreatment methods were found to increase the biosorption capacity of biomass in comparison with the live biomass and biosorption capacity of acetic acid pretreated biomass was found to be 15.85 ± 0.94 mg/g biomass under optimum conditions. The adsorption constants were found from the Freundlich isotherm model at 25 °C. The biosorbent was regenerated using 10 mM NaOH solution with up to 95% recovery and reused five times in biosorption-desorption cycles successivelly. The biosorption mechanism of biosorbent was also evaluated by chemical and instrumental analysis including infrared spectroscopy, scanning electron microscopy and X-ray energy dispersion analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 18, Issue 7, June 2005, Pages 681-689
Journal: Minerals Engineering - Volume 18, Issue 7, June 2005, Pages 681-689
نویسندگان
Sibel Tunali, Ismail Kiran, Tamer Akar,