کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7704241 | 1496889 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved decolorization of dye wastewater in an electrochemical system powered by microbial fuel cells and intensified by micro-electrolysis
ترجمه فارسی عنوان
رنگ تصفیه فاضلاب رنگی در یک سیستم الکتروشیمیایی توسط سلول های سوختی میکروبی بهبود یافته و با میکرو الکترولیز تشدید می شود
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کلمات کلیدی
سلول های سوختی میکروبی، رنگ زدایی، متیل نارنجی، میکرو الکترولیز،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Electrochemical decolorization is of particular importance for the efficient treatment of dye wastewater. A promising electrochemical system powered by microbial fuel cells (MFCs) and intensified by Fe-C micro-electrolysis is proposed and enhanced decolorization of methyl orange (MO) is realized in this study. The decolorization efficiency reached as high as 97.1â¯Â±â¯1.8% after 180â¯min of operation with initial MO concentration of 50â¯mg/L and applied voltage of 700â¯mV. Decolorization efficiency initially increased and then decreased with rising Fe-to-C ratio. In addition, efficiency was enhanced with the increase of aeration rate up to 6.0â¯L/min. Lower initial MO concentration and pH were also shown to facilitate MO decolorization. A study of mechanisms, with results from control tests and scavenger experiments indicated that MO decolorization was contributed by the indirect oxidation by various oxidizing substances, especially O2â, that were generated during the process. MO molecule was decomposed and low molecular weight compounds such as indolizine, hydrazide and thione were generated. This study advances the performance of MFC in dye wastewater treatment by combining with a standard technique.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioelectrochemistry - Volume 124, December 2018, Pages 112-118
Journal: Bioelectrochemistry - Volume 124, December 2018, Pages 112-118
نویسندگان
Shuai Liang, Baogang Zhang, Jiaxin Shi, Ting Wang, Lifeng Zhang, Zhijun Wang, Cuibai Chen,