Implementation of Chitosan modified ultrafiltration hollow fiber as proton exchange membrane of ml-scale microbial fuel cells
- سال انتشار: 1402
- محل انتشار: فصلنامه هیدروژن و پیل سوختی ایران، دوره: 10، شماره: 4
- کد COI اختصاصی: JR_IJHFC-10-4_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 198
نویسندگان
Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
Chemical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran.
چکیده
The study investigated the modification of polyethersulfone (PES), polyvinylidene fluoride (PVDF), and polyacrylonitrile (PAN) hollow fiber membranes using a chitosan solution as the proton exchange membrane for microbial fuel cells (MFCs). Firstly, the performance of the modified PES membrane using ۱, ۲, and ۳% of chitosan in ۰.۱ M acetic acid coating were inspected. Chitosan coating decreased the internal resistance and enhanced the electricity generation of the MFCs. The maximum power and current densities of ۷۵۵.۲۰۲ mW/m۲, and ۵۵۲۵.۴۲ mA/m۲ were achieved for ۳% chitosan-coated PES (PES-۳%chi) compared to ۶۲۹.۵۳۳ mW/m۲ and ۳۲۳۷.۷۹ mA/m۲ for pristine PES membrane. Thereafter, application of a ۳% chitosan coating over the PAN and PVDF membranes exhibited excessive improvement in the bioelectricity generation and wastewater treatment efficiency of the MFCs. The PAN-۳%chi achieved the uppermost power and current densities of ۷۶۵.۱۴۷ mW/m۲ and ۸۲۹۷.۴۶ mA/m۲, which were ۱.۷ and ۲.۶ higher than the PAN membrane (۴۵۰.۶۷۵ mW/m۲ and ۳۲۱۶.۵۶ mA/m۲). The electricity generation of the PVDF membrane was enhanced by ۵.۳ times (۳۳۷.۱۳۴ mW/m۲ and ۲۷۲۰.۱۶ mA/m۲) after the addition of ۳% chitosan, likely due to the improvement in hydrophilicity and proton conductivity. The COD removal efficiencies of ۴۲.۴۱, ۴۰.۵۵, and ۳۶.۱۱% were obtained by PAN-۳%chi, PES-۳%chi, and PVDF-۳%chi membranes, respectively, which were ۳.۵۳, ۴.۰۱, and ۵.۵۳ times higher than the values obtained by their pristine unmodified samples.کلیدواژه ها
Microbial fuel cell, Chitosan, Hollow fiber membrane, domestic wastewater, Wastewater treatmentاطلاعات بیشتر در مورد COI
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