کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7704651 | 1496892 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enrichment culture of electroactive microorganisms with high magnetic susceptibility enhances the performance of microbial fuel cells
ترجمه فارسی عنوان
فرهنگ غنی سازی میکروارگانیسم های الکتریکی با حساسیت بالا مغناطیسی باعث افزایش عملکرد سلول های سوختی میکروبی می شود
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Many electroactive microorganisms (EAMs) are known as dissimilatory iron-reducing bacteria (DIRB) which can access iron as an electron acceptor to transfer electrons during the process of respiration. Previous research has shown that magnetic susceptibility (Ïlf) could be used as an indicator of DIRB activities. However, the relationship between Ïlf and electroactivity of EAMs is still unclear. Here, we report that after sediments of the Sha River enriched with amorphous iron, the Ïlf of enrichment cultures increased dramatically. The reactor inoculated with higher Ïlf enrichment cultures started earlier and had a higher peak voltage (0.228â¯V), higher power density (310.14â¯mWâ¯mâ2) and higher coulombic efficiency (10.16%) than lower Ïlf cultures. Sequencing of bacterial 16S rRNA gene amplicons and Ïlf measurement revealed that relative abundance of dominant phyla Proteobacteria increased with Ïlf values in sediments. Further analysis of cyclic voltammetry curves and bacterial terminal-restriction fragment length polymorphism (T-RFLP) of bacterial rRNA genes indicated that the improved performance of the MFCs might be due to a highly electroactive microbial community that the 162â¯bp terminal restriction fragments (TRFs) originated from. Our results suggested a potential correlation between Ïlf and presence of EAM indicating a promising route for fast screening in complex environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioelectrochemistry - Volume 121, June 2018, Pages 65-73
Journal: Bioelectrochemistry - Volume 121, June 2018, Pages 65-73
نویسندگان
Lei Chen, Peng Zhang, Weitao Shang, Hongxia Zhang, Yuntao Li, Weiguo Zhang, Zhaojie Zhang, Fanghua Liu,