State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Bioresour Technol. 2013 Sep;144:94-9. doi: 10.1016/j.biortech.2013.06.072. Epub 2013 Jun 28.
Microbial fuel cell (MFC) was studied as an alternate and a novel way to dispose food wastes (FWs) in a waste-to-energy form. Different organic loading rate obviously affected the performance of MFCs fed with FWs. The maximum power density of 18 W/m(3) (556 mW/m(2)) was obtained at COD of 3200±400 mg/L and the maximum coulombic efficiency (CE) was ~27.0% at COD of 4900±350 mg/L. The maximum removals of COD, total carbohydrate (TC) and total nitrogen (TN) were ~86.4%, ~95.9% and ~16.1%, respectively. Microbial community analysis using 454 pyrosequencing of 16S rRNA gene demonstrated the combination of the dominant genera of the exoelectrogenic Geobacter and fermentative Bacteroides effectively drove highly efficient and reliable MFC systems with functions of organic matters degradation and electricity generation.
微生物燃料电池 (MFC) 被研究为一种替代和新颖的方法，以废物能源的形式处理食物废物 (FWs)。不同的有机负荷率明显影响了以 FWs 为食的 MFC 的性能。在 COD 为 3200±400mg/L 时，获得了约 18W/m³（~556mW/m²）的最大功率密度，在 COD 为 4900±350mg/L 时，获得了约 27.0%的最大库仑效率 (CE)。COD、总碳水化合物 (TC) 和总氮 (TN) 的最大去除率分别约为 86.4%、95.9%和 16.1%。使用 16S rRNA 基因的 454 焦磷酸测序进行微生物群落分析表明，优势属的外生菌 Geobacter 和发酵菌 Bacteroides 的组合有效地驱动了高效可靠的 MFC 系统，具有有机物降解和发电功能。
