Development of microbial Fuel Cells(MFCs) for Wastewatertreatment and energy recovery

本研究的目的是通过加强空气阴极MFC的阴极反应来提高MFC的性能（废水处理和发电）。为了加强阴极反应，我们通过向阴极室引入含有不同浓度co2和湿度的气体来检测外部质子供应对阴极反应的影响。此外，我们还可以定量地估计空气阴极mfc阴极反应所消耗的质子源的贡献。碳酸盐溶解是质子的主要来源，而水短缺是阴极反应限制的最关键问题。最后，这些结果表明调整co2含量和湿度的重要性。

The goal of this study was to improve the MFCperformance (wastewater treatment and power generation) by enhanching the the cathode reaction of air-cathode MFC. To enhance the cathode reaction, we examined trhe effect of external proton supply by introducing the gas containing various concentrations of CO 2 and humidity to the cathode chamber. In addition, we could estimate quantitatively contribution of proton sources consumed by cathode reaction of air-cathode MFCs. Carbonate dissolution was a main proton source and water shortage was the most critical problem of cathode- reaction limitation. Finally, these results could suggest importance of adjustment of CO 2 content and humidity.