Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721 302, India.
Water Sci Technol. 2011;64(4):917-22. doi: 10.2166/wst.2011.704.
The performance of dual chambered mediator-less microbial fuel cell (MFC) operated under batch mode was evaluated under different operating temperatures, ranging between 20 and 55 degrees C, with step increase in temperature of 5 degrees C. Synthetic wastewater with sucrose as carbon source having chemical oxygen demand (COD) of 519-555 mg/L was used in the study. Temperature was a crucial factor in the performance of MFCs for both COD removal and electricity production. The MFC demonstrated highest COD removal efficiency of 84% and power density normalized to the anode surface area of 34.38 mW/m2 at operating temperature of 40 degrees C. Higher VSS to SS ratio was observed at the operating temperature between 35 and 45 degrees C. Under different operating temperatures the observed sludge yield was in the range of 0.05 to 0.14 g VSS/g COD removed. The maximum Coulombic and energy efficiencies were obtained at 40 degrees C, with values of 7.39 and 13.14%, respectively. Internal resistance of the MFC decreased with increase in operating temperature. Maximum internal resistance of 1,150 omega was observed when the MFC was operated at 20 degrees C; whereas the minimum internal resistance (552 omega) was observed at 55 degrees C.
在批处理模式下运行的无介体双室微生物燃料电池（MFC）的性能在 20 至 55°C 之间的不同操作温度下进行了评估，温度以 5°C 的步长增加。研究中使用了以蔗糖为碳源、化学需氧量（COD）为 519-555mg/L 的合成废水。温度是 MFC 在 COD 去除和发电性能方面的关键因素。在 40°C 的工作温度下，MFC 表现出最高的 COD 去除效率（84%）和归一化到阳极表面积的功率密度（34.38mW/m2）。在 35 至 45°C 的工作温度范围内观察到较高的 VSS 与 SS 比值。在不同的操作温度下，观察到的污泥产率在 0.05 至 0.14gVSS/gCOD 去除之间。在 40°C 时获得了最大的库仑效率和能量效率，分别为 7.39%和 13.14%。随着操作温度的升高，MFC 的内阻降低。当 MFC 在 20°C 下运行时，观察到最大内阻为 1150Ω；而当 MFC 在 55°C 下运行时，观察到最小内阻（552Ω）。
