School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Biosens Bioelectron. 2013 Nov 15;49:92-8. doi: 10.1016/j.bios.2013.04.005. Epub 2013 Apr 18.
A novel combined system of sludge microbial fuel cell (S-MFC) stack and membrane bioreactor (MBR) was proposed in this study. The non-consumed sludge in the MBR sludge-fed S-MFC was recycled to the MBR. In the combined system, the COD and ammonia treatment efficiencies were more than 90% and the sludge reduction was 5.1% higher than that of the conventional MBR. It's worth noting that the energy recovery and fouling mitigation were observed in the combined system. In the single S-MFC, about 75 mg L(-1) COD could be translated to electricity during one cycle. The average voltage and maximum power production of the single S-MFC were 430 mV and 51 mWm(-2), respectively. Additionally, the combined system was able to mitigate membrane fouling by the sludge modification. Except for the content decrease (22%), S-MFC destroyed simple aromatic proteins and tryptophan protein-like substances in loosely bound extracellular polymeric substances (LB-EPS). These results indicated that effective wastewater treatment, sludge reduction, energy recovery and membrane fouling mitigation could be obtained in the combined system.
本研究提出了一种新型的污泥微生物燃料电池（S-MFC）堆和膜生物反应器（MBR）组合系统。MBR 中未消耗的污泥被循环回 MBR。在组合系统中，COD 和氨的处理效率均超过 90%，污泥减少量比传统 MBR 高 5.1%。值得注意的是，在组合系统中观察到了能量回收和污染缓解。在单个 S-MFC 中，一个循环中约有 75mgL(-1)的 COD 可转化为电能。单个 S-MFC 的平均电压和最大功率输出分别为 430mV 和 51mWm(-2)。此外，该组合系统能够通过污泥改性来减轻膜污染。除含量下降（22%）外，S-MFC 还破坏了 LB-EPS 中简单芳香族蛋白质和色氨酸蛋白样物质。这些结果表明，在组合系统中可以实现有效处理废水、减少污泥、回收能量和缓解膜污染。
