College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
Bioresour Technol. 2017 Nov;243:1087-1096. doi: 10.1016/j.biortech.2017.07.071. Epub 2017 Jul 16.
A continuous microbial fuel cell system was constructed treating ammonium/organics rich wastewater. Operational performance of MFC system, mechanisms of ammonium removal, effect of ammonium on organics removal and energy output, C and N balance of anode chamber and microbial community analysis of anode chamber were studied. It was concluded that 0.0914kg/md NH-N and 5.739kg/md COD were removed from anode chamber and simultaneous nitrification and denitrification (SND) occurred in cathode chamber resulting in COD, TN removal rate of 88.53%, 71.35% respectively. Excess ammonium affected energy output and the MFC system reached maximum energy output of 816.8mV and 62.94mW/m. In anode chamber, Spirochaetes bacterium sp., Methanobacterium formicicum sp. was predominant in bacteria, archaea communities respectively which contributed to wastewater treatment and electricity generation. This study showed the potential for practical application of continuous flow MFC system treating ammonium/organics rich wastewater and achieving electricity generation simultaneously.
构建了连续微生物燃料电池系统，用于处理富铵/有机物废水。研究了 MFC 系统的运行性能、铵去除机制、铵对有机物去除和能量输出的影响、阳极室的 C 和 N 平衡以及阳极室微生物群落分析。结果表明，阳极室去除了 0.0914kg/md NH-N 和 5.739kg/md COD，同时在阴极室发生了同步硝化反硝化（SND），COD、TN 的去除率分别达到 88.53%和 71.35%。过量的铵会影响能量输出，MFC 系统达到最大能量输出 816.8mV 和 62.94mW/m。在阳极室中，细菌和古菌群落中分别以螺旋体菌（Spirochaetes bacterium sp.）和产甲烷菌（Methanobacterium formicicum sp.）为主，它们对废水处理和发电做出了贡献。本研究表明，连续流微生物燃料电池系统处理富铵/有机物废水并同时发电具有实际应用的潜力。
