为了达到在处理生活污水的同时可以产生电能的目的,研究了微生物燃料电池与传统的A2/O工艺相耦合的性能。实验中启动电阻为1 000Ω,经过37 d的间歇式培养,系统成功启动,最大电压达到574 m V,对COD和氨氮的去除率分别达到了92.9%和72.1%...为了达到在处理生活污水的同时可以产生电能的目的,研究了微生物燃料电池与传统的A2/O工艺相耦合的性能。实验中启动电阻为1 000Ω,经过37 d的间歇式培养,系统成功启动,最大电压达到574 m V,对COD和氨氮的去除率分别达到了92.9%和72.1%。启动成功后外阻改为100Ω,采用连续进水方式考察不同C/N对系统产电及污水处理效果的影响。实验取C/N分别为3、4、2和6,结果表明,C/N为4.2时系统达到最大电压为534 m V,对COD的去除率达到了96.1%~97.1%,C/N对氨氮的去除率影响不大。实验说明,MFC耦合A2/O工艺在产电和处理废水方面具有一定的发展潜力。展开更多
Microbial fuel cell (MFC) embedded in anaerobic-anoxic-oxic (A2/O) process has positive effects on wastewater treatment, which can enhance the efficiencies of pollutants’ removal, along with electricity production. B...Microbial fuel cell (MFC) embedded in anaerobic-anoxic-oxic (A2/O) process has positive effects on wastewater treatment, which can enhance the efficiencies of pollutants’ removal, along with electricity production. But the electricity generation performance and its optimization of MFC embedded in A2O process still needs to be further investigated. In this study, in order to optimize the contaminants removal and electricity production of the MFC-A2/O reactor, a lab-scale corridor-style MFC-A2/O reactor, which could simulate the practical A2/O biological reactor better, was designed and operated. The removal efficiencies of chemical oxygen demand, total nitrogen and total phosphorus were continuously monitored so as the electricity generation. In addition, the influences of the structural parameters’ changes of MFC on the output voltage, including electrode material, the directly connected area and the distance between electrodes, were also studied. The results elucidated that the effluent quality of A2/O reactor could be improved when MFC was embedded, and all the investigated structural factors were closely related to the electricity generation performance of MFC to some extent.展开更多
文摘为了达到在处理生活污水的同时可以产生电能的目的,研究了微生物燃料电池与传统的A2/O工艺相耦合的性能。实验中启动电阻为1 000Ω,经过37 d的间歇式培养,系统成功启动,最大电压达到574 m V,对COD和氨氮的去除率分别达到了92.9%和72.1%。启动成功后外阻改为100Ω,采用连续进水方式考察不同C/N对系统产电及污水处理效果的影响。实验取C/N分别为3、4、2和6,结果表明,C/N为4.2时系统达到最大电压为534 m V,对COD的去除率达到了96.1%~97.1%,C/N对氨氮的去除率影响不大。实验说明,MFC耦合A2/O工艺在产电和处理废水方面具有一定的发展潜力。
文摘Microbial fuel cell (MFC) embedded in anaerobic-anoxic-oxic (A2/O) process has positive effects on wastewater treatment, which can enhance the efficiencies of pollutants’ removal, along with electricity production. But the electricity generation performance and its optimization of MFC embedded in A2O process still needs to be further investigated. In this study, in order to optimize the contaminants removal and electricity production of the MFC-A2/O reactor, a lab-scale corridor-style MFC-A2/O reactor, which could simulate the practical A2/O biological reactor better, was designed and operated. The removal efficiencies of chemical oxygen demand, total nitrogen and total phosphorus were continuously monitored so as the electricity generation. In addition, the influences of the structural parameters’ changes of MFC on the output voltage, including electrode material, the directly connected area and the distance between electrodes, were also studied. The results elucidated that the effluent quality of A2/O reactor could be improved when MFC was embedded, and all the investigated structural factors were closely related to the electricity generation performance of MFC to some extent.
