摘要
The working mechanism of MFC used for simultaneous nitrogen removal and electricity generation was studied.The results show that the electrode biofilms and suspension had different modes of electron transfer.The microorganisms growing on the electrodes and bioflocs could transfer electrons by direct contact and intermediaries respectively.The electrode biofilms and bioflocs were dominant in different functional spaces,and played a synergistic role in the process of contaminant removal,but showed a certain competitive relationship in the process of electricity generation.This study can provide a theoretical basis for the development of a new low-consumption wastewater treatment technology and promote technological innovation in wastewater treatment.
The working mechanism of MFC used for simultaneous nitrogen removal and electricity generation was studied. The results show that the electrode biofilms and suspension had different modes of electron transfer. The microorganisms growing on the electrodes and bioflocs could transfer electrons by direct contact and intermediaries respectively. The electrode biofilms and bioflocs were dominant in different functional spaces,and played a synergistic role in the process of contaminant removal,but showed a certain competitive relationship in the process of electricity generation. This study can provide a theoretical basis for the development of a new low-consumption wastewater treatment technology and promote technological innovation in wastewater treatment.
基金
Supported by Natural Science Foundation of Shandong Province,China(ZR2019QEE039)
Natural Science Foundation of Zhejiang Province,China(LY18E080007)
National Natural Science Foundation of China(51808494)
