Power production performance and water purification of composite vertical flow constructed wetland-microbial fuel cell ( CW-MFC) coupling system
Artificial wetland ( CW ) and microbial fuel cell technology ( MFC ) are two potential environmental technologies that are used for water pollution control and renewable energy production. At present,most studies are mainly explored for high-end artificial wetlands-microbial fuel cells, and it is difficult to be used in the actual artificial wetland. Therefore, this article mainly takes vertical flow artificial wetlands as the research object to study the performance and water purification effect of composite vertical artificial wetland-microbial fuel cell coupling system. The results show that in the same vertical current CW-MFC system,the performance of electricity production has a certain relationship with the content of water pollutants;In the case of simulating natural water flow, protons and electrons generated by CW-MFC1 anode biological oxidation can migrate to CW-MFC2 cathode, and undergo oxidation-reduction reactions with its electron acceptors to generate voltage current. Its voltage is higher than a single vertical flow CW-MFC system. In the case of simulation, the CW-MFC system has a good removal effect on various water pollutants. Among them, the removal efficiency of phosphate and total phosphorus is 97. 5％ and 97. 9％. The removal efficiency of ammonia nitrogen and total nitrogen is 86. 4％and 66％,and the minimum removal efficiency of COD is 36. 5％. It indicates that of water body pollutants are effectively removed in the composite vertical streaming CW-MFC system.
environmental protection engineeringartificial wetland-microbial fuel cellpollutant removal performanceelectricity production performance
万方数据
维普
