Research On An Air-Cathode Single Chamber Microbial Fuel Cell Using Organic Wastewater

To increase energy output and reduce the cost of MFCs, we examined power generation in the air-cathode single chamber MFC containing anode chamber filled with graphite particles and proton exchange membrane (PEM). Electrochemical performance of the MFC from simulation wastewater was investigated. The results show that the maximum output voltage is 0.417V after 2300 min of operation, the maximum power density is 1319mW.m(-3), meanwhile, internal resistance is 130 Omega, COD removal achieves 93.6% with 5mmo/L glucose. The output power density increases with initial concentration of substrate, but it has a "saturation". The output voltage reduces from 0.428V to 0.266V, when the pH value of anode solution decreases from 6.92 to 5.05.