Study on Microbial Fuel Cell with Piggery Sewage as Substrate

Using the piggery sewage as substrate, using potassium ferricyanide cathode dual chamber microbial fuel cell, changing the electrode parameters and reaction conditions, that is inspected the output voltage, power density and removal rate of COD. The results show that when the change of electrode gap, the COD removal rate is correlated positively with the change of voltage and power density, the more volume of granular activated carbon, the higher COD removal rate, which can be reached 91% at 70%; longer HRT, MRT and SRT condition, COD decreased significantly; when pH=7, the MFC power output and COD removal rate is the largest, respectively 233.7mW/m(2), 79.1%; at the range of 20 similar to 35 degrees C, the decrease of the temperature enhances the ability of MFC to sewage treatment, and r the highest is 83% at 20 degrees C.