(690a) Electricity Performance of Microbial Fuel Cell with Mixed Inoculation of Yeast and E.coli

Yuan, J., SUNY ESF
Liu, S., SUNY College of Environmental Science and Forestry

Yeast and E.coli could be ideal MFC bio-catalyst since they are robust, safe, easily handled. What more they can metabolize a wide range of substrates with high catalytic rate. In this study, a typical two-chamber MFC with the only substrate of glucose was constructed by inoculation with yeast and E.coli. The results show that : The electric power of the mixed inoculated MFC (351.45mW/ m2) is obviously better than that of the single inoculated MFC. This Highest electric power is 47% higher than E.coli based MFC (185.71 mW/m2) and 39% higher than that of yeast based MFC (215.22mW/m2). The internal resistance of MFC is smaller when it inoculated with both yeast and E.coli rather than a single organism, which means these two organisms play a mutually reinforcing role in the process of electron transfer. Therefore, mixed inoculation of yeast and E.coli in MFC reduce resistance of electron transfer as well as whole resistance of MFC.