Electricity generation and modeling of microbial fuel cell from continuous beer brewery wastewater.
Electricity production and modeling of microbial fuel cell (MFC) from continuous beer brewery wastewater was studied in this paper. A single air-cathode MFC was constructed, carbon fiber was used as anode and diluted brewery wastewater (COD=626.58 mg/L) as substrate. The MFC displayed an open-circuit voltage of 0.578 V and a maximum power density of 9.52 W/m(3) (264 mW/m(2)). Using the model based on polarization curve, various voltage losses were quantified. At current density of 1.79 A/m(2), reaction kinetic loss and mass transport loss both achieved to 0.248 V; while ohmic loss was 0.046 V. Results demonstrated that it was feasible and stable for producing bioelectricity from brewery wastewater; while the most important factors which influenced the performance of the MFC are reaction kinetic loss and mass transport loss.
Wen
Qing
Q
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. wenqing_hrbeu@yahoo.com.cn
Wu
Ying
Y
Cao
Dianxue
D
Zhao
Lixin
L
Sun
Qian
Q
D001515:Beer; D001674:Bioelectric Energy Sources; D019149:Bioreactors; D004560:Electricity; D007220:Industrial Waste; D008962:Models, Theoretical; D014873:Water Pollutants
D007220:Industrial Waste; D014873:Water Pollutants