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Surface floating, air cathode, microbial fuel cell with horizontal flow for continuous power production from wastewater
A surface floating, air cathode, microbial fuel cell (MFC) with a horizontal flow is devised and characterized using glucose-based synthetic wastewater. The performance of the MFC is significantly affected by the current-collector of the electrodes. When graphite foil ribbon (150 cm) serves as the current-collector, the respective specific internal resistance and maximum power density are 0.362 Omega m-2 and 124.0 W m-3. The internal resistance can be reduced by increasing the length of the current-collector. For a graphite ribbon current-collector 256 cm long, the specific internal resistance is only 0.187 Omega m-2 and the maximum power density markedly increases to 253.6 W m-3; however, the maximum power density is affected by the current-collector material. When the current-collector is changed to a stainless-steel wire, the maximum power density is reduced to approximately 100 W m-3 because of its high liquidsolid interfacial impedance. During three continuous months of operation, issues such as leaking are not observed and as such, the MFC could be easily scaled-up for wastewater treatment by increasing the electrode size and stacking a number of cells without additional ohmic resistance.
Surface floating, air cathode, microbial fuel cell with horizontal flow for continuous power production from wastewater
A surface floating, air cathode, microbial fuel cell (MFC) with a horizontal flow is devised and characterized using glucose-based synthetic wastewater. The performance of the MFC is significantly affected by the current-collector of the electrodes. When graphite foil ribbon (150 cm) serves as the current-collector, the respective specific internal resistance and maximum power density are 0.362 Omega m-2 and 124.0 W m-3. The internal resistance can be reduced by increasing the length of the current-collector. For a graphite ribbon current-collector 256 cm long, the specific internal resistance is only 0.187 Omega m-2 and the maximum power density markedly increases to 253.6 W m-3; however, the maximum power density is affected by the current-collector material. When the current-collector is changed to a stainless-steel wire, the maximum power density is reduced to approximately 100 W m-3 because of its high liquidsolid interfacial impedance. During three continuous months of operation, issues such as leaking are not observed and as such, the MFC could be easily scaled-up for wastewater treatment by increasing the electrode size and stacking a number of cells without additional ohmic resistance.
Surface floating, air cathode, microbial fuel cell with horizontal flow for continuous power production from wastewater
Song, Young-Chae (Autor:in) / Yoo, Kyu-seon (Autor:in) / Lee, Song-Kuen (Autor:in)
Journal of Power Sources ; 195 ; 6478-6482
2010
5 Seiten, 31 Quellen
Aufsatz (Zeitschrift)
Englisch
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