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|Title:||Full-loop operation and cathodic acidification of a microbial fuel cell operated on domestic wastewater|
|Authors:||Lefebvre, O. |
Microbial fuel cell
|Citation:||Lefebvre, O., Shen, Y., Tan, Z., Uzabiaga, A., Chang, I.S., Ng, H.Y. (2011-05). Full-loop operation and cathodic acidification of a microbial fuel cell operated on domestic wastewater. Bioresource Technology 102 (10) : 5841-5848. ScholarBank@NUS Repository.|
|Abstract:||The present study emphasizes the importance of overcoming proton limitation in a microbial fuel cell operated on domestic wastewater. When the anode-treated effluent was allowed to trickle into the cathodic compartment (full-loop operation), high COD and suspended solids removal efficiencies over 75% and 84%, respectively, were achieved while ensuring substantial and sustainable power generation. Lower removal efficiencies resulted in decreased cell electromotive force caused by excess substrate crossover. By decreasing the pH in the cathodic compartment to values below 2, we were able to further increase the maximum power generation by 180% in batch mode and 380% in continuous mode as compared to a negative control (tap water of pH 7.6). Under the optimized conditions, the internal resistance and electromotive force were 11 Ω and 0.6. V, respectively, which correspond to the state of the art. © 2011 Elsevier Ltd.|
|Source Title:||Bioresource Technology|
|Appears in Collections:||Staff Publications|
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