Initial development and structure of biofilms on microbial fuel cell anodes |
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Authors: | Suzanne T Read Paritam Dutta Phillip L Bond Jürg Keller Korneel Rabaey |
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Institution: | (1) Advanced Water Management Centre, Gehrmann Building, The University of Queensland, QLD 4072 Brisbane, Australia |
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Abstract: | Background Microbial fuel cells (MFCs) rely on electrochemically active bacteria to capture the chemical energy contained in organics
and convert it to electrical energy. Bacteria develop biofilms on the MFC electrodes, allowing considerable conversion capacity
and opportunities for extracellular electron transfer (EET). The present knowledge on EET is centred around two Gram-negative
models, i.e. Shewanella and Geobacter species, as it is believed that Gram-positives cannot perform EET by themselves as the Gram-negatives can. To understand
how bacteria form biofilms within MFCs and how their development, structure and viability affects electron transfer, we performed
pure and co-culture experiments. |
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Keywords: | |
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