| Autor: |
Ribot‐Llobet, Edgar, Montpart, Nuria, Ruiz‐Franco, Yolanda, Rago, Laura, Lafuente, Javier, Baeza, Juan Antonio, Guisasola, Albert |
| Předmět: |
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| Zdroj: |
Journal of Chemical Technology & Biotechnology; Nov2014, Vol. 89 Issue 11, p1727-1732, 6p |
| Abstrakt: |
BACKGROUND The microbial fuel cell ( MFC) technology transforms the chemical energy present in substrates into electricity. Starting-up these systems, i.e. enriching the anodic community in exoelectrogenic bacteria, is a lengthy process or requires expensive equipment. RESULTS An easy and low-cost procedure based on a sediment MFC was developed to select microbial communities with exoelectrogenic activity from the anaerobic sludge of a waste water treatment plant ( WWTP). The configuration was based on a simple vessel working as a single chamber MFC with a cathode of stainless steel wool in the liquid surface and a submerged graphite fibre brush as anode. In 30 days of operation, a biofilm with remarkable exoelectrogenic activity was grown on the anode of the MFC. This graphite fibre brush anode was able to supply 0.9 W m-2 when working in an air-cathode MFC ( AC-MFC) for 45 days. CONCLUSION The procedure presented was demonstrated to be a successful, low-cost and low-maintenance procedure to obtain exoelectrogenic activity and had performances comparable with other more costly and complex inoculation procedures. The Sed- MFC does not require a potentiostat, external aeration, stirring, membranes or an enriched inoculum in the exoelectrogenic biomass. © 2013 Society of Chemical Industry [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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