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TitleA flat microbial fuel cell for decentralized wastewater valorization : process performance and optimization potential
Author(s)Peixoto, L.
Rodrigues, A. L.
Martins, Gilberto
Nicolau, Ana
Brito, A. G.
Silva, Maria Manuela
Parpot, Pier
Nogueira, R.
KeywordsFlat microbial fuel cell
Wastewater treatment
Decentralized systems
Issue date2013
PublisherTaylor & Francis
JournalEnvironmental Technology
Abstract(s)A very compact flat microbial fuel cell (MFC), with 64 cm2 each for the anode surface and the cathode surface and 1 cm3 each for the anode and cathode chambers, was tested for wastewater treatment with simultaneous electricity production with the ultimate goal of implementing an autonomous service in decentralized wastewater treatment systems. The MFC was operated with municipal wastewater in sequencing batch reactor mode with re-circulation. Current densities up to 407 W/m3 and a carbon removal of 83% were obtained. Interruption in the operation slightly decreased power density, while the re-circulation ratio did not influence power generation. The anode biofilm presented high conductivity, activity and diversity. The denaturing gradient gel electrophoresis band-pattern of the DNA showed the presence of several ribotypes with different species of Shewanellaceae and Geobacteraceae families.
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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