Microbial community dynamics in two-chambered microbial fuel cells: effect of different ion exchange membranes
2015
Sotres, A. | Diaz Marcos, J. | Guivernau, M. | Illa, J. | Magri, A. | Prenafeta Boldu, F.X. | Bonmati, A. | Viñas, M. | IRTA GIRO JOINT RESEARCH UNIT IRTA UPC BARCELONA ESP ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | NANOMETRIC TECHNIQUES UNIT BARCELONA ESP ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Universitat de Lleida | Gestion environnementale et traitement biologique des déchets (UR GERE) ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | IRTA GRIO JOINT RESEARCH UNIT IRTA UPC BARCELONA ESP ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)
[Departement_IRSTEA]Ecotechnologies [TR1_IRSTEA]TED [Axe_IRSTEA]TED-PANDOR
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Mostrar más [+] Menos [-]Inglés. The utilization of different kinds of ion exchange membrane is a common practice in bioelectrochemical systems such as two-chambered microbial fuel cells (MFCs). However, little is known about the effect of membrane materials on the anodic microbial community diversity. RESULTSThe effect of two cationic and one anionic exchange membranes (Nafion N-117, Ultrex CMI-7000, and Ultrex AMI-7000) on the microbial community dynamics of Eubacteria and Archaea has been assessed in two-chambered MFCs. The experimental results indicated that the eubacterial community in the anodic chamber was not affected by the membrane materials, being predominantly populations of Bacteroidetes (Porphyromonadaceae) and -proteobacteria (Alcaligenaceae and Comamonadaceae). On the other hand, the archaeal counterpart appears to be highly dependent on the type of membrane used, as was evidenced by the selective enrichment of Methanosarcina sp. in the MFC equipped with the membrane Nafion N-117 which was the MFC that showed the highest current production. CONCLUSIONSThe results obtained in the present study suggest that membrane materials affect archaeal diversity whereas both anodofilic eubacteria and methanogenic archaea populations could play an important role in the overall MFC process performance. (c) 2014 Society of Chemical Industry
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