Behavior of two-chamber microbial electrochemical systems started-up with different ion-exchange membrane separators

0500732 - ÚMCH 2020 RIV NL eng J - Článek v odborném periodiku
Koók, L. - Desmond-Le Quéméner, E. - Bakonyi, P. - Žitka, Jan - Trably, E. - Tóth, G. - Pavlovec, Lukáš - Pientka, Zbyněk - Bernet, N. - Bélafi-Bakó, K. - Nemestóthy, N.
Behavior of two-chamber microbial electrochemical systems started-up with different ion-exchange membrane separators.
Bioresource Technology. Roč. 278, April (2019), s. 279-286. ISSN 0960-8524. E-ISSN 1873-2976
Institucionální podpora: RVO:61389013
Klíčová slova: bioelectrochemical system * microbial fuel cell * membrane
Obor OECD: Polymer science
Impakt faktor: 7.539, rok: 2019
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S096085241930121X?via%3Dihub

In this study, microbial fuel cells (MFCs) – operated with novel cation- and anion-exchange membranes, in particular AN-VPA 60 (CEM) and PSEBS DABCO (AEM) – were assessed comparatively with Nafion proton exchange membrane (PEM). The process characterization involved versatile electrochemical (polarization, electrochemical impedance spectroscopy – EIS, cyclic voltammetry – CV) and biological (microbial structure analysis) methods in order to reveal the influence of membrane-type during start-up. In fact, the use of AEM led to 2–5 times higher energy yields than CEM and PEM and the lowest MFC internal resistance (148 ± 17 Ω) by the end of start-up. Regardless of the membrane-type, Geobacter was dominantly enriched on all anodes. Besides, CV and EIS measurements implied higher anode surface coverage of redox compounds for MFCs and lower membrane resistance with AEM, respectively. As a result, AEM based on PSEBS DABCO could be found as a promising material to substitute Nafion.
Trvalý link: http://hdl.handle.net/11104/0292992