Acetate is a superior substrate for microbial fuel cell initiation preceding bioethanol effluent utilization

Verfasser / Beitragende:
[Guotao Sun, Anders Thygesen, Anne Meyer]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/11(2015-06-01), 4905-4915
Format:
Artikel (online)
ID: 605506205
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024 7 0 |a 10.1007/s00253-015-6513-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6513-5 
245 0 0 |a Acetate is a superior substrate for microbial fuel cell initiation preceding bioethanol effluent utilization  |h [Elektronische Daten]  |c [Guotao Sun, Anders Thygesen, Anne Meyer] 
520 3 |a This study assessed cell voltage development, electricity recovery, and microbial community composition in response to initial substrate including acetate, xylose, acetate/xylose 1:1 mixture (ace/xyl), and bioethanol effluent (BE) during microbial fuel cell (MFC) operation at 1000 Ω external resistance. The BE mainly contained 20.5g/L xylose, 1.8g/L arabinose, and 2.5g/L propionic acid. The MFCs initially fed with acetate showed shorter initiation time (1day), higher average cell voltage (634 ± 9mV), and higher coulombic efficiency (31.5 ± 0.5%) than those initially fed with ace/xyl or xylose. However, BE-initiated MFCs only generated 162 ± 1mV. The acetate-initiated MFCs exhibited longer adaptation time (21h) and lower cell voltage (645 ± 10mV) when the substrate was switched to xylose, whereas substrate switching to BE produced the highest voltage (656mV), maximum power density (362 ± 27mW/m2), maximum current density (709 ± 27mA/m2), and coulombic efficiency (25 ± 0.5%) in the acetate-initiated MFCs. The microbial community in acetate-initiated MFCs was less diverse and contained more electrogenic bacteria (13.9 ± 0.4%) including Geobacter sulfurreducens and Desulfuromonas acetexigen than the MFCs initially fed with ace/xyl, xylose, and BE. After switching the substrate to xylose and subsequently to BE, the microbial community in the acetate-initiated MFCs became more diverse, while no significant changes were observed in ace/xyl-, xylose-, and BE-initiated MFCs. The results showed that initial substrate affected the power generation and the capability to adapt to the substrate alteration in MFCs. Acetate-initiated MFCs showed best performance in utilizing BE. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Microbial fuel cell  |2 nationallicence 
690 7 |a Bioethanol effluent  |2 nationallicence 
690 7 |a Denaturing gradient gel electrophoresis  |2 nationallicence 
690 7 |a Biofilm  |2 nationallicence 
690 7 |a Coulombic efficiency  |2 nationallicence 
700 1 |a Sun  |D Guotao  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
700 1 |a Thygesen  |D Anders  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
700 1 |a Meyer  |D Anne  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4905-4915  |x 0175-7598  |q 99:11<4905  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6513-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6513-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sun  |D Guotao  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Thygesen  |D Anders  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Meyer  |D Anne  |u Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Building 229, DK-2800, Kgs. Lyngby, Denmark  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/11(2015-06-01), 4905-4915  |x 0175-7598  |q 99:11<4905  |1 2015  |2 99  |o 253