Szczegóły obiektu: Can a fermentation gas mainly produced by rumen Isotrichidae ciliates be a potential source of biohydrogen and a fuel for a chemical fuel cell?

Instytucja dostarczająca:Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

Opis

Title:
Can a fermentation gas mainly produced by rumen Isotrichidae ciliates be a potential source of biohydrogen and a fuel for a chemical fuel cell?
Creator:
Piela, Piotr;
Michałowski, Tadeusz;
Miltko, Renata;
Szewczyk, Krzysztof W.;
Sikora, Radosław;
Grzesiuk, Elzbieta;
Sikora, Anna
Description:
ABSTRACT Bacteria, fungi and protozoa inhabiting the rumen – the largest chamber of the ruminants’ stomach, release large quantities of hydrogen during the fermentation of carbohydrates. The hydrogen is used by coexisting methanogens to produce methane in energy-yielding processes. This work shows, for the first time, a fundamental possibility of using a hydrogen-rich fermentation gas produced by selected rumen ciliates to feed a low-temperature hydrogen fuel cell. A biohydrogen fuel cell (BHFC) was constructed consisting of (i) a bioreactor, in which a hydrogen-rich gas was produced from glucose by rumen ciliates, mainly of the Isotrichidae family, deprived of intra- and extracellular bacteria, methanogens, and fungi, and (ii) a chemical fuel cell of the polymer-electrolyte type (PEFC). The fuel cell was used as a tester of the technical applicability of the fermentation gas produced by the rumen ciliates for power generation. The average estimated hydrogen yield was ca. 1.15 mol H2 per mol of fermented glucose. The BHFC performance was equal to the performance of the PEFC running on pure hydrogen. No fuel cell poisoning effects were detected. A maximum power density of 1.66 kW/m2 (PEFC geometric area) was obtained at room temperature. The maximum volumetric power density was 128 W/m3 but the coulombic efficiency was only ca. 3.8%. The configuration of the bioreactor limited the continuous operation time of this BHFC to ca. 14 hours.
Object availability:
Dostęp otwarty
Date:
2010.07
Type:
Article;
PeerReviewed
Language:
angielski
Format:
application/pdf
Publisher:
Korean Society of Microbiology and Biotechnology
Relation: http://eprints.ibb.waw.pl/69 ;
PMID: 20668402
Subject:
QH301 Biology
Identifier: http://eprints.ibb.waw.pl/69/1/Piela_2010.pdf ;
Piela, Piotr and Michałowski, Tadeusz and Miltko, Renata and Szewczyk, Krzysztof W. and Sikora, Radosław and Grzesiuk, Elzbieta and Sikora, Anna (2010) Can a fermentation gas mainly produced by rumen Isotrichidae ciliates be a potential source of biohydrogen and a fuel for a chemical fuel cell? Journal of Microbiology and Biotechnology, 20 (7). pp. 1092-1100. ISSN ISSN: 1017-7825
Data provider:
Repozytorium Instytutu Biochemii i Biofizyki Polskiej Akademii Nauk

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Szczegóły obiektu: Can a fermentation gas mainly produced by rumen Isotrichidae ciliates be a potential source of biohydrogen and a fuel for a chemical fuel cell?

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