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Investigation of factors influencing biogas production in a large-scale thermophilic municipal biogas plant

Title data

Weiss, Agnes ; Jérôme, Valérie ; Burghardt, Diana ; Likke, Likke ; Peiffer, Stefan ; Hofstetter, Eugen-Maria ; Gabler, Ralf ; Freitag, Ruth:
Investigation of factors influencing biogas production in a large-scale thermophilic municipal biogas plant.
In: Applied Microbiology and Biotechnology. Vol. 84 (2009) Issue 5 . - pp. 987-1001.
ISSN 1432-0614
DOI: https://doi.org/10.1007/s00253-009-2093-6

Abstract in another language

A continuously operated, thermophilic, municipal biogas plant was observed over 26 months (sampling twice per month) in regard to a number of physicochemical parameters and the biogas production. Biogas yields were put in correlation to parameters such as the volatile fatty acid concentration, the pH and the ammonium concentration. When the residing microbiota was classified via analysis of the 16S rRNA genes, most bacterial sequences matched with unidentified or uncultured bacteria from similar habitats. Of the archaeal sequences, 78.4% were identified as belonging to the genus Methanoculleus, which has not previously been reported for biogas plants, but is known to efficiently use H2 and CO2 produced by the degradation of fatty acids by syntrophic microorganisms. In order to further investigate the influence of varied amounts of ammonia (2--8 g/L) and volatile fatty acids on biogas production and composition (methane/CO2), laboratory scale satellite experiments were performed in parallel to the technical plant. Finally, ammonia stripping of the process water of the technical plant was accomplished, a measure through which the ammonia entering the biogas reactor via the mash could be nearly halved, which increased the energy output of the biogas plant by almost 20%.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER80423
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Hydrology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Hydrology > Chair Hydrology - Univ.-Prof. Dr. Stefan Peiffer
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Process Biotechnology
Faculties > Faculty of Engineering Science > Chair Process Biotechnology > Chair Process Biotechnology - Univ.-Prof. Dr. Ruth Freitag
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 500 Science
600 Technology, medicine, applied sciences
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 22 Feb 2016 08:06
Last Modified: 28 Feb 2019 10:08
URI: https://eref.uni-bayreuth.de/id/eprint/31032