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Comparative study o...
Comparative study of industrial-scale high-solid biogas production from food waste : Process operation and microbiology
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- Westerholm, M. (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Linköpings universitet,Biogas Solutions Research Center,Filosofiska fakulteten,Swedish Univ Agr Sci, Sweden,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Linköping University
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- Liu, Tong (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Swedish Univ Agr Sci, Sweden
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- Schnurer, A. (författare)
- Sveriges lantbruksuniversitet,Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center,Swedish University of Agricultural Sciences, Uppsala,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Linköping University
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(creator_code:org_t)
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- Elsevier, 2020
- 2020
- Engelska.
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Ingår i: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 304
- Relaterad länk:
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https://doi.org/10.1...
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- Anaerobic high-solid treatment (HST) for processing food waste and biogas production is a viable technology with considerable commercial potential. In this study, we examined and compared mesophilic and thermophilic industrial-scale plug-flow digesters. The HSTs demonstrated reasonable biogas yields from food waste (0.4-0.6 Nm(3)CH(4)/kg volatile solids). However, during operation at thermophilic conditions ammonia inhibition (similar to 2 g NH3-N/L) and acid accumulation (6-14 g/L) caused severe process disturbance. Microbial community structures diverged between the processes, with temperature appearing to be a strong driver. A unique feature of the thermophilic HSTs was high abundance of the uncultivated Clostridia group MBA03 and temperature fluctuations in one mesophilic HST were linked to drastically decreased abundance of methanogens and relative abundance of Cloacimonetes. The process data obtained in this study clearly demonstrate both potential and challenges in HST of food waste but also possibilities for management approaches to tackle process imbalance and restore process function.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioenergi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioenergy (hsv//eng)
Nyckelord
- Anaerobic digestion organic fraction of municipal solid waste; Full-scale dry digestion; Plug-flow reactors; Temperature
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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