hig.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Methane yield from SS-AD: Experiences to learn by a full spectrum analysis at laboratory-, pilot- and full-scale
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.ORCID iD: 0000-0002-2838-6545
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.ORCID iD: 0000-0002-5661-2917
2019 (English)In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 127, article id 105270Article, review/survey (Refereed) Published
Abstract [en]

Solid-state anaerobic digestion (SS-AD) takes place when solid content of the substrate is higher than 15%. Some advantages of this technology have been recognized as e.g., less required water added to raw feedstock and consequently minimized digester size and cost, higher volumetric organic loading rates (OLR) that may lead to higher efficiency methane yield and better acceptance of a wide range of feedstocks. However, scientific studies of SS-AD at pilot- and full-scale are very few and difficulties have been reported in operating SS-AD, especially when the system undergoes a scale-up, where methane production is the purpose. As a result, this review gives a summary of scientific studies for SS-AD processes at laboratory-, pilot- and full-scale, where a great diversity of substrate composition, reactor design and operational parameters have been categorized, and their performances in terms of methane yield have been analyzed. This, in turn, helps to identify that factors affecting methane yields at different scales arise mainly from operational conditions as well as the characteristic of feedstocks. This review even contributes to suggest several strategies for improvement of methane yield at full-scale.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 127, article id 105270
Keywords [en]
Solid-state anaerobic digestion, Methane yield, Improvement
National Category
Other Environmental Engineering
Research subject
no Strategic Research Area (SFO)
Identifiers
URN: urn:nbn:se:hig:diva-30037DOI: 10.1016/j.biombioe.2019.105270ISI: 000478564300033Scopus ID: 2-s2.0-85067212403OAI: oai:DiVA.org:hig-30037DiVA, id: diva2:1327112
Available from: 2019-06-19 Created: 2019-06-19 Last updated: 2024-02-12Bibliographically approved
In thesis
1. Renewable Energy and Nutrient Valorization from Anaerobic Digestion: Resource-Efficient Solutions
Open this publication in new window or tab >>Renewable Energy and Nutrient Valorization from Anaerobic Digestion: Resource-Efficient Solutions
2023 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis presents a comprehensive analysis aimed at understanding process performance, methane yield, and key influencing factors within the context of solid-state anaerobic digestion (SS-AD). SS-AD is used to treat organic material with high solids content, which can be challenging to address by alternative methods. The investigation involves modelling and simulation exploring mass and energy balances and the associated environmental implications. To achieve this, a waste management tool, ORganic WAste REsearch (ORWARE) was adapted and validated to suit the unique parameters of SS-AD operating under a plug-flow reactor configuration, representing a specific case study. The search of an optimal feedstock mix that enhances the digestion process and energy performance is highlighted. Findings suggest that feedstock selection significantly affects methane yield in SS-AD systems, and optimizing substrate mixtures can enhance process efficiency. Key considerations include biodegradability and lignocellulosic content. Operational parameters, such as temperature variations, impact the results from the model, while responsiveness of hydraulic retention time and organic loading rate remains limited. A further comparison between a liquid anaerobic digestion (L-AD) vs SS-AD is made, despite similar methane yields, SS-AD outperforms due to higher energy turnover. Additionally, effective management of digestate nutrients is crucial for its biofertilizer use. Beyond the biogas system, the thesis explores interconnected relationships between SS-AD inputs and outputs and their subsequent use as resources for a hydroponic greenhouse production system. The examination of system interconnections and their broader implications emphasizes the importance of comprehensive assessments when integrating biogas systems beyond their conventional applications.

Abstract [sv]

Denna avhandling presenterar en omfattande analys som syftar till att förstå processprestanda, metanutbyte, och viktiga påverkande faktorer inom ramen för torrötning. Torrötning används för att behandla organiskt material med hög torrhalt, vilket kan vara svårt att hantera med alternativa metoder. Undersökningen omfattar modellering och simulering för att utforska mass- och energibalanser och därmed sammanhängande miljökonsekvenser. För att uppnå detta anpassades och validerades ett verktyg för avfallshantering ORganic WAste REsearch (ORWARE) för att passa en torrötnings-anläggning med pluggflödereaktor, vilket representerar en specifik fallstudie. En optimal råvarublandning som förbättrar rötningsprocessen och energiprestanda lyfts fram. Resultaten tyder på att valet av råmaterial avsevärt påverkar metanutbytet i torrötnings-system, och att optimera substratblandningar kan förbättra processeffektiviteten. Viktiga överväganden inkluderar biologisk nedbrytbarhet och lignocellulosahalt. Driftsparametrar, såsom temperaturvariationer, påverkar torrötning, medan känsligheten för hydraulisk retentionstid och organisk belastningshastighet i den modifierade pluggflödereaktor-konfigurationen förblir begränsad. I en jämförelse mellan våtrötning och torrötning så har både teknikerna liknande metanutbyten, men torrötning överträffar på grund av förbättrad energibalans. Avhandlingen undersöker dessutom aspekter bortom biogassystemet. Den utforskar de sammankopplade förhållandena mellan torrötning-utgångar och deras efterföljande användning som resursinsatser för ett hydroponiskt växthusproduktionssystem. Utforskningen av systemsammankopplingar och deras bredare implikationer belyser vikten av omfattande bedömningar när man integrerar biogassystem utöver deras konventionella tillämpningar.

Place, publisher, year, edition, pages
Gävle: Gävle University Press, 2023. p. 70
Series
Doctoral thesis ; 38
Keywords
Solid-state anaerobic digestion, methane yield, digestate, systems analysis, modelling, life cycle assessment, Torrötning, metanutbyte, biogödsel, systemanalys, modellering, livscykelanalys
National Category
Other Environmental Engineering Environmental Management
Identifiers
urn:nbn:se:hig:diva-43263 (URN)978-91-89593-15-2 (ISBN)978-91-89593-16-9 (ISBN)
Public defence
2024-01-18, 12:108, Gävle, 09:00 (English)
Opponent
Supervisors
Available from: 2023-12-20 Created: 2023-11-14 Last updated: 2023-12-20

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Carlos-Pinedo, SandraWang, ZhaoEriksson, Ola

Search in DiVA

By author/editor
Carlos-Pinedo, SandraWang, ZhaoEriksson, Ola
By organisation
Environmental Science
In the same journal
Biomass and Bioenergy
Other Environmental Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 355 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf