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Improvement of Solid-State Biogas Production from Wood by Concentrated Phosphoric Acid Pretreatment
University of Borås, Faculty of Textiles, Engineering and Business. (Swedish Centre of Resource Recovery)ORCID iD: 0000-002-1456-1840
2016 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 11, no 2, 3230-3243 p.Article in journal (Refereed) Published
Abstract [en]

Cellulose Solvent-And organic Solvent-Based lignocellulose fractionation (COSLIF) has been repeatedly shown to be a Cost-Effective and promising process to modify the structure of different lignocelluloses. It has been repeatedly reported to improve enzymatic hydrolysis and ethanol production from different lignocelluloses. In this study, COSLIF was used to improve biomethane production from pine (softwood), poplar (soft hardwood), and berry (hard hardwood) via solid state anaerobic digestion (SSAD). Feed to inoculum (F/I) ratio, which plays a major role in SSAD, was set to 3, 4, and 5. After the pretreatment, 39, 33, and 24% higher methane yield from pine was achieved for F/I ratios of 3, 4, and 5, respectively. However, the methane yield from the hardwoods was not improved by the pretreatment, which was related to overloading of the digester. Compositional analysis showed considerable reduction in hemicellulose and lignin content by the pretreatment. Structural changes in the woods, before and after the pretreatment, were examined by X-Ray diffractometer and scanning electron microscopy. The results showed that the crystallinity of cellulose was decreased and accessible surface area was drastically increased by the pretreatment.

Place, publisher, year, edition, pages
2016. Vol. 11, no 2, 3230-3243 p.
Keyword [en]
Biogas, Concentrated phosphoric acid pretreatment, Hardwood, Softwood, Solid-State anaerobic digestion
National Category
Environmental Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-11796DOI: 10.15376/biores.11.2.3230-3243ISI: 000375786700022ScopusID: 84965125869OAI: oai:DiVA.org:hb-11796DiVA: diva2:1064962
Available from: 2017-01-13 Created: 2017-01-12 Last updated: 2017-01-16Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
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