Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment
Joint Authors
Schmidt, Jens Ejbye
Leipold, Frank
Schultz-Jensen, Nadja
Heiske, Stefan
Source
Journal of Atomic and Molecular Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Plasma-assisted pretreatment (PAP) of lignocellulosic biomass has been shown to be an efficient method to decompose lignin and consequently facilitate microbial access to cellulose and hemicellulose.
In the present study, PAP was tested for its suitability to enhance bioconversion of wheat straw to methane.
In thermophilic batch experiments, methane yields of up to 366 mL/g volatile solids (VSs) were achieved, accounting for a yield increase of 45%.
Common lignin-derived inhibitors like 5-hydroxymethylfurfural (5-HMF) and furfural were not detected after PAP, but toxicity test resulted in lower methane yields at higher substrate concentrations, indicating the presence of other unidentified inhibitors.
However, in a continuous lab-scale biogas reactor experiment, stable codigestion of cattle manure with 20% PAP wheat straw was demonstrated, while no signs of adverse effects on the anaerobic digestion process were observed.
After the introduction of the pretreated wheat straw to the reactor, volatile fatty acid concentrations remained low and stable, while gas production increased.
In co-digestion, the PAP wheat straw was converted at an average yield of 343 mL CH4/gVS.
American Psychological Association (APA)
Heiske, Stefan& Schultz-Jensen, Nadja& Leipold, Frank& Schmidt, Jens Ejbye. 2013. Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment. Journal of Atomic and Molecular Physics،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-498384
Modern Language Association (MLA)
Heiske, Stefan…[et al.]. Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment. Journal of Atomic and Molecular Physics No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-498384
American Medical Association (AMA)
Heiske, Stefan& Schultz-Jensen, Nadja& Leipold, Frank& Schmidt, Jens Ejbye. Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment. Journal of Atomic and Molecular Physics. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-498384
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498384