Reference : Digestion of grass silage in a semi-continuously fed reactor at increasing loading ra...
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Life sciences : Biotechnology
http://hdl.handle.net/10993/19182
Digestion of grass silage in a semi-continuously fed reactor at increasing loading rates - Process stability and kinetics evaluatio
English
Benito Martin, Patricia mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Greger, Manfred mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Schlienz, Markus mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
1-Dec-2014
Venice 2014 5th International Symposium on Energy from Biomass and Waste Proceedings
CISA
Yes
International
978-88-6265-085-4
Padova
Italy
5th International Symposium on Energy from Biomass and Waste
from 17-11-2014 to 20-11-2014
International Waste Working Group
Venice
Italy
[en] mono-digestion ; grass silage ; organic loading rate
[en] Grass is a popular substrate in agricultural biogas plants in Central and Northern Europe. There is currently limited information about the impact of the organic loading rates (OLR) on methane yields, process stability and kinetics for continuous systems digesting grass silage. Anaerobic mono-digestion of grass silage was evaluated in semi-continuously fed laboratory continuously stirred tank reactors (CSTRs) at increasing loading rates between 1.9 and 4.7gVS/l/d. Results show that digestion of grass silage in one-stage CSTR is feasible and do not present any loading-induced inhibition for the tested OLR range. While the volumetric methane production experienced an increase of 61%, the methane yield only decreased by 13% for the highest OLR. On the other hand, the estimated first-order hydrolysis constant decreased by 24% when increasing the loading from 1.9 to 4.7gVS/l/d, which related with an accumulation of the organic material in the reactor. It was also found that the composition of the grass silage affected the digester performance significantly.
http://hdl.handle.net/10993/19182

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
154_Benito.pdfAuthor postprint458.02 kBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.