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dc.contributor.authorTassew, Fasil Ayelegn
dc.contributor.authorBergland, Wenche Hennie
dc.contributor.authorDinamarca, Carlos
dc.contributor.authorBakke, Rune
dc.identifier.citationTassew, F. A., Bergland, W. H., Dinamarca, C., & Bakke, R. (2019). Effect of Particulate Disintegration on Biomethane Potential of Particle-Rich Substrates in Batch Anaerobic Reactor. Applied Sciences, 9(14), 2880.en_US
dc.description.abstractAn investigation of particle disintegration was carried out using batch anaerobic reactors and a particle-rich substrate from pig manure supernatant. Two types of samples were applied, one high in suspended particles (raw feed) and another low in suspended particle content (centrifuged feed). Both feeds were digested with and without cellulase enzyme addition to obtain a better understanding of particle degradation mechanisms. An automatic methane potential test system (AMPTS) was used to carry out batch reactions at 35 °C. The raw feed with high-suspended solids had higher biomethane potential than the centrifuged feed but the conversion rate and methane yield was lower. The addition of cellulase increased biomethane production rates in both high- and low-particle content samples enhancing yield by 54% and 40%, respectively and converting 69% and 87% of feed chemical oxygen demand (COD), respectively. This implies that the feed particles have high contents of cellulose. This is also the case for the smaller particles remaining after centrifugation. Comparisons of anaerobic digestion model no. 1 (ADM1) simulations with experimental data reveal that classifying substrate particles into a fast and a slow degrading fraction with separate disintegration kinetics fit the experimental data better than lumping all particles into one parameter.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleEffect of Particulate Disintegration on Biomethane Potential of Particle-Rich Substrates in Batch Anaerobic Reactoren_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2019 by the authorsen_US
dc.source.journalApplied Sciencesen_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal