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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. (2020). Influences of Temperature and Substrate Particle Content on Granular Sludge Bed Anaerobic Digestion. Applied Sciences, 10(1).en_US
dc.description.abstractInfluences of temperature (25–35 °C) and substrate particulate content (3.0–9.4 g total suspended solids (TSS)/L) on granular sludge bed anaerobic digestion (AD) were analyzed in lab-scale reactors using manure as a substrate and through modeling. Two particle levels were tested using raw (RF) and centrifuged (CF) swine manure slurries, fed into a 1.3-L lab-scale up-flow anaerobic sludge bed reactor (UASB) at temperatures of 25 °C and 35 °C. Biogas production increased with temperature in both high- and low-particle-content substrates; however, the temperature effect was stronger on high-particle-content substrate. RF and CF produced a comparable amount of biogas at 25 °C, suggesting that biogas at this temperature came mainly from the digestion of small particles and soluble components present in similar quantities in both substrates. At 35 °C, RF showed significantly higher biogas production than CF, which was attributed to increased (temperature-dependent) disintegration of larger solid particulates. Anaerobic Digestion Model No.1 (ADM1) based modeling was carried out by separating particulates into fast and slow disintegrating fractions and introducing temperature-dependent disintegration constants. Simulations gave a better fit for the experimental data than the conventional ADM1 model.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleInfluences of temperature and substrate particle content on granular sludge bed anaerobic digestionen_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