title: Effects of steam explosion and co-digestion in the methane production from Salix by mesophilic batch assays.
abstract: Salix that was steam exploded at different conditions of temperature and time was anaerobically digested in a series of batch tests. Steam explosion proved to be favorable to increase the methane yields up to 50%, with best results obtained for temperatures starting at 210 °C. Batch studies for mixtures of cow manure and steam exploded Salix were performed, with C/N ratios varying from 31 to 56, related to volatile solids (VS) contents from 20 up to 80% of each of the substrates. Methane yields reached 230 mL CH(4)/g VS for the mixtures containing 30% and 40% VS of Salix over the total mixture's VS content (35 and 39 C/N ratio, respectively). A fraction up to 40% in VS from pre-treated Salix provided good methane yields with a faster digestion process.
authors: Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway. maria.estevez@umb.no
authors: Maria M
authors: MM
authors: Estevez
authors: Roar
authors: R
authors: Linjordet
authors: John
authors: J
authors: Morken
mesh_terms: D000818:Animals; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D002417:Cattle; D008372:Manure / Q000382:microbiology*; D008697:Methane / Q000378:metabolism*; D032108:Salix / Q000737:chemistry* / Q000378:metabolism*; D013227:Steam
chemical_list: D008372:Manure; D013227:Steam; D008697:Methane