title: Effect of liquid hot water pre-treatment on sugarcane press mud methane yield.
abstract: Sugarcane press mud was pretreated by liquid hot water (LHW) at different temperatures (140-210 °C) and pre-treatment times (5-20 min) in order to assess the effects on the chemical oxygen demand (COD) solubilisation, inhibitors formation and methane yield. The experimental results showed that a high degree of biomass solubilisation was possible using LHW. Higher methane yields were obtained at lower severities (log(Ro) = 2.17-2.77) with (i) mild temperatures (140-150 °C) and long contact times (12.5 min, 20 min) or (ii) mild temperatures (175 °C) with short contact time (2 min). The highest increase in methane yield (up to 63%) compared to the untreated press mud was found at 150 °C for 20 min. At temperatures of 200 °C and 210 °C, low methane efficiency was attributed to the possible formation of refractory compounds through the Maillard reaction.
authors: Universidad de Sancti Spíritus "José Martí Pérez" (UNISS), Centro de Energía y Procesos Industriales (CEEPI), Avenida de los Mártires 360, CP 60100 Sancti Spíritus, Cuba. Electronic address: lisbet@uniss.edu.cu.
authors: Lisbet Mailin
authors: LM
authors: López González
authors: Instituto Superior Politécnico "José Antonio Echeverría" (Cujae), Centro de Estudio de Ingeniería de Procesos (CIPRO), Calle 114 No. 11901 e/Rotonda y Ciclovía, Marianao CP 19390, La Habana, Cuba.
authors: Ileana
authors: I
authors: Pereda Reyes
authors: Ghent University, Department of Sustainable Organic Chemistry and Technology, Coupure Links, 653, 9000 Ghent, Belgium.
authors: Jo
authors: J
authors: Dewulf
authors: Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469 Potsdam, Germany.
authors: Jörn
authors: J
authors: Budde
authors: Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Max-Eyth-Allee 100, 14469 Potsdam, Germany.
authors: Monika
authors: M
authors: Heiermann
authors: Laboratory of Industrial Water and Eco-technology (LIWET), Faculty of Bioscience Engineering, Ghent University Campus Kortrijk, Graaf Karel de Goedelaan 5, B-8500 Kortrijk, Belgium.
authors: Han
authors: H
authors: Vervaeren
mesh_terms: D057919:Biological Oxygen Demand Analysis; D004187:Disaccharides / Q000032:analysis; D005663:Furans / Q000032:analysis; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D007700:Kinetics; D008697:Methane / Q000096:biosynthesis*; D009005:Monosaccharides / Q000032:analysis; D031786:Saccharum / Q000737:chemistry* / Q000187:drug effects; D012995:Solubility; D014866:Waste Products; D014867:Water / Q000494:pharmacology*
chemical_list: D004187:Disaccharides; D005663:Furans; D009005:Monosaccharides; D014866:Waste Products; D014867:Water; D008697:Methane
keywords: Anaerobic digestion; Filter cake; Inhibitors; LHW pre-treatment; Press mud