title: Anaerobic digestion of pre-fermented potato peel wastes for methane production.
abstract: This study investigated the feasibility of anaerobic digestion (AD) of potato peel waste (PPW) and its lactic acid fermentation residue (PPW-FR) for methane (CH4) production. The experimental results showed that about 60-70% CH4 content was obtained. The digester using PPW-FR as feedstock exhibited better performance and produced a highest cumulative CH4 production of 273 L/kg VS fed, followed by 239 L/kg VS fed using PPW under the same conditions. However, with increasing solid loadings of PPW-FR feedstock from 6.4% to 9.1%, the CH4 production was inhibited. The generation, accumulation, and degradation of volatile fatty acids (VFAs) in digesters were also investigated in this research.
authors.affiliation: Renewable Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, 875 Perimeter Drive MS1132, Moscow, ID 83844, United States.
authors.forename: Shaobo
authors.initials: S
authors.lastname: Liang
authors.affiliation: Renewable Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, 875 Perimeter Drive MS1132, Moscow, ID 83844, United States. Electronic address: armandm@uidaho.edu.
authors.forename: Armando G
authors.initials: AG
authors.lastname: McDonald
mesh_terms: D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D056804:Biofuels / Q000032:analysis*; D005232:Fatty Acids, Volatile / Q000032:analysis / Q000378:metabolism; D005285:Fermentation; D005735:Garbage; D019344:Lactic Acid / Q000378:metabolism*; D008697:Methane / Q000032:analysis* / Q000378:metabolism; D011198:Solanum tuberosum / Q000737:chemistry*; D018505:Waste Management
chemical_list: D056804:Biofuels; D005232:Fatty Acids, Volatile; D019344:Lactic Acid; D008697:Methane
keywords: Agricultural waste; Anaerobic digestion; Fermentation residue; Methane; Potato peel waste