Anaerobic digestion of pre-fermented potato peel wastes for methane production. (December 2015)

• Record Type: Journal Article
• Authors: Liang, Shaobo; McDonald, Armando G.
• Is Part Of: Waste management. Volume 46(2015)
• Page Start: 197
• Page End: 200
• Publication Date: 2015-12
• Subjects: Agricultural waste -- Methane -- Fermentation residue -- Potato peel waste -- Anaerobic digestion; Hazardous wastes -- Periodicals; Refuse and refuse disposal -- Periodicals; 363.728
• DOI: 10.1016/j.wasman.2015.09.029
• Languages: English
• ISSNs: 0956-053X

Abstract

Highlights: Anaerobic digestion of potato peel waste fermentation residue was conducted. About 60–70% methane content was obtained in the biogas. Methane production from PPW-FR was higher than that from PPW. 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 VSfed, followed by 239 L/kg VSfed 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.