Enhanced methane generation and biodegradation efficiencies of goose manure by thermal-sonication pretreatment and organic loading management in CSTR

Muhammad Hassan, Chao Zhao and Weimin Ding

Energy, 2020, vol. 198, issue C

Abstract: The current research investigated the effects of thermal-sonication pretreatment on the anaerobic digestion of goose manure. The CSTRs were run at three different organic loading rates: 1.4 g-VS/L.day, 2.9 g-VS/L.day and 4.4 g-VS/L.day, consequently termed as Phase-1, Phase-2 and Phase-3, respectively, and five different sonication pretreatments levels: (25 min, 45 min, 60 min, 90 min, and 120 min) at 28 KHz that were employed to optimize the anaerobic digestion process for goose manure to enhance methane production. The second phase was proved to be the optimum phase with maximum methane enhancement capability, CODs stabilization rate, and VS removal efficiency. Owing to thermal-sonication and organic loading management, methane enhancement up to 40.76% was evaluated for reactor C during the second phase of experiment. Furthermore, the biochemistry of the anaerobic digestion process was deeply interpreted at each three-day interval and the techno-economic analysis was performed to evaluate the pretreatment feasibility.

Keywords: Goose manure; CSTR; Organic loading management; Methane enhancement; Techno-economic analysis (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:198:y:2020:i:c:s0360544220304771

DOI: 10.1016/j.energy.2020.117370

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