An integrated engineering system for maximizing bioenergy production from food waste

Yingqun Ma, Weiwei Cai and Yu Liu

Applied Energy, 2017, vol. 206, issue C, 83-89

Abstract: In this study, an integrated engineering system was developed for bioenergy production from food waste pretreated with a cost-effective and highly active enzyme mixture, namely fungal mash which was also in-situ produced from food waste. Under the optimized conditions, 141.5g/L of glucose was obtained with 67.5% of total solid reduction after hydrolysis of food waste by fungal mash, while 71.8g/L of bioethanol was produced from subsequent glucose fermentation. The remaining hydrolysis residue was further anaerobically digested for biomethane production with 22.8% of total solid reduction. As the result, about 90% of total solid reduction of food waste was achieved in the integrated engineering system with the outputs of bio-renewable energy in the forms of bioethanol and biomethane. The cost-benefit analysis clearly suggests that the bioenergy production from food waste in the proposed integrated engineering system is technically feasible and economically viable.

Keywords: Food waste; Integrated engineering system; Fungal mash; Bioethanol; Biomethane (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (13)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:206:y:2017:i:c:p:83-89

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DOI: 10.1016/j.apenergy.2017.08.190

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