Cited by 91Microbial Fuel Cells and BioremediationAnaerobic Digestion and Biogas ProductionLandfill Environmental Impact Studies

Enhancement of hydrogen production and energy recovery through electro-fermentation from the dark fermentation effluent of food waste

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Jia, Xuan, Li, Mingxiao, Wang, Yong, Wu, Yanan, Zhu, Lin, Wang, Xue, Zhao, Yujiao·2020·Environmental Science and Ecotechnology

Abstract

To enhance hydrogen production efficiency and energy recovery, a sequential dark fermentation and microbial electrochemical cell (MEC) process was evaluated for hydrogen production from food waste. The hydrogen production, electrochemical performance and microbial community dynamics were investigated during startup of the MEC that was inoculated with different sludges. Results suggest that biogas production rates and hydrogen proportions were 0.83 ​L/L d and 92.58%, respectively, using anaerobic digested sludge, which is higher than that of the anaerobic granular sludge (0.55 ​L/L d and 86.21%). The microbial community were predominated by bacterial genus Acetobacterium , Geobacter , Desulfovibrio, and archaeal genus Methanobrevibacter in electrode biofilms and the community structure was relatively stable both in anode and cathode. The sequential system obtained a 53.8% energy recovery rate and enhanced soluble chemical oxygen demand (sCOD) removal rate of 44.3%. This research demonstrated an important approach to utilize dark fermentation effluent to maximize the conversion of fermentation byproducts into hydrogen.

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  • Hydrogen recovery was improved by the sequential process of electro-fermentation of food waste from the effluents of dark fermentation.

    “Hydrogen recovery was also improved by the sequential process of electro-fermentation of food waste from the effluents of dark fermentation [53].”

    From Food Waste Biorefinery: Pathway towards Circular Bioeconomy (2021) · cites this paper as [53]

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Authors
Jia, X., Li, M., Wang, Y., Wu, Y., Zhu, L., Wang, X., & Zhao, Y.
Affiliations
  • Beijing Technology and Business University (CN)
  • Chinese Research Academy of Environmental Sciences (CN)
Corresponding author
  • Jia, Xuan
  • Li, Mingxiao
Venue
Environmental Science and Ecotechnology
Publisher
Elsevier BV
Published
2020-01
Volume
1
Pages
100006
ISSN
  • 2096-9643 (ISSN-L)
  • 2666-4984
OpenAlex
W2999448967
Cited by
91
References
50
Citations by year
2026: 15 · 2025: 19 · 2024: 13 · 2023: 11 · 2022: 13 · 2021: 8 · 2020: 12
FWCI
3.95
Type
journal article
Language
en
Update notices
erratum (2020-10-01)
Open access
Locations
  • Environmental Science and Ecotechnology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (21406213, 51408572)
Topics
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Landfill Environmental Impact Studies
Keywords
hydrogen production, dark fermentation, microbial electrochemical cells, food waste, dark fermentation effluent, energy recovery, anaerobic digested sludge, anaerobic granular sludge, microbial community dynamics, Geobacter, Methanobrevibacter, soluble COD removal, biogas

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