Cited by 23Anaerobic Digestion and Biogas ProductionMicrobial Fuel Cells and BioremediationLandfill Environmental Impact Studies

Contribution of electrodes and electric current to process stability and methane production during the electro-fermentation of food waste

Liu, Sai, Deng, Zhou, Li, Huan, Feng, Kai·2019·Bioresource Technology

Abstract

Electro-fermentation is used as an alternative to conventional anaerobic digestion to enhance system stability and methane production from food waste. In particular, the contributions of electrode materials and an electric current are analyzed separately. The results showed that the introduction of electrodes (conductive carbon brushes without applied voltage) rapidly decreased the average concentration of volatile fatty acids (VFAs) from 6617 mg/L to 174 mg/L quickly, accelerated stabilization of digestion system, and improved methane production by 13.5%. When low voltage was supplied, the VFAs concentration declined to 129 mg/L, and methane production increased by 26.3%. Electric current stimulated the growth of hydrogenotrophic methanogens, but acetotrophic Methanosaeta still made up 27.6-61.9% of archaeal community. Geobacter occurred at the cathode with a low abundance. The energy contained in incremental methane was 4.55 times the consumption of electric energy, indicating the enhanced methanogenesis was mainly attributed to the improved digestion environment.

Integrity signals

Registry

Crossref · 10.1016/j.biortech.2019.121536

Cites

49 of 49 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • About 26.3% improvement in methane production was achieved by limiting the amount of volatile fatty acids to 129 mg/L from electro-fermentation of food waste.

    “About 26.3% improvement in the methane production was achieved by limiting the amount of volatile fatty acids to 129 mg/L from the electro-fermentation of food waste [52].”

    From Food Waste Biorefinery: Pathway towards Circular Bioeconomy (2021) · cites this paper as [52]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, S., Deng, Z., Li, H., & Feng, K.
Affiliations
Tsinghua Shenzhen International Graduate School (CN)
Corresponding author
Li, Huan
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2019-09
Volume
288
Pages
121536
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2945678203
Cited by
23
References
49
Citations by year
2026: 2 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 4 · 2020: 5 · 2019: 1
FWCI
2.18
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Development and Reform Commission of Shenzhen Municipality
  • Major Science and Technology Program for Water Pollution Control and Treatment
  • Science and Technology Planning Project of Shenzhen Municipality
Topics
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Landfill Environmental Impact Studies
Keywords
electro-fermentation, food waste, methane production, process stability, electrode materials, electric current, volatile fatty acids, hydrogenotrophic methanogens, Methanosaeta, Geobacter, cathode, energy efficiency, anaerobic digestion
MeSH terms
Anaerobiosis, Electrodes, Fermentation, Methane, Bioreactors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review