Microbial Electrolysis Facilitates Efficient Coal Bioconversion and CO2-to-Methane Production
Junyu Wang, Bingjun Liu
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90% confidenceAdvanced MEC research focusing on electrode, performance. Methanogenic bacteria can convert exogenous CO₂ into biomethane, aiding carbon sequestration. Biological methods enhancing coal and CO₂ co-tra...
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Abstract
Methanogenic bacteria can convert exogenous CO₂ into biomethane, aiding carbon sequestration. Biological methods enhancing coal and CO₂ co-transformation during coalbed methane production are gaining attention, with microbial electrolysis cell (MEC) technology showing promise in improving anaerobic digestion (AD). This study compared AD and MEC-AD systems for biomethane co-production from coal and CO₂. The MEC-AD system produced 50.96 ml of methane, a 135.49% increase over AD alone (21.64 ml), and reduced CO₂ levels by 51.51% more than AD. 16S rRNA analysis showed MEC technology improved hydrolysis and interspecies electron transfer during coal digestion, boosting biomethane production. These findings highlight MEC's potential to enhance anaerobic digestion efficiency and support low-carbon or carbon-negative technologies for effective carbon sequestration.
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Identifiers
- Journal
- International Journal of Biology and Life Sciences
- Year
- 2025