Pulse electromagnetic fields enhance extracellular electron transfer in magnetic bioelectrochemical systems
Huihui Zhou, Bing-Feng Liu, Qisong Wang, Jianmin Sun +4
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Abstract
The pulse electromagnetic field (PEMF) showed significant influence on sta te-of-the-art pulse magnetic bioelectrochemical systems (PEMF-MBES) in terms of current generation and microbial ecology. EET was instantaneously and reversibly enhanced in MBESs inoculated with either mixed-culture or Geobacter . PEMF notably decreased bacterial and archaeal diversities of the anode biofilms in MMFCs via changing species evenness rather than species richness, and facilitated specific enrichment of exoelectrogenic bacteria ( Geobacter ) on the anode surface. This study demonstrates a new magnetic approach for understanding and facilitating microbial electrochemical activities.
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Identifiers
- PubMed
- 29075322
- Journal
- Biotechnology for Biofuels
- Year
- 2017