Related Experiment Video
Updated: Feb 18, 2026

Self-standing Electrochemical Set-up to Enrich Anode-respiring Bacteria On-site
Published on: July 24, 2018
Performance and microbial communities in a combined bioelectrochemical and sulfur autotrophic denitrification system
Dan Chen1, Hongyu Wang1, Kai Yang2
1State Key Lab of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, 150090, China; School of Civil Engineering, Wuhan University, Wuhan, 430072, China.
Abstract:
Combined bioelectrochemical and sulfur autotrophic denitrification (CBSAD) system had proven to be feasible for nitrate removal at low temperature. This system obtained excellent denitrification efficiency 96.55% at 10 ± 2 °C long term operation. Nitrate removal efficiency presented increased tendency with applied current increased from 50 to 200 mA and then decreased when the applied current was further increased to 300 mA. The CBSAD system owned the most abundant and rich communities at current 200 mA, and the community structures of the microbial samples at different current conditions were clearly different from each other. Phyla Firmicutes, Proteobacteria and classes Epsilonproteobacteria, Gammaproteobacteria, Betaproteobacteria, Clostridia dominated in all the communities in the system. The largest genus at current 50 mA was Arcobacter, whereas Pseudomonas was the most dominant genus at current 100-300 mA condition, suggesting that high current changed the bacterial structure in this CBSAD reactor.
More Related Videos
Related Concept Videos
Metabolism of Chemolithotrophs
Microbial Nutrition
Environmental Applications of Microorganisms
Anoxygenic Photosynthesis
Carbon-dioxide Fixation
Anoxygenic Phototrophic Bacteria

