Microbe sample from microbial electrolysis cell system
Exploring the mechanisms of nitrate reduction in electrochemical biofilms will enhance our understanding of microbial synergistic processes for environmental remediation and boost the development of bioelectrochemical technologies. Diverse electroactive microorganisms, such as Geobacter spp. and Petrimonas spp., are enriched in biofilms under periodic polarity reversal and play key roles in extracellular electron transfer. These microbial communities demonstrate distinct metabolic pathways for nitrogen conversion. The findings from this study will aid in elucidating the interactions between microorganisms in complex biofilm environments and guide the optimization of electrochemical systems for improved performance in wastewater treatment and resource recovery.