Switching exogenous to endogenous electron donor-driven denitrification via anaerobic/aerobic/anoxic strategy: Key drivers, enhanced performance, and microbial community dynamics

Key Points

• Denitrification performance was significantly enhanced through switching to endogenous electron donors, optimizing microbial community functions.
• Key metrics revealed a notable increase in nitrogen removal rates under anoxic conditions, achieving 85% efficiency.
• Analysis of microbial community dynamics across different strategies helped identify specific species linked to improved denitrification outcomes.
• Highlights the importance of electron donor strategies in microbial management for wastewater treatment, urging further exploration.