Strategic enrichment of ammonia-oxidizing archaea biofilms coupled with process optimization for mitigating N2O emissions in wastewater treatment system

Key Points

• N2O emissions decreased significantly with optimized biofilms, showcasing effective nitrogen management.
• A reduction of up to 30% in N2O emissions was noted during the biofilm enhancement phase.
• Assessment using a controlled bioreactor demonstrated enhanced ammonia-oxidizing archaea activity contributing to reduced emissions.
• Optimization strategies highlight the potential for more sustainable wastewater treatment processes involving biofilms.