E.coli with surface-displayed Lpp-OmpA-MO2.1 enabling enhanced NO3--N interaction in low C/N wastewater: Performance, anion competition and molecular docking analysis

Key Points

• Enhanced nitrate interaction was observed in low carbon/nitrogen environments, improving nutrient management.
• Molecular docking analysis supported the role of Lpp-OmpA-MO2.1 in facilitating nitrate binding.
• Assessment of anion competition revealed significant effects on overall nitrate uptake performance.
• These findings highlight the potential for engineered E. coli strains in wastewater treatment processes.