Improving electricity generation and substrate removal of a MFC-SBR system through optimization of COD loading distribution

- The system achieved a maximum power density of 4.5 W/m3 and COD removal of 95.1%.
- Power generation was affected by COD loading distribution between MFC and SBR.
- Reducing COD shunted to SBR favored thriving of the cathode-respiration aerobes.
- Prolonging the HRT led to improved electricity generation and COD removal.