Oxygen-to-ammonium-nitrogen ratio as an indicator for oxygen supply management in microoxic bioanodic ammonium oxidation.

Microbial electrolysis cells (MECs) have been proven effective for oxidizing ammonium (NH), where the anode acts as an electron acceptor, reducing the energy input by substituting oxygen (O). However, O has been proved to be essential for achieving high removal rates MECs. Thus, precise control of oxygen supply is crucial for optimizing treatment performance and minimizing energy consumption.