Potentiostatic vs galvanostatic operation of a Microbial Electrolysis Cell for ammonium recovery and biogas upgrading
The experimental study reports the performance of a three-chamber Microbial Electrolysis Cell equipped with a two-side cathode, which combines the COD removal in the intermediate anodic chamber, the CO2 removal from a gas mixture in the two-side cathode and the recovery of ammonium as a concentrate solution. The MEC anode was fed by a synthetic dark fermentation effluent with a nitrogen load rate of 1.7 g N/Ld while the two-side cathode was operated with a gas mixture containing CO2.