In contrast, Scenario-II (MFC) acts as a single-pot system to treat WW, recovering energy and nutrients simultaneously. Because of this multimodal approach, the energy consumption on the overall treatment and recovery could be reduced substantially, which reduced the overall GWP as well. The GWP of recovered fertilizer in Scenario II corresponds to -538 gCO2 Eq./m 3 , while the MFC part consumes a GWP of 304 gCO2 Eq./m 3 , thus, the net GWP of MFC is -234 g CO2 Eq./m 3 (Figure ). Though MFC has a negative GWP, the key issue was towards the scaling up of this technology. MFC lacks proof of concept in scale, wherein till date 10 m 3 /d operating capacity was reported to be the highest capacity .