Enhancement in current density and energy conversion efficiency of 3-dimensional MFC anodes using pre-enriched consortium and continuous supply of electron donors

► Performance of three-dimensional, flow-through MFC anode. ► Maximum current density and energy conversion efficiency of 15.1 A/m2 and 54%. ► Coulombic efficiency of 90% obtained for fermentable substrates: glucose + lactate. ► Consortium contained Burkholderiales and Rhodocyclales as dominant members.