A novel microbial fuel cell (MFC) was developed to enhance simultaneous nitrification and denitrification (SND) by employing electrons from the anode. The cathode chamber of the reactor consisted of a membrane aerated biofilm reactor (MABR) which was made of an electroconductivity aerated membrane. The maximum power density of 4.20 +/- 0.12 W m(-3) was obtained at a current density of 4.10 +/- 0.11 A m(-2) (external resistance = 10 Omega). Compared with an open-circuit system, the removal rates of NI4+-N and TN were improved by 9.48 +/- 0.33% and 19.80 +/- 0.84%, respectively, which could be ascribed to the electrochemical denitrification. The anode (chemical oxygen demand, COD) and cathode (NO3-) chambers reached the maximum coulombic efficiencies (CEs) of 40.67 +/- 1.05% and 42.84 +/- 1.14%, respectively. It suggested that the electroconductivity MABR has some advantages in controlling aeration intensity, thus improving SND and CEs. Overall, EAM-MFC could successfully generate electricity from wastewater whilst showing high capacity for removing nitrogen at a low COD/N ratio of 2.8 +/- 0.07 g COD g(-1) N. (C) 2016 Elsevier B.V. All rights reserved.