摘要
•Novel bipolar bioelectrodialysis for ammonia and sulfate recovery from wastes.•Hydrogen production and wastewater treatment were accomplished along with recovery.•Cathodic gas recirculation increased the nitrogen and sulfate fluxes by 2.3 times.•The system was affected by the voltage, other ions, NH4 and SO42− concentrations.•Net energy was produced at all the applied voltages between 0.8 and 1.4 V.