Performance analysis of a combined system of membrane bioreactor and worm reactor: Wastewater treatment, sludge reduction and membrane fouling

► A combined system of MBR and worm reactor was tested in a continuous experiment. ► COD can be removed more thoroughly in the combined system. ► A significant enhancement of sludge reduction was observed in the combined system. ► Membrane fouling mitigation was observed in the combined system induced by sludge modification.