Fig. 9From: A novel fragmented anode biofilm microbial fuel cell (FAB–MFC) integrated system for domestic wastewater treatment and bioelectricity generationThe proposed conceptual scheme of anode biofilm growth on support media (MEJ-dish) against the hypothetical maximum (max.) surface area and biofilm thickness. The anode biofilm thickness was proposed without assuming extended growth. The numbers in a box (1–13) indicate the MFC substrate and electron flow (Additional file 1: Fig. S1). The MEJ-dish supports to form thick (FAB) anode biofilm (No. 3)Back to article page