MFC-Anaerobic Digestor (AD) hybrid system was reported to
operate effectively together. MFC was more susceptible to high
acetic acid load than AD. Low pH had a relatively delayed effect on
the MFC compared to AD, allowing the hybrid system, to have a
more stable energy output. At low pH, when operating as hybrid,
the AD compartment was able to recover pH to normal levels
when the MFC component failed. These results demonstrate that
there are synergies that can be gained from this hybrid system
[53]. The schematic diagram of an anaerobic digester (AD) with
MFC hybrid system is as shown in Fig. 5c.