Microbial fuel cell (MFC) on the other hand is another system
that involved both chemical and biological treatment processes.
Microbial fuel cells (MFCs) have gained a lot of attention in recent
years as a mode of converting organic waste including lowstrength
wastewaters and lignocellulosic biomass into electricity.
Much research papers have been published on MFC stand-alone
system but none has actually come to discuss on the effort of
integrating MFC with other unit operations and processes. Table 4
shows a comprehensive list of MFC hybrid system with chemical
and biological unit processes for wastewater treatment and bioenergy
generation that has been researched this far. One of the
most common units is power density, which is either represented
as the power generated per unit area of the anode or cathode
surface area (mW/m2) or current generated per unit volume of cell
(mW/m3).