Is  what the difference between conventional wastewater treatment?

　In conventional wastewater treatment process such as activated sludge process, the disposal of the excess grown microbe is one of the big problem.
  On the other hand, in MFC system, most part of the orgenic carbon is used for power generation and the growth of microbe is little.
  Moreover, the power for aeration can also be saved.
  MFC is attracting worldwide attention as a tecnology recycling energy from wastewater.