Fixed Bed Reactor

Fixed bed, fixed film or attached growth reactors are biological wastewater treatment processes that employ an inert medium such as rock, plastic, wood, or other natural or synthetic solid material, that will support attached growth of active biomass responsible for degradation on its surface and within its porous structure reactors. Typical aerobic fixed bed reactors are trickling filters and biological disks or moving bed reactor (of type Kalness or Biostyr). Typical anaerobic fixed film reactors are anaerobic upflow filters.