Moving Bed Biofilm Reactor (MBBR) / Integrated Fixed Film Activated Sludge (IFAS)

Both MBBR and IFAS wastewater treatment processes are offered by ECOfluid. These processes utilize media to provide a large surface area for the biomass to attach to and grow in a protected environment. This fixed, dense biomass is very adept at “absorbing” shock loadings of BOD, TKN and flow, thereby improving the process stability. Various configurations can be assembled to meet the design objectives, including enhanced nitrification and denitrification.

MBBR utilizes free moving, plastic media as biomass carriers that are maintained in suspension by aeration. The single pass, attached growth process with no sludge recycle, is robust and simple to operate with minimal process complexity. Its versatility allows it to be considered in a variety of applications.

IFAS utilizes either fixed or suspended media with the sludge recycle integrated within the activated sludge process. This hybrid suspended growth / attached growth process enables the bioreactor to increase treatment capacity and improve plant performance.

Both MBBR and IFAS can very beneficially employ the ECOfluid USBF (Upflow Sludge Blanket Filtration) for the secondary effluent clarification process. Separation efficiency of the USBF fluidized bed filter / clarifier is enhanced by the superior floc structure and settleability of MBBR or IFAS biomass, allowing for increased hydraulic loading and flexibility.

MBBR / IFAS / USBF Benefits

  • shock loads (BOD, TKN, flow) “absorbing” capability
  • improved process stability
  • increased treatment capacity
  • compact footprint
  • fluidized bed filtration efficiency
  • simple operation
  • cost effective