Moving Bed BioReactor


US Patent #D827765

PEWE MBBR — Aerobic Treatment System For Soluble Organics

The ASO® Bio-carrier Moving Bed BioReactor (MBBR) is a standalone wastewater treatment system used for the reduction of soluble organics and nutrients. The key to the system is the plastic media which provides a suitable home for biological colonies of bacteria and protozoa to grow and flourish. The ASO® Bio-carrier moving bed biofilm reactor technology is a straightforward flow through design where no sludge recycling or backwashing is necessary. The media are contained within the vessel(s) and mixing energy is applied via coarse bubble aeration. If de-nitrification is needed, mechanical agitation will be applied in place of aeration. The MBBR is a flexible biological platform with easy future expansion—just add media.

Operational control parameters are relatively simple. All that is required is monitoring of DO in the reactor (keep above 2ppm) via continuous automated control, testing the daily organic COD feed (proxy for BOD), and checking the nutrient levels in the system via dip strip. The several installation options ensure maximum exposure of MLSS to the media. The bacteria adhere to the media while digesting waste from the plant effluent stream. The result is a resident population of biomass that removes BOD and COD efficiently.

MBBR Advantages

  • Compact Bio System
  • Max Operating Range
  • Shock Resistant
  • Easy Care and Maintenance

Typical MBBR Installation — Package Plants Simplify Process

The complete integrated ASO® Bio-carrier Moving Bed BioReactor system package generally consists of an initial SuperSkreen®, equalization/buffer tank, the MBBR vessel with dual blowers, and the PolyAccu Dose® nutrient and polymer feed station. Clients have a choice of dissolved air flotation with the PEWE HD²XLRator®Nx²JEM®T²-MAX®Poly-E²® or the new Dueler® DAF unit. The entire package is controlled with a state-of-the-art Command Control® PLC with color touch-screen operator interface. This flexible design feature allows for a small footprint with new installations or upgrades to existing systems. Consult your Client Systems Engineer with your specific biological needs.