MBR – Sewage Treatment

The Jacopa MBR (Membrane Bio-Reactor) produces a very high quality disinfected effluent.  Raw sewage generally only requires screening (with a maximum aperture of 2mm in 2d) and de-gritting prior to entering the membrane bioreactor tank.  The process requires no primary or secondary settlement stages and no additional tertiary treatment or UV stages to achieve quality typically better than 5:5:5 mg/L BOD: Suspended Solids: Ammonia.

The Jacopa MBR system has inherent design advantages. It does not remove the solids by settlement; therefore the biomass can operate at very high levels of mixed liquor suspended solids (MLSS), generally in the order of 12,000-18,000 mg/l.  This high concentration enables a low tank volume and a long sludge age to be utilised, which reduces sludge production and allows a small footprint.