The treatability of high-strength wastewater with conventional anaerobic wastewater treatment is limited by the concentrations of FOG (Fats, Oils and Greases), high salt concentrations and high levels of COD (Chemical Oxygen Demand) or solids. Increasingly high discharge fees and ever stricter legislation have been strong drivers in the development of anaerobic membrane bioreactors (MBRs).
Pentair developed a cutting-edge technology that combines anaerobic digestion and membrane separation to generate biogas and a high quality of reusable water.
Conventional anaerobic granular systems have many limitations. The formation and settlement of the sludge granules is hampered when the concentrations of FOGs, salt or COD become too high.