Biological Sidestream Ammonia Treatment Utilizing Membrane Thickening of Waste Activated Sludge

This paper describes the Digestivore process, a new development that functions as a sludge handling system and also provides ammonia treatment of side streams at wastewater treatment plants. The Digestivore process is a very versatile and robust technology that features an aerobic digestion process utilizing flat plate membranes for thickening waste activated sludge (WAS) and biological treatment of dewatering equipment side streams from solids handling processes that produce high concentrations of ammonia most notably anaerobic digestion and autothermal thermophilic aerobic digestion (ATAD) systems.