Aerobic Granular Sludge

Aerobic granular sludge (AGS) systems have been developed over the past 25 years and now offer a relevant alternative over conventional activated sludge systems. Worldwide, more than 70 full-scale plants are now in operation or under construction based on sequencing batch reactors (SBR), treating a wide range of municipal and industrial wastewaters. In theory, the advantages of AGS include enhanced settling properties, a high suspended solid concentration and the co-existence of different redox conditions across the granules, which result in significant energy, footprint and chemical savings. Our research mainly aim at advancing our understanding of granule formation during treatment of municipal wastewater and at critically evaluate the performances of AGS systems over other biological treatment processes.