Research progress of aerobic granular membrane bio-reactor technologies for wastewater treatment

With the introduction of stricter pollutant discharge standards, the development of compact, efficient and less energy-consuming wastewater treatment technologies has become an urgent need in the field of water treatment. The present status of aerobic granular membrane bioreactor (AGMBR) technology in water treatment at home and abroad in recent years was reviewed. The compositions and pollutant removal performances of various AGMBR reaction systems were briefly introduced. The characteristics of membrane fouling of aerobic particles in membrane biofilm were systematically summarized, and AGMBR method was superior to the traditional MBR method in reducing membrane fouling, but it also had the problem of irreversible pollution. The factors affecting the stability of aerobic particles were analyzed from four aspects, i.e. substrate and feeding mode, quorum sensing, extracellular polymer substances and metal ions. The application prospect of AGMBR method was also prospected.