The recent development of the aerobic granular sludge for industrial wastewater treatment: a mini review

ABSTRACT Industrial wastewater usually has high organic load and contain lots of toxic substances, which is hard to be treated. Because of many advantages such as the high organic loading rating tolerance, and outstanding pollutants degradation ability, excellent sedimentation characteristics, and low operation cost, aerobic granular sludge (AGS) has the great potential to treat industrial wastewater. The application of AGS for industrial wastewater treatment still needs to be explored. Because of the type of diversity and the complex components of industrial wastewaterBesides, the technical features of AGS are versatile and there were no unified regular characteristics, which hindered the AGS plant application for industrial wastewater treatment. Therefore, in this work, the development of AGS industrial wastewater treatment in the last decade was summarized. Then, the technical features of AGS industrial wastewater treatment including process flow, reactor types, operation parameters, treatment efficiency, and application prospects were all summarized and analysed. Finally, the existing problems in the treatment of industrial wastewater by AGS and future development tendencies were discussed. GRAPHICAL ABSTRACT