Research progress on strategies for the improvement of aerobic granular sludge in a continuous flow system:A review
Aerobic granular sludge(AGS)is considered a promising new type of wastewater biological treatment technology due to its high sludge concentration,compact structure,robust biological activity,efficient settling performance,synchronous nitrogen and phosphorus removal,and strong load resistance.It is expected to be promoted and applied in the field of water pollution control.Compared to the traditional sequencing batch reactor(SBR),the continuous flow reactor aerobic granular sludge(CFR-AGS)offers advantages such as continuous treatment,simplified operation,and high equipment utilization.These advantages render it a suitable solution for a diverse array of wastewater treatment demands,thereby elevating its research and application significance.Through the compilation and synthesis of relevant literature and an examination of the domestic and international research status of AGS,this study delved into the challenges and constraints of sludge granulation in a continuous flow process.It further proposed strategies to foster sludge granulation under continuous flow conditions and offered insights into the future research directions and developmental trends of CFR-AGS.