Research Progress on the Resource Utilization of Aerobic Granular Sludge Technology

At present, the future innovative sewage treatment processes should have the advantages of resource utilization and energy self-sufficiency, of which the aerobic granular sludge process has great potential in resource recovery of high value-added biological materials based on its own characters. The relationship between the mechanism of aerobic granular sludge formation and its resource recovery is closely related. Based on the aerobic granular sludge resource recovery pyramid, the status of high value-added products deserves in-depth study. Meanwhile, the extraction methods are correspondingly different and uneconomic according to the characteristics of diverse high value-added products. Thus, the exploitation of efficient and low-cost separation and purification technologies is the key to realize the resource utilization of aerobic granular sludge.