Aerobic granulation technology has been one of the greatachievements in the treatment of biological wastewater [5]. Aer-obic granulation is considered a special case of biofilm composedof self-immobilized cells [6]. It involves cell-to-cell adhesion thatincludes biological, physical, and chemical phenomena and isincreasingly attracting research interest [7]. Compared with con-ventional activated sludge systems, aerobic granulation technologyhas a number of advantages, such as dense and strong microbialstructure, good settling ability, effective sludge–effluent separa-tion, high biomass enrichment, and a great ability to withstand highshock loadings [6,8].