“…However, severe membrane biofouling decreases the flux and requires regular membrane cleaning and replacement leading to expensive operating costs, being the major bottleneck to the development and widespread application of AnMBR . Biofouling is primarily caused by complex biological interactions between the membrane surface and foulants, resulting in undesired microbial components adhering to the membrane surface and/or within membrane pores, with quorum sensing (QS) playing a crucial role. , QS, a microbial communication mechanism based on N -acyl homoserine lactones (AHLs) associated with biofouling, is known to play a significant role in regulating important microbial behaviors, including the formation of biofilm. , Thus, to address the issue of biofouling in AnMBR, it is necessary to gain comprehensive insight into microbial behavior and various environmental conditions that affect the formation and regulation of biofilm.…”