Rapid Bio-treatment Technology integrates the 'flow-separation' principle in fluid mechanics with microbial treatment techniques. It employs a special 'solid-liquid-gas' triphasic motion to aggregate suspended solid particles in wastewater around the rapid bio-treatment spheres. This forms a complete biological chain in the direction of the water flow in the rapid bio-treatment pool, repeatedly undergoing 'aerobic-anaerobic-aerobic' coupled biological treatment processes. It innovates from a singular biological environment in general wastewater biological treatment to a diverse biological environment, enhancing wastewater treatment efficiency while also achieving in-situ sludge reduction.