BFM-BASED EFFICIENT WASTEWATER TREATMENT METHOD AND SYSTEM USING AOA COUPLED WITH ANAEROBIC AMMONIA OXIDATION

The present invention relates to the technical field of wastewater treatment, and disclosed are a BFM-based efficient wastewater treatment method and system using AOA coupled with anaerobic ammonia oxidation. The method comprises: wastewater to be treated enters an anaerobic area and then enters a carbon migration area; a resulting supernatant in the carbon migration area enters an aerobic pure MBBR area, resulting sludge in the carbon migration area is discharged from the bottom of the carbon migration area, and the sludge is transported to a selection area by means of a pipeline connected to a sludge transfer pump; output water from the aerobic pure MBBR area sequentially enters the selection area, an anoxic IFAS area, and a secondary sedimentation area. According to the method in the present invention, by means of the provision of the carbon migration area, a pure MBBR operating state in the aerobic area is achieved, thereby avoiding the problem of carbon loss of activated sludge in the aerobic area; in ad