Recycling treatment system for high-ammonia-nitrogen wastewater

The utility model relates to a recycling treatment system for high-ammonia-nitrogen wastewater. Regulating tank, water outlet is formed in adjusting tank, water outlet passes through first three-way valve, wherein one end of the denitrification tank is connected to a front denitrification tank through an anaerobic reactor; the other one is directly connected to the front denitrification tank; an aerobic tank, a rear denitrification tank, a secondary sedimentation tank, an advanced treatment unit and a recycling unit which are connected with one another are sequentially arranged at the downstream of the front denitrification tank; the advanced treatment unit comprises a high-density sedimentation tank, a first-stage intermediate water tank, a sand filtering tank, a second-stage intermediatewater tank and an ozone catalytic oxidation tower which are connected in sequence; a water outlet of the secondary sedimentation tank is connected with a water inlet of the high-density sedimentationtank; the recycling unit