High-toxicity degradation-resistant pesticide wastewater treatment system

The utility model relates to a high-toxicity degradation-resistant pesticide wastewater treatment system. The high-toxicity degradation-resistant pesticide wastewater treatment system comprises an adjusting homogenizing tank, a demulsification coagulation reaction tank, a plate-and-frame filter press, a catalytic ozonation reaction tank, a middle buffer tank, an anaerobic reactor, an AO biological synergistic biochemical reaction tank, a biochemical sedimentation tank, an improved Fenton reaction tank, a Fenton sedimentation tank and a discharge water tank which are communicated in sequence. According to the utility model, an adjusting homogenizing tank, a demulsification coagulation reaction tank, a plate-and-frame filter press, a catalytic ozonation reaction tank, a middle buffer tank, an anaerobic reactor, an AO biological synergistic biochemical reaction tank, a biochemical sedimentation tank, an improved Fenton reaction tank, a Fenton sedimentation tank and a discharge water tank are organically combined