Method for treating landfill leachate for up-to-standard emission through biochemical treatment combined with electrocatalytic oxidation treatment

The invention discloses a method for treating a landfill leachate for up-to-standard emission through biochemical treatment combined with electrocatalytic oxidation treatment. The invention relates toa sewage treatment method, and treatment equipment employed by the treatment method comprises an adjusting tank, a lifting pump, a first-stage pH adjusting stirring box, a first-stage hydroxyl flocculation composite bed, a second-stage pH adjusting flocculation box, a lifting pump, a plate-frame filter press, a middle water tank, a middle lifting pump, a second-stage hydroxyl flocculation composite bed, a pH adjusting flocculation box, a first-stage sedimentation tank, a first-stage BAF, a third-stage hydroxyl flocculation composite bed, a pH adjusting flocculation box, a second-stage sedimentation tank, a second-stage BA, a fourth-stage hydroxyl flocculation composite bed, a third-stage BAF, a sedimentation tank and a clear water tank. The whole set of sewage treatment equipment in the method is automatically co