Landfill leachate full-quantification combined treatment system and treatment method thereof

The invention provides a full-quantification combined treatment system for landfill leachate and a treatment method of the full-quantification combined treatment system for the landfill leachate. Comprising an adjusting tank, an ozone-coagulative precipitation tank, a two-stage A/O reaction tank, a secondary sedimentation tank, a comprehensive coagulative precipitation tank, a PH adjusting tank, a secondary coagulative precipitation tank, an ozone heterogeneous catalysis advanced oxidation tank and a BAC filter tank which are connected in sequence, and the sludge concentration tank is used for receiving sludge discharged by the ozone-coagulative precipitation tank, the two-stage A/O reaction tank, the secondary sedimentation tank, the comprehensive coagulative precipitation tank and the secondary coagulative precipitation tank. The full-quantification combined treatment system for the landfill leachate has the advantages that the treatment effect is good, no concentrated solution is generated, operation is st