Leachate treatment system of garbage transfer station

The utility model relates to a leachate treatment system for a garbage transfer station, which comprises a sewage collection tank, a pretreatment system, an anaerobic/aerobic system, a membrane bioreactor, an oxidation treatment system and a disc tube type reverse osmosis membrane system, the pretreatment system is composed of an oil separation sedimentation tank, a dissolved air floatation tank and an adjusting tank which are connected in sequence, the oil separation sedimentation tank is connected with a sewage collection tank, and the adjusting tank is connected with a primary filter I. The anaerobic/aerobic system comprises a primary A/O tank and a secondary A/O tank, the primary A/O tank is connected with the primary filter I, and the secondary A/O tank is connected with a primary filter II. The primary filter II is connected with a membrane bioreactor, the membrane bioreactor is connected with an oxidation treatment system, and the oxidation treatment system is connected with a disc tube type reverse os