Cleaning system and cleaning method for efficiently cleaning aerator

The invention discloses a cleaning system and a cleaning method for efficiently cleaning an aerator, the cleaning system comprises an aeration tank and the aerator, the aerator is arranged in the aeration tank, the cleaning system also comprises a micro-nano bubble generating device arranged in the aeration tank, the micro-nano bubble generating device comprises a filter box, a water pump, a micro-nano bubble generator and an air inlet assembly, a containing cavity is formed in the filter box, the containing cavity is communicated with the inside of the aeration tank, the water pump and the micro-nano bubble generator are arranged in the containing cavity, the water pump and the air inlet assembly are respectively connected with the micro-nano bubble generator, and an outlet of the micro-nano bubble generator is communicated with the inside of the aeration tank. According to the method, the aerator can be efficiently cleaned through the micro-nano bubbles, production stopping, aeration tank emptying and chemi