Sewage solid-liquid separation device and sewage treatment system

The utility model discloses a sewage solid-liquid separation device and a sewage treatment system, which comprise an aeration tank and a separation tank, the bottom of the aeration tank is provided with a first aeration device, the aeration tank is provided with a water inlet opening, the position of the aeration tank close to the water inlet opening is provided with a filter screen, and the side wall of the aeration tank is provided with a stirring part; one side wall of the separation tank is communicated with the aeration tank; a sewage outlet and a drainage outlet are formed in the other side wall of the separation tank, the sewage outlet is close to the top end of the separation tank, the drainage outlet is close to the bottom of the separation tank, and a fender perpendicular to the bottom of the separation tank is arranged at the position, close to the drainage outlet, of the bottom of the separation tank. According to the utility model, solid-liquid separation of sewage is realized. 本实用新型公开了污水固液分离装置和污