The invention discloses an oil-water separation and purification device for catering and a purification method of the oil-water separation and purification device, and belongs to the technical field of
environmental protection equipment. The oil-water separation and purification device comprises a box body and further comprises a filter plate arranged in the box body, a motor, a spiral
propeller , waterproof telescopic rods, a movable plate and an annular air bag ; the motor is mounted on one side, far away from the
slag discharging opening, of the box body through a bracket; the spiral
propeller is rotationally connected to the filter plate, and the end, far away from the
slag discharging opening of the box body, of the spiral
propeller is fixedly connected with the output end of a motor; the waterproof telescopic rods are mounted on the two sides of the lower end in the box body; the movable plate is connected into the box body in a sealed and sliding mode, the lower end of the movable plate is fixedly connected with the telescopic end of the waterproof telescopic rod, and an annular penetrating opening is formed in the movable plate; and the annular air bag is fixedly connected to the annular penetrating opening in a sealed mode. According to the oil-water separation and purification device ,
grease and residues in restaurant
wastewater are removed, the oil-water separation effect is good, floating oil is convenient to remove, and
purified water can be used for watering flowers, washing vehicles and the like.