▎ 摘　　要

NOVELTY - The device has a storage tank (13) whose top is not sealed and is provided with a support (11). The support is provided with a tapered graphene-based mesh membrane (12). A shower head (10) is configured to face the middle of the graphene-based mesh film. The edge of the graphene-based mesh film is connected to the edge of the storage tank. The storage tank is arranged in the middle of the annular overflow tank (21). The top side of the overflow tank is connected to one end of an overflow pipe (14). The end of the overflow pipe is set in communication with an oil storage tank (15). A drain pipe (20) is connected to the bottom of the storage tank. The end of the drain pipe is configured to face a guide groove (26). A water valve (19) is arranged on the drain pipe. USE - Self-overflowing graphene oily sewage treatment device. ADVANTAGE - The oil content in the post-water and the water content in the oil is greatly treated through multiple oil-water separation. The whole process is completed by gravity, so that no additional energy consumption is required and the environment is clean and easy to maintain. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the self-overflowing graphene oily sewage treatment. Shower head (10) Support (11) Mesh membrane (12) Storage tank (13) Overflow pipe (14) Oil storage tank (15) Water valve (19) Drain pipe (20) Overflow tank (21) Guide groove (26)