▎ 摘　　要

NOVELTY - Graphene film continuous sewage filtering device comprises sewage inlet (1) and membrane treatment system provided with first film filtering pipeline and second film filtering pipeline set with pipeline control electromagnetic valve component set with controlling unit connected with two film filtering pipeline connected in parallel connected with sewage inlet and water tank (14), where back washing two membrane filtration pipeline are connected in series is connected with sewage inlet and sewage collecting tank (17). USE - Graphene film continuous sewage filtering device. ADVANTAGE - The graphene film continuous sewage filtering device enables to realize continuous sewage filtering, filter with high membrane permeability, has long service life and high sewage processing efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for filtering sewage by using graphene film continuous sewage filtering device, which involves: (A) setting electromagnetic valve pipeline control component so that two membrane filtration pipelines are connected in parallel to sewage water inlet and water collection tank so that sewage enters sewage inlet respectively; (B) filtering through membrane filtration pipeline; (C) allowing filtered water to flow to water collection tank; (D) setting electromagnetic valve line control component to connect two membrane processing pipes in series to connect sewage water inlet and sewage collection tank, so that sewage enters first membrane filtration pipeline for positive filtration; (E) subjecting back water reversely to second membrane filtration pipe; (F) washing second filtration membrane; (G) passing to sewage collection tank; (H) arranging electromagnetic valve pipeline control component to connect two membrane treatment pipelines in series to connect sewage to nozzle; (I) allowing sewage to enter second membrane filtration pipeline for positive filtration, where filtered water is reversely entered by first membrane filtration pipeline; and (J) flushing first filtration membrane and sewage after backwashing flows to set sew tank, where after set time it re-enters to positive filtration stage. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of graphene film continuous sewage filtering device Sewage inlet (1) Pipe (8) External thread (9) Water tank (14) Collecting tank (17)