▎ 摘　　要

NOVELTY - A graphene sewage filter, relating to the technical field of sewage treatment, it comprises cylinder, graphene adsorption layer, upper tray, lower tray, a piston rod, a hydraulic cylinder, a filter water inlet, drain, filter water outlet and back washing water inlet; the cylinder body is provided with a graphite absorbing layer, upper and lower surface of the graphite absorbing layer are respectively provided with an upper tray and a lower tray, the centre of the cylinder is provided with a piston rod, the piston rod upper end connected with the hydraulic cylinder; the bottom of the cylinder is provided with a filter water inlet and a sewage outlet; the top part of the cylinder is provided with a filtering out of water outlet and back washing water inlet; the graphite absorbing layer composed of graphene and high molecular polymer, high molecular polymer in graphene is set. The utility model The graphene sewage filter, large absorption capacity for absorbing heavy metal ion mercury, graphene can be recycled, low use cost, the utility model has simple structure, rational design, low manufacturing cost and so on.