The flat plate membrane element is composed of a filter membrane, a flow guide cloth and a flow guide plate. A suction port is arranged at the top of the flow guide plate, the filtered water is drawn out under the action of negative pressure through the suction port of the membrane element. Its material is PVDF, the aperture is 0.05-0.4 M.

The working principle of flat-plate Membrane is: flat-plate Membrane is placed vertically in aerobic reaction tank, clear water and small molecular substances (such as salts) pass through the surface of the vertical membrane under negative pressure drainage; A certain concentration of activated sludge mixture decomposes the organic matter under the action of Aeration, and the air flow washes up the surface of the membrane, so that the sludge is not easy to pile up on the surface of the membrane, thus maintaining a constant pervious yield.