Novel submerged flat membrane element

Abstract

The invention relates to a novel submerged flat membrane element, which comprises a middle support plate (2), wherein the two plate surfaces of the same plate are provided with a plurality of vertical guide channels (1); and the membranes (3) are arranged on the two surfaces of the middle support plate (2). The novel submerged flat membrane element is characterized in that: side compression bars (4) are arranged on the left and right sides of the middle support plate (2), and an upper end part (5) and a lower end part (6) are arranged on the upper and lower ends of the middle support plate (2) respectively; the upper end part (5) and the lower end part (6) are provided with two suction pipes (7) respectively; a plurality of water gathering channels (8) are formed on the middle support plate (2); and the membranes (3) are covered the outside of the water gathering channels (7). In the invention, four suction pipes adopted are favorable for the backwash of the membranes when the membranes are used for a period of time; the novel submerged flat membrane element has the characteristics of easy water outflow, large effective processing area, large flow and the like, improves the effective efficiency of aeration, reduces washing time and saves energy; the membranes can reach 2.5 meters at most; and the occupied area is smaller on the premise of identical sewage treatment amount.

Description

technical field [0001] The invention relates to domestic sewage and industrial wastewater treatment equipment, which is a biological reaction wastewater treatment equipment combined with activated sludge method and biofilm, and is also a new type of membrane bioreactor submerged flat film element. Background technique [0002] In recent years, membrane bioreactors have been developed rapidly at home and abroad, and are used as a new type of efficient sewage treatment equipment. The advantages of the membrane bioreactor are: the activated sludge in the membrane bioreactor is rich in organisms, not affected by sludge expansion, and the effluent quality after treatment is good, which can meet the water quality requirements for reclaimed water reuse, especially suitable for small and medium-sized sewage Treatment plants and the field of decentralized wastewater treatment. The submerged flat sheet membrane bioreactor is the most widely used type of membrane bioreactor. However,...

AI Technical Summary

Problems solved by technology

However, the membrane elements of flat sheet membrane bioreactors in the market are prone to clogging, which affects the water yield and treatment effect. At the same time, there are disadvantages such as long backwashing time and poor cleaning effect.

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