Low-resistance short-flow and pollution-resistant flat sheet membrane

• Main Authors: QIU TAO, LIU XUHONG, GAO LINDONG
• Format: Patent
• Language: English
• Published: 28.01.2015
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a low-resistance short-flow and pollution-resistant flat sheet membrane. The front side surface and the rear side surface of a supporting plate are provided with flow guide grooves which are connected with water outlets; the water outlets are formed in random positions on the periphery of the supporting plate; a layer of flow guide cloth covers and is adhered to each of the front side surface and the rear side surface of the supporting plate; a millipore filtering membrane covers and is adhered to the outer side of any one layer of the flow guide cloth. The front side surface and the rear side surface of the supporting plate are respectively provided with a plurality of island-shaped bulges; the flow guide grooves are formed by gaps among the island-shaped bulges; penetrating holes are formed in the middle of the supporting plate; an edge frame is arranged at the periphery of the supporting plate; the peripheries of each flow guide cloth and each millipore filtering membrane are welded with the edge frame. According to the low-resistance short-flow and pollution-resistant flat sheet membrane, the flow guide grooves are used for reducing water flow resistance, and shortening the water collecting flow, so that the energy consumption is reduced, the pollution of biological sewage treatment to the filtering membrane is reduced, the using intensity is kept and the on-line cleaning is facilitated.