46 results about "Capillary membrane" patented technology

The invention discloses a membrane filter with a waterweed type double filtration function. The membrane filter belongs to the technical field of environment protection water treatment and membrane separation and is particularly suitable for an immersed type membrane biological reactor (MBR). The membrane filter with the waterweed type double filtration function is characterized by comprising a plurality of membrane filter units, wherein each capillary membrane is closed on one end, and is packed and protected by a mesh cloth filter sleeve provided with one closed end. A protective membrane is respectively provided for each bundle of capillary membranes, so that a problem that roots of the capillary membranes are weak is solved; the mesh cloth filter sleeve filters fiber substances, so that the fiber substances cannot contact and wind with the capillary membranes; blocked larger suspended matters, particularly the fiber substances leave the mesh cloth filter sleeve under an action of gas disturbance, thereby achieving upward barrier-free floating. The mesh cloth filter sleeve and filter units combined by the plurality of capillary membranes are very tall and straight, and can be independently erected in water, thereby avoiding winding of the filter units; besides, produced water is filtered by a filter cloth filter sleeve and the capillary membranes, so that quality of the produced water is ensured better.