Patent ID: 7022238
Filing Date: 2006-04-04
Classification: B01D,C02F

Abstract:
1. An immersion type membrane filter apparatus for obtaining filtrate by filtrating a fluid to be processed stored in a storage bath, comprising: a filtration membrane module including a group of tubular membranes containing a plurality of tubular membranes having on the inner surfaces thereof the function of filtrating said fluid to be processed and having a protrusion partially formed on the outer periphery thereof, said group of tubular membranes being disposed within a columnar housing vessel having a discharge port for said filtrate and being supported by both the ends of said housing vessel, said filtration membrane module being capable of being immersed in said fluid to be processed in said storage bath in such a way that said tubular membranes are opened in the vertical direction, and an air bubbles supply device for supplying air bubbles to said filtration membrane module, disposed beneath said filtration membrane module within said storage bath.