Patent ID: 7727393
Filing Date: 2010-06-01
Classification: B01D,C02F

Abstract:
1. A submerged hollow fiber large membrane module, comprising: first and second module bodies; module support tubes between the first and second module bodies to keep the first and second module bodies spaced apart by a predetermined distance; first and second plate type module header insertion layers each of which has a plurality of hollow fiber membrane spaces disposed apart from one another, the first and second plate type module header insertion layers being inserted into the first and second module bodies respectively to form a permeated water collection space in each of the module bodies; first and second plate type diffusion layers which are provided at an upper portion thereof with an air injection port, the first and second plate type diffusion layers being inserted into the first and second module bodies respectively subsequent to the module header insertion layers to form a diffusion space in each of the module bodies; and at least two hollow fiber membrane units, each hollow fiber membrane unit including first and second module headers and a bundle of hollow fiber membranes disposed between the first and second module headers, wherein the first and second module headers of each of the at least two hollow fiber membrane units are inserted into the first and second module bodies respectively through the corresponding hollow fiber membrane spaces of the first and second plate type module header insertion layers such that the bundle of hollow fiber membranes are in fluid communication with the permeated water collection space and the module headers inserted into each module body are spaced apart from each other by the hollow fiber membrane spaces of each plate type module header insertion layer, and wherein each of the two plate type diffusion layers has diffusion tubes surrounding the bundle of hollow fiber membranes by three sides while being spaced apart by a predetermined distance from the module headers.