AERATION UNIT AND FILTERING APPARATUS COMPRISING THE SAME

摘要

PURPOSE: A diffusion unit and a filter using the same are provided to increase filtration efficiency of a filter by uniform cleaning of all hollow fiber membranes and to offer a filter with relatively low cost. CONSTITUTION: A diffusion unit includes a plurality of parallelly arranged diffusion tubes(230) and a first common pipe(240). The diffusion tubes include a first end and a second end in the opposite side. The first common pipe is connected to each of the diffusion tubes to provide air to the diffusion tubes through the first end. The first common pipe is vertically arranged to the diffusion tubes and the diffusion tubes are arranged more densely in the both ends than the center of the first common pipe. Any one of the diffusion tubes is connected to the center of the common pipe. Diffusion holes are formed in the common pipe. A second common pipe(250) connected to each diffusion tube through the second end is further included. The first and the second common pipes are parallelly arranged with each other.