POTTING METHOD FOR PRODUCING FILTERING HOLLOW FIBRE MEMBRANES AND HEADER WITH FILTERING HOLLOW FIBRE MEMBRANES

摘要

Headers are prepared with an opening including an inner space defining a part of a permeate channel. A thixotropic, water soluble gel is placed in the header in the space reserved for the permeate channel. A plurality of hollow fibre membranes are collected together and their open ends are inserted into the gel. A fixing liquid, typically a resin, is place d over the gel. The fixing liquid surrounds each membrane and then solidifies, simultaneously sealing the outer surfaces of the membranes and forming a plug in the opening of the header to complete the permeate channel. After the fixing liquid has solidified, the gel is removed in part by vibrating the gel to a liquid state or dissolving it. The space initially occupied by the gel becomes part of the permeate channel after the gel is removed.