Patent ID: 6214232
Filing Date: 2001-04-10
Classification: B01D,B01J

Abstract:
An apparatus for substance-specific treatment of a fluid comprising:a) a housing,b) an inlet arrangement, connected to a distribution space, for introducing the fluid to be treated into the housing,c) an outlet arrangement, connected to a collection space, for removing the treated fluid from the housing,d) an arrangement of first hollow-fiber membranes, and second hollow-fiber membranes,whereby the first and second hollow-fiber membranes in the arrangement are substantially parallel to each other and each of the hollow-fiber membranes respectively have an end facing the distribution space and an end facing the collection space, whereby the first hollow-fiber membranes have cavities formed by their walls, open in the direction of the distribution space and closed in the direction of the collection space, and at least at the respective end facing the distribution space are embedded in a sealing compound that is joined in a fluid-tight manner with a wall of the housing, and whereby the second hollow-fiber membranes have cavities formed by their walls, open in the direction of the collection space and closed in the direction of the distribution space, and at least at the respective end facing the collection space are embedded in a sealing compound that is joined in a fluid-tight manner to the wall of the housing,wherein the first hollow-fiber membranes are arranged in at least one flat first layer of adjacent first hollow-fiber membranes and the second hollow-fiber membranes are arranged in at least one flat second layer (19) of adjacent second hollow-fiber membranes, wherein each first layer is adjacent on at least one of its sides, over substantially the entire extent of its surface, to a second layer, and each second layer is adjacent on at least one of its sides, over substantially the entire extent of its surface, to a first layer, wherein the first and second layers have substantially the same thickness, wherein the housing contains a matrix on and/or in which substance-specific groups acting in a substance-specific manner are immobilized, and the filling ratio .epsilon. of the housing is greater than 0.55.