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Abstract

An apparatus and process for substance-specific treatment of fluids, whereby the apparatus comprises a housing with a distribution space and a collection space, between which is arranged a structure of adjacent flat first and second layers containing first and second hollow-fiber membranes, respectively, and a matrix on which groups acting in a substance-specific manner for fluid treatment are immobilized, whereby the filling ratio .epsilon. of the housing determined by the hollow-fiber membranes and the matrix is greater than 0.55. The first hollow-fiber membranes are open in the direction of the distribution space and closed in the direction of the collection space, and the second hollow-fiber membranes are open in the direction of the collection space and closed in the direction of the distribution space, and the hollow fiber membranes are embedded at least at their open end in the sealing compounds. The layers contained in the apparatus are substantially of equal thickness, and each first layer is, on at least one of its sides, adjacent to a second layer and each second layer is, on at least one of its sides, adjacent to a first layer.

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First Claim