A method for potting hollow fiber membranes comprises the steps of forming a bundle of membranes with a layer of adhesive; covering one end of the bundle with a permeate pan, the ends of the membranes protruding upwards into the permeate pan; and flowing a liquid potting material into the permeate pan. The bundle may be tilted to more quickly distribute the liquid potting material. An apparatus for filtering liquid with hollow fiber membranes comprises a bundle of membranes, a layer of adhesive spaced from the end of the bundle, a permeate pan covering the end of the bundle, and a header formed with the membranes, the adhesive and the pan.

An air separation module includes a housing, an air separation element, and an insulating element. The housing has an inlet and two outlets. The air separation element is enclosed within the housing and extends along a length of the housing. The insulating element is positioned inward of an outer perimeter of the housing and substantially surrounds an outer perimeter of the air separation element along a length of the air separation element.

A process for preparing a semi-permeable membrane includes providing an aqueous phase comprising a polyfunctional amine monomer, covering a surface of a porous support membrane with the aqueous phase, applying an organic phase comprising a polyfunctional acyl halide monomer, a phosphorous containing compound and a co-solvent, and allowing the polyfunctional amine monomer and the polyfunctional acyl halide monomer to perform an interfacial polymerization reaction to form a polyamide thin film composite layer. The presence of the co-solvent together with the phosphorous compound in the organic phase potentiates the effect of the phosphorous compound so that the water flux is increased without substantially sacrificing the salt rejection.

A dialyzer, a dialysis machine, a kit and a process for producing the dialyzer. The dialyzer includes a plurality of hollow fibers disposed in a housing of the dialyzer. The hollow fibers are wrapped with a textile fabric that is fluid-permeable and/or at least partly water-soluble.

The present disclosure relates to devices and processes for the production of hollow fiber membrane bundles. The bundles are used for the manufacture of filtration and/or diffusion devices, e.g., capillary dialyzers.

A hollow fiber membrane module having: a tubular case; a plurality of hollow fiber membranes disposed within the case; sealing and fixing parts that fix the hollow fiber membranes to each other at the ends of the plurality of hollow fiber membranes; and sealing parts that seal annular gaps between the case and the sealing and fixing parts. The sealing parts are bonded to the inner peripheral surface of the case and the outer peripheral surface of the sealing and fixing parts while being allowed to expand or contract in the direction in which the spacing of the gaps between the case and the sealing and fixing parts changes.