A filtration system comprising a membrane arrangement comprising membrane housings extending in a first direction and having openings that are located in a common plane and face a common area, and membranes arranged inside the membrane housings and configured to be replaced via the openings, and a lifting arrangement comprising a support frame having a beam that extends along the common plane and is provided vertically above the common area, and a gripper unit slidably attached to the beam and arranged to grip the membranes and transport the membranes in a direction along the common plane.

The present disclosure relates to an apparatus used in the production of a sterilizing filter for dead-end filtration of medical liquids which comprises a plurality of microporous hollow fiber membranes having a large inner diameter, and to a process for operating the apparatus.

A membrane holder for hollow fibre membranes, in particular for applying in a tube filter, includes a central pipe having spaced apart bands of inlet openings formed along a circumference of the central pipe to flow liquid through the central pipe, holding elements arranged around the central pipe, which holding elements have radially extending wall parts distributed along the circumference of the central pipe, and closing parts extending between the free ends of the radially extending wall parts for confining a bundle of hollow fibre membranes between two adjacent radially extending wall parts and a closing part, and deflector plates concentrically arranged around and spaced apart from the central pipe and, when viewed in radial direction, covering the bands of inlet openings.

A filter housing includes a sleeve, a first endcap coupled to a first open end of the sleeve, and a second endcap coupled to the second open end of the sleeve. The sleeve includes an interior volume with an outer radial portion and an inner radial portion. The first endcap includes first plurality of ports that connect to the outer radial portion and the inner radial portion of the interior volume of the sleeve. The second endcap includes a second plurality of ports that connect to the outer radial portion and the inner radial portion of the interior volume of the sleeve. The filter housing is configured to enclose a filter member in the sleeve between the first endcap and the second endcap. A method is for filtering liquid with a filter that includes a filter member and a filter housing.

A reverse osmosis filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a floating key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter base may be situated inline, and in fluid communication, with the raw water ingress, permeate egress, and reject water egress. The reverse osmosis filter housing assembly may be attached to, and removed from, the filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.

A housing-free first dialyzer element has a hollow-fiber bundle, a fluid-permeable sheath wrapped around the periphery of the hollow-fiber bundle, cast elements at the axial ends of the hollow-fiber bundle, and end caps fastened to the cast elements for connection to an extracorporeal blood circulation. A second dialyzer element has a housing and can be closed, opened and reused. A dialyzer includes the housing-free first dialyzer element and the second dialyzer element that has a housing. A blood treatment device includes the second dialyzer element that has the housing, the second dialyzer element being rigidly fastened to a machine front. A method for reprocessing the second dialyzer element that has the housing can be used after blood treatment therapy.

A method of operating a high velocity cross flow dynamic membrane filtration includes feeding a fluid stream into a pressure vessel, in which the vessel defines a treatment chamber containing a disc membrane assembly having a first support shaft and a second support shaft, each support shaft defining a longitudinal axis about which is positioned a plurality of axially spaced membrane discs. The method further includes distributing the fluid stream over at least a portion of the disc membrane assembly. The method also includes discharging a first portion of the fluid stream from the vessel and discharging a second portion of the fluid stream from the vessel. The method additionally includes rotating the first support shaft and the second support shaft in a first direction. The rotating includes modulating a rotation rate in response to the flow rate of the second portion of the fluid stream.

An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism, the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water, the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism, and the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.

A high velocity cross flow dynamic membrane filtration system includes a disc membrane assembly having a frame and at least two support shafts. Each support shaft defines a longitudinal axis about which is positioned a plurality of axially spaced membrane discs, with each shaft further coupled to the frame. A permeate tube is coupled to each support shaft and in fluid communication with the membrane discs associated with that support shaft. A vessel defines a treatment chamber and is configured to removably support the disc membrane assembly within the treatment chamber. The vessel further includes a wall. The filtration system also includes a drive system. The permeate tubes are configured to extend through a portion of the vessel wall when the disc membrane assembly is positioned within the treatment chamber. The permeate tubes are further configured for rotation by the drive system.

The invention relates to an air-separation device comprising a generally cylindrical casing housing a filtration element including a bundle of hollow oblong fibers forming a membrane, the longitudinal axis of the fibers being parallel to the longitudinal axis (A) of the cylindrical casing, said casing comprising an air inlet at a first end and an outlet for purified gas at a second end. The device comprises a member for maintaining the fiber bundle in the casing, characterized in that the maintenance member comprises at least one spring member disposed inside the casing, said spring member being loaded between an end-stop formed by the casing and a longitudinal end of the fiber bundle in order to maintain the fiber bundle longitudinally in place while allowing it to dilate and contract.