A gas/fluid mass exchange apparatus is disclosed. The apparatus comprises a gas permeable membrane which is arranged to separate a first region for receiving a gas flow, from a second region for receiving a fluid flow. The apparatus further comprises support means which is arranged to maintain the shape and orientation of the membrane.

A gas separation membrane unit includes: a gas separation membrane configured to separate a predetermined gas component contained in a mixed gas supplied to a first surface by allowing the predetermined gas component to permeate to a second surface that is a reverse surface of the first surface; a gas flow path part including a wall body configured to define an internal space through which the predetermined gas component separated flows; and a first convex structure protruding from at least one of the first surface of the gas separation membrane and an outer surface of the wall body.

A robust crossflow filtration cassette holder, allowing easy mounting and removal of filtration cassettes. The cassette holder comprises a distributor plate, an end-plate, a plurality of essentially parallel tie rods connecting the distributor plate with the end-plate, and a compression plate slidably mounted on the tie rods between the distributor plate and the end plate, wherein at least one of the tie rods is movable in its entirety between an open position or orientation, allowing mounting or removal of a filtration cassette, and a closed position or orientation, in which the movable tie rod is in engaged connection with the cassette and locks it in the holder by a locking means.

A novel embodiment of a Free Flow Filtration Unit ensuring unimpeded flow of media to be filtered and unimpeded flow of permeated media in a leakage proof fully fused rigid unit. A Filtration Unit fused into a singular element, formed by a fused stack of internally channeled flat filter plates (1) each plate formed by fusing of two molded flat half filter plates (2, 3), the filter effect formed by perforation slits or holes (10) in the surface of the plates, said perforations connecting to channels (9) in the plates for free flow of permeate (filtered media) leading to one or more exit (4) perpendicular to the plate, the filter plate exits forming exit channels for permeate from the Filtration Unit as the filter plates (1) are fused into a stack at the exit (4) and at bonding points (8) securing that the filter plates are spaced and rigidly fixed at specific distance in the stack, offering slit like gaps at least at 2 sides for free access and exit flow of media to be filtered. The filter area surface (6) can be covered by fusing a fine filter (7), typically an organic flat sheet membrane, to the filter area surface, whereby very fine micro or ultra-filtration or even molecular filtration can be achieved.

The invention concerns a filtration device comprising a manifold providing fluid connection and mechanical connection comprising a clamping plate movably mounted relative to the manifold and adapted to compress at least one cassette against the manifold, means for driving and guiding the clamping plate comprising a rod extending between the manifold and the plate, an actuator provided with a body and a member moveable relative to the body, which member is adapted to move through a predetermined travel between an extended position and a retracted position, the body being carried by the manifold, and the member carrying the rod and driving the plate via the rod to a clamped position in which the member is in an intermediate retracted position in which it has moved through a shorter travel than the predetermined travel relative to its extended position.

A humidification device is provided with at least one stacked unit of water vapor-permeable membranes and of support frames. The support frames are stacked on each other. The membranes each are positioned between two of the support frames, respectively, and have edges clamped between the two support frames. The membranes are arranged parallel and spaced apart relative to each other. Between the two support frames, a supply air flow path extends on a first lateral face of the membrane and, angularly displaced to the supply air flow path, an exhaust air flow path extends on a second lateral face of the membrane facing away from the first lateral face. A flow opening of the supply air flow path and a flow opening of the exhaust air flow path are delimited by the two support frames and extend parallel to a plane of the membrane clamped between them.

A gas/fluid mass exchange apparatus includes a gas permeable membrane which is arranged to separate a first region for receiving a gas flow, from a second region for receiving a fluid flow. The apparatus further a support element which is arranged to maintain the shape and orientation of the membrane.

The technology disclosed relates to an arrangement for membrane distillation made of at least one plate including a structure having at least one depression or cavity. A membrane is an integral/integrated part of the plate structure or is joined to surface portions of a first side of the structure of the at least one plate so that the joined membrane is substantially parallel with and is facing a relatively thin wall constituting at least some of the more central portions of the plate structure. The surface portions of the membrane are directly joined to the surface portions of the plate structure to form a compartment configured for condensing gas into liquid. Two plates may be directly joined to each other to form a compartment for a warm-liquid channel and/or two plates may be joined to each other to form a compartment for a cooling channel.

Membrane-based hydrogen purifiers having graphite frame members. The purifiers include a hydrogen-separation membrane module with at least one membrane cell containing at least one hydrogen-selective membrane, which includes a permeate face and an opposed mixed gas face, and a fluid-permeable support structure that physically contacts and supports at least a central region of the permeate face. The membrane cell further includes a permeate-side frame member and a mixed gas-side frame member. The permeate-side frame member is interposed between the hydrogen-selective membrane and the fluid-permeable support structure to physically contact a peripheral region of the permeate face and a peripheral region of the fluid-permeable support structure. The mixed gas-side frame member physically contacts a peripheral region of the mixed gas face. At least one of the permeate-side frame member and the mixed gas-side frame member is a graphite frame member.

An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to decreased residence times and higher purity water.