A bioreactor for cultivating microorganisms and cells of animal or plant origin includes a filter pocket which is arranged on the inner surface of a flexible wall of the bioreactor and which is delimited on the outside by the wall of the bioreactor and on the inside by a filter pocket wall. The inside filter pocket wall is formed at least partially by a filter medium. A spacer is arranged in the filter pocket between the wall of the bioreactor and the filter medium. The spacer has at least one through opening. A connecting portion of the filter medium protrudes through the through opening and is directly connected to the wall of the bioreactor. A method of manufacturing a filter pocket in a bioreactor for cultivating microorganisms and cells of animal or plant origin is also provided herein.

Single-use integral chromatography unit having an inlet and an outlet, and comprising one or more plates or pairs of filter plates interposable between a pair of end plates. In certain embodiments, each of the filter plates comprises a polymeric framework with one or more membranes supported therein. The filter plates and end plates may be assembled to form a substantially fixed, substantially water-tight, integral stack. Fluid entering the unit through a common inlet passes the membrane or membranes of each filter plate substantially contemporaneously prior to exiting the unit through a common outlet (cf, parallel flow). The assembly is a modular design, as multiple pairs of plates can be stacked in a suitable holder to form a single chromatography unit.

A substrate for use in an aqueous slurry has a polymeric coating to provide a compliant and sticky surface. The polymer coating has a chemical to render the surface hydrophobic so as to attract hydrophobic or hydrophobized mineral particles in the slurry. The substrate can take the form of a conveyor belt, a bead, a mesh, an impeller, a filter or a flat surface. The substrate can also be an open-cell foam. The polymeric coating can be modified with tackifiers; plasticizers; crosslinking agents; chain transfer agents; chain extenders; adhesion promoters; aryl or alky copolymers; fluorinated copolymers and/or additives; hydrophobicizing agents such as hexamethyldisilazane; inorganic particles such as silica, hydrophobic silica, and/or fumed hydrophobic silica; MQ resin; and/or other additives to control and modify the properties of the polymer.

A bendable flexible flat membrane module includes: a membrane facing each other and constituting both outer surfaces; a support member made of a flexible material and embedded inside the membrane constituting the both outer surfaces; and a plurality of point bonding portions formed by pressing and bonding the both outer surfaces facing each other at a predetermined point.

The present invention relates to a hydrogen separation membrane and to a method for manufacturing same, which is provided for restraining the diffusion of and for imparting excellent bonding characteristics between a porous support and a palladium-based metal separation membrane. The hydrogen separation membrane according to the present invention comprises: a porous support of a metal material or a ceramic material; a buffer layer formed as a plurality of columns by using a ceramic material on the porous support; and a palladium-based metal separation membrane formed on the buffer layer for separating hydrogen. In said case, the buffer layer includes an oxide-based ceramic material of either MO.sub.y (M is Ti, Zr), wherein which the composition of oxygen is 1<y<2, or Al.sub.2O.sub.z, wherein which the composition of oxygen is 2<z<3, and may be formed as a plurality of layers.

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 filtration device includes a holding portion having opposed flexible sides with first and second ends, and a filter having an axis corresponding approximately to an edge of the filter, where the axis is coplanar with a planar surface of the filter. The filter may be arranged between the opposed flexible sides, and the filter may be configured to rotate about the axis such that an angle is formed between the planar surface and one of the opposed flexible sides. The filter may be configured to divide the holding portion into first and second holding parts, where the first holding part and the second holding part may be configured to hold fluid received from the first end of the holding portion and filtrate corresponding to the fluid having passed through the filter, respectively. The filtrate may be configured to exit from an opening at the second end.

The invention relates to a filtration system for use in a method of determining the presence and/or amount of cells, for example, viable cells, in a liquid sample, and to methods of using and manufacturing such a filtration system. The filtration system includes a cup with an upper portion and a ring portion, where the ring portion is separably coupled to the upper portion.

The technology disclosed relates to a method for manufacturing a membrane distillation arrangement 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. The joined membrane may then be 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 may be 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.

A filter element for cleaning liquids, having a stack of at least two filter membrane pockets, which are substantially flat and include a flexible, liquid-permeable filter material for retaining waste particles and/or microbes, wherein each filter membrane pocket has a substantially polygonal shape with at least three corners and a corresponding number of edges, wherein the filter membrane pockets are stacked with a defined distance and aligned with each other, wherein aligned corners of the filter membrane pockets are embedded in a casting covering only part of the adjacent edges such that the casting for each corner is spaced from the castings of the neighboring corners.