A petal-like inner support frame for use in a tubular filter membrane and an application thereof. The support frame includes a central column and a plurality of support arms surrounding, the outside of the central column, the support arms extend along an axis of the central column, and a medium channel is formed between two adjacent support arms. The beneficial effects are: the structure can be processed by equipment at one time without multiple processing; the support frame installed in the tubular filter membrane can realize the enlargement and optimization of the cross sections of the medium channels, thereby improving the, filter efficiency of the filter membrane, obtaining a higher filtration flux of the filter membrane, and achieving a better filtration/separation effect.

There is provided a film separation device 1 equipped with a treatment tank 2 receiving a liquid to be treated, a film unit 3 to be immersed in the liquid to be treated, and a guide mechanism 4. The guide mechanism 4 is composed of holding sections 14 and a guide section 15. The holding sections 14 are provided on a side section of a film cassette 5 constituting the film unit 3, and the guide section 15 is fixed to the treatment tank 2. The guide section 15 has a tank-wall fixed section 15a, an upper extension section 15b, a held section 15c, a lower extension section 15d, and a tank-bottom fixed section 15e. When fixing the film unit 3 to the treatment tank 2, the holding sections 14 are fitted to the held section 15c, thereby guiding the film unit 3 to a predetermined position in the treatment tank 2.

A hollow fiber membrane module includes: a tubular case; a hollow fiber membrane bundle; and a pair of sealing and fixing portions, in which an outside-membrane channel that passes by an outer wall of each of the hollow fiber membranes and an inside-membrane channel that passes through the hollow inside of each of the hollow fiber membranes are formed, moist air flows through the outside-membrane channel, and dry air flows through the inside-membrane channel, whereby moisture in the moist air is supplied to the dry air by a membrane separation effect of the hollow fiber membranes, wherein a plurality of spaces are disposed between the case inner wall and the hollow fiber membrane bundle, and a restriction portion that restricts the hollow fiber membrane from entering into the spaces is partially disposed between the hollow fiber membrane bundle and each of the spaces.

A water-treating ceramic filter module comprising a filter unit, and a housing containing the filter unit; the filter unit comprising pluralities of cylindrical honeycomb structures each having pluralities of flow paths partitioned by porous ceramic cell walls and extending in one direction, and sheet-shaped connecting members connecting the honeycomb structures in series in the flow path direction; each connecting member having pluralities of penetrating holes for achieving the communication of the corresponding flow paths of adjacent honeycomb structures, to constitute pluralities of communicating flow paths; the communicating flow paths being composed of first communicating flow paths plugged only at one-side end, and second communicating flow paths plugged only at the other-side end; and the housing has an inlet on the side of the one-side end for receiving the water to be treated from outside, and an outlet on the side of the other-side end for discharging the treated water.

A filter element for a filter apparatus includes at least one filter member and a frame member arranged to support the at least one filter member in such a manner that an internal cavity is formed. The filter member includes a permeable membrane layer which has a first filter surface for receiving a pressure and directed towards an internal cavity arranged in-side the filter element, and a second filter surface for receiving solid particles filtered from a feed. The filter member forms a capillary filter.

Filtration apparatus for the assay of biological and biochemical reactants, for example, is provided and includes a substrate such as a plate having one or more wells open at each end, and a porous membrane positioned in each well forming a discrete filtering area. The filtration apparatus includes a seal that is in a compressible relationship with the face of the porous membrane, the surface of the compression element, and the well wall. Each well includes a compression element, such as an internal well insert or sleeve, which compresses the seal so that the seal contacts the membrane face, the surface of the compression element, and the well wall in a liquid-tight manner. The compression element may be configured so that it is fixed in the well such as by an interference fit with the well wall or by bonding to a surface of the substrate.

Provided are a central tube for a filter cartridge and a filter device having same. The central tube (100) comprises a first half tube (1), a second half tube (2) and a membrane element (3), wherein the first half tube (1) has a first mating surface, and the first mating surface is grooved to form a first flow channel (111); the second half tube (2) has a second mating surface, the second mating surface is grooved to form a second flow channel (21), and the first half tube (1) and the second half tube (2) are butt-jointed to form a hollow, straight tube shape; and the membrane element (3) is arranged between the first half tube (1) and the second half tube (2) and seals the first flow channel (111) and the second flow channel (21), respectively.

A single-stage water treatment system may include a fine filtration module configured for receiving process material with a high suspended and/or dissolved solids content and for producing a concentrate and a permeate. The fine filtration module may include an elongate housing member, a plurality of tubular membranes arranged within the elongate housing member and comprising elongate tubular members having membranous sidewalls with a selected permeability, a pair of end caps configured for controlling the flow of the process material within the plurality of tubular membranes, and an adjustment mechanism configured to adjust the elongation of the plurality of tubular membranes thereby adjusting the permeability thereof.

A crossflow filter includes a rigid cylindrical inner wall and a rigid cylindrical outer wall inner with an inelastic filter membrane positioned therebetween defining a retentate channel inside the filter membrane and a permeate channel outside the filter membrane. Further, the filter includes transition channels shaped and connected to the inner and outer walls to deliver a flow of fluid from an inlet port to the retentate channel and to capture flow flowing longitudinally along the cylindrical inner and outer walls from both the retentate and permeate channels to respective outlet ports.

A method for forming a ceramic membrane module system includes disposing at least one membrane within a housing, disposing at least one sealing pad adjacent to the membrane, and disposing at least one drive plate assembly adjacent to the at least one sealing pad. The method further includes coupling the at least one drive plate assembly with the housing, applying force to the sealing pad with the drive plate assembly, sealing the capillaries of a membrane end with the at least one sealing pad and forming a seal between the at least one sealing pad and the membrane, and disposing potting material into the housing without plugging more than 15% of the capillaries with the potting material.