The present invention relates to a filtration device being adapted for continuous vibration and pressure driven filtration. Said filtration device comprises a filter module which comprises at least one tubular semipermeable membrane element, said module further comprises a drain area for permeate, an outlet for permeate, an inlet for feed fluid and an outlet for retentate; said module further comprises one or more flexible volume chambers being filled with gas and in close contact with but separated from the internal module of the filter module through a flexible wall; said filtration device comprises a vibration motor being adapted to provide a vibrating motion to the device.

Described are filtration membranes that include a porous fluoropolymer membrane and thermally stable ionic groups; filters and filter components that include these filtration membranes; methods of making the filtration membranes, filters, and filter components; and method of using a filtration membrane, filter component, or filter to remove unwanted material from fluid.

A fluid circuit includes a plurality of tubing segments and a plurality of operative components. Each tubing segment includes i) a non-conductive polymer portion defining a fluid passageway and ii) one or more interior conductive fluoropolymer stripes extending axially to the ends of each of the respective tubing segments. Each operative component includes a conductive fluoropolymer that extends between a plurality of tubing connector fittings forming a part of the fluid circuit, wherein each of the tubing connector fittings conductively connect the respective conductor of the operative component to the interior conductive fluoropolymer stripes of the tubing segment to provide a path to ground that extends through each operative component and each tubing segment.

Described are filtration membranes that include a porous fluoropolymer membrane and thermally stable ionic groups; filters and filter components that include these filtration membranes; methods of making the filtration membranes, filters, and filter components; and method of using a filtration membrane, filter component, or filter to remove unwanted material from fluid.

CNT membrane filter cartridges and residential and commercial filtration applications for CNT membrane filter cartridges. CNT filtration can create both a high purity water stream, as well as a concentrated feed stream. CNT membrane filter cartridges can improve the mechanics of water transport, while high selectivity is achieved without sacrificing permeability. This benefit translates to allowing ultra-filtration technology to be implemented within a smaller footprint or reducing the need for driving energy.

A filter medium is provided. A filter medium according to an embodiment of the present invention comprises: a fiber web layer of a three-dimensional network structure including nanofiber; and a hydrophilic coating layer which covers at least a part of the outer surface of the nanofiber. According to this, a flow rate can be remarkably increased due to the improved hydrophilicity of the filter medium. Also, as the improved hydrophilicity is maintained for a long period of time, the lifespan can be remarkably prolonged. Furthermore, since the modification of a porous structure of the filter medium is minimized during the process of hydrophilization so that the initially designed physical properties of the filter medium can be exhibited in its entirety, the filter medium having chemical resistance, excellent water permeability and durability can be variously applied in the water treatment field.

A filter module includes: a center tube having at least one purified water inlet on an outer peripheral surface thereof and provided at one end thereof with a connection portion having a purified water outlet formed therein; a reverse osmosis filter wound on the center tube, the reverse osmosis filtering raw water introduced through one end thereof and discharging the filtered raw water to the purified water inlet; and a post-treatment filter disposed inside the center tube and allowing purified water introduced into the center tube to be post-treated by passing through the post-treatment filter, wherein the center tube includes: a first tube member provided at one end thereof with the connection portion and having a first post-treatment filter mounting slot formed therein; and a second tube member detachably connected to the other end of the first tube member and having a second post-treatment filter mounting slot formed therein.

A fluid circuit (160) defining a flow path for a fluid from a fluid supply (152) toward a process stage (156). The fluid circuit may include a plurality of operative components (168) including a body portion (182) and a plurality of tubing connector fittings (186). The operative components may be connected by a plurality of tubing segments (164). Each body portion may include a non-conductive fluoropolymer portion and an outer conductor (234) that extends between each of the plurality of tubing connector fittings and that is unitary with the non-conductive fluoropolymer portion. The plurality of tubing segments may include a non-conductive fluoropolymer tubing portion (187) and an axial strip (188) of conductive polymer. The outer conductor of each body portion conductively connected with tubing segments connected thereto. Each of the connectors may include a bridging component (262) for conductively connecting the respective outer conductor of the body portion to the strip of conductive polymer of the connecting tubing segments.

A pleated filter including a porous fluoropolymer filter membrane and a supporting net positioned directly adjacent to the filter membrane. In various embodiments the supporting net is placed on at least one of an outflow side of the filter membrane and an inflow side of the filter membrane. In one or more embodiments, the supporting net includes a mesh of non-conductive fluoropolymer threads and conductive fluoropolymer threads. The conductive fluoropolymer threads in certain embodiments extend substantially parallel to pleats of the filter membrane and the supporting net.

Spacers for filtration applications are provided. A spacer for a filtration device comprises a substrate comprising a cyclic polyolefin. The substrate comprises a plurality of through-holes for filtering particles having an average particle size of greater than 50 ?m. Filtration assemblies, filtration devices, and related systems and methods are also provided.