An assembly (1) for filtering water comprising: a filter (10) forming a permeable receptacle for fluid to be filtered, an actuating inlet (300) for providing a stream of water, a filter fluid inlet (302) for providing fluid to be filtered to the filter (10), and, a rotatable cleaning structure (20) for cleaning the filter (10), wherein the structure (20) comprises at least one scraper (201) extending along and substantially abutting a first surface (101) of the filter (10), the scraper (201) being rotatable with respect to the first surface (101) of the filter (10), and wherein the structure (20) further comprises at least one rotatable element (250) arranged for receiving the stream of water, the stream of water being receivable in, and filterable by, the filter (10) and wherein the element (250) is rotationally engaged with the scraper (201) such that the stream of water providing a rotational force to the element (250), rotates the scraper (201) with respect to the first surface (101) of the filter.

A rod having a substantially-cylindrical shape with both ends being covered is provided to a lid body, which covers an upper end surface of a case having a bottomed substantially-cylindrical shape, the rod protruding in the case. A first hole is formed in a portion of a side surface of the rod, which is exposed to the inside of the case. Further, an air vent pit (passage) is formed in the lid body, and a second hole is formed in a portion of the side surface of the rod, which is exposed to the inside of the air vent pit. A moving member moves along the rod from a first position at which the moving member does not cover the first hole and a second position at which the moving member covers the first hole.

A rod having a substantially-cylindrical shape with both ends being covered is provided to a lid body, which covers an upper end surface of a case having a bottomed substantially-cylindrical shape, the rod protruding in the case. A first hole is formed in a portion of a side surface of the rod, which is exposed to the inside of the case. Further, an air vent pit (passage) is formed in the lid body, and a second hole is formed in a portion of the side surface of the rod, which is exposed to the inside of the air vent pit. A moving member moves along the rod from a first position at which the moving member does not cover the first hole and a second position at which the moving member covers the first hole.

A multipart fuel filter element includes a cartridge body having a plurality of through bores radially offset with respect to a centerline. An inlet end cap adjacent a first cartridge face includes an inlet aperture centrally aligned with the centerline and a plurality of distribution apertures aligned with and directing fuel to the plurality of through bores. An outlet end cap adjacent a second cartridge face includes an outlet aperture also aligned with the centerline and a plurality of reception aperture that are aligned with the through bores to receive fuel.

A multipart fuel filter element includes a cartridge body having a plurality of through bores radially offset with respect to a centerline. An inlet end cap adjacent a first cartridge face includes an inlet aperture centrally aligned with the centerline and a plurality of distribution apertures aligned with and directing fuel to the plurality of through bores. An outlet end cap adjacent a second cartridge face includes an outlet aperture also aligned with the centerline and a plurality of reception aperture that are aligned with the through bores to receive fuel.

In a preparative separation-purification system for passing a solution containing a target component through a trap column to capture the target component in the column, and for subsequently passing an eluting solvent through the column to elute the captured component and collect it in a container, a dilution passage is merged with a collection passage for sending an eluate from the outlet end of the trap column to the collection container, and a diluting liquid is intermittently introduced through the dilution passage into the collection passage. The diluting liquid lowers the concentration of the target component in the eluate and impedes the deposition of the target component. Thus, clogging of the passage due to the deposition of the target component eluted from the trap column is effectively prevented.

A filter module for a gravity-type water-purifying device including a plurality of plate-shaped filter members, which are in a plate shape having a predetermined area, produce filtered water from raw water introduced from the outside, and are spaced apart from each other in parallel along one direction while one surface of each filter member faces each other at a predetermined; and a filtered-water integrating member for fixing one side of each of the plate-shaped filter members so that the plurality of plate-shaped filter members can be kept spaced apart from each other along one direction while facing each other, and for integrating and discharging the filtered water individually produced from each of the plurality of plate-shaped filter members.

A liquid filter article, including: a housing having an inlet, an outlet, and an adsorbent bed there between, the bed comprising: a first stage having a first adsorbent, the first adsorbent including an activated carbon honeycomb infused with a plurality of zero valent iron nanoparticles (“Fe-AC”); and a second stage having a second adsorbent, the second adsorbent being selected from iron oxide particles supported on activated carbon honeycomb (“FEOX-AC”), iron oxide particles supported on activated alumina honeycomb (“FeOX-AA”), or a combination thereof, wherein the first stage is in fluid communication with the second stage. Also disclosed is a method of using the liquid filter article to remediate heavy metals in water.

A filtering element for the filtration of a fluid medium comprises a rigid porous support of cylindrical shape having a longitudinal central axis (A) and a plurality of channels for the circulation of the fluid medium to be filtered and collection of filtrate on the periphery of the support. The channels are arranged in the support parallel to its central axis central (A) and define at least three filtering zones which are distributed concentrically and separated from each other by a continuous porous zone. The mean thickness of the porous zone (Z.sub.1) closest to the central axis (A) is smaller than the mean thickness of the porous zone (Z.sub.n-1) the closest to the periphery of the support (1) and, in the direction moving away from the central axis (A) of the support towards its periphery, the mean thickness of a porous zone is either identical to the next or smaller.

A filter assembly includes a filter head, a port, a fitting, and a diffuser. The port extends from a portion of the filter head and defines a channel for fluid to flow into or out of the filter head. The fitting first end is attachable to the port and the fitting second end is attachable to a filtration system component. The diffuser is positionable within the channel of the port and comprises an inner surface and an outer surface. The inner surface defines an inner conical hollow region that extends at a nonzero angle between the inner conical hollow region first end and the inner conical hollow region second end such that a first inner diameter of the diffuser at the inner conical hollow region first end is smaller than a second inner diameter of the diffuser at the inner conical hollow region second end.