A separator prevents microplastics from entering the environment by regenerating the pressure consumption of filters for removing microplastics in effluent from any source but in particular removing microfibers from washing machine wastewater. The separator separates microplastics from an effluent and includes: a chamber with an inlet and an outlet, a sieve structure forming a permeable barrier between the inlet and the outlet to filter the effluent, the sieve structure thus having an inlet side for unfiltered effluent and an outlet side for filtered effluent, wherein a bypass conduit is provided between the inlet and the outlet to provide an alternative route for effluent in the event that the flow of fluid is impeded.

An air vent hole includes a substantially columnar hole main body portion, a first hole portion formed on the upper side of the hole main body portion, and a second hole portion formed on the lower side of the hole main body portion. Each of the first hole portion and the second hole portion partly has, in a cross section of the hole portion substantially orthogonal to a first direction that is a longitudinal direction of the hole main body portion, a cross-sectional area smaller than a cross-sectional area of a cross section of the hole main body portion substantially orthogonal to the first direction. A float inserted into the air vent hole is movable between a position where the float occludes the first hole portion and a position where the float occludes the second hole portion. The float occludes the first hole portion under the weight of the float. However, the float is pushed up by air. Furthermore, the float is formed of a material having a smaller specific gravity than a liquid to be filtered. Thus, the float is pushed up by the liquid to occlude the first hole portion.

Provided herein are methods, devices, and systems for processing of carbonaceous compositions. The processing may include the manufacture (or synthesis) of oxidized forms of carbonaceous compositions and/or the manufacture (or synthesis) of reduced forms of oxidized carbonaceous compositions. Some embodiments provide methods, devices, and systems for the manufacture (or synthesis) of graphene oxide from graphite and/or for the manufacture (or synthesis) of reduced graphene oxide from graphene oxide. Some embodiments provide methods, devices, and systems for filtering graphene oxide, graphene, or reduced graphene oxide.

The present invention is directed to methods and apparatus for screening a pulp suspension where the pulp suspension is directed to a screening space, where a part of the fibres in the pulp is screened using a drum-type rotor. The residual pulp suspension is then directed to a dilution space where it is mixed with recirculated pulp flow and the pulp suspension in the dilution space will be screened. Resulting preliminary reject flow is directed to a mixing space where it mixes with a dilution flow. The recirculated pulp flow is then directed back to the dilution space.

The invention discloses a normal flow filtration cassette (1) stackable with like cassettes, said cassette comprising: at least three port conduits (2,3,4); an inlet chamber (5) in fluid communication at least with a first of said port conduits (2); an outlet chamber (6) in fluid communication at least with a second of the port conduits (3); and a filter medium (7) between said inlet chamber and said outlet chamber, wherein said at least three port conduits (2,3,4) are each in fluid communication with a corresponding inlet port (8,9,10) and are each in fluid communication also with one of a corresponding set of outlet ports (11,12,13), and wherein each of said set of inlet ports (8,9 10) is arranged to cooperate with a respective complementary outlet port of an adjacent like cassette when in a stack and said outlet ports (11,12,13) are each arranged to cooperate with a respective complementary inlet port of a further adjacent like cassette when in a stack.

The invention discloses a normal flow filtration cassette (1) stackable with like cassettes, said cassette comprising: at least three port conduits (2,3,4); an inlet chamber (5) in fluid communication at least with a first of said port conduits (2); an outlet chamber (6) in fluid communication at least with a second of the port conduits (3); and a filter medium (7) between said inlet chamber and said outlet chamber, wherein said at least three port conduits (2,3,4) are each in fluid communication with a corresponding inlet port (8,9,10) and are each in fluid communication also with one of a corresponding set of outlet ports (11,12,13), and wherein each of said set of inlet ports (8,9 10) is arranged to cooperate with a respective complementary outlet port of an adjacent like cassette when in a stack and said outlet ports (11,12,13) are each arranged to cooperate with a respective complementary inlet port of a further adjacent like cassette when in a stack.

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.

A chip conveyor includes: a cover body; a guide plate configured to guide chips, which are conveyed inside the cover body, so as to be directed from a chip receiving position toward a chip discharging position; a case attached to the cover body and having an internal space provided therein; and a float switch configured to detect, based on a coolant flowing from inside the cover body into the internal space, that a liquid level of the coolant inside the cover body is equal to or greater than a prescribed liquid level. The cover body includes a first space and a second space that are partitioned from each other by the guide plate. The cover body is provided with: a first opening allowing communication between the first space and the internal space; and a second opening allowing communication between the second space and the internal space.

A first discharge tube having a substantially cylindrical shape with openings at both ends is inserted through an outflow hole of a filter case and provided protruding toward the bottom surface of the tank. A second discharge tube having a substantially cylindrical shape is provided so as to cover the first discharge tube. The second discharge tube includes a first end that comes into contact with a bottom surface of the filter case, and is provided protruding from the bottom surface of the filter case toward the bottom surface of the tank. A tip end of the second discharge tube is covered by a bottom surface cover, and a plurality of discharge holes are formed in a region near an upper end of a side surface.