Abstract: A portable water-purifying pouch is provided that includes a pouch-shaped body comprising an inlet part, through which water to be treated is introduced, and an outlet part, from which drinking water obtained by filtering the water being treated is discharged and a pouch-shaped filter medium, which is provided inside the body so as to hold and filter the water being treated, which has been introduced into the body, and comprises a fiber web layer having the structure of a three-dimensional network formed of nanofibers. The portable water-purifying pouch allows a large flow rate of drinking water to be obtained in a short time while filtering, with significantly superior efficiency, foreign substances such as bacteria and harmful germs in the water being treated merely by self-weight or by lightly applying pressure with a hand to the water being treated.

Abstract: A system for measuring at least one fluid characteristic at various stages within a sorbent system that has a sorbent cartridge that has at least one material layer and at least one fluid passageway in at least one location in the sorbent system to provide a diverted sample stream from the various stages. At least one fluid characteristic of the diverted sample stream is measured.

Abstract: Various embodiments for a drain debris straining assembly are described, where the drain debris straining assembly can be positioned inside a drain to collect hair and other debris. A drain debris straining assembly in accordance with an embodiment of the present application includes a basket assembly. The basket assembly includes a basket body surrounding a hollow core and at least one opening configured to filter fluid to entrap debris. The basket assembly further includes a flexible rib configured to compress against an internal diameter of a drain flange to form a seal between the basket assembly and the drain flange. The drain debris straining assembly may also include a pop-up assembly having an interference ridge sized and positioned to contact at least one inner wall of the basket assembly to retain a vertical position of the pop-up assembly relative to the basket assembly.

Abstract: Two-dimensional material based filters, their method of manufacture, and their use are disclosed. The filters may include at least one active layer disposed on a porous substrate. The at least one active layer may include intrinsic and/or intentional formed pores. In some embodiments, the flow resistance of the porous substrate may be selected to limit flow through defects and intrinsic pores in the at least one active layer.

Abstract: A parallel accelerated solvent extraction system includes a plurality of extraction cells, a temperature controlled zone for maintaining the plurality of extraction cells at a desired temperature, a plurality of collection vessels, each fluidly coupled to a respective extraction cell via a flow restrictor configured to maintain a pressure, a solvent pump for supplying extraction solvent to the plurality of extraction cells, and a switching valve for sequentially directing extraction solvent flowing from the solvent pump to respective ones of the plurality of extraction cells. A method of parallel accelerated solvent extraction is also disclosed.

Abstract: An article having a nanoporous membrane and a nanoporous graphene sheet layered on the nanoporous membrane with the nanoporous membrane and the nanoporous graphene sheet in direct contact. A method of: depositing a layer of a diblock copolymer onto a graphene sheet, etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article having a nanoporous graphene sheet and a nanoporous layer of a polymer, and removing the nanoporous layer of a polymer.

Abstract: A porous support-zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided on, wherein the zeolite membrane contains a zeolite having a microporous structure of 8-membered oxygen ring or less, and a molar ratio of SiO2/Al2O3 in the zeolite membrane surface is larger by at least 20 than a molar ratio of SiO2/Al2O3 in the zeolite membrane itself, or a water adsorption of the porous support-zeolite membrane composite at a relative pressure of 0.8, as determined from a water vapor adsorption isotherm of the porous support-zeolite membrane composite, is at least 82% of a water adsorption of the porous support-zeolite membrane composite under the same condition as above after one-week immersion of the porous support-zeolite membrane composite in an aqueous 90 mass % acetic acid solution at room temperature.

Abstract: A filtering apparatus has filtering elements (11) in a filter housing (1), a filter inlet (7) and a filter outlet (9). During filtration, one of the filter elements (11) can be back-flushed by a back-flushing device (45, 49), having a pressure control device (19). The pressure control device has a hydraulic accumulator (19), with a fluid chamber (47) fillable during filtration with clean fluid and connectable for back-flushing via a back-flushing guide (45) to the clean side (29) of the filtering element (11) to be cleaned. For back-flushing, a further fluid chamber (48) of the hydraulic accumulator (19) is subjected to gas pressure. By resultant movement of a separator (59) of the hydraulic accumulator (19), the filling amount of the clean fluid is dispensed for the back-flushing.

Abstract: A filtration filter includes a porous metal film that filters out a filtration object contained in a fluid, and a support base member that is disposed on at least one main surface of the porous metal film and that supports the porous metal film. The support base member has an opening that exposes a part of the porous metal film. An inner peripheral surface of the opening has undulations formed along its periphery.

Abstract: A device (1) for purification of water driven by gravity through a purification unit between an upper dirt water container (2) and a lower clean water tank (3). A backwash system may be integrated, the system comprising a receptacle (8) for accumulation of the backwash water to prevent consumption thereof by mistake.

Abstract: Disclosed are a ceramic membrane for water treatment using oxidation-treated SiC and a method for manufacturing the same. An object of the present invention is to manufacture a ceramic membrane for water treatment, which can be sintered at a low temperature of 1,050° C. or less, in which a SiO2 oxide layer formed during an oxidation process induces volume expansion so as to prevent defects due to the contraction of a coating layer during general sintering. The ceramic membrane for water treatment using the oxidation treated SiC includes a porous ceramic support layer; and a SiC layer formed on the porous ceramic support layer and including SiC particles on which a SiO2 oxide layer formed on a surface thereof.

Abstract: A fuel filter comprises a filter screen, a heating element, and a coating. The filter screen includes a first hollow member. The heating element is disposed within the first hollow member. The coating is formed of a thermally conductive, electrically insulating ceramic in a hydrodynamic filtering pattern surrounding the filter screen but having a different shape than a shape of the hollow member.

Abstract: A water treatment system having an inlet for receiving water to be treated and a manifold that defines a pair of fluid streams communicating with the inlet. A valve module carried by the manifold controls the communication of water at the inlet with treatment cartridges and with a common outlet. The valve module includes a valve member that is movable between two positions such that, in one position, the valve member communicates each fluid stream with an associated cartridge and, in a second position, communicates the inlet with the common outlet and bypasses the cartridges. A remotely mounted cartridge depletion indicator is provided that includes a linkage that is magnetically coupled to a stem assembly located within a flow metering mechanism. Movement in the internal stem assembly is transferred via the magnetically coupled external linkage to a cartridge depletion indicator visible to the operator.

Abstract: A high efficiency reactor tank is designed to remove pollutants from domestic wastewater. Embodiments of the tank can include at least one integrally-molded internal wall that divides the tank into at least two chambers and which can be a one-piece tank with at least one top riser. The internal wall can be integrally-molded within the tank as well as separately formed and inserted into the tank. The tank can be roto-molded (i.e., rotationally-molded) using plastic or cast/made from concrete, steel, fiberglass and/or similar structural materials. The reactor tank can be applied to remove suspended solids, BOD, ammonia, nitrate, TKN, phosphorus, pathogens and other pollutants from the wastewater.

Abstract: Three dimensional filter devices and devices are provided herein. An example substrate includes a primary inlet boundary and a primary outlet boundary, as well as a plurality of filter rows that include microstructure filter members that remove particulate matter from a fluid flowing across or through the substrate; the fluid entering through the inlet boundary and exiting through the outlet boundary. Each of the microstructure filter members includes a secondary inlet channel and a secondary outlet channel that couple to adjacent microstructure filter members.

Abstract: An article having a nanoporous membrane and a nanoporous graphene sheet layered on the nanoporous membrane. A method of: depositing a layer of a diblock copolymer onto a graphene sheet, and etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article having a nanoporous graphene sheet and a nanoporous layer of a polymer. A method of: depositing a hexaiodo-substituted macrocycle onto a substrate having a Ag(111) surface; coupling the macrocycle to form a nanoporous graphene sheet; layering the graphene sheet and substrate onto a nanoporous membrane with the graphene sheet in contact with the nanoporous membrane; and etching away the substrate.

Abstract: The present invention provides a composite separation membrane with improved separation performance, particularly with an increased permeation flux. The composite separation membrane of the present invention includes a porous support (2) and a separation functional layer (1) formed on this support (2). The separation functional layer (1) is a polyamide membrane having a “double-folded structure” including a first layer portion (11) with a plurality of projections (15a, (15b . . . ) and a second layer portion (12) that covers at least one or some (15c and 15d) of these projections. Some projections (15a and 15b) of the first layer portion (11) extend upward and branch to form the second layer portion (12). There is a vacant space (13) between the first layer portion (11) and the second layer portion (12).

Abstract: Disclosed are hydrophilic porous PTFE membranes comprising PTFE and an amphiphilic copolymer of the formula (I): wherein Rf, Rh1, Rh2, Y, m, n, and o are as described herein. Also disclosed are a method of preparing hydrophilic porous PTFE membranes and a method of filtering fluids through such membranes.

Abstract: A filtration assembly for removing solid particulate matter and contaminants from motor oil including, without limitation, motor oil used in internal combustion engines. A housing having a removable cap defines an inner chamber. Stacked sheets of filter materials, interspersed between pressure plates, are installed within the chamber. Pressurized fluid is introduced into the inner chamber; the fluid pressure acts on the pressure plates and compresses the filter materials. As the pressurized fluid passes through the filter materials, solids and particulate matter are filtered from the fluid stream by the filter materials.

Abstract: Membranes having parallel channels in a surface of the membranes, wherein the channels have side walls having rough surfaces; filters and devices including at least one membrane, and methods of making and using the membranes, are disclosed.