Abstract: An indefinite form filter medium layer includes filter media configured to capture suspended solids contained in a liquid to be treated and filtering aids configured to allow the suspended solids contained in the liquid to be treated to pass through the filtering aids. The filter media and the filtering aids are mixed together and the liquid to be treated is filtered by being passed through the filter media and the filtering aids as mixed together. A filter device includes the indefinite form filter medium layer and a filter tank configured to accommodate the indefinite form filter medium layer.

Abstract: A filter medium of the present invention includes a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a volume of fine pores by a BJH method of 0.3 cm3/g or more, and a particle size of 75 ?m or more, alternatively, a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a total of volumes of fine pores having a diameter of from 1×10?9 m to 5×10?7 m, obtained by a non-localized density functional theory method, of 1.0 cm3/g or more, and a particle size of 75 ?m or more.

Abstract: An improved oil filter, for use with an internal combustion engine, comprises a hollow filter housing defining a chamber therein and having an inlet and an outlet with a flow path therebetween; a mechanically active filter member disposed inside the filter housing in the flow path; and a chemically active filter member disposed inside the filter housing in the flow path. The chemically active filter member comprises a plurality of composite oil additive pellets. The plurality of pellets is interconnected to form a substantially integral permeable member, and the substantially integral permeable member is impregnated with an alkaline composition. The alkaline composition is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine.

Abstract: The present invention relates to a filtering device, facilitating the filtration of media to be cleaned, and also the cleaning of the filter material or filter elements in a filtering device. Said filtering device comprises at least one filter element arranged in a housing, with at least one filter material and at least one rebound element. The invention further relates to a cleaning device, comprising at least one nozzle, which is arranged perpendicularly and/or angularly in relation to the filter element for removing a filter cake on the filter material, wherein the cleaning medium at least partially penetrates the filter material during cleaning. The rebound element deflects the cleaning medium at least partially for renewed penetration through the filter material, while at least partially removing the filter cake at the same time.

Abstract: A pervious concrete slab is pre-cast in a reusable mold or form to define at least one keyway configured and arranged to engage with a complementary keyway of another similar pre-cast pervious concrete slab. The concrete slab is then cured in a controlled environment, transported to an installation site, and installed.

Abstract: The present invention generally relates to porous ceramic material and to methods of making and using the material. More particularly, the invention relates to methods of forming ceramic materials by depositing material, using atomic layer deposition, onto a sacrificial substrate and to ceramic materials having controlled wall thickness, relatively large pores, and high surface area by weight.

Abstract: A nanoporous ceramic membrane and preparation method thereof is provided. The nanoporous ceramic membrane is prepared by halloysite nanotubes (HNTs), and its porosity is between 35% to 85%. This method comprises steps as following: HNTs and polymers with a certain ratio are dispersed in organic solvent, and HNTs/polymer composite fibers are prepared through electrospinning method; after the HNTs/polymers composite fibers are laminated, they are sintered at high temperature in a certain or vacuum atmosphere, and a nanoporous ceramic membrane is obtained. Ceramic membrane prepared by this method is corrosion resistant, thermal resistant, and have large specific surface area, it may widely applied in the field of filtration, catalyst carrier and purification of high-temperature gas, etc.

Abstract: The manufacturing method of nano porous material according to an example of the present invention comprises: a preparing step to prepare a substrate; and a manufacturing step to prepare nano porous material with a network structure in which nanoclusters are connected to each other using plasma deposition through over 300 mTorr of working pressure. Using the manufacturing method, it is possible to form a nano porous material having desired surface energy without formation of additional coating layer as well as pores distributed both within and on the surface of the nano porous material with only one deposition process.

Abstract: A filter unit for treating water includes at least two ceramic filter membranes; and a mount for the at least two ceramic filter membranes, wherein the ceramic filter membranes are formed in the shape of plates and each have a filter-active outer side and at least one internally lying discharge channel for filtered water, the mount has a collection space, via which water leaving the discharge channels can be drained, and the mount has at least two sockets that liquid-tight fix the at least two ceramic filter membranes in which they are fixed so that the internally lying discharge channels are in communicating connection with the collection space and at least the part of the mount having the sockets for the ceramic filter membranes is a shaped part formed in one piece.

Abstract: A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.

Abstract: A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.

Abstract: A carbon membrane structure includes: a cylindrical porous support body provided with a plurality of cells extending from one end face to the other end face and functioning as fluid passages, and a carbon membrane disposed on the surface side of the cells formed in the porous support body. The plurality of cells are formed so that a distance from one cell to another cell adjacent to the one cell in a cross section perpendicular to a cell extension direction of the porous support body 1 is 0.60 mm or more. The carbon membrane structure shows very excellent separation performance by the carbon membrane.

Abstract: The problem to be solved by the present invention is to provide a filter medium for a water treatment filter having contradictory characteristics, that is, hydrophilicity and chemical resistance, and a long life, and to provide the production method thereof. A filter medium for a water treatment filter according to the present invention is characterized in comprising a porous base material having a hydrophilic coating layer; wherein the hydrophilic coating layer has a cross-linked hydrophilic polymer and a high electron density part; a hydrophilic polymer in the cross-linked hydrophilic polymer is cross-linked with an aliphatic saturated hydrocarbon group which may contain one or more functional groups selected from a group consisting of an ether group, a hydroxy group and an amino group; the high electron density part has ? electrons; and the high electron density part is covalently bonded to the cross-linked hydrophilic polymer.

Abstract: A filtration and dispensing system that is particularly suitable for underdeveloped parts of the world is provided for storing, filtering, and dispensing rainwater, surface water, or groundwater. The system includes a bank of ceramic filters, a water retention container for holding water to be dispensed by the system, and at least one header tank to which water supplied from the water retention container is fed. A pump is utilized to withdraw water from a lower portion of the water retention container and supplied to the header tank. The withdrawn water is distributed by way of piping from the header tank to individual ceramic filters in the bank of ceramic filters, and a collection tank receives filtered water discharged from the bank of ceramic filters. Trickle feed nozzles or other discharge elements are used to discharge the filtered water from the collection tank for use.

Abstract: Water filtration media having a charged material affixed directly to binder material used in the fabrication of the filter media. A microbiological interception enhancing agent is added to the binder directly. The media having a charged material and a microbiological interception enhancing agent both affixed directly on a binder material is then combined with core filter media and prepared as a filtration media. A filter is prepared from the treated filter media.

Abstract: A lubrication system having an oil filter modified to replace or supplement the performance of lubricant additives that may be used within an internal combustion engine to increase the performance of a lubricant. The formulation of the lubricant is changed in accordance with the chemicals placed in the oil filter. For example, when the oil filter contains a strong base, the lubricant concentration of detergent will decrease, in some cases to zero, while the dispersant concentration in the lubricant will increase. The resultant closed system allows the oil drain intervals to be significantly extended.

Abstract: A ceramic filter comprising: (a) from about 75% to about 95% by weight of diatomaceous earth; (b) from about 10% to about 20% by weight of a flux; and (c) from about 0.03% to about 0.4% by weight of a metallic compound; the percentages by weight being percentages by weight of the ceramic filter.

Abstract: A crystalline polymer microporous membrane, which contains: a microporous film formed of a crystalline polymer, which has a plurality of pores; and a hydrophilic polymer containing a hydroxyl group, which covers exposed surfaces of the microporous film, wherein the plurality of pores have a larger average pore diameter at a first surface of the film than the average pore diameter at a second surface of the film, and the average pore diameter of the pores continuously changes from the first surface to the second surface.

Abstract: A ceramic water purifying device is provided. The device includes a silver treated packed particle bed in one embodiment. The device may also include feldspar or bottled glass.

Abstract: This invention relates to articles of high permeability and flux. Particularly useful in dialysis made from filaments produced from a composition of polysulphones and Vitamin ETPGS. This invention also includes a process for producing such articles.

Abstract: A method of making a porous membrane is disclosed. One such method optionally includes: forming a plurality of pillars in an array form over a substrate; and forming a layer with a mixture of a porous material precursor and a surfactant over the substrate. The method optionally includes removing the pillars to leave cavities in the layer; filling the cavities in the layer with a cavity filler; and removing the surfactant from the layer. The porous membrane can be used as, for example, a sieve for separating molecules from a chemical reaction.

Abstract: An air filtration apparatus for use in horticultural applications provides, in the exemplary embodiment, a coupling portion configured for engagement about an un-filtered air source in fluid communication with an enclosed plant growing area. The coupling portion defines an opening extending therethrough. A support portion is integral about a free end of the coupling portion. A reticulated foam piece is coupled to, and configured for covering, an opposing end of the support portion. The opposing end of the support portion has a diameter relatively larger than that of the coupling portion. Thus, with the coupling portion engaged about the un-filtered air source, the apparatus is capable of removing or trapping impurities—such as dust, dirt, pollen, mold spores, insects, pests, etc.—as the un-filtered air travels into the opening of the coupling portion and through the reticulated foam piece, thereby keeping said impurities out of the associated plant growing area.

Abstract: A ceramic pervaporation membrane and a ceramic vapor-permeable membrane where the total aperture length of discharge channels parallel to the channel direction of water collection cells is at least 10% of the length of filtration cells and where the ratio m/n of the number m of rows of filtration cells to the number n of rows of water collection cells is between 1 and 4 have a high water permeation rate and a high separation coefficient.

Abstract: Provided are an anti-microbial matrix and filtration systems containing the same. The matrix comprises a surface-modified inorganic component and a polymeric binder comprising particles having an irregular, convoluted surface. The surface-modified inorganic component comprises a reaction product of an anti-microbial component and an inorganic component. The anti-microbial component comprises a quaternary ammonium salt containing an epoxide group. A covalent bond is, for example, between the quaternary ammonium cation and a hydroxyl group of the inorganic component. The quaternary ammonium salt can be poly(methyldiallylamine epichlorohydrin). Further, the quaternary ammonium salt can have the formula according to I: (Formula I), wherein n is in the range of 5 to 24. The inorganic component can be diatomaceous earth. The polymeric binder can comprise ultra high molecular weight polyethylene (UHMW PE). Methods of making and using the same are also provided.

Abstract: The present invention provides a method for producing a non-woven fiber fabric by spinning a molten polymer. Thus, a non-woven fiber fabric which is substantially free from a solvent, different from the case of spinning a polymer solution, but yet has an extremely small fiber size (diameter of 0.5 ?m or less) is provided. The non-woven fiber fabric comprises an olefin-based thermoplastic resin fiber, said fiber having an average fiber size of 0.01-0.5 ?m, and said non-woven fiber fabric having an average pore size of 0.01-10.0 ?m and being free from a solvent component.

Abstract: Product formed from a ceramic material, at least part of the said product not being formed from amorphous silica and including pores and satisfying the following criteria (a), (b) and (c): (a) at least 70% by number of the said pores are frustoconical tubular pores extending substantially parallel to each other in a longitudinal direction; (b) in at least one cross-section plane, the mean size of the cross sections of the said pores is greater than 0.15 ?m and less than 300 ?m; (c) in at least one cross-section plane, at least 50% by number of the pores have a convexity index Ic of greater than 87%, the convexity index of a pore being equal to the ratio Sp/Sc of the surfaces Sp and Sc delimited by the perimeter and by the convex envelope of the said pore, respectively.

Abstract: Novel polymer monolith structures and methods for fabrication of the same are disclosed in a variety of embodiments. In an illustrative embodiment, a method includes forming a pattern of features on a wafer, thereby forming a patterned wafer; forming a polymer layer on the patterned wafer; using a first plasma to remove at least a portion of the polymer layer; and using a second plasma to etch off at least a portion of the pattern of features, thereby providing a structured polymer monolith. The pattern of features may include an array of pillars. Providing the structured polymer monolith may include providing a structured polymer monolith filter having an array of channels formed by the pillars. The structured polymer monolith may be composed of polypropylene.

Abstract: The invention relates to a filter unit for purification of impure water, which could be seawater intended for ballast water, pool water, waste water or the like. The purification is performed by means of filter modules comprising filter means with dead end filter elements of a sintered material, and the filter unit facilitates alternating backwashing of the filter means at the same time as the filter unit may perform filtration of the impure water. The invention likewise relates to use of a dead end filter element in a de-gassing version, the filter element comprising a top end, a bottom end and a plurality of substantially parallel arranged channels with blockings in different ends.

Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.

Abstract: A method for producing a carbon membrane of the present invention is a production method where a carbon membrane obtained by subjecting a carbon-containing layer to thermal decomposition in an oxygen inert atmosphere while sending a gas mixture containing an oxidizing gas thereinto is thermally heated. The carbon membrane is subjected to a heating oxidation treatment with controlling the ratio of the flow rate of the gas mixture to the areas of the carbon membrane to 0.5 cm/min. or more to control (temperature ° C.)2×time (h)/10000, which is the relation between the temperature of the gas mixture and the flow time, to 9 to 32. This enables to obtain a carbon film which selectively separates alcohols having 2 or less carbon atoms from a liquid mixture of the alcohols having 2 or less carbon atoms and organic compounds having 5 to 9 carbon atoms.

Abstract: Fine fiber products including fiber webs, as well as related assemblies, systems and methods, are described. In some embodiments, fiber webs described herein may include fine fibers and relatively low amounts of degraded polymer formed during a fiber extrusion process. The fiber webs may be used for filter media applications.

Abstract: The invention provides a sintered ethylene polymer filter that is free from molding unevenness or defects and has ultrafine and uniform filter pore diameters. An ethylene polymer composition including an ethylene polymer with a specific shape and specific properties and an antistatic agent with a specific form is used as a material for a sintered filter. According to such a composition, the ethylene polymer particles achieve enhanced fluidity when being placed into a sintering mold. Thus, the composition gives a sintered filter that has an ultrafine pore diameter and a narrow pore diameter distribution and is free from molding unevenness or defects.

Abstract: Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units, such as breather caps. Such filter units can be placed in the stream of a mobile fluid and can remove a particulate and/or fluid mist load from the mobile stream. The unique combination of media fiber, bicomponent binder fiber and other filtration additives and components provide a filtration media having unique properties in filtration applications.

Abstract: The invention relates to a filter element consisting of a molded body of porous concrete, which element is arranged in the water stream of a purification system. In particular, the filter element (10) is a molded pervious concrete layer arranged as a partition between a lower compartment (9) and an upper compartment (11) of a treatment chamber (8), wherein the water inlet (12) opens into the lower compartment (9) and a water outlet (17) issues from the upper compartment (11). The pervious concrete filter layer may contain one or more additives to enhance adsorption of pollutants, such as heavy metal ions, phosphorous, hydrocarbons or other target soluble pollutants.

Abstract: The present invention has its object to provide a direct hemoperfusion adsorber packed with an adsorbent made by using a water-insoluble carrier having a relatively readily available particle size distribution, with water-insoluble microparticles having been removed therefrom, without needing any special granulation apparatus or coating apparatus, and method of obtaining a direct hemoperfusion adsorbent having water-insoluble microparticles removed therefrom.

Abstract: A lightweight previous cellular concrete is provided. The concrete has an internal structure comprising interconnected channels, resulting in a permeability K value of less than about 1×10?5, and as low as about 1. The cellular concrete has a density range of between 10 to about 100 pounds per cubic foot, with a compressive strength of between about 10 to about 1000 psi.

Abstract: One exemplary embodiment can be an apparatus for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon. The apparatus can include: a first drier and a second drier adapted to receive a fluid including at least one reactant; and a reaction zone communicating with the first drier to receive the fluid including at least one reactant and with the second drier to receive the regenerant. Generally, the first drier operates at a first condition to dry the fluid including at least one reactant and the second drier operates at a second condition during regeneration with a regenerant. The regenerant is displaced from the drier using a down-flow regenerant displacement assembly.

Abstract: A liquid filter assembly including a first liquid filter element adapted to filter particles larger than a first size; a second different liquid filter element adapted to filter particles larger than a second size; a housing having the first and second liquid filter elements therein. The second size is smaller than the first size. The housing forms a first liquid flow path having the first liquid filter element therein, and a second liquid flow path having the second liquid filter element therein. The second filter element comprises a formed porous polymer member.

Abstract: A filtration module comprising at least one membrane sheet comprising a plurality of capillary channels in parallel arrangement with each other and which are in fluid communication with a header.

Abstract: The present invention relates to a process for producing a nanoporous foam, said process comprising providing a monomeric component (A) comprising a polyfunctional isocyanate (A1) and a solvent (C), and contacting said monomeric component (A) with water vapor. The present invention further comprises a nanoporous foam obtainable by such a process and also a nanofoam composite obtainable by applying said monomeric component (A) to a carrier (B) before the step of contacting with water vapor. The nanofoam composite is useful as insulant for thermal or acoustical insulation, as filtering material or as catalyst carrier.

Abstract: The filter device 10 according to the present invention is a device for filtering a polyolefin resin composition containing a polyolefin ingredient, wherein the device comprises a main body 10a having a flow passage 10b, a sintered metal filter 13 having a filtration accuracy of 1 to 100 ?m, a wire netting 14a having a line diameter of 0.01 to 0.25 mm and abutting the sintered metal filter 13 on one side thereof, and a supporting member 15 having a thickness of 10 to 100 mm and having a plurality of openings 15d with an aperture ratio of 30 to 60%; and the sintered metal filter 13, wherein the wire netting 14a and the supporting member 15 are disposed in this order from the upstream to the downstream of the flow passage 10b; and the sintered metal filter 13 is fixed to the main body 10a through the seal member 18.

Abstract: A cartridge for treating water capable of releasably engaging a water treatment device. The cartridge includes a housing, an inlet for introducing untreated water into the cartridge, an outlet port for egress of treated water from the cartridge, and a treatment media for treating untreated water that is in fluid communication with the inlet and the outlet port. The cartridge includes a first tube and a second tube, wherein each of the tubes comprise an inside surface, an outside surface, a proximal end, and a distal end, where the inside surface and/or the outside surface is a sealing surface. The first tube extends from the housing and surrounds the outlet port. At least a portion of the first tube or the second tube surrounds the other such that a gap is formed between the first tube and the second tube.

Abstract: The present invention relates to a titanium oxide porous particle for blood purification, which includes a titanium oxide, in which when the titanium oxide porous particle is measured by an electron spin resonance measurement at a temperature of 10 K, a signal at a g value of around 1.96 is present, the signal being divided into two signals representing a component g1 parallel to a axis of symmetry and a component g2 vertical to the axis of symmetry, and a signal at a g value of from 2.003 to 2.004 is not substantially present.

Abstract: This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web.

Abstract: A method for filtering molten magnesium or magnesium alloys is provided. The method includes the steps of: providing an organic foam; impregnating the organic foam with a slurry comprising metal particles; heating the impregnated organic foam to a temperature sufficient to volatilize the organic foam thereby forming a porous metal foam comprising no more than 0.5 wt % nickel; sintering the porous metal foam; passing molten magnesium or magnesium alloy through the porous metal foam thereby forming purified molten magnesium or magnesium alloy; and cooling the purified molten magnesium or magnesium alloy.

Abstract: The present invention provides porous barrier compositions comprising color change indicators and methods of making and using the same.

Abstract: A porous object comprising a three-dimensional network skeleton of a cured epoxy resin and having interconnecting pores, characterized in that the three-dimensional network skeleton forms a non-particle-aggregation type porous object constituted of a three-dimensional branched columnar structure, the proportion of aromatic-ring-derived carbon atoms to all the carbon atoms as a component of the cured epoxy resin is 0.10-0.65, and the porous object has a porosity of 20-80% and an average pore diameter of 0.5-50 ?m.

Abstract: A method for removing microorganisms from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention. Microorganisms such as bacteria, particularly B. Diminuta, are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a B. Diminuta LRV greater than about 9, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. Another method for removing microorganisms such as bacteria and Mycloplasma, includes passing the liquid through a porous nanofiber containing filtration medium having a microorganism LRV greater than about 8, and the nanofiber(s) has a diameter from about 10 nm to about 1,000 nm. The filtration medium can be in the form of a fibrous electro spun polymeric nanofiber liquid filtration medium mat.

Abstract: A method of making an anisotropic filtration media includes, foaming a media, straining the media in a selected direction, and relieving strain of the media in the selected direction

Abstract: A filtration apparatus that separates a liquid feedstock mixed with a gas into filtrate and retentate, the apparatus including at least one filtration device comprised of at least one monolith segment of porous material that defines a plurality of passageways extending longitudinally from a feed face of the structure to a retentate end face. The filtration device contains at least one filtrate conduit within it for carrying filtrate toward a filtrate collection zone, the filtrate conduit providing a path of lower flow resistance than that of alternative flow paths through the porous material of the device. The filtration device can also be utilized as a membrane support for a device for microfiltration, ultrafiltration, nanofiltration, reverse osmosis, or pervaporation. Also disclosed is a method for using such a filtration apparatus.