Abstract: A filter device has a filter housing (1) with a fluid inlet (13) for raw fluid, with a fluid outlet (3) for filtrate and with at least one one-piece or multi-piece filter insert (5, 7) received in the filter housing (1). The filter insert can be cleaned using at least one back-flushing member (21) in counter-current to the filtration direction. This back-flushing member can, by a fluid-guiding driveshaft (23) of a rotary drive (35), be moved along the inner side (19) of the respective filter insert (5, 7) and has, at its end adjacent to this inner side (19), a gap-shaped passage opening (39) that extends parallel to the axis of rotation of the driveshaft (23) and that discharges into a flow space (41; 57; 67) fluidically connected to the driveshaft (23). The flow space at least partially continuously narrows in the direction of the driveshaft (23) in a first plane in which the passage opening (39) lies.

Abstract: Apparatuses and methods to rejuvenate spent filtration media are described. The apparatuses include a filtration unit to filter a liquid having solids that need to be removed and a rejuvenation unit to heat the spent filtration media that has reduced filtering capacity. The methods include using the apparatus to rejuvenate spent filtration media by removing solids deposited on the filtration media to allow its repeated reuse rather than being discarded and replaced with new filtration media.

Abstract: A system for further filtering a liquid extract material after an initial extraction process. In an embodiment, the system includes a semi-rigid filter cup that is substantially cylindrical, the filter cup having a top and a bottom, wherein the top is oriented to receive filter media prior to a filtration process, and material to be filtered during the filtration process. The filter cup includes an integrated deformable flange at the top of the filter cup, an integrated top o-ring that is integrated into the top of the integrated deformable flange and an integrated bottom o-ring that is integrated into the bottom of the integrated deformable flange.

Abstract: The present invention relates to a method of wastewater treatment in which a filter aid prepared by extrusion of freshly harvested wet lignocellulosic feedstocks or by extrusion of wet lignocellulosic feedstocks having dry matter content 30-75% (w/w) is used to collect sewage sludge and the combined spent filter aid with collected sewage sludge is used for hydrothermal conversion.

Abstract: The invention proceeds from a filter device which is provided for stabilising a liquid, having at least one filter unit, a membrane filter unit, which has at least one filter element and at least one integrated stabiliser. It is proposed that the filter unit has at least one further integrated stabiliser. It is proposed in a further aspect of the invention that the filter device comprises at least one first precursor which is provided for forming the filter element at least partially, and the same first precursor is provided for forming the stabiliser at least partially.

Abstract: A dielectric assembly for generating ozone includes a positive electrode, a negative electrode, a dielectric for generating the ozone, and a knob adapted to extend outside of a housing into which the dielectric assembly is to be placed. A system is also provided for sanitizing and deodorizing water, food, surfaces and air including a microbiological reduction filter device having an input connected to a water supply, a venturi injector disposed within a housing and connected to an output of the microbiological reduction filter device which generates ozone and mixes the generated ozone with the water, and an electrode assembly comprising a plurality of electrodes, a dielectric for generating the ozone, and a knob extending outside of the housing. The dielectric in a first embodiment and the entire dielectric assembly in a second embodiment can be removed from the housing and replaced in its entirety by the knob.

Abstract: An integrated apparatus for chemical precipitation and rapid filtration of water samples. The invention relates to an apparatus for chemical precipitation and filtration of water samples. The integrated apparatus includes a reaction vessel, a lid of reaction vessel, a opening for reagent addition and gas leakage, an aerating tube, a support, a liquid phase remover, a solid phase collector, a control cover of the liquid phase remover, and a control cover of the solid phase collector.

Abstract: A method for preparing high transparent low acyl gellan gum from fermentation broth is provided, in which two-stage filtrations are carried out on deacylated gellan gum fermentation broth by using diatomite and/or perlite with different particle sizes as filter aid and filter media. The obtained product has high gel transparency and low content of metal ions. The method also has the advantages of simple pretreatment of fermentation broth, high impurities removal efficiency, simple operation, and easy to be industrialized.

Abstract: An in-line treatment cartridge and methods of using same are disclosed. The in-line treatment cartridge can include a cylindrical body configured to allow fluid to flow therethrough and a plurality of particulates contained within the body. At least one particulate of the plurality of particulates can include a chemical treatment agent. The at least one chemical treatment agent can separate from the at least one particulate upon contact with a fluid.

Abstract: The present invention relates to a method for treating raw human milk to produce treated human milk having undetectable levels of bacteria. The milk is skimmed to produce skim human milk then subjected to microfiltration to yield a filtrate which has undetectable levels of bacteria, including Bacillus cereus. The resultant human milk can be further processed, used and/or sold.

Abstract: An auto-cleaning marination filter for a poultry injector system including an outer housing having a liquid inlet and outlet, a screen that allows passage of liquids and impedes passage of solid particles, and a wiper surrounded by said screen for removing solid particles attached to the screen by reverse flow of the liquid through a gap in the wiper.

Abstract: In one aspect, a method of making non-covalently bonded carbon-titania nanocomposite thin films includes: forming a carbon-based ink; forming a titania (TiO2) solution; blade-coating a mechanical mixture of the carbon-based ink and the titania solution onto a substrate; and annealing the blade-coated substrate at a first temperature for a first period of time to obtain the carbon-based titania nanocomposite thin films. In certain embodiments, the carbon-based titania nanocomposite thin films may include solvent-exfoliated graphene titania (SEG-TiO2) nanocomposite thin films, or single walled carbon nanotube titania (SWCNT-TiO2) nanocomposite thin films.

Abstract: A filter for use with a fuel system having contaminants has a plurality of apices and a plurality of ridges, where each ridge attaches an apex to an adjacent apex. A plurality of ridges and adjoining apices define a first opening that is in register with a second opening wherein the second opening has less surface area than the first opening. A side attaches the first opening and the second opening and tapers inwardly from the first opening to the second opening to minimize stagnant areas along the ridges and apices.

Abstract: A porous formed composite material comprising: (i) a polymer, or a mixture thereof, said polymer having immobilised therein (ii) an insoluble sorbent material selected from the group consisting of: (a) a cross-linked vinyl lactam homopolymer or copolymer, said vinyl lactam homopolymer or copolymer being optionally mixed with silica gel; and (b) polyvinyl lactam-modified silica gel; is described. Solid phase extraction apparatus incorporating the material and its use in removing polyphenols and/or proteins from beverages to prevent the formation of haze in beverages are also described.

Abstract: A green process and system are disclosed for utilizing a biomass filter aid in the filtration of a bio-oil. The process comprises filtering a bio-oil containing residual solids from a conversion reaction in the presence of the biomass filter aid to produce a filtered bio-oil. The biomass filter aid facilitates efficient removal of residual solids from the bio-oil. The spent biomass filter aid containing the residual solids may be recycled as a conversion feedstock or used as a combustion heat source in the biomass conversion system.

Abstract: Method and apparatus for reducing the thickness of a precoat-layer accumulated on the filtering surface of a filter disc from a solids-containing suspension in a basin of a disc filter, said disc filter having two or more filter discs arranged on a shaft and between them at least one drop chute provided with a scraper on both sides, which scraper scrapes the cake filtered from the suspension on the filtering surfaces of the filter discs into the drop, the layer thickness of the precoat on the filtering surface is reduced by shortening the distance between the tips of the scrapers and the filtering surface, and the precoat thickness reduction is accomplished for the precoats on the filtering surface of the two filter discs on both sides of the drop chute non-simultaneously.

Abstract: Method for preparing a precoat (3) on the surface of the filter medium (2) of a polishing filter (1), polishing filter (1) and use of a polishing filter. The essential feature in the invention is that in the polishing filter (1), the precoat (3) is formed either exclusively or jointly from the underflow created in the separation process.

Abstract: A method of removing suspended solids from a gasification process water stream includes, in an exemplary embodiment, providing a gasification process water stream containing process derived suspended solids, settling at least a portion of the suspended solids from the process water stream in a settling apparatus, providing a filter apparatus having a plurality of filter elements, and removing a portion of the settled solids from the settling apparatus. The method also includes precoating the filter elements with the settled solids removed from the settling apparatus, directing a portion of the process water stream from the settling apparatus to the filter apparatus, and filtering the portion of the process water stream directed from the settling apparatus through the precoated filter elements to remove suspended solids particles to form a filtrate.

Abstract: Novel filter elements for sequestering acids from oil or fuel, the strong base flocs that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber matrix interspersed with strong base particle flocs wherein the strong base particles constitute at least 30% by weight of the filter element. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil.

Abstract: Disclosed herein are diatomaceous earth products containing reduced soluble metal levels, processes for reducing soluble metal levels in diatomaceous earth products, and methods of using the same. In particular, diatomaceous earth products are disclosed that have been treated with at least one surface metal blocking agent, and then subjected to at least one thermal treatment process to reduce the level of soluble metals associated therewith. Such diatomaceous earth products containing reduced soluble metal levels may be useful for various applications including, but not limited to, as filter aid materials.

Abstract: Systems and methods for dry cleaning articles using siloxane solvents are provided. In the systems and methods according to the present invention, the siloxane solvent suspends impurities extracted from the articles being cleaned, and the system filters off the impurities, thereby cleaning the articles.

Abstract: The present invention relates to a system and a process of running the system that allows for the long term filtration of product without loss of filtration capability due to clogging or fouling. The system is a normal flow filtration system having one or more filter cartridges attached to an outlet of a housing in the system. The filter cartridge(s) are contained within a bowl and depend preferably vertically from the outlet. Liquid enters the bowl of the housing and contacts the outer surfaces of the one or more cartridges. Impurities are trapped on or in the surface of the filter and the filtered liquid flows through the filter and through the outlet. One or more parameters such as flow rate, transmembrane pressure drop and/or time are measured and when the desired parameter(s) are met, the filtration ceases. A backflushing occurs back through the filter cartridges so as to remove the trapped impurities on or in the filter surface.

Abstract: System and method for replacing a resist filter in such a manner as to reduce filter-induced wafer defects are described. In one embodiment, the system comprises a filtration system connected to a dispenser, the filtration system comprising a filter; and a switch connected to the filter for selectively connecting the filtration system to throughput one of a first chemical solution and a second chemical solution.

Abstract: A nanoflotation system used to separate suspended solids or large settling or floating solids from water, waste water or liquids. This is accomplished through the use of submerged membranes, in combination with a number of design components comprising froth flotation, gravity settling, pre coating of the submerged membranes, spacing, of the membranes to facilitate flotation of solids to the surface or to the bottom of the containment chamber holding the submerged membranes, and membrane structures which use large diameter hollow fibre or tubular membranes and/or large pore opening membrane materials.

Abstract: A wastewater treatment method in an embodiment includes: mixing primary aggregates made of magnetic substances and a dispersion medium to make a suspension; and passing the suspension through a filter to allow the primary aggregates to remain on the filter and to form a secondary aggregate made of an aggregate of the primary aggregates. Further, the wastewater treatment method in the embodiment includes; passing wastewater through the secondary aggregate to remove suspended solids and oil in the wastewater; dispersing the secondary aggregate in a dispersion medium to decompose the secondary aggregate into the primary aggregates and to wash the primary aggregates; and collecting the primary aggregates with magnetic separation.

Abstract: Precipitated silica is produced by a process that includes a step for filtering and washing an aqueous suspension (S), comprising the following steps: (a) filtering a first portion (S1) of a precipitated silica suspension (S), whereby a cake (G1) is formed and said cake (G1) is then washed and a suspension (S?1) is formed by suspending the thereby obtained washed cake (G1), notably by dilution with water; (b) filtering a second portion (S2) of the suspension (S), whereby a cake (G2) is obtained; and (c) filtering said suspension (S?1) emanating from step (a) through the cake (G2) obtained at the end of step (b), employed as a filtration precoating layer.

Abstract: A filter module (1) for disposable use with a closed and at least partially flexible, preferably expandable casing (3) as filter housing (2), a non-filtrate space (9) within the closed casing (3) and at least one first opening (10) through the casing (3) to the non-filtrate space (9), at least one second opening (8) for conducting the filtrate away through the casing (3) and one or more disc-like filtering elements (14) which are accommodated in the casing (3) and the interior of which is connected to the second opening (8), wherein a negative pressure in relation to the normal atmosphere of the surroundings prevails within the casing (3).

Abstract: A serviceable device for filtering lubricating oil includes an inlet and an outlet, a first filtering element and an absorption filtering element. The absorption filtering element is configured to absorb a fluidic contaminant present in the lubricating oil when in contact with the absorption filtering element. A flow path for the lubricating oil is from the inlet, through the first filtering element, and out the outlet. The flow path further includes lubricating oil contact with the absorption filtering element.

Abstract: Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.

Abstract: A method for removing at least one contaminant from a fluid stream includes filtering the fluid stream with a filtration medium. The filtration medium includes an impregnate. The impregnate includes an organic amine and an inorganic metal salt. The inorganic metal salt includes magnesium oxide, calcium oxide or combinations thereof. The medium has from about 0.1 to about 25% by weight of impregnate. The impregnate contains from about 0.1 to about 5% by weight organic amine, and the organic amine includes aqueous urea, solid urea, melamine or mixtures thereof. The impregnate contains from about 0.1 to about 5% by weight metal salt. The impregnate optionally further includes a surfactant such as polyacrylic acid. In some embodiments, the method includes removing at least two contaminants from the fluid stream.

Abstract: The disclosure describes a novel method for operating a bioreactor and filtration system. The method adds excess iron to the bioreactor to improve the overall operation and efficiency of the bioreactor/filtration system.

Abstract: The invention relates to the use of labels (3) which are obtained and prepared with a processing liquid (1) in the course of a container handling, in particular a container cleaning, as filtering aids (5) for the layered deposition filtration of the processing liquid (1) to be cleaned.

Abstract: Nanoparticle-treated particle packs, such as sand beds, may effectively filter and purify liquids such as waste water. When tiny contaminant particles in waste water flow through the particle pack, the nanoparticles will capture and hold the tiny contaminant particles within the pack due to the nanoparticles' surface forces, including, but not necessarily limited to van der Waals and electrostatic forces. Coating agents such as alcohols, glycols, polyols, vegetable oil, and mineral oils may help apply the nanoparticles to the particle surfaces in the filter beds or packs.

Abstract: A method for treating ship ballast water with a membrane, which can easily separate and reliably remove a fouling substance attached to a membrane and maintain the membrane flux for long periods. The method including a membrane separation step of taking in seawater in a port area in which a ship is anchored and separating a microorganism with a size equal to or greater than a predetermined size therefrom with a membrane filtration apparatus installed in or on a hull of the ship and having a filtration membrane module, a backwash step of separating a fouling substance attached to a membrane surface of the membrane filtration apparatus from the membrane surface by backwashing is provided.

Abstract: A method of treating a hollow fiber membrane microfiltration filter having an influent side and an effluent side to improve performance of the filter is disclosed. The method entails sealing imperfections in surfaces of the filter by flushing the filter with a liquid aqueous suspension of particulates. Filter cartridge devices also are disclosed. The devices may include a bactericidal chamber. A radial flow filter may be included in the devices. The filter cartridges may include a drain tube positioned within the filter for removing of effluent generated by the filter. A plurality of filter cartridges may be-positioned-on the drain tube.

Abstract: Systems and methods for dry cleaning articles using siloxane solvents are provided. In the systems and methods according to the present invention, the siloxane solvent suspends impurities extracted from the articles being cleaned, and the system filters off the impurities, thereby cleaning the articles.

Abstract: Nanoparticle-treated particle packs, such as sand beds, may effectively filter and purify liquids such as waste water. Proppant beds treated with nanoparticles may fixate or reduce fines migration therethrough. When tiny contaminant particles or fines in these fluids flow through the nanoparticle-treated bed or pack, the nanoparticles will capture and hold the tiny contaminant or fines particles within the pack due to the nanoparticles' surface forces, including, but not necessarily limited to van der Waals and electrostatic forces. Nanoparticle-treated beds or packs may be recharged by contacting the bed with an inorganic acid (but not hydrofluoric acid) or an organic acid, and optionally followed by subsequent treatment with hydrofluoric acid. This treating substantially removes the nanoparticles and the fine particulates that have been removed from a fluid (e.g. wastewater being treated, produced fluids in a formation, etc.). The particle pack may then be re-treated or recharged with nanoparticles.

Abstract: A green process and system are disclosed for utilizing a biomass filter aid in the filtration of a bio-oil. The process comprises filtering a bio-oil containing residual solids from a conversion reaction in the presence of the biomass filter aid to produce a filtered bio-oil. The biomass filter aid facilitates efficient removal of residual solids from the bio-oil. The spent biomass filter aid containing the residual solids may be recycled as a conversion feedstock or used as a combustion heat source in the biomass conversion system.

Abstract: Metal oxide particles heated while immersed in water in a closed container are combined with membrane filtration to remove contaminants from water. The use of the heated particles reduces fouling of the membrane typically encountered when membranes alone are used to remove contaminants from water.

Abstract: A filtration apparatus and a filtration method are provided. The filtration apparatus includes a filter medium, a first filter layer of a first filter aid disposed on an upstream side of the filter medium, and a second filter layer of a second filter aid disposed on an upstream side of the first filter layer. The first filter aid has a particle size distribution primarily including coarse particles, a representative particle diameter of which is smaller than a representative dimension of openings in the filter medium. The first aid forms bridges over the openings. The second filter aid has a particle size distribution primarily including fine particles, which are smaller than the first filter aid and which themselves cannot form bridges over the openings. The openings of the filter medium and the particles of the second filter layer are adjusted in size by bridging phenomenon of the first filter aid.

Abstract: Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.

Abstract: The present invention has an object to provide a filtration apparatus and a filtration method which can treat a large quantity of flow in a short time and can sterilize raw water to a high level using only a physical treatment.

Abstract: A priming method for a filter, whereby the outlet of a spent filter is connected to the inlet of a fresh filter, and the spent filter is inverted. A drain in the spent filter is then opened to allow air to enter the spent filter and fluid to drain from the clean side of the spent filter into the fresh filter.

Abstract: The invention relates to a method for extracting solids (23; 123) from a suspension (22; 122) containing the solids (23; 123) and suspension liquid (32; 132) in a continuously or virtually continuously operating filter device (10; 110) using a filtering material (26; 126), on the one side of which, the high-pressure side (30; 130), a higher pressure prevails than on its other side, the low-pressure side (42; 142), and which passes successively through a plurality of working zones (I-V; I-IV) of the filter device (10; 110) in a working direction (U), the suspension (22; 122) being supplied to the filtering material (26; 126) on its high-pressure side (30; 130) in a first working zone (I) and being filtered, the suspension liquid (22; 122) flowing through the filtering material (26; 126) on account of the difference in pressure between the high-pressure side (30; 130) and the low-pressure side (42; 142) while at least some of the solids (23; 123) are deposited on the filtering material (26; 126).

Abstract: A settling tank for dewatering a thin slurry is provided in a lined portable container and with a disposable filtering means. A novel method of processing the slurry by settlement of the solid phase and removal of the liquid phase in cycles avoids the clogging of the filtering means. The settling tank can be easily transported and dumped without requiring the transferring of residue sludge or the cleaning of equipment.

Abstract: Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.

Abstract: The present invention provides a novel filter for filtration and recovery of suspended particles in water, which can filtrate the suspended particles in water simply and fast as well as recover the particles efficiently, and a method for filtration and recovery. The method involves the process of physically filtrating suspended particles in water using a filter comprised of soluble powder layered on a support and then dissolving the soluble powder of the filter in acid to recover the suspended particles filtrated.

Abstract: A water treatment and recycling system for filtering grey waste water to clear water for stone fabrication equipment includes a waste water storage tank connected to receive grey water from stone fabrication equipment and a clear water supply loop. The clear water supply loop includes a high capacity filter assembly receiving waste water from the waste water storage tank and filtering the waste water into clear water that is provided to the fabrication equipment through a clear water storage tank. The high capacity filter assembly includes at least one high pressure filter unit wherein each high pressure filter unit includes a duplex air diaphragm pump assembly, forfiltering the waste water into the clear water.

Abstract: The invention relates to compositions and methods for separating oil and other contaminants (particularly oleophilic compounds) from water, gas and other carriers. The invention is useful for separating oil, including emulsified oil, from water and other oleophilic compounds from bilgewater and other wastewater. The compositions comprise a hydrocarbon resin and a drying oil, which may be combined in an organic solvent. For example, hydrocarbon resin and tung oil are optionally combined into a naphtha solvent. The invention is also useful for removing a variety of contaminants from an air stream, such as exhaust from internal combustion engines, burners, and other sources.

Abstract: Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer; (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.