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: A medium for the filtration of a fluid containing molecules of a Lewis acid is described, wherein the medium comprises a fluid-porous textile substrate having molecules grafted thereto, the molecules including at least one group having the properties of a Lewis base, such that the molecules of the above-mentioned Lewis acid can be retained in the textile substrate upon complexation with the grafted groups. A method for producing one such medium and a method for removing boric acid from an aqueous solution using one such filtration medium are described.

Abstract: A thermally treated expanded perlite that can be coated or impregnated with at least one active material and the use of the thermally treated expanded perlite as a light-weight filtration media. Methods for forming thermally treated expanded perlite as well as methods for forming thermally treated perlite coated or impregnated with an active material are also disclosed.

Abstract: A filter element with a filter medium and at least one retainer, to which the filter medium is fixed. The retainer comprises a retainer base body and a retainer attachment. The filter medium is arranged between the retainer base body and the retainer attachment at least in sections, and at least one profile element is formed on the retainer base body and/or on the retainer attachment to allow form-fitting and/or force-fitting retention of the filter medium there between.

Abstract: A gas-liquid separation system and a method thereof are disclosed. The said system comprises a gas-liquid separation conduit and a drain pipe. The drain pipe is curled and one side of the drain pipe connects to the gas-liquid separation conduit and the other side connects to a sewage pipe. According to the U-Tube principle, the gas and the liquid which both are exhausted by a machinery can be separated in the said system and therefore the said system can prevent related processes causing exhaust piping jam.

Abstract: The method comprises providing a leukocyte-removing filter having a thickness of 9.0 mm to 9.4 mm, an air permeability pressure drop of 300 Pa to 700 Pa, and effective filtration area of 50 cm2 to 70 cm2 which comprises a flat and flexible container having an inlet port and an outlet port and a sheet-like leukocyte-removing-filter material with a thickness of 8.2 mm to 8.6 mm disposed to divide the container into an inlet-port side chamber and an outlet-port side chamber, providing a pair of volume restriction boards disposed outside of the inlet port side external surface and the outlet port side external surface of the flexible container, having the distance between the volume restriction boards at the portion where the volume restriction boards facing each other sandwich the leukocyte-removing filter being in a range from [thickness of leukocyte-removing filter+0.5 mm] to [thickness of leukocyte-removing filter+2.

Abstract: A filter element includes a first, outer tubular construction of filter media defining a first open filter interior; a second, inner tuber construction of filter media defining a second open filter interior; the second construction of filter media being located within the first open filter interior and being radially spaced from the first construction of filter media; and the second open filter interior defines an unfiltered fluid channel. A plastic inner liner is within the first open filter interior to support the first construction of filter media. A plastic outer liner is within the first open filter interior to support the second construction of filter media. A filtered fluid channel is defined between the inner liner and the outer liner. A brace arrangement is between the first and second tubular constructions. The brace arrangement can include a spring, a plurality of gussets, or a solid spacer.

Abstract: A filter cartridge including a frame that is formed of one or more fluid conductive members and has a fluid outlet and a plurality of spaced inlets; and a flexible fabric material that allows the flow of water therethrough, the flexible fabric material being connected to the frame in a manner defining an internal zone, whereby substantially all fluid entering the internal zone from an opposite side of the flexible fabric material passes therethrough; wherein, upon connection of the fluid outlet to a fluid intake system, fluid is drawn through the flexible fabric material into the internal zone, thereby filtering the fluid, and filtered fluid is drawn through the plurality of spaced inlets and passes to the fluid outlet for delivery into the fluid intake system. A system and method for filtering fluid intake are disclosed.

Abstract: A filter unit (10) and a filter device formed from several such units for filtering a fluid, especially a process fluid such as required for chip-removing machining processes. The filter units (10) each comprise a frame (11) and a filter medium (16). The frame (11) has support webs (12), which reinforce the frame (11) and support the filter medium (16). The support webs (12) are arranged on the downstream side (18) of the filter medium (16) to prevent clogging on the upstream side (17) and permit a simple removal of the filter cake. The filter units (10) are stacked on each other in alternating orientation such that the upstream sides (17) or the downstream sides (18) of two adjacent individual filter units (10) face each other. The frame (11) forms unfiltered fluid and filtered fluid flow nozzles (13), (14) through which the fluid to be filtered or the filtered fluid can flow.

Abstract: In order to filter a solution containing nanowires, a flow of the solution is generated and directed through a passage defining an aperture having a narrow width. Alternatively, a flow of the solution may be generated and directed over a micro-structured surface configured to filter the solution.

Abstract: A variable wash flow filter assembly includes a wash velocity control cone movable between a minimal position and a maximum position.

Abstract: A stormwater filtration system includes a stormwater containment structure including a bottom surface, an inlet that receives stormwater and an outlet through which filtered stormwater exits the stormwater containment structure. A flow structure is at the bottom surface. The flow structure includes a conveyance conduit running along the bottom surface of the stormwater containment structure and in fluid communication with the outlet of the stormwater containment structure. The conveyance conduit includes a port extending through a sidewall of the conveyance conduit. A saddle includes an upper component and a lower component connected to the upper component such that the upper and lower components straddle the conveyance conduit at the port. The upper component includes an opening in communication with the port and the lower component supports the conveyance conduit above the bottom surface.

Abstract: An apparatus and method for treatment of water borne oxidized contaminants, using hydrogen as an electron donor for denitrification and reduction of other oxidized contaminants. Preliminary results reported here show that a biofilm of autotrophic denitrifiers accumulates rapidly in the wastewater setting, the MBfR can drive NO3? concentrations below 1 mgN/L, and the H2 pressure controls the NO3? flux.

Abstract: A water purifier system comprising a base unit (2) and a filter unit (1) detachably connected to said base unit (2). The base unit (2) is provided with a water inlet tube (3) for guiding water to the filter unit (1) and with a water outlet tube (4) for guiding purified water from the filter unit (1). The filter unit (1) comprises a container (7) surrounding a replaceable filter element (13). The container (7) is provided with a water inlet member (10) for guiding unfiltered water from said water inlet tube (3) into the container (7). The replaceable filter element (13) is provided with a water outlet member (11) for guiding purified water from the filter element (13) to said water outlet tube (4) of the base unit (2), whereby said water outlet member (11) extends through an opening (17) in the wall of the container (7).

Abstract: A blood filter system used for the sequential filtering of blood while actively removing air bubbles and debris comprising a filter housing with unique conical, or cylindrical shape, a flared inlet port, a unique up and down blood flow path, a multi-stage sequential filter assembly, an active air purge assembly and a unique downspout assembly with outlet port. The filter housing is adapted so that blood passes from the inlet port through the multi-stage sequential filter assembly to the outlet port following an up and down flow path, while its unique shape and angled filters effectively direct any air bubbles and debris up and out of the blood stream toward the active air purge assembly where they are removed.

Abstract: The invention relates to a porous material comprising a substrate based on at least one organic polymer A and a coating, where vii) the uncoated substrate based on the organic polymer A is macroporous, viii) the surface of the macroporous substrate is coated with a polymer B based on reactive resins, and ix) this coating with a polymer B is nanoporous and the mean diameter of the nanopores is not more than 1000 nm, and recording materials being excepted. The invention also relates to a process for producing the porous material and to the use of the porous material as a filter for gases or liquids. Finally, the invention relates to filters comprising the porous material, and to a process for filtering gases or liquids.

Abstract: A filter candle 100 as subject of the present invention comprises: an elongated mesh pack 200 for filtering a fluid, comprising an end fitting 206 securely fixed to a filter medium 205. Further, a hollow core tube 300 is provided having a fluid permeable wall 310, the core tube being positioned within the axial opening of the mesh pack. The core tube 300 has an end flange 340 fixed to the outer end surface 312, which end flange is suitable for engaging the end fitting 206 on the mesh pack. A ring-shaped seal 500 is provided between and making contact with the outer end surface of the core tube, the end fitting and the end flange. The seal is a porous ring-shaped structure comprising a multitude of pores, which pores have an average pore size being equal or less than the filter rating of the filter medium.

Abstract: Apparatus and method for substantially reducing or eliminating pressure pulsations caused by the opening and closing of fuel injectors. A preferred embodiment provides a restriction orifice adjacent the inlet end of a fuel injector filter of a respective fuel injector.

Abstract: Systems and methods for versatile water purification are provided. A system according to the invention may include a first delivery pump. The first delivery pump may maintain a flow of water into a multi media filter. The multi media filter preferably filters the pumped water. The filtered water may then be pumped by a reverse osmosis pump through a plurality of reverse osmosis columns to produce an osmosis water having less particulate matter than the filtered water. The osmosis water may then be passed to a buffer tank. A second delivery pump for pumping water from the buffer tank may also be used. An ozone system for injecting ozone into water pumped by the second delivery pump may be also implemented. A first output path from the ozone system may pass the ozonated water from the ozone system to the buffer tank via a first valve. A second output path from the ozone system may also be implemented.

Abstract: A novel filter-less separation technique for separating suspended particles from a solution is disclosed. More specifically, an on-chip bioparticle separator is disclosed, which relies on the differential force exerted by application of a series of high magnitude, short duration pressure pulses on bioparticles in suspension within microchannels, resulting in separation of suspended bioparticles. The filter-less separation technique is inherently suited to ?TAS (Micro Total Analysis System) since it exploits uniquely microscale phenomena to achieve separation. The on-chip bioparticle separator can be easily integrated with a disposable biochip, can be fabricated using low-cost, rapid manufacturing techniques, and can provide high performance for separation of bioparticles without the use of specialized or expensive equipment.

Abstract: The invention is directed to a system for continuously filtering a blood product including whole blood or any of its component(s), erythrocytes, leukocytes, platelets and plasma either alone or in combination. The system includes a connector for receiving the blood product, a filter coupled to the connector for filtering the received blood product, a collection bag coupled to the filter for collecting the filtered blood product, and a reservoir bag connected to the connector for temporarily storing received blood product, and providing received blood product through the connector to the filter to maintain continuity in filtration. The reservoir bag and the collection bag are suspended, the connector near or below the bottom of the collection bag, and the bottom of the reservoir bag is above the bottom of the collection bag. Also provided is a method of filtering a blood product using the continuous blood filtration system.

Abstract: Methods and systems for processing organic waste material are provided. These methods and systems include integrating an anaerobic bio-digester and nutrient recovery module with a bio-production facility, which can locally provide feedstock for the bio-production facility, and can locally provide organic material for the anaerobic bio-digester. Methods and systems for integrating an anaerobic bio-digester with a gas cleaner are also provided, which can recover nutrients while cleaning the biogas produced by the anaerobic bio-digester.

Abstract: The invention relates to a process for purifying an ionic liquid, which comprises the steps (a) partial crystallization of the ionic liquid from its melt and (b) separation of the crystals from the residual melt.

Abstract: A filter apparatus has a housing, an inlet port on one side of the housing and an outlet port on an opposed side of the housing. Sheet media is disposed in the housing having a first opening through the sheet media. Also dispersed in the housing is a bag media comprising an enclosed bag with a second opening into the bag. The first opening and the second opening are connected in fluid communication with each other and the sheet media is disposed before the bag media in the direction of flow through the housing so that both media are mounted inside the housing. Some fluid entering the inlet passes through both openings and through the bag media and into the outlet, and other fluid entering the inlet passes through the sheet media and then to the outlet.

Abstract: The present invention provides a method for efficiently filtering slurry suspensions in a vessel including a nozzle flange near the vessel, when solids in the slurry suspensions being treated in the vessel are filtered for cleaning or for other purposes and subsequently subjected to reslurrying, dissolving or dispersing operation. A method for producing suspensions, solutions or dispersions comprising separating solids from slurry suspensions and then slurrying, dissolving or dispersing the solids again by adding a solvent, characterized in that the above described solids are separated in the same vessel as the one in which the operation to obtain the above described slurry suspensions has been performed and/or inside a flange directly connected to the same vessel.

Abstract: An invention is provided for encouraging routine testing for TDS levels in a liquid. The invention includes determining a TDS level of the liquid utilizing an apparatus capable of determining a TDS level based on the conductivity of the liquid. Next, corrective action can be performed to reduce the TDS level when the TDS level is beyond a predetermined level. To facilitate a continual visual reminder for future TDS level testing, the apparatus is removably attached to a surface viewable when in proximity of a device utilized to access the liquid utilizing an integrated attachment mechanism.

Abstract: A method and a device for treating grinding water of a lens grinding device are provided, in which grinding water is circulated via a grinding water tank, a filtering device, a lens grinding device main body by a pump, and an amount of grinding chips in a circulation cycle of the grinding water is detected based on a water level of the grinding water tank.

Abstract: A filter unit includes at least one ceramic filter and at least one mounting that liquid-tightly secures the filter in the mounting in such a way that a filtrate outflow via an interior portion of the filter through the mounting is provided, the filter being secured in the mounting by adhesive bonding with an adhesive.

Abstract: A method for removing leukocytes, whereby leukocytes can be removed at a higher level of performance in a short filtration time without clogging. A method comprising passing a leukocyte-containing liquid through a filter for removing leukocytes made of a nonwoven fabric having an average fiber diameter of from 0.3 to 3.0 ?m, and thus removing the leukocytes from the leukocyte-containing liquid, to give a leukocyte-free liquid, characterized by using a nonwoven fabric having a formation index (y) of 50 or less corresponding to a thickness of 0.3 mm; use of a leukocyte removal filter therefore; and the leukocyte removal filter.

Abstract: The invention provides new methods for purifying and concentrating viruses. The inventors have discovered that high molecular weight proteoglycans present in retroviral stocks are co-concentrated with the retroviruses, and can inhibit retroviral transduction. The new purification and concentration methods feature treatment of virus stock with an anionic polyelectrolyte and a cationic polyelectrolyte, followed by centrifugation. The new methods minimize the amount of proteoglycan co-precipitated with the infectious virus.

Abstract: Disclosed are improved methods and apparatus for radiolabeling, particularly methods and apparatus for large scale in-line radiolabeling of products, such as proteins and antibodies.

Abstract: An apparatus, system, and method for bypassing a fuel filter pressure regulation valve which includes a bypass window and bypass passage. The bypass passage window is positioned in the top of a standpipe of a filter. The filter includes a filter cartridge with top and bottom end plates. The top end plate of the filter cartridge has a hole to receive a standpipe. The top end plate also has a sealing gasket to seal the bypass passage window when the proper filter cartridge is in place. This arrangement exposes the regulator valve to the fuel and/or air at the top of the filter housing when the proper filter cartridge is in place. Pressure in the housing opens the valve, allowing air and/or fuel to be vented through the bypass passage and back to the fuel tank.

Abstract: A method of supplying an additive in an oil filter, the method including: forming a dispersement device housing with a first chamber and a second chamber, the second chamber being sealed from the first chamber by a pair of dividing walls; sealing a first metering opening with an oil soluble material the first metering opening being in fluid communication with the first chamber when the oil soluble material is removed from the first metering opening; sealing a second metering opening with an oil soluble material the second metering opening being in fluid communication with the second chamber when the oil soluble material is removed from the second metering opening; disposing a first liquid additive within the first chamber; disposing a second liquid additive within the second chamber; sealing the dispersement device housing with a cap, the cap being configured to seal the first chamber and the second chamber within the dispersement device housing; and securing the dispersement device housing to a filter elemen

Abstract: The invention relates to a method of separating biological particles from the liquid containing same for purification, analysis and optionally diagnostic purposes. The inventive method comprises at least one step involving vertical filtration through a filter having a porosity that is adapted to the type of biological particles to be separated, such that said particles are retained by the filter. The invention is characterised in that: (i) the method involves the use of a filter comprising at least one basic filtration zone, whereby each basic filtration zone has a limited surface area; and (ii) the surface area of each basic filtration zone and the number of basic filtration zones are selected as a function of the type of liquid to be filtered, the type of biological particles to be separated and the volume of liquid to be filtered.

Abstract: A filter comprising means defining a first chamber; means defining a second chamber; means defining a third chamber having an inlet port communicating with an outlet port of said second chamber, an outlet port communicable with a fluid line and a filter medium disposed therein between said inlet and outlet ports thereof; a piston having a head portion disposed in such first chamber, cooperating with such first mentioned means to provide a first variable chamber communicating with a port and a second variable chamber communicating with a port, and a rod portion received in the second chamber provided with a length sufficient to unobstruct an inlet port of said second chamber communicating with a line pressure on the piston is in a retracted position, allowing fluid from the fluid line to flow into the second chamber, and to obstruct such inlet port of the second chamber when such piston is in an extended position; a valve having an inlet port communicable with such fluid line and a pair of outlet ports operati

Abstract: A method and apparatus for a marine vessel water intake filtering system is described. The apparatus includes a filtering device adapted to couple to the marine vessel over a water intake port in the hull of the vessel. The filtering device lowers the flow velocity of the water on the incoming surface of the filter while maintaining a suitable flow to the intake port of the vessel. The filtering device prevents marine species of a certain size from becoming entrained in the water flow and entering the intake port, and provides for marine species that may be in the area of the intake do not become impinged on the filtering device as a result of intake water flow velocity.

Abstract: There is described a method for the starting up of a filtration plant for the filtration of a process liquid, after cleaning of the filtration plant, and a filtration plant which is arranged to be able to started up in accordance with this method, where a secondary liquid supply unit connected to the post-treatment equipment during the starting up of the plant provides a flow of e.g. sterilised water to the post-treatment equipment, so that this can be held in a condition in which it is ready for operation, where thereafter, the process liquid is led to the filtration equipment, and the flow of liquid from the secondary liquid supply unit to the post-treatment equipment is shut off when a flow of filtered process liquid is obtained, and which thereafter replaces the liquid from the secondary liquid supply unit.

Abstract: Systems and methods are provided for conveying an amount of red blood cells and an amount of plasma to a blood source. Blood is conveyed from a blood source into a separation device and the separation device is operated to separate the blood into a layer containing red blood cells and a layer containing plasma. Red blood cells and plasma are removed from the separation device and volumes of the red blood cells and plasma are conveyed to the blood source. The volumes of red blood cells and plasma are alternately conveyed to the blood source for said amounts of red blood cells and plasma.

Abstract: A method and device for blood treatments that use fluids such as dialysate and replacement fluid for renal replacement therapy. In an embodiment, fluid is passed either by pump or passively by gravity feed, through a microporous sterilization filter from a fluid source to a replacement fluid container. The latter forms a batch that may be used during treatment. The advantage of forming the batch before treatment is that the rate of filtering needn't match the rate of consumption during treatment. As a result, the sterilization filter can have a small capacity. In another embodiment, a filter is placed immediately prior to the point at which the sterile fluid is consumed by the treatment process. The latter may be used in combination with the former embodiment as a last-chance guarantee of sterility and/or that the fluid is free of air bubbles. It may also be used as the primary means of sterile-filtration.

Abstract: Blood separation methods and systems are provided for mid-processing calculation of blood composition. Blood is conveyed into a device having an outlet line and the device is spun to separate a blood component from the blood. A flow of blood component is conveyed from the device by the outlet line and the blood component in the outlet line is optically measured. With said optical measurement, a current blood component yield, a blood component pre-count, the volume of blood to process to collect a target amount of said blood component, and/or the processing time required to collect a target amount of said blood component is calculated. The optical measurement can also be used to calculate an amount of storage fluid to convey into a collection container with the blood component.

Abstract: A method for filtering out foreign particles from a cooling lubricant used in a process of machining a workpiece includes providing an inherently stable, flow-porous filter element. The filter element comprises a porous main body made of joined plastics particles and having an afflux surface and a porous coating on the afflux surface for surface filtration. The porous coating first component particles and/or fibres, second component anti-adhesion particles to mitigate the adhesion of filtered out material to the porous coating and to facilitate cleaning of the filter element, with the first component particles and/or fibres and the second component particles being mixed in the porous coating, a solidified inorganic binder, and a set adhesive. The solidified inorganic binder and the set adhesive bind the first component particles and/or fibres and the second component particles to each other and to the porous main body.

Abstract: A blood filter system used for the sequential filtering of blood while actively removing air bubbles and debris comprising a filter housing with unique conical, or cylindrical shape, a flared inlet port, a unique up and down blood flow path, a multi-stage sequential filter assembly, an active air purge assembly and a unique downspout assembly with outlet port. The filter housing is adapted so that blood passes from the inlet port through the multi-stage sequential filter assembly to the outlet port following an up and down flow path, while its unique shape and angled filters effectively direct any air bubbles and debris up and out of the blood stream toward the active air purge assembly where they are removed.

Abstract: Systems and methods for separating particles and/or toxins from a sample fluid. A method according to one embodiment comprises simultaneously passing a sample fluid and a buffer fluid through a chamber such that a fluidic interface is formed between the sample fluid and the buffer fluid as the fluids pass through the chambers the sample fluid having particles of interest therein; applying a force to the fluids for urging the particles of interest to pass through the interface into the buffer fluid; and substantially separating the buffer fluid from the sample fluid.

Abstract: An apparatus, system, and method are disclosed for enhancing the filtration of small particles from liquid stream. The apparatus includes a fuel filter bank having with at least one fuel filter. The fuel filter bank is mounted on a mounting bracket. The mounting bracket couples to an internal combustion engine with a plurality of vibration dampeners. The engine may have a high pressure common rail fuel system. The vibration dampeners vibrationally isolate the fuel filter bank from the internal combustion engine, reducing the particle slip and degradation of the fuel filter bank.

Abstract: A water transfer device can include first and second flow paths separated by a water transfer membrane and a hydrophilic diffusion medium. The hydrophilic diffusion medium is disposed between the water transfer membrane and the first flow path. Water content of a first fluid stream flowing through the first flow path is transferred through the diffusion medium and water transfer membrane and into a second fluid stream flowing through the second flow path. The hydrophilic diffusion medium is operable to absorb liquid water in the first fluid stream and hold the absorbed liquid water in contact with the water transfer membrane. The hydrophilic diffusion medium is also operable to diffuse water vapor in the first fluid stream and transport the water vapor to the water transfer membrane. The water transfer membrane transfers the water in contact therewith to the second fluid stream flowing through second flow path.

Abstract: A filter housing with a socket drain for minimizing waste and downstream contamination of valuable fluids during filter element changes.

Abstract: A method and apparatus for filtering a large volume fluid intake system using a modular immersed-filtration array that can be easily scaled for use in a wide variety of immersion filtering applications. The immersed-filtration array is composed of a plurality of individual filtration modules. Each filtration module has a mating end that allows the module to be coupled with a base unit or plenum via a common interface port located on the base unit. The array can be scaled in a plurality of ways.

Abstract: Devices, and methods of use thereof, receivable by autosamplers for processing fluids contains suspended solids and solubles in, for example, solid phase extraction, include an inlet chamber in fluid communication with an outlet chamber through an integral fluid pathway. One or more autosampler needle(s) may inject the fluid into the inlet chamber, which contains a separation medium through which the injected fluid flows prior to flowing into the outlet chamber, from which fluid may be withdrawn by the autosampler needle(s). A pressure tight seal may be formed between the needle(s) and inlet chamber, and backflow is preventable from the outlet chamber to the inlet chamber. Numerous embodiments of the device are described, including well plate configurations and structures graspable by autosampler robotic devices and/or which may be held in autosampler trays.

Abstract: Systems, methods, and devices for preparation of purified water and medicaments for various uses including blood treatment are described. Methods, devices, and systems for creating multiple-treatment batches are described.

Abstract: An energy efficient desalination process that does not produce waste products involves the extraction of water from a first solution, such as seawater, by using a second concentrated solution to draw the water from the first solution across a semi-permeable membrane. By manipulating the equilibrium of the soluble and insoluble species of solute within the second solution in favor of the soluble species of the solute, a saturated second solution can be used to generate osmotic pressure on the first solution. Also, by adjusting the equilibrium in favor of the less soluble species after the water has been drawn from the first solution, a portion of the solute can easily be precipitated out. Heating the second solution decomposes the solute into its constituent gasses. The constituent gasses and precipitated solute may be recycled through the process to affect the changes in equilibrium and eliminate waste products.