Abstract: An environmentally friendly acid neutralizing filter cartridge is adapted to be mounted in a cartridge mounting body of an engine oil circuit for filtering particulates and neutralizing acid in oil. The filter cartridge comprises a support housing that comprises substantially no metal parts such that the filter cartridge can be readily incinerated. A full flow particulate filter and a bypass particulate filter are arranged in the support housing. A bed of acid neutralizing particles is contained in the support housing. The housing is configured such that a predetermined primary flow path is defined through the filter cartridge that passes through the full flow particulate filter and bypassing the bed of acid neutralizing particles; and a predetermined bypass path is defined through the filter cartridge that passes, in sequence, through the bed of acid neutralizing particles and the bypass particulate filter.

Abstract: An environmentally friendly dual lube venturi filter cartridge which has no metallic components. A plastic centertube having a venturi section supports a bypass filter element on standoffs molded into the centertube. An outer concentric full flow filter element surrounds the bypass filter. The full flow filter is supported on a plastic centertube which creates a gap between it and the bypass filter. A first bypass filter endcap both seals the bypass filter and provides standoffs for allowing full flow oil around the bypass filter. The standoffs thus split the full flow which progresses through the primary filter in two paths, a primary path around the bypass filter and into the centertube, and a bypass path through the secondary filter and the venturi. Plastic upper and lower endcaps carry grooves for simple sealing gaskets, a radial seal gasket on the bottom which seals against both the endcap which carries it and a flange in the housing, and an axial seal gasket at the top.

Abstract: A high capacity gravity feed filter for filtering blood and blood products or the like includes a body having an inlet port, an outlet port, two filter wells, at least one filter element disposed in each of said filter wells, between the inlet port and outlet port so as to filter liquid which flows into the filtration device via the inlet port. The filter elements divide each of said filter wells into a first chamber and a second chamber. The device allows gases to vent the filtration device through the outlet port. The means may include a vertical channel within each of said second chambers. The filtration device allows air therein to be purged downstream into a receiving blood bag without the manipulation of the height of the filtration device or the receiving blood bag.

Abstract: A filter assembly for filtering water from an external source, the filter assembly including a manifold assembly mountable to an appliance and being in fluid communication with the external source and a cartridge assembly, the cartridge assembly being replaceably fluidly couplable to the manifold assembly, the filter assembly includes a first and a second fluid tube, the first fluid tube being fluidly couplable to the external source being an unfiltered fluid inlet, the second fluid tube being a filtered fluid outlet, the first and the second fluid tubes each having a barbed end for coupling to the manifold assembly.

Abstract: A suction oil filter for transmissions or engines with a top shell, a bottom shell, with an oil intake opening and an oil outlet, said suction oil filter being positioned in an oil pan or in the transmission housing, characterized in that the oil intake opening has arranged therein a movable intake tube which is pressed by resilient means mounted on the inside of the intake tube outwards onto the oil pan base or the transmission housing and an oil intake opening is thus created at a defined constant distance from the oil pan base or transmission housing.

Abstract: A filter device for mass exchange between two media separated by a membrane is disclosed. The device provides for low-stress transfer of blood flow from the connection area of the filter device to the fibers of a hollow fiber bundle. Relatively uniform utilization of the fibers is provided by a membrane in the form of a hollow fiber bundle whose fiber cavities form a first flow space. At least one inflow or outflow chamber is connected to the first flow space for supplying a medium to the hollow fiber bundle or removing a medium from the hollow fiber bundle. The inflow or outflow chamber is adjacent to an essentially circular or semicircular channel which is designed to be open in the direction of the ends of the hollow fibers and is connected to an inlet or outlet of the filter device. The channel is arranged approximately centrally with the hollow fiber bundle.

Abstract: A fluid filter assembly includes a housing having a closed end and an open end; a filter element operably oriented in the housing; a baffle plate mounted to operably cover the housing open end; the baffle plate including a first axial face and an outer circumferential wall circumbscribing the first axial face; the outer circumferential wall being groove-free; the first axial face defining at least a first sealing groove; and a sealing gasket oriented in the first sealing groove; the sealing gasket forming a seal between the housing and the baffle plate. Methods of constructing, installing, and servicing includes fluids filters of the type described.

Abstract: There can be obtained an ecological filtration apparatus providing a sufficient function of precise filtration while contributing to saving resources and minimizing refuse. The filtration apparatus includes a housing having an inlet and an outlet, an outer cylinder fixed to the housing, and a cartridge filter formed mainly of a cylindrical filter, an inner cylinder and end caps. The cartridge filter is detachably attached to the housing, housed in the outer cylinder, blocking a channel extending from the inlet to the outlet.

Abstract: The present invention provides a hollow fiber membrane module of immersing type in which it is difficult for polluted substances to accumulate between hollow fiber membranes, and increase in pressure difference, reduction in flow rate and inter-fiber clogging can be prevented for a long time period. The module is provided at its both ends with water collecting portions having water collecting plates, and hollow fiber membranes are connected to the water collecting plates in such a manner that the hollow fiber membranes are not in contact with each other, and the hollow fiber membranes are mounted between the plates in a relaxed condition.

Abstract: An agricultural or industrial water filter comprises a spin plate, a flow distributing sleeve, and a cone basin. The spin plate includes fluid passageways disposed at a 20 degree angle relative to the axis of the filter. The flow distributing sleeve is disposed in between the screen and the filter chamber. The screen may be oversize with a screen area that is a multiple of the screen area of a standard screen. The sleeve comprises a plurality of axial slots which are more narrow at the proximal side and wider at the distal side. The end cap is coupled to a bottom of the filter chamber and disposed adjacent to a bottom of the screen. The end cap comprises a cone coupled to the top of a basin. The cone extends upwardly into the space within the screen. A narrow annulus with a small cross-sectional area is formed between the bottom edge of the cone and the top of the basin. The basin includes a flush tube to flush out particles collected in the basin and to cause a high velocity flow through the annulus.

Abstract: The present invention involves a plate-shaped filter holder for use with a sterilizing container. The filter holder comprises a peripheral outer pressure rim, a central pressure region, a mounting device for fixing the filter holder on the sterilizing container and including webs between the outer pressure rim and the central pressure region which leave open breakthroughs therebetween. In order to prevent undesirable deformations in the filter holder, the webs extend at least partially in a direction which comprises a component in the peripheral direction.

Abstract: A dialyzer is provided comprising a casing defining an interior and including a dialysate inlet and a dialysate outlet. A plurality of fibers are located in the interior of the casing and define a fiber bundle. A dialysate inlet fluid channel is provided in fluid communication with the dialysate inlet and includes a plurality of flutes that extend into a portion of the fiber bundles, the flutes define an opening for allowing dialysate to flow from the inlet fluid channel into the interior of the casing. Methods of providing dialysis are also provided.

Abstract: A liquid filter (10) housing an annular filter element (16) has an annular space (24) between the filter element and the housing and viewable through the housing such that an operator can see the level of liquid in the annular space as an indication of when to replace the filter element, the higher the level of liquid in the annular space the greater the pressure drop across the filter element. The rise in liquid level in the annular space is delayed for applications where the filter element is otherwise changed prematurely and has a longer life than otherwise indicated by the rising liquid level in the annular space. The delay is provided by a liquid and vapor impermeable sleeve (50) trapping vapor. In a further aspect, the sleeve is provided with apertures (70, 72, 74, 90, 92) filled by liquid-soluble buttons (76, 78, 80, 94, 96) providing filter element change interval indication, including advance sequential indication.

Abstract: This application discloses liquid chromatographic system including units selected from: a) a block (4) for distributing a liquid flow to a vessel (8), the characteristics being that there are through passing channels (7) comprising a narrow part (7a) and a widening part (7b), optionally with one check valve function per channel; b) a predistributor comprising a network of pipes starting at a pump (1), the characteristics being that the branches are narrowing down when going from the pump to the end pipes (3), and that each end pipes (3) have constriction means (19) providing for a significant pressure drop; c) a distributor with a distributor chamber (9) having an inlet pipe (11) equipped with sprinkler means (20); d) a tiltable chromatographic vessel (8) having a valve (15, 42) in its top and being possible to tilt 180° thereby facilitating emptying through the valve; the individual subunits and their use are also claimed.

Abstract: A filtering device for a spinning head for producing plastic threads. The spinning head has a housing in which the plastic melt flows through a filter element under pressure before exiting the spinnerets. The filter element is provided with a filtering material that is subjected to an axial contact pressure through a distributor device, according to the degree of pressure of the melt. This contact pressure acts upon the sealing edges of the filter element to close the sealing gaps. The special geometrical configuration of the filter element and/or its elasticity guarantee advantageous filtering in terms of energy. The filtering system is resistant to pressure and provides good, permanent sealing.

Abstract: A filter arrangement includes a filter assembly, a filter housing, a seal member, and a moisture separator. The filter assembly has opposite first and second ends, a first axial length between the first and second ends, and a plurality of flutes. Each of the flutes has a first end portion adjacent to the filter assembly first end, and a second end portion adjacent to the filter assembly second end. Selected flutes are open at the first end portion and closed at the second end portion and other selected flutes are closed at the first end portion and open at the second end portion. The filter housing circumscribes the filter assembly. The seal member at least partially circumscribes the filter assembly. The seal member seals a joint between the filter assembly and the filter housing. The seal member also helps to secure the filter assembly within the filter housing.

Abstract: A magnetic fluid filter for filtering metallic particles from a fluid flow system. The filter comprises a magnetic array, a central support for the magnetic array, and arm pieces for positioning the effective range of the magnetic array in a fluid flow environment. The magnetic array includes a plurality of disc shaped magnets arranged with poles in opposition, interleaved with the arm pieces and disc shaped pole pieces.

Abstract: An apparatus for the separation of fluid mixtures into a permeate and a retentate comprises separation modules each having fluid containment chambers stacked therein. Each fluid containment chamber is defined by a pair of selectively permeable membranes having their active surfaces facing inwardly toward one another, with a gasket sandwiched therebetween in sealing engagement with each membrane. A channelled support plate is positioned adjacent to the outside surface of each membrane. The channels in the support plates fluidly communicate with a housing, thereby allowing negative pressure from the housing to be brought into direct contact with the outside surface of each selectively permeable membrane. The fluid mixture is pumped into each fluid containment chamber at one end and moves across the active surfaces of the membranes toward a retentate receiver positioned at the opposite end. In doing so, permeate is drawn out through both membranes into the channels and the housing.

Abstract: A device and a method are described, which are used for precipitating beverage sediment from the rinsing mixture of beverage production machines and which comprise a rinsing conduit, a sediment receptacle and a filtering means. In order to design a device of this type in a structurally simple manner such that it can be serviced more easily, it is suggested that the filtering means should comprise a first and a second filter which are arranged one after the other when seen in the direction of flow of the rinsing mixture and which are each provided with filtrate discharge means and that a flow connection for the rinsing mixture discharged from the rinsing conduit and for the filter cake precipitated on the first filter should be provided, said flow connection bypassing said first filter and leading into the sediment receptacle.

Abstract: The present invention relates to a chromatography column 1 in which the net 129 and/or bed support 131 is integrally joined to a net retaining means, preferably a sleeve 135 that protrudes through the column end plate 5, and/or to a net retaining circumferential ring. Different net retaining means are also presented.

Abstract: The present invention is an adsorber membrane and a device containing one or more such membranes. Both the membrane and the device have a Peclet number (Pe) of at least 100. The membrane and the device are designed for the removal of trace contaminants in protein containing streams such as exist in the biopharmaceutical industry. A preferred membrane has tight pore size distribution and high permeabilities that allow for high throughput separations. A device of the present invention can contain a flat sheet membrane such as a pleated filter, a tangential flow filter or a spiral wound filter. Preferably, the device is formed in a stacked disk arrangement where one or more layers of membrane are sealed to each of the two large surface of the disk. One such device is formed of a series of disks, each disk having eight layers of membranes sealed to each of the two large surfaces of the disk. These disks are placed within a sealed capsule having an inlet on one end and an outlet on the other.

Abstract: A dialyzer is provided comprising a casing defining an interior and including a dialysate inlet and a dialysate outlet. A plurality of fibers are located in the interior of the casing and define a fiber bundle. A dialysate inlet fluid channel is provided in fluid communication with the dialysate inlet and includes a plurality of flutes that extend into a portion of the fiber bundles, the flutes define an opening for allowing dialysate to flow from the inlet fluid channel into the interior of the casing. Methods of providing dialysis are also provided.

Abstract: A fuel filter includes a pair of housing portions defining an interior cavity. A filter element is provided in surrounding relation to a fuel pump. A diverter plate assembly supported in the housing in sealing relation with one of the housing portions, the pump and the filter element, includes a bypass valve with a ball member. The bypass valve is normally closed when the pump is operational, and fuel flow passes from the inlet, through the filter element, and through the pump to the outlet. When the pump is not operational, the bypass valve opens, and fuel flow passes from the inlet through the filter element, and then directly to the outlet, bypassing the fuel pump. The diverter plate assembly includes a segmented collar that couples the assembly to one of the housing portions; a lip seal sealing to the pump; an outer rim that seals to one of the housing portions; and an annular flange that seals to the filter element.

Abstract: Dialyzers having an improved header design providing an improved flow of fluid, e.g., blood, into the interior of the dialyzer and specifically to the fiber bundle are provided. The dialyzer inlet header comprising a body that defines, at least in part, an end of the dialyzer. The inlet header includes an inlet channel providing fluid communication from an exterior of the dialyzer to an interior of the dialyzer, the inlet channel defining a fluid flow path that is axial to a fiber bundle located in the interior of the dialyzer. The dialyzer also includes at least one member for modifying the fluid flow path of a fluid as it exits the inlet channel. Methods of providing dialysis are also provided.

Abstract: A fluid filter assembly having a relief valve for visually indicating [the life of] when a filter element may be replaced. The fluid filter assembly of the present invention provides a vertical, transparent housing having a fluid inlet for communicating a fluid into the housing and a fluid outlet for communicating fluid downstream of said housing. A filter element is disposed within the housing between the fluid inlet and the fluid outlet for filtering the fluid. In [the preferred] a first embodiment, a [frusto-conical] divider is connected to the top of the filter element and extends downward adjacent a bottom portion of the filter element wherein the fluid from the inlet rises between the filter element and the inside of the divider and between the outside of the divider and an inside surface of the housing. A relief valve is provided in the top of the filter element and is in communication with the unfiltered and filtered side of the filter element.

Abstract: A chromatography column with filters having minimal volume. A stamped screen disk is coated with fluorocarbon polymer on both sides, leaving a center area open. The fluorocarbon polymer coating serves as a gasket, providing reliable sealing for pressure up to approximately 10000 psi. The chromatography column comprises a fitting having an internal cavity. A fluorocarbon polymer coated screen is placed within the cavity. A threaded capillary tubing is screwed inside the cavity. At the end of the capillary lies a compression screw solvent tubing connection.

Abstract: The present invention 10 discloses a plastic two-piece filter restraint housing 38 having a spring 32 within each two post portion of the device which spring is held therein when the portions of the restraint are joined together. The housing 38 utilizes four pivotal end tabs 16 that are removable, pivotal, circular wedge angled supports 16 or optional straight wedge shaped supports 40 that will accommodate the standard circular or square coffee filter holder assembly 20. The filter device of the present invention keeps a coffee filter from collapsing while brewing automatic drip coffee by compressing the tabs 16 on the device, inserting them inside the coffee filter 18 and holder assembly 20 and then releasing the tabs 16 of the device so that they will retain the filter 18 firmly in position. The interchangeable tabs 16, 40 will accommodate a circular or square type filter assembly.

Abstract: A water treatment and recycling system is provided having an aeration chamber, a reaction chamber, a water tank, and a plurality of pumps. The water tank houses the treated water and is the supply source for supplying water to different water needs. The first pump receives waste water from a waste source, such as a toilet, and pumps it into the aeration chamber. The aeration chamber initially treats the water and passes the contents therein via a second pump to the reaction chamber. The water is secondarily treated by the reaction chamber and thereafter pumped into the water tank. The first pump also receives a continual supply of treated water from the water tank. The aeration chamber and reaction chamber contains therein a plurality of specially treated wood chips, and a bio-colony consisting of different microbes and bacteria introduced into the wood chips.

Abstract: A filter assembly (20) for a drainage basin (22) is disclosed. The filter assembly includes a filter (28), a liquid director (32) adapted to guide liquid into the filter. The filter assembly also includes an attachment assembly (30) fastened to the filter. The attachment assembly adapted to selectively attach the filter to the drainage basin.

Abstract: A well screen is provided which includes a line extending therethrough. In a described embodiment, the line may be a hydraulic line, an electric line, a fiber optic line, or another type of line, and the line may be embedded in a sidewall material of the well screen. The well screen may be wrapped about a reel as a part of a coiled tubing string, and the well screen may be expandable when deployed in a wellbore. In another embodiment, the line may be positioned between a filter media and an outer shroud of the well screen.

Abstract: A device is described for mechanically cleaning fluids, especially for [cleaning] the cooling water that enters a heat exchanger, having a pipe segment (12) as housing, a sieve element (20) that essentially covers the cross section of the pipe, and a suction device (20) on influx side (22) that is capable of moving around an axle (18), the purpose of the device being to aspirate the surface area of sieve element (16) and in this manner clean it, wherein, according to the invention, sieve element (16) forms a partially cylindrical casing having a cylindrical axle (56) perpendicular to axle (24) of pipe segment (12), wherein the open part of cylindrical casing (16) is arranged toward influx side (22) (FIGS. 1, 2).

Abstract: A liquid shield and a funnel in combination with the liquid shield is disclosed. The funnel includes at least one side wall defining a cavity within the funnel and it has a drain opening generally on the bottom surface of the funnel. A rim along the upper edge of the side wall defines a mouth of the funnel. A handle is provided on the funnel. Spaced apart receptacles are positioned on the side wall in relation to the handle. The liquid shield includes a body portion which extends over at least a portion of the cavity of the funnel and is positioned adjacent the handle. The shield includes attachment portions extending from the body which are engageable with the receptacles for removably retaining the shield on the funnel. A flange extends from a portion of the shield and abuts an inside surface of the side wall of the funnel generally blocking passage of material between the shield and the funnel.

Abstract: The method relates to bringing about a mixed state of at least two fluids in a second part (34) of a line, which have flowed through a first part (32) of this line. This is attained in that a fractional flow of the fluids is withdrawn from the second part (34) of the line at a point (43), and this fractional flow is resupplied to the second part (34) of the line at a different point (45). A employment to avoid clogs in modules in a crossflow filtration system is described, along with apparatuses for performing the employment.

Abstract: A pressure filter includes two continuous mating surfaces movable relative each other and a filter medium capable of being disposed therebetween. A surface, provided for supporting the filter medium, is bounded by and is substantially coplanar with one of the continuous mating surfaces. The filter further includes a shallow inlet cavity, bounded by the other of the continuous mating surfaces, and an inlet distributor in communication with the inlet cavity. The inlet distributor includes at least one opening and may be of internal or external type. When the mating surfaces are pressed together, a shallow filtration chamber is defined by the inlet cavity and the filter medium. The filter apparatus may include a plurality of shallow filtration chambers, stacked one above the other, and constructed as described above.

Abstract: A system is provided for withdrawing permeate from a substrate. The exemplary system includes a vessel configured to contain substrate, two or more compartments configured to receive substrate from the vessel and to return a portion of received substrate to the vessel, and a filter positioned at least partially within each of the compartments and configured to separate permeate from substrate during operation of the filter. At least one of the compartments is configured to contain cleaning solution and substantially prevent cleaning solution from contacting substrate in the vessel during cleaning of the filter. The exemplary system is configured for cleaning the filter in situ in at least one of the compartments while operating the filter in at least one other of the compartments. A method for adapting a filtration system for cleaning thereof and a method for withdrawing permeate from a substrate using a filtration system are also provided.

Abstract: Filtration device comprising an inlet for the supply of the liquid to be filtered and means for holding a filter crossing the flow path beyond the inlet. The inlet opens into an annular intermediate passage which narrows down in the flow direction to an annular slit. The inlet opens into the annular passage in a tangential direction. The device comprises a support screen for support of a removable filter, and a dome leaving a small gap between its outline and the support screen when it is positioned in the support screen.

Abstract: A cartridge filter includes a cartridge filter including an upper annular groove in an outer periphery thereof a top cover mounted to seal an open upper end of the cartridge filter, and a C-shape upper bracket mounted in the upper annular groove of the cartridge filter. A screw and a nut are provided for securing ends of the upper bracket together. The upper bracket includes a plurality of annular spaced pivot seats. A plurality of swivel studs are provided and each includes a first end pivotally attached to each pivot seat. Each swivel stud further includes a threaded second end and a handwheel threadedly engaged on the threaded second end for securing the top cover in place. The upper bracket further includes a flange extended radially outward for preventing deformation in the ends of the C-shape upper bracket and the pivot seats.

Abstract: Provided are a filtration apparatus for a polycarbonate comprising a filtration container, a flange plate, one or more leaf disc-type filters, a filter press and a center pole having an integral construction with the filter press as constituting elements, these components having specific structures, and a process for manufacturing a polycarbonate using the filtration apparatus. Foreign materials are effectively removed by using the polymer filter, and at the same time, discoloring, crosslinking and gel formation, which would occur in the filter, are suppressed; and as a result, a polycarbonate having excellent quality can be manufactured.

Abstract: An arterial blood filter device for use during cardiovascular surgery. The device includes an outer housing having a top and bottom section, an inner housing, and a filter element. The filter element is disposed within the outer housing, and the inner housing is disposed between the filter element and the housing. The inner housing is separate from the outer housing and extends the entire axial length of the filter element. Fluid enters the device through an inlet. The majority of the fluid then rises in a centripetal motion where any large air bubbles exit through a vent at the top section of the outer housing. The fluid then flows through openings in the top and bottom of the inner housing. After entering the inner housing, the fluid passes through a filter element, where filtration takes place, and exits through the bottom section of the housing through an outlet.

Abstract: A filter for a carpet cleaning device and method for using therefor includes a casing and a partition that extends into the casing to define a primary chamber and a secondary chamber within the casing. A main siphon with an inverted U-shape is mounted in the partition. One end of the siphon extends into the primary chamber while the other end of the siphon extends into the secondary chamber. An auxiliary siphon is located within the secondary chamber, and a pump is attached in fluid communication with the auxiliary siphon. During operation, a wastewater/debris stream is transported into the filter. The stream collects in the primary chamber and establishes a primary fluid level therein. As the primary fluid level rises, carpet fibers and other insoluble debris settle in the primary chamber. Once the primary fluid level is even with the siphon, wastewater fluid is transported from the primary chamber to the secondary chamber and establishes a secondary fluid level therein.

Abstract: A blood processing apparatus which retains little residual blood is provided by a hollow fiber flux fixed to a housing by a partition, with the end portion opened. A blood port provided with a blood intake is attached to the opened end plane. The angle of the blood intake interior wall of the blood port has an inclination &thgr; of 1.5° or less as to the center axis of the blood port. The distance h of the interior face of the blood port and the flux-holding partition it faces is 0.08 D≦h≦0.13 D where Q represents the intersection between a hypothetical line which passes through the end portion P of the inner plane of the blood port and is orthogonal with the partition and a hypothetical extension line from the ceiling plane of the blood port, h represents the distance between the partition and the intersection Q, and D represents the diameter at the end portion of the inner plane of the blood port. The blood processing apparatus is used for blood purifying, dialysis, ultrafiltration, and the like.

Abstract: A tangential flow filtration apparatus is provided which includes a liquid feed reservoir and a tangential flow filtration module connected together by manifolds. The manifolds eliminate the need for tubular conduits, thereby effecting a reduction in recirculation volume for the apparatus.

Abstract: Device and process for separation of absorbent/floating material from product mixes by means of float/sink separation with a float/sink separator which exhibits a separator tank filled with a liquid separating medium, in which context there are provided devices for generation of a surface flow in the separating medium, which propel the absorbent/floating material as a floating fraction from a pickup point mix to an output point for the floating fraction, along the surface of the separating medium at such a speed as to inhibit absorption of the separating medium.

Abstract: A biofiltering device for treating wastewater comprises a housing having an inlet for receiving the wastewater to be treated and an outlet for discharging the treated wastewater, a bed of peat disposed inside the housing between the inlet and outlet, the peat defining a biofiltering medium having a predetermined biofiltering capacity, and an air vent for aerating the peat. The device further includes a fluid flow control system arranged over the bed of peat and in fluid flow communication with the inlet, for distributing the wastewater through the bed of peat in a manner such that when the wastewater enters the system at a flow rate greater than the biofiltering capacity of the peat, the wastewater discharged from the system flows through the bed of peat at a flow rate no greater than the biofiltering capacity. The biofiltering device according to the invention enables one to efficiently treat incoming wastewater irrespective of its flow rate.

Abstract: The invention relates to improved cross-flow filter cassettes for the filtration of liquid media, which are used in cross-flow filtration devices of varying pump outputs and can be fitted with non-reinforced membranes. The cassettes comprise at least one retentate separator in which the inlets to the open perforations designed to form one type of channel, for example for retentate discharge, are larger than the inlets to the open perforations designed to form another type of channel, for example for fluid feed. In comparison with known cross-flow filter cassettes, the cross-flow filter cassettes of the invention allow retentate flows required to achieve equal filtration output at equal pressure differential on the retentate side at least 1.8 times lower. This significantly reduces the energy input required for pumping to conduct cross-flow filtration.

Abstract: A filter arrangement includes a filter assembly, a filter housing, a seal member, and a moisture separator. The filter assembly has opposite first and second ends, a first axial length between the first and second ends, and a plurality of flutes. Each of the flutes has a first end portion adjacent to the filter assembly first end, and a second end portion adjacent to the filter assembly second end. Selected flutes are open at the first end portion and closed at the second end portion and other selected flutes are closed at the first end portion and open at the second end portion. The filter housing circumscribes the filter assembly. The seal member at least partially circumscribes the filter assembly. The seal member seals a joint between the filter assembly and the filter housing. The seal member also helps to secure the filter assembly within the filter housing.

Abstract: The present invention is directed to a plate-and-frame type membrane module inserted durable balls using vortex flow, and the membrane module can reduce concentration polarization, cake or gel layer and membrane fouling which generally occur in processes using plate-and-frame type membrane. Thus, the use of a membrane module according to the present invention can prolong the period for cleaning of a membrane module and the exchange period of a membrane module, as well as maximize a passing amount without decreasing a quality of permeate.

Abstract: A water filtration system has a tank partially filled with a floating bead filtration media. A cylindrical diffuser is disposed in the tank and extends from the upper portion to the lower portion thereof. The diffuser in internally partitioned into a lower chamber and an upper chamber and each chamber has slots that communicate with the tank. An supply conduit delivers soiled water from a pond to the lower chamber of the diffuser. The soiled water flows through the openings in the lower chamber and into the tank, upwardly through the filtration media where it is filtered, and into the upper chamber through the openings formed therein. An return conduit delivers filtered water from the upper chamber of the diffuser back to the pond.

Abstract: A process for minute dosing of effluent in a gravity media filter includes filtering incoming sewage in a pre-filter to produce a liquid effluent filtered to less than 100 microns, and pumping the effluent from the pre-filter to a pulse-feeding device preferably comprising a pressure vessel having a controlled pulsing unit. Effluent in the vessel is intermittently discharged in short pressure pulses volume controlled at preselected time intervals. The effluent from the pulse feeding device is forward pulse-fed to an array of drip irrigation emitters spread out over a surface area of a gravity filter containing a filter media such as a sand and gravel filter. Small doses of effluent are fed to the surface area of the gravity media filter by the emitters at a rate substantially less than a standard drip irrigation rate, owing to the intermittent pressure pulses. One preferred drip rate is greatly less than 2 liters per hour.

Abstract: A bipolar electrolytic cell can include, as a manifold, a spiral manifold assembly. This spiral manifold assembly will comprise a first outer assembly member, a second outer assembly member and a center assembly member. The overall structure can provide reduced loss of metal or gas and minimal loss of electrical current during an electrolytic process.