Abstract: The present application relates to a molecular exchange device (1) for use with an analysis and control apparatus and a method of manufacturing a molecular exchange device.

Abstract: A method of filtering solids from a liquid suspension comprising providing a pressure differential across the walls of permeable, hollow membranes (5) immersed in the liquid suspension contained in a vessel (8), the liquid suspension being applied to the outer surface of the porous hollow membrane (5) to induce and sustain filtration through the membrane walls. Some of the liquid suspension passes through the walls of the membranes (5) to be drawn off as permeate from the hollow membrane lumens, and at least some of the solids are retained on or in the hollow membranes or otherwise as suspended solids within the liquid surrounding the membranes (5).

Abstract: The invention offers a separation membrane element that can be produced by a method in which a membrane-sealing portion is formed by, first, immersing end portions of hollow-fiber-shaped porous separation membranes in a resinous liquid and, then, curing the resin, that has a feature in that the membrane-sealing portion is formed of a casting resin and pores of the hollow-fiber-shaped porous separation membranes are filled with a pore-filling resin at the portion at which the membranes are in contact with the membrane-sealing portion, so that the casting resin is strongly bonded with the pore-filling resin, and that has the hollow-fiber-shaped porous separation membranes whose basal portions are flexible, so that breakage of the basal portions and leakage of gas or liquid are less likely to occur when in use; a separation membrane element that has a feature in that in the membrane-sealing portion, at least the surface at a side that is to be in contact with a liquid to be treated is formed of a thermosetting f

Abstract: A bioartificial kidney equivalent and a process for producing the bioartificial kidney equivalent. The hybrid bioartificial kidney comprises human proximal and distal renal tubule cells grown on particular synthetic membranes.

Abstract: A system is provided that includes one or more acoustic microfilters through which is flowed a mixture of a fluid and a particulate to selectively filter particles from the fluid. Also included are one or more phononic crystal units coupled to the acoustic microfilter(s) to further selectively filter particles from the fluid. Related apparatus, systems, techniques and articles are also described.

Abstract: The present invention relates to high cut-off hemodialysis membranes for the treatment of chronic hemodialysis (CHD) patients, with the potential to improve long-term survival of these patients by reducing the risk of cardiovascular disease, through down-regulation of monocyte activation in the blood. Monocytes are the major circulating blood cells involved in the progression of cardiovascular disease. High cut-off hemodialysis in chronic dialysis patients results in a sustained decrease in expression of monocyte cell-surface proteins that direct the movement of these cells from the blood to the walls of blood vessels, where they promote the progression of arterial disease (atherosclerosis) that leads to cardiovascular disease (CVD); heart disease, strokes and peripheral vascular disease.

Abstract: A compact fluid purification device includes a housing having an inlet for receiving unfiltered liquid and an open end and a first valve disposed within the inlet and being configured to only permit unfiltered liquid to flow into a hollow interior of the housing. The device has a plunger that is movable between a fully extended position and a fully retracted position. Movement of the plunger toward the fully extended position causes unfiltered liquid to be drawn into the interior of the housing and the device includes a second valve disposed within the outlet and being configured to only permit filtered liquid to be discharged from the plunger housing. The unfiltered liquid is filtered when the plunger is moved toward the fully retracted position causing the unfiltered liquid in the interior to flow into the inside of the filter elements and then across the filter elements and into the outlet.

Abstract: A hollow fiber membrane module, a hollow fiber membrane module unit, and a water treatment method. The module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas. The module and the unit have excellent durability. The hollow fiber membrane module is formed so that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit.

Abstract: An oil circulation system and method for continuously purifying engine oil including an engine operably connected to an oil reservoir, wherein at least one stream of oil is conveyed from the oil reservoir to the engine via a conduit, and circulated through the engine and conduit via engine operating pressure and/or one or more pumps, and at least one membrane unit positioned in a path of the oil stream such that oil containing dissolved/emulsified droplets of water is fed continuously through the membrane unit. A cross flow hollow fiber module adapted to be positioned in a system for continuously purifying engine oil, the hollow fiber module having a central feed distributor tube, hollow fiber membranes positioned around the central feed distributor tube, end caps with ports for receiving and emitting a flow of sweep air, and optionally a shell casing, wherein the central feed distributor tube includes openings sized and positioned to allow oil to flowing into the feed distributor tube to flow out radially.

Abstract: The invention relates to a device for filtering a liquid, in particular water, comprising membrane filtering modules, connected by pipes to valves for controlling the flows of liquid travelling towards the modules and coming from same, including a first block made up of an assembly (14a) of membrane filtering modules, a second block made up of a system of valves (14b), and a third block made up of a group of intermediate pipes (14c) comprising an interface between the system of valves (14b) and the assembly of modules (14), only the interface (14c) requiring to be changed when changing the type of filtering modules, while the system of valves (14b) and the assembly of modules (14a) remain unchanged, except when changing the type of modules.

Abstract: A hollow fiber membrane module and a puller used therefore is disclosed, wherein each individual hollow fiber membrane module can be easily pulled out from a filtering apparatus provided with a plurality of hollow fiber membrane modules if it is required to be replaced or repaired. At this time, the hollow fiber membrane module comprises a hollow fiber membrane; and at least one header to which the hollow fiber membrane is potted, wherein the header includes a first lateral side to which the hollow fiber membrane is potted and a second lateral side opposite to the first lateral side, and wherein an engaging plate is formed at the second lateral side. Also, the puller comprises a main body; and a hooking member, extending from an end of the main body, formed in a shape suitable for being caught in the engaging plate.

Abstract: The hollow fiber membrane module has a hollow fiber membrane bundle composed of a plurality of hollow fiber membranes with an adsorption function, a housing that houses the hollow fiber membrane bundle, and partition members that partition the hollow fiber membrane bundle into a plurality of small bundles at an end of the hollow fiber membrane bundle, the partition members having penetrating sections that penetrate in the lengthwise direction of the hollow fiber membranes. The volume fill factor of the hollow fiber membranes is at least 30% and less than 70%. This can secure throughput capacity for the hollow fiber membrane module, while maintaining consistent adsorption capacity per unit membrane volume, thus ensuring high scalability.

Abstract: The present invention is directed to an alternative compact portable filtration device that can be used in remote locations and includes a single filtration cartridge that provides redundant filtration of the fluid (water). In particular, the device is a dual stage ultrafilter cartridge (apparatus) that is constructed and designed to provide a portable device that can be used in the field, such as during camping or military assignment, and offers two filtration stages (redundant filtration) within a single housing.

Abstract: A permeate adapter is provided. The permeate adapter may be used within a pressure vessel. The permeate adapter includes a front portion and an oppositely disposed back portion. The front portion includes a permeate opening for receiving an end of a permeate passage tube of a membrane cartridge and for being in fluid communication with a permeate reservoir. The front portion and the back portion each include one or more fluid openings. Fluid passageways are connected between the one or more front portion fluid openings and the back portion fluid openings. The fluid passageways receive an end of a membrane cartridge at the front portion. At the back portion, the fluid passageways are in fluid communication with a fluid reservoir adjacent the back portion of the permeate adapter.

Abstract: A hollow fiber membrane fluid transport device and its method of manufacture are disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting method described herein, utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film.

Abstract: A membrane module includes at least one hollow fiber membrane; a first resin layer formed around an end of the at least one hollow fiber membrane; and a second resin layer chemically bound to the first resin layer, wherein the second resin layer is of greater flexibility than the first resin layer.

Abstract: A method of operating a membrane filtration module (5), the module (5) including one or more membranes (7) extending longitudinally between vertically spaced upper and lower headers (8, 9) into which the ends of the membranes (7) are potted. The membranes (7) have a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. At least one of the upper and/or lower headers (8, 9) has one or more openings (10) therein and the method including flowing the feed, at least in part, through the one or more openings (10) for application to the membrane wall. Apparatus for performing the method is also disclosed.

Abstract: A tubesheet, modules incorporating tubesheets and methods for making and using the same. In one embodiment the invention includes a tubesheet comprising: i) a plurality of aligned semi-permeable hollow fiber membranes each comprising a cylindrical porous structure surrounding a lumen and extending between a first and second end and further comprising a first segment located adjacent the first end and a second segment located adjacent to the second end and ii) a block of potting material including an interfacial surface. The first segment of the hollow fiber membrane is embedded within the block of potting material and the second segment extends from the interfacial surface of the block. The tubesheet further comprises a penetrating extension of potting material within the porous structure of the second segment of the hollow fiber membrane that extends along a length from the interfacial surface of the block to a distal end.

Abstract: A hollow fiber membrane type fluid treatment device having at least a body portion of tubular housing containing a hollow fiber membrane bundle. In the hollow fiber membrane type fluid treatment device, an inner surface of a body portion of the tubular housing at a side of a treatment liquid inlet has a body straight portion and an end tapered portion which increases in diameter toward an end face of the housing body portion, the hollow fiber membrane is arranged so that a distance between the hollow fiber membranes is gradually increased toward the end face on the treatment liquid inlet side along a taper of a tapered portion of the inner surface of the housing body portion, and a liquid to be treated flows within the hollow fiber membranes and a treatment liquid flows outside of the hollow fiber membranes.

Abstract: A membrane module for an immersed operation has a fiber bundle of hollow fiber membranes which are cast into a headpiece and in immersed operation are surrounded by a liquid to be filtered. The module has a permeate collection chamber connected to the headpiece with an outlet for permeate draining from the interior of the hollow fiber membranes, and a gas supply having a pipe guided by the headpiece. The pipe terminates in the interior of the fiber bundle and has a gas outlet for a gaseous medium, which after the transfer from the pipe to the liquid to be filtered rises as bubbles between the hollow fiber membranes. The fiber bundle is divided into sections and free spaces remain between the sections which extend from the pipe to the outer circumference of the headpiece and promote an inflow of the liquid into a foot area adjoining the headpiece.

Abstract: A micro fluidic system comprising at least one tube (1), a membrane (3) and at least one fitting member (4). The fitting member (4) is positioned around the membrane (3) and an end part (2) of the tube(s) (1), thereby fitting the membrane (3) to the end part(s) (2). The fitting member(s) (4) is/are made from a shrinkable material, and it/they is/are fitted tightly around the membrane (3) end part(s) (2). This is obtained by causing the shrinkable material to shrink, e.g. by heating the material, while the fitting member (4) is positioned around the membrane (3) and the end part(s) (2). It is an advantage that the fitting member (4) is made from a shrinkable material because this provides the possibility of fitting the membrane (3) tightly to the end part(s) (2) in an easy and cost effective manner. The micro fluidic system is very suitable for use in a probe, such as a dialysis probe. Also claimed is a method of manufacturing the micro fluidic system.

Abstract: Filtration membrane comprising polymeric nanofibers and/or microfibers attaching dendrimer component presenting reactive sites selective for chemicals to be filtered, and related nanofibers and microfibers, composite materials, compositions, methods and system.

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

Abstract: The present disclosure relates to a diffusion and/or filtration device, such as a dialyzer, hemofilter, or ultra-filter, having improved flow characteristics. The invention also relates to an end cap for the device.

Abstract: A hollow fiber membrane element may be used in a pressure vessel similar to those used with spiral wound elements, optionally as a replacement for a spiral wound element. A connecting sleeve is used to connect the insides of adjacent elements to each other or to one or more fittings in communication with the outside of the pressure vessel. The element has hollow fiber membranes suspended between two potting heads spaced apart by a cross flow tube that is open at the outside faces of both potting heads. The potting heads are each adapted to slide into an end of a connecting sleeve. A module has one or more hollow fiber elements located inside of a pressure vessel. At least one port is provided in communication between the outsides of the one or more elements and the outside of the vessel. An aerator may be provided on the bottom of the vessel.

Abstract: A reverse osmosis system and method for operating the same includes a pressure tank having a first end and a second end, the pressure tank has a first volume adjacent to the first end and a second volume adjacent to the second end and a third volume between the first volume and the second volume and a fluid passage fluidically coupling the second volume to the first volume. The reverse osmosis system also includes a plurality of membranes disposed within the third volume generating permeate and a permeate manifold receiving permeate from the membranes and fluidically communicating permeate out of the pressure tank. A feed line couples feed fluid into the pressure tank. A first pump pressurizes the feed line. A second pump is disposed within the tank and circulates brine fluid from the second volume through the fluid passage.

Abstract: A method of controlling fouling in a membrane filtration system (5) of the type where gas is used to clean or scour the membranes (6) wherein the method includes supplying the gas to the system with a continuously variable flow rate. A continuously variable valve arrangement (17) is also disclosed.

Abstract: A membrane module (5) including a plurality of porous membranes (6) extending in an array and mounted, at least at one end, in a header (8). The header (8) has a number of distribution apertures (11) for distributing a fluid into the module (5) and along a surface or surfaces of the membranes (6). An elongate chamber (10) having one open end (13) and another end is in fluid communication with the distribution apertures (11) for distributing the fluid to the distribution apertures (11).

Abstract: A filter device for a motor vehicle has a filter element with a porous ceramic support body provided with one or more passages for receiving a liquid to be filtered and filter membranes formed on inner walls of the passages. The liquid to be filtered passes through the filter membranes into the support body and exits from the support body through a circumferential surface of the support body. At least one compensation element is arranged at an end face of the support body. The compensation element is elastically deformable for providing an additional liquid volume that is generated when the liquid expands due to freezing.

Abstract: The present invention is directed to an alternative compact portable filtration device that can be used in remote locations and includes a single filtration cartridge that provides redundant filtration of the fluid (water). In particular, the device is a dual stage ultrafilter cartridge (apparatus) that is constructed and designed to provide a portable device that can be used in the field, such as during camping or military assignment, and offers two filtration stages (redundant filtration) within a single housing.

Abstract: It is intended to provide a highly reliable medical device, for example, hollow fiber membrane-type medical device, which can effectively prevent the occurrence of dielectric breakdown in an electron beam irradiation sterilization step. The present invention provides a hollow fiber membrane-type medical device comprising: a container having an inner space molded with an insulating material; a filter medium loaded in the inner space; an inlet provided on a container wall surface defining the inner space and intended for fluid influx into the container; an outlet provided on the container wall surface defining the inner space and intended for fluid efflux from the container, wherein the inlet and/or the outlet have a portion consisting of a polymer material having volume resistivity of 5×1013 ?·cm or smaller, and the medical device has been irradiated with an electron beam.

Abstract: Multiple water purifier modules are stacked in a rack having manifolds for each of the various water filtration functions: feed, concentrate, and filtrate. Each module connects to the rack by a quick connect for each of the filtration tubes. The quick connects are of the self-sealing type. A handle on the end of the module away from the rack has a lever for causing the quick connects to release the module from the rack while the system remains in operation. The, module can then be totally removed from the rack for testing, service, or replacement while the overall system remains in operation. Each module contains complete filtration media. The water is passed into the feed tubes under pressure where it passes into an elongated cavity filled with elongated hollow fibers. Filtrate, such as purer water, passes through the walls of the hollow fibers to an outlet, while concentrate, which is fluid with a high percent of impurities, flows from the cavity into concentrate tubes to another outlet for disposal.

Abstract: A water or liquid substance filtration device is disclosed which removes microorganisms and organic contamination and sterilizes the containers and water lines after the unit. The unit is portable, or can be mounted stationary. The unit has a five-stage filtration and sterilization system controlled by an independent onboard computer system that can link to a central computer system to keep track of all independent units. The unit will physically filter out of the water contaminants that can be reused, destroyed, or flushed down a safe drain. It can also be modified to filter for a certain size of particulate, making recovery of certain substances possible. The unit has a self-diagnostic system that can determine if the unit is operating properly and can shut down a part thereof if one of the capillary units fails. The system is hydrophilic, can run at low pressures and can be designed from low to extremely high volumes. The unit uses ozone to disinfect containers and water lines.

Abstract: The invention provides a filter module comprising an outer casing provided at each end with a respective support plate for supporting at least one filter element for obtaining a filtrate that is recovered via an outlet passage provided in the vicinity of each support plate. According to the invention, each support plate is extended at right angles by an assembly skirt for assembling to the casing.

Abstract: New fluid separation devices and absorption materials are disclosed. Hollow fibers with an axial capillary slit act as very high efficiency absorption materials, as well as high-surface-area fluid separation devices. The hollow fibers with an axial capillary slit are constructed to preferentially absorb or repel different fluids and arranged to maximize that action over a plurality of fibers to separate different fluids. These separation devices can also function as injection devices and very effective micro-reactors.

Abstract: According to one exemplary embodiment, a compact fluid purification device includes a housing having an inlet for receiving unfiltered liquid and an open end and a first valve disposed within the inlet and being configured to only permit unfiltered liquid to flow into a hollow interior of the housing. The device has a plunger received within the open end such that it slides within the interior of the housing. The plunger is movable between a fully extended position and a fully retracted position, wherein the plunger has an elongated housing that includes a filter element, such as, a plurality of hollow filter elements that are open at a distal end of the plunger housing and are in communication with an outlet that is associated with the plunger.

Abstract: A membrane cartridge in an immersion type membrane separation apparatus capable of suppressing vibrations applied to the membrane cartridge by an ascending force of membrane cleaning gas and others by firmly coupling the adjacent membrane cartridges disposed in parallel. In a membrane cartridge in an immersion type membrane separation apparatus, selvages larger in thickness than a membrane cartridge main body are formed at both sides of the membrane cartridge, and a header forming part is formed on one selvage, and a guide hole is formed in other selvage relatively, and the header forming part and the guide hole of the membrane cartridge disposed adjacently by varying the direction mutually are formed to communicate and connect with each other.

Abstract: A risk of thrombogenesis is minimized in a tubular fiber membrane filter by flowing blood or other fluid through a header manifold that ensures a minimum shear rate on the wetted surfaces without flow reversal, stagnation volumes, or a shear rate that is too high. In an embodiment, fluid is conveyed into a header space and into a manifold face at a perimeter of the header space. The header space has a progressively decreasing clearance that is minimal to provide for substantial shear rate and decreasing toward a minimum clearance in a region that is remote from the perimeter and vented by openings to the microtubular membrane fibers. Other features and embodiments are described.

Abstract: A hollow fiber membrane module characterized by having a tubular module case; a bundle of a multiplicity of hollow fiber membranes housed in the module case; adhesively fixing parts for fixing both side edge portions of the bundle in the module case in such a fashion that raw fluid can pass through the interior of the hollow fiber membranes; a permeated fluid communication part adapted for passable connection between both end faces outside the adhesively fixing parts by a pipe of diameter significantly larger than that of the hollow fiber membranes; and a raw fluid distribution supply part capable of feeding the raw fluid into the module case at one of the adhesively fixing parts, wherein the raw fluid distribution supply part has multiple raw fluid introduction holes made in hollow fiber membrane interspaces so as to be able to supply the raw fluid along the longitudinal direction of the hollow fiber membranes.

Abstract: A hollow-fiber membrane assembly having the function of preventing the membrane filaments from cracking, which comprises: hollow-fiber membrane filaments (1), protective film(s) (2) and fastening material (3), wherein the protective film (2) enwraps the outside of the hollow-fiber membrane filament(s) (1) near the end head (5), and a portion of the protective film (2) is immobilized in the fastening material (3), while the rest portion of the protective film (2) outside of the fastening material (3) is left free.

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

Abstract: A hollow fiber membrane module, a hollow fiber membrane module unit using the hollow fiber membrane module, and a water treatment method using the module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas, the module and the unit having excellent durability. The hollow fiber membrane module is formed in such a manner that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit.

Abstract: A reverse osmosis system and method for operating the same includes a pressure tank having a first end and a second end, the pressure tank has a first volume adjacent to the first end and a second volume adjacent to the second end and a third volume between the first volume and the second volume and a fluid passage fluidically coupling the second volume to the first volume. The reverse osmosis system also includes a plurality of membranes disposed within the third volume generating permeate and a permeate manifold receiving permeate from the membranes and fluidically communicating permeate out of the pressure tank. A feed line couples feed fluid into the pressure tank. A first pump pressurizes the feed line. A second pump is disposed within the tank and circulates brine fluid from the second volume through the fluid passage.

Abstract: There is provided a hollow fiber membrane module (1) comprising: a membrane bundle (20) of a plurality of hollow fiber membranes (10); a cylindrical body (30) housing the membrane bundle (20); a fixing portion (40, 50) in which at least one end of the membrane bundle (20) is fixed to the cylindrical body (30); and a raw water outflow nozzle (34) for allowing raw water to flow out from the vicinity of the fixing portion (40). Raw water supplied into the cylindrical body (30) is allowed to permeate from the outside into the inside of each hollow fiber membrane (10). A soft potting portion (42) has, in its surface to be in contact with raw water, at least one groove (43).

Abstract: A hollow fiber membrane separation device with two flow spaces, of which a first space is formed by the capillary tube passages of a hollow-fiber bundle cast at its ends into a sealing compound, and a second space is formed by a housing enclosing the fiber bundle. The first space is sealed off by caps, placed on the sealing compounds, with seals running over the peripheral areas of the sealing compounds. The housing, into which the hollow-fiber bundle is drawn, at each end of its casing has tooth-like or pinnacle-like projections formed by axial notches or indentations running out freely. The tooth-like or pinnacle-like projections have extensions extending from the sides of the projections and extending to the adjacent tooth-like or pinnacle-like projection.

Abstract: A fluid filter module including an end cap assembly disposed about at least one end of a tubular-shaped housing. The end cap assembly includes a base, fluid port and sealed boss which may optionally comprise an integrally molded structure.

Abstract: Device (5) for filtering blood including a filter unit (7) having a blood filter, an inlet (8) for blood to be filtered and being connectable to an artery of a patient and a blood outlet (9) for filtered blood and being connectable to a vein of the patient, and having a filtrate container (6,14), that encloses the filter unit (7), for receiving filtrate (12) passing through the blood filter during a filtering process and that the filtrate container (6,14) is a closed container, which in a filled state is arranged to establish a counter-pressure over the blood filter, whereby the filtering process is interrupted. The invention also concerns a system including the above device.

Abstract: A filtration device is provided having a large number of filters, each comprising a filter element and a casing. The device includes filter strings constructed so that a plurality of filters are connected in a row by header tubes, at least two rows of filter strings are further connected in parallel by a filtrate recovery collecting tube, and the filtrate recovery collecting tube is placed at a higher position than the filtrate recovery header tubes.

Abstract: In a combination including a pitcher-type water purifier and its purification cartridge, which can adsorb and eliminate chemical substances such as chlorine from raw water, eliminate bacteria, and prevent propagation of bacteria and provide safe purified water in a short period of time, even when the purified water has been stored for a long-period time, the pitcher type water purifier contains a casing divided into upper and lower parts as a raw water reservoir portion and a purified water reservoir portion, and has a purified water pouring opening in the purified water reservoir portion; and the purification cartridge has a raw water inlet in an upper face thereof and a purified water outlet in a bottom face, and adsorbent is filled in an upper layer of an interior thereof and hollow fiber membranes are filled in a lower layer thereof at an opening rate ? of 25-58%.

Abstract: A hollow fiber membrane module, a hollow fiber membrane module unit using the hollow fiber membrane module, and a water treatment method using the module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas, the module and the unit having excellent durability. The hollow fiber membrane module is formed in such a manner that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit.