Abstract: A reverse osmosis system includes a wheel formed of a hollow central hub, radial tubes fluidly connected to the central hub, semi-permeable membranes provided in each radial tube, a permeate outlet tube, and a concentrate outlet tube; a permeate collection tank; a concentrate collection tank; and a drive mechanism. The drive mechanism rotationally drives the wheel while the source liquid is supplied to the central hub of the wheel, the rotation causing the source liquid to enter the radial tubes in radially outward directions and cause pressure increase on the source liquid in the radial tubes. The pressure increase forces the source liquid through the semi-permeable membranes to separate into permeate and concentrate, the permeate being directed to the permeate collection tank through the permeate outlet tube and the concentrate being directed to the concentrate collection tank through the concentrate outlet tube.

Abstract: A reverse osmosis membrane of the present invention includes a porous support substrate (2) and a separation active layer (3) formed on a surface of the porous support substrate (2) and formed of a carbon film containing organized carbon.

Abstract: Embodiments described herein relate generally to systems, apparatus, and methods for using graphene oxide-containing membranes for separation and concentration processes. In some embodiments, a fluid component having a first concentration in a fluid mixture can be concentrated using a first distillation process to a second concentration. In some embodiments, the fluid component can be concentrated from the second concentration to a third concentration using a graphene oxide-containing membrane. In some embodiments, the fluid component can be concentrated from the third concentration to a fourth concentration using a second distillation process. In some embodiments, the fluid component can have an azeotropic concentration between the second concentration and the third concentration.

Abstract: A treatment system for performing a treatment on a patient may include a treatment fluid preparation device having a pump connected by a fluid channel to a reservoir of a source fluid, the pump conveying the source fluid from the reservoir, through a filter, and combining the source fluid with a concentrate by pumping the source fluid with the concentrate to form a treatment fluid in a batch container. The treatment fluid preparation device may have a controller that controls a heater, the pump, and a memory. The controller starts the heater to warm the treatment fluid in the batch container at a time that is responsive to the treatment time stored in the memory. The controller also detects a pressure property of the filter to determine its integrity and outputs an indication of a failed batch if the pressure property indicates the integrity of the filter is insufficient.

Abstract: A connector arrangement (10) for connecting to a fluid chamber (6) of a blood treatment unit (4) for extracorporeal blood treatments. The connector arrangement (10) includes a connector device (11) with a connector body (47) comprising a port opening (43) and an interior wall (50) defining a port space (39) designed to receive a first fluid port (8A) of the fluid chamber (6). The connector device (11) also incorporates a fluid path (35a) extending from the port space (39) to a first end opening (51) of the connector device (11), and an air path (36a) extending from the port space (39) to a second end opening (52) of the connector device (11), wherein the fluid path (35a) and the air path (36a) are separate paths. Also a system (1) for extracorporeal blood treatment including the connector arrangement (10) and a method for priming the fluid chamber (6).

Abstract: A dialysate solution container includes a flexible first bag body. The dialysate solution container further includes a second bag body which has a mixing region for mixing a first powdered pharmaceutical agent and water at a lower end portion of a second interior. The second bag body further has a communication pipe that places the exterior of the second bag body and the second interior in communication, and a first filter which is in communication with a first interior of the first bag body. A first end of the communication pipe is capable of being connected to a dialysis circuit, and a second end thereof is disposed within the mixing region.

Abstract: Porous membranes are provided according to the invention having desirable coefficient of thermal expansion and large surface area, for example at least about 4,000 mm2. These porous membranes may be made according to an exemplary process employing lithographic patterning of a photoresist followed by development of the photoresist and etching. In one aspect, the etch barrier layer is chosen from a material that does not react with or incorporate metal or other contaminants into the membrane layer.

Abstract: Polymer-based membranes and methods for fabricating membranes are described. The methods include forming a casting solution featuring a plurality of titanium dioxide (TiO2) nanoparticles, a polyvinylidene fluoride (PVDF)-based solvent, and a polyvinylpyrrolidone (PVP)-based modifying agent, dispersing the casting solution to form a first element, generating a plurality of active sites on a surface of the first element, and forming a polymer-based membrane by exposing the surface of the first element to a fluorosilane composition to form a fluorosilane layer on the surface, where the fluorosilane composition includes a silane compound having at least one alkyl substituent that includes between 9 and 21 fluorine atoms.

Abstract: An extracorporeal blood processing system comprises a plastic molded compact manifold that supports a plurality of molded blood and dialysate fluidic pathways along with a plurality of relevant sensors, valves and pumps. A disposable dialyzer is connected to the molded manifold to complete the blood circuit of the system. The compact manifold is also disposable in one embodiment and can be detachably installed in the dialysis machine.

Abstract: Embodiments provide methods and structures for purification or volume reduction of a brine by an advanced vacuum distillation process (AVMD) to achieve higher flux by passage of vapors through an AVMD distillation unit. In one example, brine is circulated in a tank. The tank may include one or more membrane pouches that are submerged in the circulating brine or placed above the water level of the hot circulating brine. In other embodiments the membrane pouches are outside of the tank that includes the hot circulating brine but still in communication with it. The circulating brine is heated, allowing creation of water vapor. Using a vacuum, the water vapor is drawn through the membrane, where it may be condensed and subjected to further beneficial use. This process can concentrate to levels to generate crystals or solids, which can be separated and utilized.

Abstract: The present invention provides a membrane filtration module comprising a housing in which the filtration membrane is disposed in a fixed positional relationship by a potting or bonding material obtained by the curing of a two component (2K) composition consisting of: a first component (A) comprising at least one compound (a) having at least two acetoacetate functional groups; and, a second component (B) comprising at least one compound (b) having at least one amino group, each said amino group being a primary or secondary amino group.

Abstract: A lid for closing an open ended blood chamber is provided. The lid is a one piece device forming an inlet to the blood chamber. The one piece device includes a filter media spaced apart from the inlet and wherein blood passing through the inlet passes through the filter media upon entry into the blood chamber. The filter media filters gross particulate from the blood passing therethrough. The one piece device further includes a vent port with an associated vent port cover to allow air separated to vent from the blood chamber.

Abstract: An array of hollow nanotubes is configured and dimensioned to allow impurities to transport through the hollow nanotubes from a first space containing an impurity-laden fluid to a second space where the impurities may be collected for removal, allowing fluids, such as blood, to be purified.

Abstract: The present invention discloses a nanofiltration composite membrane, a preparation method and application thereof. The preparation method comprises: A) preparing 2D nano-material dispersion; B) first preparing a solution of a polymer material with a certain concentration, continuously adding a poor solvent under stirring conditions to subject the polymer material to chemical reaction to obtain a dispersion containing negatively charged polymer gel particles; C) subjecting the nano-material dispersion in step A) and the dispersion prepared in step B) to blending, membrane preparation and drying, and then placing the membrane into an alkaline solution with a certain concentration and pure water for soaking to obtain a nanofiltration composite membrane. The nanofiltration composite membrane can efficiently remove heavy metal complex ions through the synergistic effect of pore size screening and charge repulsion.

Abstract: Described are filter membranes coated with a polyamide, filters and filter cartridges that include the filter membranes, and methods of using and making the filter membranes.

Abstract: The present disclosure relates to capillary dialyzers for blood purification, in particular, capillary dialyzers suitable for home hemodialysis systems.

Abstract: Apparatuses and methods for fabricating thin film composite hollow fiber membranes. In some implementations, an apparatus is used to remove excess first solution from a hollow fiber that has been immersed in a first solution. In some implementations, the method and apparatuses include flowing a gas, for example, compressed gas or ambient air, past a surface of a hollow fiber that has been immersed in a first solution prior to immersion in a second solution. In some implementations, the gas is flowed past the surface under positive pressure, while in other implementations the gas is flowed under negative pressure, for example, vacuum. The apparatuses and devices can be used to produce thin film composite hollow fiber membranes without pressing or damaging the hollow fiber.

Abstract: A bioartificial liver (BAL) based on human induced pluripotent stem cells (iPSCs)-derived hepatocyte-like cells (HLCs) and a multilayer porous bioreactor is provided. The plasma separation/retransfusion loop part includes a blood input pipe, an exhaust pipe spring clamp, a blood input peristaltic pump, a heparin pump, a plasma separation column, a first pressure monitor, and a heater. The cell reactor/plasma component exchange double-loop part includes a plasma input peristaltic pump, and a semipermeable membrane exchange column, a plasma exchange peristaltic pump, a red blood cell (RBC) pool, a membrane lung, a multilayer porous bioreactor, a second pressure monitor, and a third pressure monitor arranged in a 37° C. dedicated incubator. An outlet of the third pressure monitor and a blood cell outlet are connected to an inlet of the first pressure monitor, and then connected to the heater and a blood output pipe in sequence.

Abstract: The invention relates to a modular flow system having a plurality of frame elements (101, 102) configured to be combined together to form a stack for forming a functional member. This functional member may be in particular a membrane distillation stage, a vapor generator, a condenser, a heat exchanger, a filter and/or a pervaporation stage. The frame elements (101, 102) each include: ? an outer frame (39) and an inner frame (43), the inner frame (43) encasing a central inner region (40) and being surrounded by the outer frame (39), and ? passage openings (13 to 16) and vapor and/or liquid channels (17, 18) arranged between the outer frame (39) and the inner frame (43). At least one of the two vapor and/or liquid channels (17, 18) is connected to the central inner region (40) by at least one vapor and/or liquid channel opening (22) constituting a through hole in the inner frame.

Abstract: Disclosed are a method of manufacturing a polyethylene membrane comprising: stretching a polyethylene film in a first direction during a first stretching; attaching a plurality of rods on side edges of the polyethylene film; attaching a tape on the polyethylene film; stretching the polyethylene film having the rods attached thereto in a second direction during a second stretching; and annealing the polyethylene film after the second stretching. The second direction can be a transverse direction of the first direction, and the first stretching and the second stretching can be performed at the same (or higher) temperature and the same stretching speed as each other.