The invention provides a semipermeable composite membrane that reduces an environmental load, and a method of producing the semipermeable composite membrane. A semipermeable composite membrane 100 includes, on a porous support 102, a semipermeable membrane 104 containing a crosslinked polyamide 120 and a cellulose nanofiber 110. A method of producing the semipermeable composite membrane includes obtaining a mixed solution containing the cellulose nanofiber 110, water, and an amine component, and obtaining the semipermeable composite membrane 100 by making the mixed solution be in contact with the porous support 102, thereafter, causing a cross-linking reaction of the amine component in the mixed solution, with the amine component adhering to the porous support 102.

A separation device includes a membrane separation module (10), an adsorption module (20), and a gas intake module (30). The membrane separation module includes a first housing (110), and a membrane assembly (130) disposed in the first housing. The first housing has a first gas inlet (121), a first gas outlet (122), and a retentate gas outlet (123). The membrane module has a permeate gas outlet, the permeate gas outlet being in communication with the first gas outlet. The adsorption module has a second housing (210) and an adsorbent layer (230) disposed in it. The second housing is disposed on the first housing and has a second gas inlet (221), a second gas outlet (222), and a desorption gas outlet (223). The second gas inlet is in communication with the first gas outlet. The gas intake module has a third gas outlet (321) in communication with the first gas inlet.

A method for manufacturing a filter membrane for inhibiting microorganisms includes the following steps: obtaining a nano-zinc precursor and dissolving it into water, adding at least one reducing agent and interfacial agent to the water, thereby reducing zinc ions of the nano-zinc precursor to zinc particles so as to form liquid having nano-zinc particles; respectively placing the liquid having nano-zinc particles and a polymer material into plastic masterbatch process equipment, respectively volatilizing the fluid having nano-zinc particles and polymer material through the plastic masterbatch process equipment, performing air extraction and mixing by the plastic masterbatch process equipment, and adding at least one grafting agent to perform a mixed graft link, allowing the nano-zinc particles and polymer material to be linked together stably so as to form a plastic masterbatch having nano-zinc particles; and making the plastic masterbatch into a filer membrane through film making equipment.

An osmosis element comprising a central permeate tube and a membrane element, the membrane having a first part and a second part, the first part having a top edge for location adjacent the central tube, the second part being disposed at the opposite edge, the first part comprising a material to allow water to flow therethrough, the second part comprising at least two adjacent permeate spacers extending from the first part to allow water to flow therethrough, the permeate spacers having a semi-permeable membrane attached to opposed faces of the two adjacent permeate spacers, the first part comprising a barrier extending from the vicinity of the top edge, the central tube comprising an external wall and a longitudinally extending internal separator defining a first channel and a second channel each extending longitudinally of the central permeate tube, at least one first aperture extending from the first channel though the external wall and at least one second aperture extending from the second channel through the external wall.

The specification discloses a portable dialysis machine having a detachable controller unit and base unit with an improved reservoir heating system. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The base unit has a reservoir with an internal pan and external pan, separated by a space that holds a heating element. The heating element is electrically coupled to electrical contacts attached to the external surface of the external pan.

CNT membrane filter cartridges and residential and commercial filtration applications for CNT membrane filter cartridges. CNT filtration can create both a high purity water stream, as well as a concentrated feed stream. CNT membrane filter cartridges can improve the mechanics of water transport, while high selectivity is achieved without sacrificing permeability. This benefit translates to allowing ultra-filtration technology to be implemented within a smaller footprint or reducing the need for driving energy.

Provided are a hollow fiber membrane module and a dehumidification/humidification device which allow an improved contribution ratio of hollow fiber membranes to a membrane separation function and improved dehumidification/humidification performance to be achieved. An outer case 100 is provided with a double tube portion 120 forming an annular space K radially externally of an annular gap S on one end side, with a communication portion 121 providing communication between the annular gap S and the one end side of the annular space K, and with an outlet portion 122 providing communication between the annular space K and the outside of the outer case 100, while an inner case 200 is provided with a hollow region which is open on the other end side and with a plurality of windows 221 providing communication between the hollow region and the annular gap S.

A purification system for ionic liquid solvents includes an ionic liquid source that includes a first flow controller configured to provide a first flow stream at a first flow rate where the first flow stream including an ionic liquid requiring purification. An extraction liquid source provides a second flow stream including an extraction liquid that is immiscible with the ionic liquid. A mixing component is configured to mix the first flow stream and the second flow stream and output a mixed flow stream that includes a retentate phase and a permeate phase. A separator assembly includes a separation membrane interposed between a first flow channel assembly and a second channel assembly.

Provided is a filter module for a gravity-type water purifier. The filter module for a gravity-type water purifier according to an exemplary embodiment of the present invention includes: a plurality of filter members which are plate shaped, and which are fixed to each other via one or more fastening bars while arranged spaced apart from each other in parallel having gaps therebetween; and a common water collecting member coupled to the respective water collecting holes formed in the filter members, and in which filtered water produced from the filter members is collected.

Features of relatively low pressure microporous (and preferably plant-responsive) irrigation tubes are combined with features of relatively high pressure drip emitter tubes to produce a hybrid irrigation tube. Methods for using and manufacturing the hybrid irrigation tube are also disclosed.