The present invention relates to an assembly-type cartridge block enabling various types of cartridges, and a hollow-fiber membrane module comprising the same. The assembly-type cartridge block of an embodiment of the present invention comprises: a body part having a plurality of hollow-fiber membranes therein and having mesh parts formed respectively at the upper and lower parts thereof; and a fastening part formed on a side surface of the body part and configured to be fastened to an adjacent assembly-type cartridge block. Further, the hollow-fiber membrane module of an embodiment of the present invention comprises: a housing unit including a first fluid inlet, a first fluid outlet, a second fluid inlet, and a second fluid outlet; and a cartridge unit installed inside the housing unit and formed by fastening a plurality of assembly-type cartridge blocks, each of the assemble type cartridge blocks having a plurality of hollow-fiber membranes therein.

A disposable filter cup and stem assembly with a filter disc or membrane secured between the cup and the stem. A frangible filter cup disengagement strip is formed on the filter cup about an end adjacent the stem. The filter disc or membrane is secured in the assembly in close proximity to the disengagement strip. Force applied to the disengagement strip separates the filter cup from the stem to expose the top, upstream surface of the filter disc or membrane and to permit removal of the filter disc from the assembly in an intact, substantially horizontal position. A disposable filter capsule assembly formed with a frangible filter capsule disengagement strip encloses a filter disc or membrane and permits separation of the capsule into two sections so as to expose an upstream surface of the filter disc or membrane and to permit removal of the filter disc or membrane in an intact condition after fluid processing. Disposable filter capsules with capsule halves having mated snap-fit surfaces and optional O-ring or luer lock type sealing surfaces, permit access to enclosed filter discs or membranes after fluid processing. Upon separation of the filter capsule halves, the upstream surfaces of the enclosed filter discs or membranes are exposed and the discs or membranes are accessible for removal in intact condition. O-ring free media holders constructed with weld spots permit access to enclosed free media by disengaging the weld spots after fluid processing.

A filtration apparatus (10) for treating a fluid comprises a vessel (12), a first partition plate (18) dividing the vessel into first and second chambers (22, 26) and defining a through hole (40), and a filtration module (30) located within the second chamber (26) and including a body section (32) defining an outer diameter which is greater than the diameter of the through hole (40) in the first partition plate (18). The apparatus (10) further comprises a reducing connector (36) having a first end secured to the body section (32) of the filtration module (30) and a second end sealed relative to the through hole (40) in the first partition plate (18) to permit communication between the filtration module (30) and the first chamber (22). In a disclosed embodiment the apparatus (10) includes a second partition plate (20) such that the vessel is divided into first, second and third chambers (22, 24, 26), wherein the filtration module (30) is mounted between the partition plates (18, 20).

A process for producing nitrogen-rich air by feeding high temperature air at 150 C. or more to an air separation membrane module is described. After being placed at 175 C. for two hours, the air separation module exhibits a shape-retention ratio of 95% or more in one embodiment. The nitrogen-rich air can be fed to a fuel tank for an aircraft, for example.

A portable water conditioning system is provided that includes a water conditioner, a first sensor, a second sensor, and a controller. The water conditioner has a plurality of conditioning stages that condition water. The plurality of conditioning stages include, in a direction of flow of the water through the water conditioner, a reverse osmosis stage and a deionizing stage. The first sensor detects a first condition of the water before the reverse osmosis stage. The second sensor detects a second condition of the water after the reverse osmosis stage. The controller is in communication with the first and second sensors and determines a health status of the reverse osmosis stage based the first and second conditions. The first and second conditions each include a level of total dissolved solids of the water.

The present invention relates to portable filtration units including filter components mated with retentate and permeate flow channels wherein particle containing solutions are introduced into the portable filtration units and contacted with the filter components for filtration thereby producing a retentate outflow and a permeate outflow for capture of desired end product.

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

A filter element assembly comprises a filtration media and an end fitting through which a sealing connection is made between the assembly and a housing so that the end fitting defines a flow path between the housing and the filtration media. The end fitting has first and second parts which can be separated axially, and the filter media extends axially away from the second part in a direction away from the first part. Each of the parts has an outer wall with an external threaded cylindrical surface, and each of the first and second parts has an axially facing edge surface which faces the other of the first and second parts, the facing edge surfaces shaped to define a pre-determined relative rotational alignment of the first and second parts, where the parts fit together so that the threads on the external surfaces of the parts form a continuous thread.

A portable water conditioning system is provided that includes an incoming water inlet; a reverse osmosis stage in fluid communication with the incoming water inlet, the reverse osmosis stage having a permeate outlet and a concentrate outlet; a diversion device having a diversion valve, the diversion valve placing the concentrate outlet in fluid communication with a waste water outlet; a deionizing stage in fluid communication with a pure water outlet; a bypass valve configured to selectively place the permeate outlet in fluid communication with one or more of the waste water outlet, the deionizing stage, and the pure water outlet; and a controller configured to control the diversion device and the bypass valve to provide water at the pure water outlet of a desired condition.

The invention relates to membrane modules, in particular membrane pocket modules, which comprise membrane pocket stacks which are disposed in a housing having at least one feed inlet, at least one retentate outlet, and at least one permeate outlet. The invention also relates to the use of the membrane module according to the invention for separating mixtures of liquids and/or gases. The membrane of the previously known type, also referred to as a GS module, comprises a housing which for forming a container interior space by means of finisher discs at two end sides is closed in a pressure-tight manner. The finisher discs comprise at least one feed inlet, at least one retentate outlet, and one permeate outlet, wherein at least one membrane pocket stack which has a plurality of membrane pockets which are lined up beside one another and are mutually separated by seals and which are push-fitted onto a permeate tube is disposed in the container interior space. The permeate tube protrudes beyond the at least one permeate outlet of the finisher discs. The membrane module according to the invention is characterized in that the permeate tube and the permeate outlet of the finisher discs are aligned in an alternating manner by way of a key-and-groove connection.