A hollow fiber membrane module includes a pressure vessel, a plurality of hollow fiber membrane elements arranged in series inside the pressure vessel, and a connector that connects the hollow fiber membrane elements to each other. Each of the hollow fiber membrane elements includes a plurality of hollow fiber membranes, and a double-core tube extending in a longitudinal direction of the plurality of hollow fiber membrane elements. The connector includes a first channel and a second channel that do not communicate with each other. Between the hollow fiber membrane elements, the outer channels of the hollow fiber membrane elements are connected to each other through the first channel, the inner channels of the hollow fiber membrane elements are connected to each other through the second channel, and hollow portions of the hollow fiber membranes communicate with the inner channels through the second channel.

An external circulation-type hollow fiber membrane module which has a high processing capacity and which is capable of inhibiting a to-be-treated liquid within a case from flowing through a short path and efficiently bringing the liquid into contact with a hollow fiber membrane in whichever direction of a vertical direction, a horizontal direction, etc., the liquid flows. An external circulation-type hollow fiber membrane module is provided with: a hollow fiber membrane bundle; a case; and a short-path prevention body that blocks flowing of a to-be-treated liquid in a gap between the hollow fiber membrane bundle and the case, wherein a first end of the hollow fiber membrane bundle is fixed in the case, and the short-path prevention body is provided to the downstream side of a first port which is a liquid flow-in port in the case so as to project from the inner surface of the case.

A ceramic filter membrane module enables a fluid to be filtered, such as raw water, with higher efficiency using multiple ceramic filters in a housing. As the diameter of a through-hole located at the center is considerably larger than the diameter of the surrounding flow path, water pressure pushing the raw water is applied from the through-hole at the center toward the outside of a filter body, such that the raw water passes through the filter body smoothly, thereby improving the purification efficiency and uniformly setting the overall flow direction of the raw water. As packing members are installed and fixed between the housing and the ceramic filters, sealing of the incoming raw water and the filtered water becomes more effective, such that the risk of leakage is reduced. As a plurality of ceramic filters are housed in a single housing, economic benefit can be achieved.

The present disclosure relates to devices and processes for the production of hollow fiber membrane bundles. The bundles are used for the manufacture of filtration and/or diffusion devices, e.g., capillary dialyzers.

A degasification system includes a degasification unit in which a plurality of degasification modules degasifying a liquid are connected, wherein the degasification unit has a connection supply pipe which connects the liquid supply paths of the plurality of degasification modules in series and in which openings through which the liquid passes are formed at positions corresponding to the plurality of degasification modules such that the liquid is supplied to the hollow fiber membrane bundles of the plurality of degasification modules in parallel, and wherein the degasification unit is configured such that a pressure loss of the liquid from a supply port of the connection supply pipe through which the liquid is supplied to the discharge ports of a downstream side degasification module is larger than a pressure loss of the liquid from the supply port to the discharge ports of an upstream side degasification module.

Filtration vessels containing multiple filtration elements, and devices and processes for detection of leaks within these filtration elements.

A hollow fiber membrane module (100) of the present invention includes: a plurality of hollow fiber membranes (10); a binding portion (20) binding the plurality of hollow fiber membranes (10) at one end portions thereof; and a cap (30) having an internal space (30s) that communicates with each of the plurality of hollow fiber membranes (10), the cap (30) being integrated with the binding portion (20); and a housing (40) that houses the plurality of hollow fiber membranes (10) and the binding portion (20), and that has one end portion to which the cap (30) is attached. A unit (70) including the plurality of hollow fiber membranes (10), the binding portion (20), and the cap (30) is detached from the housing (40) and the unit (70) is attached to the housing (40) while integration of the binding portion (20) and the cap (30) is maintained.

The present invention is a two-part irrigation system that utilizes both groundwater and rainwater. The first system extracts water from groundwater layers by using extraction pipes filled with nanomilled sand that constantly moves water upwards through capillary action. The second is a rainwater collection and capillary irrigation system. The groundwater irrigation system consists of an external groundwater transport pipe filled with nanomilled sand. This encapsulates an empty internal transport pipe that delivers percolated water. The rainwater irrigation system consists of a collection, storage, filtration, and capillary irrigation system. Rainwater is collected by trays and a water tank, where the water is filtered through a hollow fiber membrane filter. This clean water is used as potable drinking water or for irrigation. The water volume required for irrigation is calculated based on moisture data collected by moisture detection devices. Both systems are solar powered, and are controlled and programmed by the user.

Methods and systems for the extraction of metals from an aqueous feed solution containing the metal ions. The aqueous feed solution is contacted with one side of a hydrophilic membrane support while an organic liquid is contacted with an opposite side of the hydrophilic membrane support. Metal ions migrate from the aqueous feed solution through the membrane support and into the organic liquid. The metal ions may be re-extracted from the organic liquid using a strip solution. The steps of extraction and reextraction may be carried out in a system including two hollow fiber membrane modules that each include a plurality of hydrophilic polymer hollow fibers.

A contactor module for a contactor panel includes a frame member and a contactor media coupled to the frame member. The contractor module defines a first side and a second side. The contactor media includes at least one first membrane array including a plurality of first hollow fibers extending along a first fiber axis. The at least one first membrane array defines a first axis. Further, the contactor module includes at least one second membrane array including a plurality of second hollow fibers extending along a second fiber axis. The at least one second membrane array defines a second axis. The at least one first membrane array and the at least one second membrane array is disposed such that a first inclination angle is defined between the first axis and the second axis. Moreover, the first inclination angle is greater than zero degree and less than 180 degrees.