A filter module for a water dispensing device according to the present disclosure includes a filter housing which has an inflow port and a discharge port, and a plurality of filters which includes a filtration member provided in the filter housing to purify water flowing therein through the inflow port and to supply purified water to the discharge port, and filtering raw water flowing therein from the outside into purified water, and the filter module includes a pre-filter through which raw water passes firstly and in which a first carbon block having a hollow shape is built-in, a hollow fiber membrane (UF membrane) filter through which water passes through the pre-filter passes secondly, a second carbon block having a hollow shape through which water passing through the hollow fiber membrane filter passes thirdly, and an electrostatic adsorption member through which water passing through the second carbon block passes fourthly.

A filter module for a water dispensing device according to the present disclosure includes a filter housing which has an inflow port and a discharge port, and a plurality of filters which includes a filtration member provided in the filter housing to purify water flowing therein through the inflow port and to supply purified water to the discharge port, and filtering raw water flowing therein from the outside into purified water, and the filter module includes a pre-filter through which raw water passes firstly and in which a first carbon block having a hollow shape is built-in, a hollow fiber membrane (UF membrane) filter through which water passes through the pre-filter passes secondly, an electrostatic adsorption member through which water passing through the hollow fiber membrane filter passes thirdly, and a second carbon block through which water passing through the electrostatic adsorption member passes fourthly.

The hollow fiber membrane module contains a hollow fiber membrane bundle having bundled hollow fiber membranes, a housing with an internal space formed in which the hollow fiber membrane bundle is housed and a gas supply portion which disperses cleaning gas for the hollow fiber membrane in the internal space. The internal space has an upper space in which an upper-side part of the hollow fiber membrane is positioned and a lower space in which a lower-side part of the hollow fiber membrane is positioned. The gas supply portion is provided with pipe vent holes which disperse gas in the housing at a position in the upper space and diffusing vent holes which disperse gas in the housing at a position below the lower space.

A first adhesion-fixing-portion adhesively fixing hollow fiber membranes together and a hollow fiber membrane bundle and an inner wall of a housing together at an open end of the hollow fiber membranes, and a second adhesion-fixing-portion adhesively fixing the hollow fiber membranes together and the hollow fiber membrane bundle and the inner wall of the housing together at a closed end of the hollow fiber membranes are included. At least one of the second adhesion-fixing-portion and the housing around the second adhesion-fixing-portion has at least one through-hole for introducing liquid fed from the outside of the second adhesion-fixing-portion to a space in the housing. The total area of an opening or openings of at least one through-hole provided outside an outer perimeter of the hollow fiber membrane bundle is 80% or more of the total area of an opening or openings of all of the at least one through-hole.

A membrane filter configured to filter a liquid, the membrane filter including a base element including at least one membrane carrier that is externally flowable by the liquid and a gas; hollow fiber membranes respectively including lumen and attached at a top of the at least one membrane carrier wherein a liquid permeate is filterable from the liquid into the lumen; a one piece extruded circumferentially closed pipe that envelops the hollow fiber membranes; a gas inlet configured to let gas into a bottom of the membrane filter; at least one permeate collection cavity included in the base element and connected with the lumen and configured to collect the liquid permeate from the hollow fiber membranes; a permeate outlet included in the base element and configured to drain the liquid permeate from the at least one permeate collection cavity laterally from the base element.

The present invention provides an intrinsically anti-microbial hollow fiber membrane for filtration of liquids. The membrane comprises a plurality of porous hollow bilayer membrane fibers wherein the liquid enters from outside of the fiber, passing through the porous membrane into the lumen of the fiber and coming out from the hollow ending of the fiber, wherein this configuration provides a liquid outside-in arrangement and retains the filtrate outside. It means that membrane of the invention has built in characteristics to act against microbes in order to provide the use with a safe liquid free from microbes. The outer side or outer wall of the hollow fibers may be configured to become hydrophobic whereas inner side or inner wall of the hollow fiber membrane may be configured to become hydrophilic to enhance the water permeability to a great extent. The hollow fiber membrane may be configured to give it an intrinsic anti-microbial capability. A device containing above said membrane has also been disclosed.

A membrane filter for filtering a liquid to be filtered, having a downwardly open base element through which flow can pass and which has a tubular shell and precisely one membrane carrier arranged therein, wherein the membrane carrier is connected to the shell by way of at least one anchoring point, having hollow fiber-type membranes fastened at the top in the membrane carrier, having a circumferentially closed pipe which, adjoining the top of the shell of the base element, surrounds the hollow fiber-type membranes, having a gas inlet into the base element, having at least one permeate collecting chamber, having at least one permeate outlet, and having at least one downwardly open flow chamber between the shell and the membrane carrier, which flow chamber has an outlet at the top, wherein the at least one flow chamber, in every horizontal section, adjoins both the shell and the membrane carrier.

Described herein are fluid treatment devices for use in tangential flow filtration, comprising a housing unit and a composite material, wherein the composite material comprises: a support member comprising a plurality of pores extending through the support member; and a non-self-supporting macroporous cross-linked gel comprising macropores having an average size of 10 nm to 3000 nm, said macroporous gel being located in the pores of the support member. The invention also relates to a method of separating a substance from a fluid, comprising the step of placing the fluid in contact with an inventive device, thereby adsorbing or absorbing the substance to the composite material contained therein.

The present invention relates to a hollow fiber membrane module provided with: a tubular casing having a first end and a second end in the axial direction; a plurality of hollow fiber membranes; a first potting part; and a second potting part, the hollow fiber membrane module further having a flow regulation structure in which a fluid flowing outside the hollow fiber membranes from the second end side toward the first end side forms a flow directed to the radial center on the second end side of the first potting part, and further forms a radial flow directed from the radial center to the radially outer peripheral side on the second end side of the first potting part.

A water filter comprises an ultrafilter or microfilter, in particular a membrane stack for ultrafiltration or microfiltration, which has a direction of flow (D) and contains an alkalinizing and/or oxidative material that is placed upstream of or within the membrane stack when viewed in the direction of flow.