A fiber de-gassing membrane includes a plurality of membrane fibers. At least one of the membrane fibers has a first stiffness. The membrane includes reinforcing fibers. The reinforcing fibers are positioned adjacent to at least one of the membrane fibers. The reinforcing fibers have a second stiffness. The second stiffness is greater than the first stiffness.

A regenerable organic contaminant controller includes a carbon hollow fiber module that includes a passage between an inlet and an outlet, on an opposite end of the carbon hollow fiber module from the inlet, such that organic contaminants in contaminated air flowing through the passage are desorbed into pores of the carbon hollow fiber module. The regenerable organic contaminant controller also includes wires coupled to the inlet of the carbon hollow fiber module and to the outlet of the carbon hollow fiber module. The wires heat the carbon hollow fiber module based on a flow of electricity through the wires. The heat causes release of the organic contaminants from the pores of the carbon hollow fiber module.

The invention relates to the design of an enclosure for a membrane aeration module, which incorporates a reversible, low-pressure, air-lift pump to encourage a vertical water flow through and between the membranes in the module. These enclosed membrane modules are suitable for use in membrane aerated biofilm reactors, which are used to treat water or wastewater.

An object of the present invention is to provide a fluid-separation carbon membrane module that can suppress defects on a surface of a carbon membrane or breakage of the carbon membrane and suppress suction of a potting material even in a case where a carbon membrane having low ductility is used, and the main idea of the present invention is a fluid-separation carbon membrane module in which a plurality of covered carbon membranes in which at least one covering yarn is helically wound around one or two fluid-separation carbon membranes are housed in a vessel.

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.

A composite ion conducting tube is made by wrapping a support material or ion conducting sheet to from a tube having overlaps of layers that are bonded. The ion conducting sheet or tape used to make the tube may be very thin and the tube may be formed in situ by wrapping the support material and then coating with ion conducting polymer. The ion conducting tubes may be used in a pervaporation module or desalination system. The ion conducting tubes may be spirally wrapped or longitudinally wrapped and may be very thin having a tube wall thickness of no more than 25 microns.

A degasification system includes a plurality of degasification units which degasifies a liquid and a cylindrical housing which houses the plurality of degasification units in parallel. Each of the plurality of degasification units includes a hollow fiber membrane bundle in which a plurality of hollow fiber membranes are bundled in a cylindrical shape and a cylinder in which the hollow fiber membrane bundle is housed. The housing has an inlet, an outlet, and a sealing portion which partitions an internal space of the housing into an upstream side region on the inlet side and a downstream side region on the outlet side via the plurality of degasification units. The plurality of degasification units are configured such that pressure losses of the liquid differ depending on a distance from a central axis of the housing.

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.

Membranes and filtration modules for producing a concentrated feed stream and a diluted feed stream during operation in a water purification or wastewater treatment system. Filtration modules are provided that include a semipermeable membrane having a first side and a second side, the first side configured to receive a first feed solution stream from a first feed solution source and the second side configured to receive a second feed solution stream from a second feed solution source. The semipermeable membrane may be configured to operate at a hydrostatic pressure on the second side of the membrane from about 1% to about 40% of the hydrostatic pressure on the first side of the membrane, and may in some cases exhibit a salt rejection of from about 60 percent to about 90 percent during operation.

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.