The invention relates to a device for the microfiltration, ultrafiltration, or nanofiltration and/or the emulsification of liquids. The device has at least one rotatable membrane medium, which has a filtrate/permeate side or a side facing a dispersed phase and a concentrate/retentate side or a side facing a coherent phase and which can be rotated in a container in order to produce a vacuum on an unfiltered liquid side or the side facing the coherent phase on partial regions of the at least one rotatable membrane medium in the container in small time segments at a frequency of 1-100 Hz. Said container has at least one feed for an unfiltered liquid or the coherent phase, at least one overflow for an unfiltered liquid or an emulsion, and at least one rotatable channel for filtrate/permeate drainage or feed of the dispersed phase, and a suction device, in particular in the manner of a suction strip or nozzle plate. The suction device has at least one suction strip or nozzle plate arranged parallel to the rotatable membrane medium or is such a suction strip or nozzle plate, which is attached at a distance of less than 0.1 to 10 mm from the membrane medium, and thus cleans non-permeating materials collected on the unfiltered liquid side during a filtration process from a surface of the membrane medium, or promotes drop formation of the dispersed phase exiting from a membrane surface on the side facing the coherent phase during an emulsification process. The invention further relates to uses of the device.

An end cap for a filtration module having a chamber includes an outlet channel extending therethrough which is part of or forms an aerodynamically shaped element having a cross section with an elongated shape mainly directed from the inlet to the first outlet, a width of the elongated shape at both ends thereof being smaller than at a center part of the elongated shape. An end cap may also include an inlet, a first and second outlet, and a flow guide element arranged between the inlet and the first outlet within the chamber at a second outlet side thereof, the flow guide element extending a part of an inlet wall to a corresponding part of a first outlet wall, the flow guide element defining one or more openings allowing a portion of a main flow to flow towards the second outlet.

A decentralized water treatment unit is for purifying untreated water to purified water for human consumption. The unit includes i) a filtration module, having at least one filtration membrane configured to, during a filtration cycle, purify the untreated water; and ii) a cleaning module, having an electrolytic cell configured to, during a generation cycle, generate a cleaning solution of predetermined composition from a chloride starting solution. The cleaning module is further configured to, during a cleaning cycle, pump the cleaning solution through the filtration module to clean the at least one filtration membrane.

Provided are a plate-type filter module for water treatment and a filter assembly for water treatment comprising the same. The plate-type filter module for water treatment according to one embodiment of the present invention comprises: a plurality of filter units having a predetermined area and formed in a plate shape; a block frame to which the plurality of filter units is engaged so that the filter units are kept parallel to each other; and a collecting/receiving tube fixed on one side of the block frame and including a plurality of first fittings respectively connected to the plurality of the filter units to allow filtered water produced in the filter units to be introduced thereinto and at least one second fitting for discharging the filtered water introduced through the plurality of first fittings to the outside.

A separation membrane module comprises a hollow module container, and an element unit which is housed in the module container. The element unit comprises a plurality of connected separation membrane elements each of which includes: a separation membrane for separating components of a substance flowing to the inside of the module container; and membrane bundle securing materials for securing both ends of the separation membrane. In the element unit, a flow channel for discharging the components separated by the separation membranes to the outside of the element unit is formed. Passage members though which the components separated by the separation membranes can pass toward the flow channel for discharging are disposed at connections between the plurality of separation membrane elements such that both end surfaces of each of the passage membranes are respectively in contact with the membrane bundle securing materials of the separation membrane elements adjacent thereto.

A sheet-shaped hollow fiber membrane module includes a casing having a flat shape, the casing including a supply port and a discharge port, and a plurality of hollow fiber membranes accommodated inside the casing. The casing includes a plurality of the supply ports on one main surface of the casing and a plurality of the discharge ports on the other main surface of the casing, at least one of the plurality of the supply ports is closable, and at least one of the plurality of the discharge ports is closable. Each of the plurality of hollow fiber membranes includes a first opening at one end of the hollow fiber membrane and a second opening at the other end of the hollow fiber membrane, and the first opening and the second opening communicate with an outside of the casing and do not communicate with an inside of the casing.

A system that uses single or multiple elements arranged in a single unit or multiple arrays for the extraction, purification, and concentration of lithium and other constituents from a brine that can be constructed in a mobile unit.

A method of operating a filtration unit of a filtration system includes feeding, during filtration, feed water containing suspended particulate material to an inside of each of a plurality of hollow fibres through a first inlet and a second inlet of each hollow fibre while simultaneously removing a filtrate from an outside of each of the hollow fibres through an outlet of a filtration elements. In addition, the method includes feeding, during back-washing, back-wash water to the outside of the hollow fibres through the outlet of the filtration element. Further the method includes discharging, in a first back-wash cycle, back-wash water containing entrained particulate material from the inside of the hollow fibres from one end thereof. Still further, the method includes discharging, in a second back-wash cycle, back-wash water containing entrained particulate material from the inside of the hollow fibres from the other end thereof.

Hollow fiber cartridges and components and methods of their construction.

Methods and devices are disclosed for a separation device. A separation device includes a separation module having a separation membrane separating an interior of the separation module into a retentate compartment and a permeate compartment. The retentate compartment includes at least one retentate channel, a feed port fluidly coupled to the at least one retentate channel and a retentate port. The permeate compartment includes at least one permeate channel disposed within the permeate compartment and a permeate port fluidly coupled to the at least one permeate channel. a retentate collector fluidly connected to the retentate port. The device further includes a feed reservoir, a permeate reservoir, a fluidic gate located between the feed reservoir and the separation module, a vent located between the retentate channel and the permeate channel end adjacent the retentate port and a pressure differential source applied across the separation module.