Abstract: A tubular depth filter element has three or more concentric zones. Each zone is made of an essentially continuous melt blown filament. The filament of an outer zone preferably has a larger diameter than the filaments of other zones. The outer zone overlaps with at least 85%, and preferably all, of another zone. Optionally, one or more additional filaments may traverse through all of zones. The depth filter element is made by spraying filaments onto a rotating mandrel to form a filament mass in contact with a conical press roller. The filaments are sprayed from three or more nozzles which are spaced apart along the length of the mandrel. One of the filaments is formed in a spray pattern that is angled towards an adjacent spray pattern so as to overlap with at least 50 or 85%, and preferably all, of the adjacent spray pattern.

Abstract: A wastewater purification system is provided. The wastewater purification system comprises a chamber. One or more wastewater nozzles are positioned near the top of the chamber. An intake duct is further provided to supply chilled air into the chamber, and one or more exhaust ducts are provided to remove the chilled air from the chamber. One or more perforated receptacles positioned near the bottom of the chamber to collect solid byproducts, and a watertight receptacle at the bottom of the chamber to collect a liquid product. The wastewater enters the chamber as wastewater droplets via the one or more wastewater nozzles, wherein the wastewater undergoes freeze separation due to heat exchange with a high mass flow of the chilled air between the intake duct and the one or more exhaust ducts.

Abstract: The system and method for remediation of oil-contaminated sand provides for washing and separation of sand from oil and oil-based contamination. The system for remediation of oil-contaminated sand includes a soil washing system for receiving a volume of oil-contaminated sand. The soil washing system mixes the volume of oil-contaminated sand with water to produce a mixture. This mixture is then delivered to a sand separator for separation into a volume of treated sand and a volume of oily wastewater. A flocculation tank receives the volume of oily wastewater. In the flocculation tank, the oily wastewater is mixed with at least one coagulant to separate the oily wastewater into treated water and oily sludge. A sludge hopper receives the oily sludge for collection. A treated water tank receives the treated water for collection and storage.

Abstract: A diffusiophoretic water filtration device includes a pressurized gas chamber receiving a pressurized gas; an inlet manifold receiving a colloidal suspension including colloidal particles in water; a flow chamber having an inlet and an outlet, the flow chamber receiving the colloidal suspension at the inlet from the inlet manifold, the colloidal suspension flowing between the inlet and at least one outlet in a flow direction; and a horizontal sheet separating the gas chamber and the flow chamber, the sheet being made of a gas permeable membrane, the gas capable of permeating the membrane, the membrane being water impermeable, the gas being carbon dioxide and permeating the membrane upwardly from the gas chamber in a direction normal to the membrane so as to induce diffusiophoretic motion on at least some of the colloid particles opposite to or in the direction normal to the membrane, the sheet covering a top of the pressurized gas chamber.

Abstract: The disclosure is directed to a surface having a binding component applied thereto for the adsorption or capture of pathogens and organic molecules or materials. The surface may be a component of a porous or nonporous substrate. The binding component may also bind a photocatalyst to the surface for photocatalytic destruction of the captured pathogens and organic molecules or materials.

Abstract: A hollow fiber membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fiber membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fiber membrane module; and a method for manufacturing a hollow fiber membrane module are provided.

Abstract: Water supply vehicle comprising a water reservoir, a flow through descaling device having a water inlet, a water outlet, a detecting device for detecting a water characteristic in a water flow from the water inlet to the water outlet, a controllable water descaling device, and a controlling device being designed for controlling the water descaling device based on a water characteristic detected by the detection device, wherein the water reservoir is connected to the water inlet, wherein the water outlet is connectable to a water hose for supplying water to a water consumer.

Abstract: The present disclosure is directed to biomimetic membranes and methods of manufacturing such membranes that include structural features that mimic the structures of cellular membrane channels and produce membrane designs capable of high selectivity and high permeability or absorptivity. The membrane structure, material and chemistry can be selected to perform liquid separations, gas separation and capture, ion transport and adsorption for a variety of applications.

Abstract: Sulfur contaminants, such as elemental sulfur (S8), hydrogen sulfide and other sulfur components in water are removed using a silicone-based chemical filter. In one embodiment, a silicone-based chemical filter includes a membrane having a cross-linked silicone that is a reaction product of an olefin and a polyhydrosiloxane.

Abstract: Sulfur contaminants, such as elemental sulfur (S8), hydrogen sulfide and other sulfur components in natural gas liquids (NGLs), diesel fuel and gasoline are removed using a silicone-based chemical filter. In one embodiment, a silicone-based chemical filter includes a membrane having a cross-linked silicone that is a reaction product of an olefin and a polyhydrosiloxane.

Abstract: The invention relates to a system for treating contaminated wastewater, comprising a feed line (3) that leads into a separator (5) and a discharge line (10) that leaves the separator, which discharge line leads directly or indirectly into an access line (16) into an ultrafiltration system (18), wherein the ultrafiltration system (18) has a permeate outlet line (19) and a concentrate outlet line (17). According to the invention, a system and a method for treating contaminated wastewater that operate effectively and reliably with low component complexity are provided or specified. This is achieved in that the permeate outlet line (19) can be connected to the feed line (3) in a controllable manner.

Abstract: The invention discloses a normal flow filtration cassette (1) stackable with like cassettes, said cassette comprising: at least three port conduits (2,3,4); an inlet chamber (5) in fluid communication at least with a first of said port conduits (2); an outlet chamber (6) in fluid communication at least with a second of the port conduits (3); and a filter medium (7) between said inlet chamber and said outlet chamber, wherein said at least three port conduits (2,3,4) are each in fluid communication with a corresponding inlet port (8,9,10) and are each in fluid communication also with one of a corresponding set of outlet ports (11,12,13), and wherein each of said set of inlet ports (8,9 10) is arranged to cooperate with a respective complementary outlet port of an adjacent like cassette when in a stack and said outlet ports (11,12,13) are each arranged to cooperate with a respective complementary inlet port of a further adjacent like cassette when in a stack.

Abstract: Novel electrospun nanofibers and nanofibrous membranes, methods of manufacturing the same, and methods of using the same are provided. The nanofibers include a cactus mucilage, such as mucilage from Opuntia ficus-indica. An organic polymer can be added to the cactus mucilage before electrospinning. The nanofibrous membranes can be used in water filtration.

Abstract: A method for cleaning and preventing diffuser membrane fouling of an aeration system can include: transporting a liquid acidic solution into a downcomer pipe or a purge line positioned in a reservoir of an aeration system containing a body of water such that the liquid acidic solution flows into a manifold and air distribution pipes; allowing the liquid acidic solution to vaporize; and blowing the vaporized acidic solution into a plurality of diffusers supported by the air distribution pipes. An aeration system that can implement the method is also included.

Abstract: A vibratory separator includes a screen frame having an upper screen surface and a plurality of openings and a first screen insert disposed in a first opening of the plurality of openings of the screen frame, the screen insert having a screen surface positioned at a first height above the supper screen surface. The vibratory separator also includes a second screen insert disposed in a second opening of the plurality of openings of the second screen frame, wherein a screen surface of the second screen insert is positioned at a second height. The second height may be different from the first height. A method of processing fluid includes providing a flow of fluid to a vibratory separator, and flowing the fluid over a screen having a first screen insert positioned at a first height.

Abstract: A compact hydraulic manifold for transporting shear sensitive fluids is provided. A channel network can include a trunk and branch architecture coupled to a bifurcation architecture. Features such as tapered channel walls, curvatures and angles of channels, and zones of low fluid pressure can be used to reduce the size while maintaining wall shear rates within a narrow range. A hydraulic manifold can be coupled to a series of microfluidic layers to construct a compact microfluidic device.

Abstract: This desalinization system, which obtains industrial-use water and drinking water from seawater and wastewater, is provided with: a purification device that purifies wastewater by removing activated sludge therefrom; a first RO membrane that removes salt from the output of the purification device by transferring said salt to first concentrated water, thereby producing industrial-use water; a UF membrane that seawater passes through and that removes particulates from said seawater; a second RO membrane that removes salt from the treated output of the UF membrane by transferring said salt to second concentrated water, producing drinking water; an agitation device to which the second concentrated water from the second RO membrane and the first concentrated water from the first RO membrane are sent to be agitated; and a third RO membrane removing salt from the liquid mixture agitated by the agitation device by transferring said salt to third concentrated water, producing industrial-use water.

Abstract: A filter device has a first connection (A1) to a hydraulic working circuit, an associated filter element (F1) and an additional connection (A2) by which leakage oil amounts of hydraulic components can be fed. A control apparatus (V2) can feed the leakage oil amounts from the additional connection (A2) to the filter element (F1) when a specified working pressure of the working circuit is not reached at the first connection (A1).

Abstract: Station (10) for internally and externally storing, collecting and recirculating a fluid substance, said station (10) comprising a tank (11) and a recirculation circuit (14) of the fluid substance contained in said tank (10). The circuit (14) is provided with a first end associated with a lower supply opening (12) and a second end associated with an upper loading opening (13); the circuit (14) being provided with a pump (15) and a first valve (16) associable with an external tank (17) through a loading conduit (18), the valve (16) being configurable for selectively defining the conditions of recirculation of the fluid substance contained in said tank (11) from the lower opening (12) to the upper opening (13) isolating said external tank (17), and loading the fluid substance from said external tank (17) to said tank (11) isolating the lower supply opening (12) of said tank (11).

Abstract: A hollow fiber membrane module and a method for preparing a hollow fiber membrane module. A hollow fiber membrane module includes a header, and a sheet block inserted into the header, and the sheet block includes a hollow fiber membrane block, wherein the hollow fiber membrane block comprises a plurality of hollow fiber membranes arranged at regular intervals in a vertical direction of the header; and a resin block formed at an end of the hollow fiber membrane blocks and contacting an inner wall of the header to be secured thereto, and a potting agent is filled between hollow fiber membranes of the hollow fiber membrane blocks in a space between an upper side of the resin block to an inlet of the header to secure the hollow fiber membranes.