Abstract:
Embodiments of the present invention relate to a device for filtration comprising at least one rotor configured to create Taylor vortices on at least one side of a filtration membrane, thereby providing substantially enhanced mass transfer across the membrane.
Abstract:
Disclosed is a closed type waste water treatment apparatus. The apparatus includes a barrel, a plurality of filters installed within the barrel, and one or more ultrasonic vibrators. The ultrasonic filters are installed to extend through some of all of the filters within the barrel so as to apply ultrasonic vibration within the spaces between the filters. With this arrangement, it is possible to arrange one or more ultrasonic vibrators with a simple construction in a closed typewaste water treatment apparatus. In addition, even if one or more rotors are employed, the combined arrangement of ultrasonic vibrators can be simply implemented.
Abstract:
The invention provides a permeation device comprising a receiving vessel having an aperture adapted for receiving an insert well. Both the vessel and well are used as either donor or acceptor compartments for permeability assays. The vessel or well comprise a porous support, which comprises, for example, biological or biomimetic materials, adapted for a molecular entity to permeate therethrough. A permeation device of the invention can be used for a Caco-2 type cell assay or PAMPA. In one embodiment, a stirring member disposed in the vessel can provide solution agitation to reduce aqueous boundary layer(s) thickness adjacent to the support. Boundary layer thicknesses can be reduced by a device of the invention to less than about 15 pm such that a molecular entity permeating the support closely approximates in vivo absorption and transport conditions. The invention also provides a method for changing boundary layer thicknesses using such a device.
Abstract:
This invention is a combination mass transfer, and pump apparatus (10), which in a single step actively mixes a first mass, a second mass that simultaneously pumps one of the first mass, and the second mass through the apparatus. The combination mass transfer and pump apparatus substantially comprises a housing (12), and at least one distributor element (16) having a plurality of selectively fluid-permeable membrane elements (48) wherein the at least one distributor element is agitated within the second mass such that the first mass diffuses across the selectively fluid-permeable membrane elements, mixing with the second mass, and in the same step the second mass is pumped through the housing.
Abstract:
Die vorliegende Erfindung betrifft eine Vorrichtung zur Entgasung eines gasbeladenen Fluids, mit einem Behälter (12), in dem wenigstens ein Membranmodul (20), mit einer Innenseite und einem radialen Umfang, zur Trennung eines Gases vom Fluid aufgenommen ist, wobei das Fluid dem Membranmodul (20) über dessen Bautiefe mittels eines Zulaufs (30) zentral zugeführt, über einen Ablauf (35) am Behälter abgeführt und das Gas aus dem Membranmodul (20) über einen weiteren Ablauf (37) am Membranmodul (20) abgeführt wird und das Fluid das Membranmodul (20) von der Innenseite zum radialen Umfang durchströmt. Die Vorrichtung ist dadurch gekennzeichnet, dass das Membranmodul (20) im Fluid des Behälters (12) aufgenommen ist, wobei das Fluid im Behälter (12) außerhalb des Membranmoduls (20) im Wesentlichen einen einheitlichen Druck aufweist oder die Druckunterschiede außerhalb des Membranmoduls (20) durch einen Druckausgleich in einem Verteilungsrohr (31) kompensiert werden, so dass der Druckabfall des Membranmoduls (20) zwischen dessen Innenseite und dem radialen Umfang über die gesamte Bautiefe im Wesentlichen konstant ist.
Abstract:
The invention relates to a reactor unit for treatment of a liquid. The reactor unit comprises a number of parallel filtering plates (40) of a liquid permeable material, where each filtering plate (40) has an outlet opening (44) for outletting liquid which has permeated into the plate. The reactor unit moreover comprises a number of aeration plates (50) of a gas permeable material, where each aeration plate (50) has an inlet opening (51) for inletting air, and where the aeration plate(s) (50) are placed in parallel to the filtering plate(s). The aeration and filtering plates (40, 50) are arranged to be stationary within the reactor unit. The reactor unit moreover comprises at least one disc member (12) placed adjacent to a filtering plate (40) or an aeration plate (50), but leaving a gap between said filtering plate (40) or aeration plate (50) and the disc member, as well as means for rotating (7; 16) the at least one disc member around a central axis through the at least one disc member (12).
Abstract:
A filtration system for a fluid containing suspended particles mounts a filter (3) within a closed container (2) having fluid inlet (7) and outlets (8, 9) for filtered fluid and retentate fluid. The inlet and outlets communicate with the interior of the container but do not rotate with respect to the container. An orbital and/or oscillatory drive (1) moves the container in either a continuous wobbling movement or in an oscillatory movement. In one form a mechanical element (4) pivots around the inlet side of the filter. In another form a rotating cylinder (17) with an eccentric center of gravity revolves or oscillates with respect to a surrounding non-porous cylinder (18) to create Taylor vortices in the fluid. In another, direct-drive form, a conduit (92) to the interior of a closed filter element (3), or a surrounding sleeve (77) which supports the container (2) is formed of an elastically resilient material.
Abstract:
Embodiments of the present disclosure are directed to a device and method for the filtration of gray water from a household. In some embodiments, the gray water can be filtered using a conical rotor and filtration media, which can provide enhanced filtration through the use of Taylor vorticity filtration. The filtered water can have various uses back in the household after filtration.
Abstract:
Fluid filtration devices and methods of filtering fluids are described. The devices generally include a housing and an annular filter assembly, wherein the filter assembly is located inside the housing and comprises a filter material. The filter material may be, for example, an electroformed nickel screen having a smooth working surface and expanding pores. A rotating cleaning assembly comprising a distributor and wipers may be located inside the filter assembly.