The invention includes a filtration medium for the purification of a liquid or a gas material that includes a mat having a first surface and a second surface. At least one of the first surface or the second surface is substantially non-planar. The mat comprises a foamed resin having a density of about 1 lbs/ft3 to about 3 lbs/ft3 and/or an indentation load deflection of about 35 lbs to about 150 lbs.

Also included in the invention is a filtration medium for the purification of a liquid or a gas material comprising at least two mats, each mat having a first surface and a second surface, wherein at least one of the first surface or the second surface is substantially non-planar and has a substantially non-uniform convolution profile.

Included are devices for the filtration of a liquid and/or a gas that comprise one or more reactor modules. The reactor modules include the filtration medium and a substantially cylindrical chamber and/or a substantially rectangular chamber that may include sides, a top and a bottom. The chamber additionally includes a base that extends from the sides of the chamber towards the interior of the chamber and the filtration medium is disposed within the chamber.

Methods of filtering a gas or liquid material using the filtration medium are also provided, as are methods of fabrication of the modules.

A liquid-submersible vacuum system includes a housing canister enclosing a filtration element and a water pump. Power comes from a power converter that plugs into a standard AC power supply. The vacuum system further includes a diffuser cap and a discharge hose cap, with each providing the vacuum system with a discrete mode of operation.

The present invention discloses a method for self-cleaning filters without having to open the filter housing. Wash nozzles are integrated with the filter housings such that when the filters are clogged, both back-wash and regular washing can be performed with practically no down time. Moreover, without opening the filter housing, the hazardous components of the fluid to be filtered can be contained and dealt with before they escape the filter housing, thereby significantly reduces the environmental impact and harm to the working crew.

A filter device, in particular for fluids polluted with admixtures of water, such as diesel oil, includes a filter housing (1) having a fluid inlet (43), a fluid outlet (44) and a filter element (9). During the filtering process, the fluid can flow through the filter medium (11) of the filter element from the unfiltered side (14) to the filtered side (13) of the filter medium and into its inner filter cavity (17). On at least one side of the filter medium (11), a water-separating system (23) has a separating region (25) for separated water. The water separating system is connected via at least one water opening (35) that is open toward the separating region (25) to a water collecting chamber (45). The filter element (9) has a passage (29) forming a fluid connection to the inner filter cavity (17) and can be connected to an element receptacle (47) of the filter housing (1). A fluid-conveying system (41) forms fluid paths separated from each other. The first fluid path (59/69) leads from the fluid inlet (43) of the housing (1) to the unfiltered side (14) of the filter element (9). The second fluid path (57) connects the respective water opening (35) to the water collecting chamber (45).

A recycling bin and a cleaning device. The recycling bucket includes: an upper cover; a filtering part, which is detachably connected to the upper cover and which is provided with a plurality of filtering holes, a filtering space being formed between the filtering part and the upper cover; a sewage channel, which passes through the filtering part, and which includes a channel outlet that is located in the filtering space, the channel outlet being located above the filtering part.

A water filter for a refrigerator appliance including a transmitter power coil. The water filter includes a body forming a liquid receiving space; a filter material provided within the receiving space to filter water therethrough; a first antenna attached to the body, the first antenna facilitating a wireless communication between the refrigerator appliance and the water filter; a power harvesting circuit attached to the body, the power harvesting circuit being operably connected with the first antenna; and one or more electronic components operably coupled to the power harvesting circuit, wherein the antenna wirelessly receives a first electromagnetic field from the transmitter power coil to provide power to the one or more electronic components via the power harvesting circuit.

A filter element may include a first end cap including an end cap barrier including an inner end cap aperture and end cap flow passages configured to provide flow communication between the of interior the filter element and the exterior of the filter element. The filter element may also include a first tubular member having a first end coupled to the first end cap to provide flow communication between the inner end cap aperture and a second end of the first tubular member. The filter element may further include first filter media extending around the first tubular member, an intermediate barrier coupled to a second end of the first tubular member, and second filter media having different filtering characteristics than the first filter media. One of the first filter media and the second filter media may include a coalescing-type media configured to promote separation of a first fluid from a second fluid.

Disclosed is a hollow fiber filter arrangement and a bioreactor system comprising such a hollow fiber filter arrangement. The hollow fiber filter arrangement comprising: an inlet for receiving a sample to be filtered in the hollow fiber filter arrangement; an outlet for delivering of the filtered sample out from the hollow fiber filter arrangement; a bundle of elongate hollow fibers connected at a first end to the inlet and connected at an opposite second end to the outlet; and an outer housing enclosing the bundle, wherein a filtrate/waste collection space is provided between the outer housing and the at least one elongated hollow fiber, and wherein the outer housing is made from a flexible material.

A screw filter press comprising a screw shaft, having at least one coil turn and two screw shaft ends. The shaft axis is parallel to the gravity vector and is supported by screw shaft upper end connected to a rotary drive. The screw shaft is enclosed a filter area by a cylindrical filter tube, with openings and which is adjacent radially to a filtrate space, to which underpressure is applied. The sliding tube radially surrounding the screw shaft is the same inner diameter as the filter tube. Radial play occurs between at last one coil turn adjoining the filter tube proximate to the filter tube inner wall.

A filter unit includes an inlet for receiving unfiltered water. A first fluid path directs water through a membrane and a filter element to a first outlet. Additionally, a second fluid path directs water across the membrane and to a second outlet.