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WO/2004/089505A1 |
A radial or crossflow media filter comprising a housing such as a vessel or tank (1), the housing containing filter media (9), a contaminated flow inlet (2) and a discharge outlet (8), the inlet comprising a manifold (5) situated within ...
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WO/2004/087282A2 |
A grease removal system includes a solid interceptor fluidly coupled to a grease trap tank, which is fluidly coupled to a secondary tank. The secondary tank contains an enzyme solution which biodegrades the grease. The grease removal sys...
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WO/2004/082799A1 |
The present invention is directed to a composite filter medium having a pH altering material that can raise the pH of an influent such that microbiological contaminants in the influent remain substantially negatively charged such that a ...
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WO/2004/078655A2 |
A wastewater treatment system includes a septic tank having a discharge in flow communication with one or more biofilter containers having filter media therein. Wastewater or effluent from the septic tank is allowed to trickle downwardly...
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WO/2004/067136A2 |
The present invention provides an apparatus (10) and method for filtering fluids with a compressible filter media within at least a portion of a housing (25) inwardly compressible.
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WO/2004/060520A2 |
A filter material comprising a blend of at least three types of fibers: (a) polypropylene fibers (b) polymethaphenylene isophtalamide fibers and (c) fibers of a third type selected from the group of acrylic and modacrylic. In a preferred...
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WO/2004/054625A2 |
The present invention is directed to porous composite materials comprised of a porous base material and a powdered nanoparticle material. The porous base material has the powdered nanoparticle material penetrating a portion of the porous...
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WO/2004/054701A1 |
Disclosed is a container (1) for receiving a fluidized bed, comprising a turbulence chamber for receiving a medium that is to be vortexed, and a cushioning space (7) which is disposed below the turbulence chamber and is provided with an ...
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WO/2004/050210A1 |
Apparatus for inhibiting fines carryover in the form of a settlement tank comprising: a filter which divides the tank into upper and lower portions; a fluid inlet in the lower portion for admitting into the tank a fluid with entrained so...
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WO/2004/050561A1 |
In one embodiment, a reactive filtration method includes continuously regenerating a reactive filter media (22 or 76) while simultaneously filtering contaminants from fluid flowing through the filter media (22 or 76). In one embodiment, ...
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WO/2004/045742A1 |
The present invention discloses a water filter, used in the purification of mains water supply which comprises a vertically placed filter vessel (4) with a filter media (13), a system of valves (A to G), an inlet (61), an outlet (31), a ...
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WO/2004/043864A2 |
A process is used to remove suspended and dissolved material from fruit and vegetable wastewater. The steps of the process include adding a coagulant polymer to the wastewater. The steps also include the adding of a synthetic organic pol...
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WO2004013053B1 |
In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that other...
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WO/2004/035484A1 |
A low speed-filtrating apparatus has a raw water tank, a settling vessel, preprocessing apparatus, a low-speed sand filtration vessel, a clear water tank, a pump, and related apparatuses. They are received and installed to a portable thr...
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WO/2004/035663A2 |
This invention presents an ion exchange media including a plurality of cation exchange zones (C) and anion exchange zones (A) in flow paths that are contained in a substantially nonporous resin transport framework. During electrodeioniza...
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WO/2004/024289A2 |
A water treatment apparatus includes a sand filter and a second stage purification step (e.g. ozonation). The sand filter is constructed as a plurality of individual components that are in fluid flow communication. At least that uppermos...
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WO/2004/022199A1 |
A control valve assembly (10) controls the flow of water to and from a treatment tank (16) and the regeneration of the treament material therein. A housing of the valve assembly includes connections for a tank inlet and tank outlet, An i...
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WO/2004/014513A1 |
A filter device where filter sand is less likely to clog and unevenness of the sand is less likely to occur. The device enables washing and rinsing of filter material in a short time. In a filter vessel (2), a screw conveyor (32) is prov...
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WO/2004/007374A1 |
The invention relates to a filter appliance (1) comprising a dilution device, wherein the diluted portion remains largely constant when the entire volume flow is modified. Said filter device is characterised in that the flow characterist...
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WO/2004/005198A1 |
The present invention relates to a wastewater treatment tank (1) comprising a wastewater inlet (2), at least one gas inlet (6), at least another gas inlet (4), an effluent outlet (8), a backwash outlet (9) and floating filter medium (7) ...
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WO/2004/002605A1 |
Disclosed is a method and a filter unit for depleting or enriching a liquid or gas with substances(s) comprising i) providing a filter unit comprising at least one convective layer and at least one receiving layer adjacent one another, i...
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WO/2003/105987A1 |
A water treatment device comprises a raw water supply tube (4). a plurality of jet nozzles (5), each being at one end portion thereof in communication with the raw water supply tube (4) and having at the other end portion thereof a raw w...
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WO/2003/103800A2 |
For the filtration of liquids used in, say, the food industry, use is made of filters of a polymeric substance that is resistant to chemicals and water. Filter cartridges are known which have been produced by sintering or fusing particle...
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WO/2003/104588A1 |
A filtration installation for a swimming pool (2) comprising a filter vessel (4) containing a filter bed (5), an inlet pipe (6) extending between the pool and the filter vessel, a return pipe (8) extending between the filter vessel and t...
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WO/2003/089110A1 |
A solid-liquid separating device, comprising a large number of first filter plates (14) disposed at intervals parallel with each other and a large number of second filter plates (19) disposed between the first filter plates (14) so as to...
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WO/2003/086576A1 |
A filter module (1) comprising filtering layers (4, 4a, 4b) composed of a filter medium is described, in which layers of first and second draining spacing elements (10, 20) alternate and the draining spacing elements show, in an alternat...
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WO/2003/086575A1 |
A groundwater treatment system, which includes subterranean inlet (28), treatment (44) and outlet (30) portions. The inlet portion receives groundwater from an aquifer. The treatment portion receives the groundwater from the inlet portio...
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WO/2003/084882A1 |
The present invention is a composite filter for use with recycling gray water. The filter is comprised of a housing (2) containing a series of filters, a first depth filter (20), preferably made of cellulose fibers for removing particles...
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WO/2003/080482A1 |
A chip discharge system (1) with a fluid dispersing means (9) which inhibits clogging, which has a simple structure, which can spray out a uniformly-spreading flow, and which can adjust the momentum of dispersing flow without requiring a...
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WO/2003/080213A1 |
The invention concerns a method and an installation for filtering liquid media, in a completely immersed filtering mass (MF), having a height (h), forming a channel and which consists in injecting raw water (EB) at one end (E), of said c...
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WO/2003/078022A1 |
Disclosed is an environmentally friendly fluid treatment assembly comprising: a backâflushable filter, a fluid conditioning device and a control valve. During normal operation, fluid is directed by the control valve to pass through the...
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WO/2003/051486A1 |
A filtration device comprising a filtration column (1) in which are installed a filtration section (r), a liquid collecting section (7) and a liquid feeding section (e), the liquid feeding section (e) having a diffuser (A) mounted in an ...
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WO/2003/045527A1 |
A method for removal of solids in a water treatment system having multiple filters, each filter comprising an air backwash system and a water backwash system, comprising a series of steps to enable two filters to be in some stage of the ...
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WO/2003/045472A1 |
Filter cartridge assemblies and housings are provided and include a tubular housing having an inner wall, an outer wall, a first end, and a second end. The housings include inner walls with shoulders or other radially-inwardly extending ...
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WO/2003/043715A1 |
A washing tank (38) and a screw conveyor (32) are attached to an attaching port (22) in a filter tank (2) so that they can be inserted in and removed from the attaching port. For removal, a pedestal (28) supporting the screw conveyor (32...
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WO/2003/043716A1 |
A filter assembly (15) for filtering e.g. stormwater includes flow regulating, siphon inducing, and surface cleaning features that allow the filter assembly to operate at the design filtration rate for an extended period of time. During ...
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WO/2003/035212A1 |
A liquid filter or cartridge is disclosed, in which the filter bed is divided into multiple, parallel filter beds in a single filter housing. The divided bed system is preferably used for granular media such as activated carbon that is s...
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WO/2003/035213A1 |
The invention relates to a device and a method for the purification of effluent. The device comprises a filter container (1A), containing a filter medium (2a, 2b), through which the contaminated effluent (3) is run in a direction (filtra...
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WO/2003/033099A1 |
A filtration vessel has an inlet for inflow into the filtration vessel of liquid media to be filtered, a body of filter media in the filtration vessel, and a drain to receive filtered liquid media for take off from the filtration vessel....
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WO/2003/031016A1 |
A water treatment tank (1) defines a space (5) that contains a bottom layer (29) of gravel and a top layer (31) of a filter material, which has to be replenished in course of time. A top opening (6) is provided for accessing the tank (1)...
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WO/2003/024560A2 |
A filter device for filtering flowing liquids comprises a compressible filter medium in a container and a device with which said medium may be compressed using an operating handle so that contaminants can be squeezed from the filter medi...
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WO/2003/022041A1 |
A self-contained aquaculture system (10) comprising a modular building (11) defining a first main chamber (12) for containing fish or marine invertebrates, a second swirl chamber (13) comprising a primary filter communicating with the ma...
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WO/2003/022749A1 |
The invention relates to a method for treating water, especially waste water and drinking water, containing both pathogenic germs and a substance which is difficult to decompose and is from the group comprising persistent substances, end...
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WO/2003/018160A2 |
A biological filter element includes a support element (10) of generally ellipsoidal configuration. The support element (10) has two opposite polar regions and includes a medial ring (12) intermediate the two opposite polar regions and a...
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WO/2003/018486A1 |
A filter assembly has a compressible filtering medium (18, 19) disposed in the flow path of water from the upstream region of an inlet chamber (11) to a downstream outlet (17). Said compression of the filter medium by the water passing t...
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WO2002030543A9 |
A rotating drum pressure differential filter is provided whereby a layer of filter medium is continuously refreshed by a spray applicator device after the layer is utilized to filter components from a sample medium and a portion of the l...
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WO/2003/008065A1 |
A backwash valve controls or switch the direction of water flowing through a filter so as to filter foreign materials from water and/or automatically discharge foreigh materials previously filtered by the filter. The backwash valve compr...
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WO/2003/008064A1 |
A distributor/collector system (10) includes a distributor (40) comprising an upper header (14) having upper laterals (16) carrying fluid away from the upper header and a collector (20) comprising a lower header (24) having lower lateral...
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WO/2003/006136A1 |
The present invention includes a method for filtering flowing fluid so as to remove undesirable particulates and bacterial constituents and fluid filters for performing the method. The method comprising providing an enclosed channel for ...
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WO/2002/092191A1 |
A media bed support grid (10) for use with a vessel (14) having an inner surface. The media bed support grid comprises a plurality of filter panels (12), each filter panel having a plurality of parallel and spaced-apart filter wires (18)...
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