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WO/2002/089953A1 |
The invention relates to a continuous fluid filtration device comprising (i) filtration cells (1) which are disposed in the form of a carousel around a rotation axis, each cell being arranged so as to pivot around a tangential tilt axis ...
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WO/2002/085487A1 |
A method and a device for filtering a liquid (A), comprising a layer (3) of filtering particles, a first sheet-like element (2) and a second sheet-like element (4), which are essentially parallel and located a first distance (C) from eac...
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WO/2002/081050A1 |
A rain water treating device intended to such a rain water treatment in combined sewage that even when a large amount of rain water flows in, most of the pollutants can be removed, the device being characterized by comprising a plurality...
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WO/2002/076572A1 |
Provided is a filter apparatus for filtering suspended matter in water, inlcuding organic and inorganic particulates, algae, etc., while continuously concentrating and discharging suspended matter entrapped near the surface of a filter l...
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WO/2002/072227A1 |
A high rate filter relating to the field of raw water filtration technology and allowing a high rate filtration of a large amount of raw water including high density suspended solids (SS), wherein irregular or tubular floated filer media...
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WO/2002/068345A1 |
An oxygen-enriched water purifying plant (1) having rather reduced size and weight, transportable easily, and capable of developing excellent water purification function and an oxygen-enriching function with less volume of water, compris...
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WO/2002/068085A1 |
A filter for runoff water containing oil. A tank (100) receives water and feeds it to a reservoir, which feeds it to a plurality of filter cells (110, 110A). The filter cells may be cylindrical and have differing filtering media, such as...
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WO/2002/056994A1 |
Disclosed is a device and method for clarifying wastewater, in which atomized steel slag balls are packed in a filtration reactor and suspended solids and organic matter contained in the wastewater are electrically attached to the slag b...
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WO/2002/038511A1 |
The invention concerns a method for treating water for human consumption, so as to eliminate manganese and possibly other metals comprising steps which consist in: causing said water to pass at least over a bed of filtering material (3) ...
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WO/2002/036239A1 |
When backwashing a rapid filter (1) where water is washed with filter sand, a preset amount of filter sand (5) is sucked from the rapid filter (1) by a pump (2). The sucked filter sand (5) is fed to a sand washing device (3) where the co...
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WO/2002/034677A2 |
A water treatment device capable of filtering out iron and manganese in raw water by oxidizing them and making them insoluble in water includes a raw water supply tube (4), one or more jet nozzles (5), each being at one end portion there...
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WO/2002/032540A1 |
A deep bed filter (10)principally used for filtration of contaminated aqueous fluid comprises a layer of polymeric cylindrical particles (70) in combination with a layer of anthracite particles (60) and a layer of sand (50). The polymeri...
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WO/2002/028503A1 |
A multi-layer filter, wherein a filter medium inside a rotatable or swingable horizontal drum (3) is formed in a multi-layer shape with a single or a combined grading, specific gravity, and characteristic of filter medium desirably accor...
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WO/2002/028504A1 |
The invention relates to a bottom suction assembly for surface cleaning of the sand bed in a slow filter in a filter basin of a water treatment plant. The assembly is constituted by a float craft (1) which is movable in the basin and has...
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WO/2002/024306A1 |
A device for filtering a fluid is provided, wherein said filtering device comprises a fibre housing (1) having an inlet end (5) with at least one inlet and an outlet end (3) with at least one outlet. The fibre housing surrounds and defin...
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WO/2002/021908A1 |
The present invention refers to an apparatus (11) and a method for milk filtration and filter regeneration. The apparatus comprises a filter vessel (13); a loose filter material (37) housed within the vessel for filtering out contaminant...
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WO/2002/010072A2 |
A process for removing BOD and suspended solids from wastewater without passing through a primary clarifier or secondary aeration tank, the process. During the process, raw sewage wastewater, comprising soluble BOD, insoluble BOD and sus...
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WO/2002/007857A1 |
The invention relates to an improved sand filter for water purifiers such as those used in swimming pools and provided with a pump that suctions out water from the pool to the filter and returns the clean water by forming water jets, the...
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WO/2002/006166A1 |
An oriented structure for treating a fluid, comprising an inlet end for receiving a fluid to be treated and an outlet end opposite the inlet end and from which a treated fluid is discharged, the fluid being allowed to flow into the struc...
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WO/2002/004088A1 |
A sand filter, preferably for the separation of particles from a liquid, especially water is described. It comprises a preferably rotationally cylindric container (1), with a bottom (2) intended to support a bed (6) of sand particles, an...
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WO2001026772B1 |
A filter assembly (20) is described that includes a substantially recyclable filter cartridge (30) inside a pressure vessel (22). The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bea...
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WO/2001/097944A1 |
The invention relates to a device for cleaning particle-shaped filter material. Said device is comprised of: a preferably vertical tube, which is open at both ends; a nozzle (2), which is coaxially located at distance from one end of the...
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WO/2001/097948A2 |
The present invention relates to a device for separating liquid and solid material from a mixture, comprising: a filter cloth for allowing through the liquid and holding back the solid material; a carrier belt for supporting the filter c...
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WO/2001/096246A1 |
The invention concerns an effluent purifying device comprising: a clarification vessel (2), a pump (21) providing pulsed supply of the effluent into a chamber (20) placed on the upper surface of the clarification vessel (2), at least an ...
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WO/2001/083076A1 |
A filtration device (110) comprising a filter tank (111) fed with polluted water, an agitation tank (122), and a screw conveyor (23) disposed in the agitation tank (122). A filter material (51) is received in the agitation tank (122) and...
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WO/2001/080966A1 |
Apparatus and method for filtering liquid using a filter (10), which includes media (14), an airlift (24), a washbox (25), a reject box (30), a filtrate chamber (18), and an effluent box (21). The method of filtration and media cleaning ...
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WO/2001/078864A1 |
A treatment system for treating water/wastewater includes two continuously operating granular media filters that are operated together in series. The water/wastewater to be treated is introduced as an influent into the first of the granu...
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WO/2001/079117A2 |
A treatment system for treating water/wastewater includes a first (30A) and second (30B) continuously operating granular media filter which are operated together in series. The reject streams (52A,52B) from each of the two continuosly op...
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WO/2001/064310A1 |
The invention relates to a method for flushing particle-bearing filter beds which are located in circuit or linear water-treatment plants, to sterilise and decontaminate said beds. The method is characterised in that an aqueous solution ...
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WO/2001/060494A1 |
A clarification system for fluids in which particles are separated from the fluid by flotation and in which the buoyant media inducing the flotation is recycled. Flotation can be assisted by a flotation assistance device, such as dissolv...
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WO/2001/044521A1 |
The present invention relates to a process for recovering copper from solutions from the recovery of iodine from industrial wastes from the production of ionic and non-ionic iodinated X-ray contrast agents by use of chelating resins suit...
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WO/2001/032286A1 |
Conventionally, when a packing is not used, liquid leaks to a portion between a filter and a liquid port; and when a packing is used, the number of components constituting an absorber increases and, if a housing and the ring unit of the ...
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WO/2001/032560A2 |
The filtration device (1) for liquids comprises a filtration beaker (2) filled with a filtration material (4), whereby the bottom thereof (3) is provided with at least one sieve-like outlet for a liquid, in addition to comprising a lid (...
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WO2000037158A9 |
An underdrain block for a filter media system for supporting the filter media and distributing air and water backwash. The underdrain block comprising a top wall, a bottom wall and two side walls forming an open ended interior. Interior ...
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WO/2001/030474A1 |
A filter apparatus removes foreign substances contained in raw water by passing the raw water through a filter layer (8) made up of a particulate filter medium disposed in a filter tank (1). The apparatus is made up of: a partition wall ...
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WO/2001/023681A1 |
The invention relates to a sewage filter for treating especially the wastewaters of rural houses. Sewage to be treated arrives in the container of the filter via an inlet, flows in the container through a filter unit, and leaves the cont...
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WO/2001/021281A1 |
An improved coolant cleaning method, system (10), and apparatus, are provided through the use of a filter disk assembly (12) that defines and is rotatable about an axis of rotation (14) of the disk (12), for removing particulate matter f...
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WO/2001/021274A1 |
The invention concerns a device for intake of water into a granular material bed filter such as filters used for water treatment for eliminating suspended materials comprising means for injecting water and air through the filter bed and ...
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WO/2001/010786A1 |
A water filtration device (3) and method which removes heavy metals and organic compounds from raw water is provided.
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WO/2001/010531A1 |
A filter underdrain system and a method for measuring the water flow through the underdrain filter system. The apparatus includes panel members assembled to form a perforate grid on the filter base structure of an underdrain block. The p...
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WO/2001/007140A1 |
In filters of the type comprising a filter vessel (52) having a restricted access opening (58) providing access to the inside of the vessel, and a bed of particulate filter medium (54) in the vessel, the removal of filter medium from the...
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WO/2000/069539A1 |
A grout-gripping anchor for an underdrain block to be grouted to a filter floor is disclosed. Underdrain blocks have ribs extending outwardly from the exterior walls. The anchor is formed at the distant end of ribs positioned on the bott...
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WO/2000/067876A1 |
A wastewater treatment unit (10) including a recirculation chamber (32), a dosing chamber (34) having no direct fluid connection to the recirculation chamber (32), and at least two filter layers (28, 30) in a single tank (12). Each filte...
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WO/2000/066246A1 |
Method and arrangement for filtering particles out of a liquid, in which the liquid containing particles is supplied to a sedimentation tank (12), and the liquid is made, by means of hydrostatic liquid pressure prevailing in the tank, to...
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WO/2000/058226A1 |
A waste water treatment apparatus for cyclic treatment of waste water including digestible organic waste, the apparatus having a receptacle with a first chamber for primary treatment of organic waste matter deposited therein through an i...
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WO/2000/052272A1 |
Disclosed is a water treatment system (10) including: (a) a water permeable wall portion (12) defining a water treatment portion (18) of a waterway to be treated; and (b) a treating portion (20) retained in a desired position relative to...
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WO/2000/044676A1 |
The invention concerns a filtering method which consists in filtering the flow (Q) of the liquid to be filtered brought into contact with the surface (S¿2?) of a filtering medium before passing right through said medium. The invention i...
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WO/2000/043097A1 |
A compact, rapid upflow deep media filter (10) for removing suspended solids from a liquid flow, which includes: a filter casing (12) having a liquid inlet port (16), a liquid outlet port (18), and a filter bed (26) composed of a volume ...
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WO/2000/041972A1 |
A process for removing selenium from phenolic stripped sour water employing reverse osmosis and pH adjustments is provided. The process comprises (a) passing the phenolic stripped sour water through a cooling system to decrease the tempe...
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WO/2000/037159A1 |
An apparatus for cleaning a filter cloth (222) in a filtering device (200) with a rotatable drum (210) has an inlet (212) for the liquid that is to be filtered. The drum (210) has in its circumferential surface (216) openings (213) throu...
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