Movable Means For Particle Pickup And Redeposit Patents (Class 210/270)
  • Patent number: 8877050
    Abstract: The present invention relates to a process for the treatment of liquid effluents laden with hydrocarbons, which comprises: feeding the effluents into a treatment tank; supplying the treatment tank with a reversible sorbent having a defined particle size; mixing the effluents with the reversible sorbent in the treatment tank in order to load said reversible sorbent with the hydrocarbons in the effluents; removing the hydrocarbon-laden reversible sorbent from the top of the treatment tank; extracting the treated effluents from the bottom of the treatment tank; and separating the hydrocarbons from the laden reversible sorbent from the treatment tank.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: November 4, 2014
    Assignee: Osead Hydrocarbon Technologies, SAS
    Inventors: Christian Martin, Rene Pascal
  • Patent number: 8802913
    Abstract: A process for separating a product from a multicomponent feedstream to an adsorption apparatus or system is described. The apparatus or system may comprise a moving-bed or a simulated moving-bed adsorption means. The product comprises at least one organic compound, such as an aryl compound with alkyl substitutes. In embodiments the conduits used to supply the feedstream to the apparatus or system are flushed with media of multiple grades. The improvement is a more efficient use of the desorbent. In embodiments the process achieves improvements in one or more of efficiency of adsorption separation, capacity of adsorption apparatus systems, and purity of product attainable by adsorption process.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: August 12, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: John R. Porter
  • Publication number: 20140166594
    Abstract: An external device for cleaning a filtration material is applied to a filtration device for filtering a supplied unfiltered liquid by layers of a filtration material to remove muddiness in the liquid and discharging the cleaned liquid to the outside. The cleaning device has an upstanding outer tube, a screw conveyor rotatably placed in the outer tube and transferring the filtration material upward from the lower rod to the upper end of the outer tube while rub-washing the filtration material, a drive section for rotationally driving the screw conveyor, a control section for controlling rotation of the drive section, and a discharge tube for discharging the filtration material having been rub-washed, into a filtration container from the inside of the outer tube and an introduction tube that introduces the filtration material into the outer tube.
    Type: Application
    Filed: February 20, 2014
    Publication date: June 19, 2014
    Applicant: NIHON GENRYO CO., LTD.
    Inventor: Yasuhiro SAITO
  • Publication number: 20120292245
    Abstract: The cleansing apparatus is equipped with: an upright outer cylinder and a screw conveyor is rotatably provided within the outer cylinder. The screw conveyor conveys filtration media introduced through an inlet at the lower end of the outer cylinder upward to an outlet at the upper end of the outer cylinder. A drive section rotationally drives the screw conveyor. A control section controls the rotation of the drive section. A regulating blade regulates the upward movement of the filtration media is above the outlet and is coaxially with the screw conveyor. A cleansing liquid is introduced through an aperture above the regulating blade within the outer cylinder.
    Type: Application
    Filed: June 30, 2010
    Publication date: November 22, 2012
    Applicant: NIHON GENRYO CO., LTD.
    Inventor: Yasuhiro Saito
  • Patent number: 7829839
    Abstract: An optical tweezers lifting apparatus is provided. The optical tweezers lifting apparatus includes an optical tweezers and a particle-lifting device. The particle-lifting device includes a substrate and a plurality of electrodes that are disposed on the bottom of a flow path in the substrate. When a dielectrophoresis (DEP) solution with a plurality of floating particles is conducted into the flow path and upon those electrodes and a voltage is applied to these electrodes, these particles would be driven by a negative DEP force to move upward to a specific depth in the flow path. Meanwhile, the optical tweezers of the apparatus is selectively focused at the specific depth in the flow path.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: November 9, 2010
    Assignees: Raydium Semiconductor Corp.
    Inventors: Cheng-Hsien Liu, William Wang, Long Hsu, Chung-Cheng Chou, Sheng-Yang Tseng, Chen Peng, Fung-Hsu Wu, Ta-Yuan Lee
  • Publication number: 20100230343
    Abstract: A water treatment apparatus includes a first treatment tank forming thereon a first, fixed bed includes a powdery phosphorus adsorbent includes an inorganic layered compound, wherein the first bed separates phosphorus and solid matter from the water, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the first bed, a second treatment tank forming a second, fluidized or fixed bed includes the phosphorus adsorbent, wherein the second bed separates phosphorus from the water received from the first treatment tank, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the second bed, and a transferring line configured to transfer the phosphorus adsorbent, having phosphorus adsorbed thereon in the second treatment tank, from the second treatment tank to the first treatment tank.
    Type: Application
    Filed: January 27, 2010
    Publication date: September 16, 2010
    Inventors: Shinobu Moniwa, Masahiko Tsutsumi, Hidetake Shiire, Nobuyuki Ashikaga, Satomi Ebihara, Katsuya Yamamoto
  • Publication number: 20100147759
    Abstract: An external device for cleaning a filtration material and adapted for application to a filtration device, in which the filtration material can be automatically cleaned easily and at low cost without requiring replacement of an existing filtration device with a newly purchased device. An external device for cleaning a filtration material is applied to a filtration device for filtering a supplied unfiltered liquid by layers of a filtration material to remove muddiness in the liquid and discharging the cleaned liquid to the outside.
    Type: Application
    Filed: May 7, 2008
    Publication date: June 17, 2010
    Applicant: NIHON GENRYO CO., LTD.
    Inventor: Yasuhiro Saito
  • Publication number: 20090178980
    Abstract: Exemplary systems and methods relating to water treatment are described. One implementation filters water through a moving bed media filter sufficient to decrease the water's turbidity. This implementation simultaneously disinfects the filtered water and at least a portion of the moving bed media filter with ultra violet (UV) energy.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 16, 2009
    Applicant: Blue Water Technologies, Inc.
    Inventor: Remembrance L. Newcombe
  • Patent number: 7520986
    Abstract: A filtration device is equipped with: a filtration tank; a layer of particulate filtration media within the filtration tank; a cleansing tank, which is vertically placed within the filtration tank and which has an opening at the lower end thereof; and a screw conveyor for cleansing the filtration media, which is provided within the cleansing tank. The screw conveyor has a shaft, which is suspended within the filtration tank from above. The upper portion of the shaft is driven, and the lower portion of the shaft is supported by an axial support section, which is fixed to the lower portion of the cleansing tank. The axial support section is equipped with a frictional wear compensating mechanism at a portion thereof at which the shaft and the axial support section contact each other.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: April 21, 2009
    Assignee: Nihon Genryo Co., Ltd.
    Inventor: Yasuhiro Saito
  • Publication number: 20080173581
    Abstract: An aerated biological filtration system (10) for treating waste water includes a treatment vessel (11) of elongated configuration which incorporates a circulating filter bed (23) and a static filter bed (24). The circulating filter bed incorporate a particulate material such as granulated activated carbon having a specific gravity in the range of 1.2 to 1.4 and effective size of 0.6 mm to 1.5 mm. The circulating filter bed is disposed above the static filter bed and an aeration system (27) is disposed between the filter beds. The aeration system is arranged to diffuse air through the circulating bed either continuously or intermittently so as to provide oxygen to micro-organisms attaching to the particulate material and to cause slow circulation of that particulate material. The system has particular application for domestic recycling of grey water.
    Type: Application
    Filed: November 22, 2005
    Publication date: July 24, 2008
    Applicant: NUBIAN WATER SYSTEMS PTY LIMITED
    Inventor: Gregory W. Maclean
  • Patent number: 7169303
    Abstract: Systems and methods for extracorporeal processing of blood or other body fluid for the treatment of conditions, such as sepsis, autoimmune disease, or toxemia related to kidney failure, liver failure, or drug overdose are provided. In an extracorporeal treatment system, a fraction of a body fluid is passed into a treatment fluid, at least a portion of which is then passed through a sorbent suspension reactor for treatment by a sorbent suspension. The treatment fluid circuit can be maintained at a fixed volume, which enables accurate fluid balance between the patient and the extracorporeal circuit. Some or all of the treatment fluid, optionally also containing nutrients and/or therapeutic agents, is returned to the patient. In a peritoneal dialysis system, dialysate is passed into a patient's peritoneal cavity, recovered from the cavity, passed through a sorbent suspension reactor in accordance with the invention, and returned to the cavity.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: January 30, 2007
    Assignee: HemoCleanse Technologies, LLC
    Inventors: Thomas A. Sullivan, David J. Carr, Stephen R. Ash
  • Patent number: 7160452
    Abstract: A filtration device that enables efficient cleansing and rinsing of filtration media within a short time, in which filtration sand is not likely to become clogged, and in which unevenness within filtration sand is not likely to occur comprising a screw conveyor 32 provided within a cleansing tank 38, which is suspended from the upper portion of a filtration tank 2, a space 52 being formed between a filter bed 4 and a wire mesh 50, which are vertically separated, filtration media 14 provided on the wire mesh 50, and filtration media 54, having larger particle sizes than the filtration media 14, provided within the space 52 and a plurality of strainers 12 provided in the filter bed 4 and cleansing water spraying pipes 58 provided on an outer wall surrounding the space 52 and after the screw conveyor 32 is rotated and the filtration media 14 has been cleansed, cleansing water is sprayed from a filtered water discharge pipe 46 and the cleansing water spraying pipes 58, to expel contaminants through a raw water su
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 9, 2007
    Assignee: Nihon Genryo Co., Ltd.
    Inventor: Yasuhiro Saito
  • Patent number: 7090771
    Abstract: The invention is directed to a filter underdrain for supporting a filter media between at least two dividers forming at least one cell, which includes at least one porous plate for supporting the filter media for filtering a fluid, the porous plate spanning across at least one of the dividers; and a plurality of support members beneath the porous plate, the support members containing at least one port for draining the fluid after the fluid passes through the porous plate. The porous plates may be bound together by a lap joint and an end section may be included between at least two of the support members, the end section containing at least one pocket for holding the porous plate.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 15, 2006
    Assignee: Infilco Degremont, Inc.
    Inventors: John D. Dyson, Jack H. Jessop, Harold W. Johnson, Jr., Louis U. Brittingham, Jr., Gregory Matanoski
  • Patent number: 6706521
    Abstract: A reaction chamber is adapted to contain a fluidized bed having a slurry of liquid, media and biomass. A lift and motive fluid are provided to urge slurry from the reaction chamber through a passage from a slurry inlet to a slurry discharge. The height of the slurry inlet is adjustable with respect to the bottom of the reaction chamber to help control the fluidized bed.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: March 16, 2004
    Assignee: Envirogen, Inc.
    Inventor: Samuel Frisch
  • Publication number: 20010004974
    Abstract: The invention relates to a method and an apparatus for cleaning the sand beds of slow sand filters, infiltration basins and pools of other types having sand beds in water treatment works and similar plants, while the filter is in service, by removing a few centimeters of the bed surface, cleaning the sand of the sludge or filter film formed on the bed surface, returning the cleaned sand to the bed, and discharging the separated sludge, suspended in water to drain or to a suitable disposal site. This is achieved using a tracked cleaning machine equipped with a submersible pump (7) and nozzle (8) to remove the top layer of sludge-bearing sand from the bed, cleaning the sludge from the sand thus removed in a hydrocyclone (13), returning the cleaned sand to the bed via a spreader plate (15) and discharging the water-suspended sludge to a drain or to a suitable disposal site through a hose (17).
    Type: Application
    Filed: January 22, 2001
    Publication date: June 28, 2001
    Applicant: Weda Poolcleaner AB.
    Inventors: Anders Ekenback, Klas Lange
  • Patent number: 6228256
    Abstract: The invention relates to a method and an apparatus for cleaning the sand beds of slow sand filters, infiltration basins and pools of other types having sand beds in water treatment works and similar plants, while the filter is in service, by removing a few centimeters of the bed surface, cleaning the sand of the sludge or filter film formed on the bed surface, returning the cleaned sand to the bed, and discharging the separated sludge, suspended in water to drain or to a suitable disposal site. This is achieved using a tracked cleaning machine equipped with a submersible pump (7) and nozzle (8) to remove the top layer of sludge-bearing sand from the bed, cleaning the sludge from the sand thus removed in a hydrocyclone (13), returning the cleaned sand to the bed via a spreader plate (15) and discharging the water-suspended sludge to a drain or to a suitable disposal site through a hose (17).
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: May 8, 2001
    Assignee: Weda Poolcleaner AB
    Inventors: Anders Ekenbäck, Klas Lange
  • Patent number: 6143186
    Abstract: A continuous filter device for liquids has a filter chamber that receives a granular bulk material forming a filter bed. The filter chamber has rectangular inner-walls with a liquid-permeable inlet side and a liquid-permeable outlet side positioned opposite the inlet side. A liquid-impermeable outer wall is positioned at the inlet side and forms together with the inlet side an inlet chamber. The inlet side has openings allowing flow of a liquid to be filtered from the inlet chamber into the filter chamber. A liquid-impermeable outer mantle is positioned at the outlet side and forms together with the outlet side a filtrate collection chamber. The outlet side has openings allowing filtrate flow from the filter chamber into the filtrate collection chamber. A cone-shaped removal chamber is connected to a lower end of the filter chamber. A flow discharge chamber is connected to an upper end of the filter chamber.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: November 7, 2000
    Inventor: Sabine Van Unen
  • Patent number: 5762801
    Abstract: In the biological purification of sewage water or drinking water, it is known to purify the water in a filter bed of granular filter medium, wherein the filter medium is transported from the bottom of the bed to its upper side with the aid of air, so as to obtain a continuously working filter. It is suggested in accordance with the invention that the amount of filter medium to be transported is divided into two or more parts which are transported in parallel, so as to prevent the flow conditions in the transport tube having a negative effect on the reactivity of the filter bed by decreasing the bacteria strain.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: June 9, 1998
    Assignee: Nordic Water Products AB
    Inventors: Kurt Jonsson, Lennart Lenvik, Magnus Hagrot, Jonas Oskarsson
  • Patent number: 5681472
    Abstract: A filtering process for and apparatus separating air bubbles and granular filter medium from a filtrate contaminated by the filter medium and bubbles when passing through a filter bed formed by the filter medium for treatment of a suspension or liquid solution, a gas being passed through the filter medium in contact therewith, includes providing a treated filtrate zone (3) above the filter bed (2), collecting the treated filtrate in the filtrate zone, conducting granular filter medium from the filter bed (2) upwardly through a conveying pipe (4) to a position above the filter bed and thereafter downwardly through a washing apparatus (5) from which the filter medium is precipitated onto a plate (11) above the filter bed.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: October 28, 1997
    Assignee: Nordic Water Products AB
    Inventors: Kurt Jonsson, Magnus Hagrot, Lennart Lenvik
  • Patent number: 5198398
    Abstract: A relatively simple and more economical method for regenerating activated carbon wherein at least partially spent activated carbon is fed from a portable container directly to a heating zone without the use of liquid to transport the at least partially spent activated carbon to the heating zone. A portable container for use in the activated carbon regeneration method can be used to hold the activated carbon during adsorption processes, during storage of the activated carbon, and during transportation of the activated carbon between an adsorption site and a regeneration site. In the activated carbon regeneration method, the portable container is preferably positioned adjacent a conveyor so that the spent activated carbon can be delivered directly to the conveyor with an auger. The spent activated carbon is then fed directly to the heating zone with the conveyor.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: March 30, 1993
    Assignee: American Norit Company, Inc.
    Inventor: Eddy van Duijn
  • Patent number: 4818419
    Abstract: A method of cleaning and removing clogging material from a clogged granular filter medium of a granular filter device is disclosed. A collector is positioned proximate the clogged filter medium for collecting the clogged filter medium together with a portion of the water contained within a tank housing the clogged granular filter medium. An input of a first pump is connected in fluid tight communication with the collector. A conduit is connected in fluid tight communication with an output port of the first pump. The conduit is connected to a reservoir.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 4, 1989
    Assignee: Uddo-Mims International, Inc.
    Inventor: Ken Mims
  • Patent number: 4655908
    Abstract: The present invention relates to a device for cleaning of liquids in sand filters of the up-stream type.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: April 7, 1987
    Assignee: Stubinen Utreckling AB
    Inventor: Gillis Franzen
  • Patent number: 4524139
    Abstract: This invention relates to a process and apparatus for the compressive regeneration of flexible, porous materials used as filter particles, oil-separating particles or carrier particles in a reactor. These materials are loaded in a reactor with a liquid containing substances to be removed. The liquid is, for example, water, and the substances are, for example, deposited solids, oil droplets or bacteria. After the flexible, porous materials become loaded with the substances, they are conducted to a press chamber equipped with a press means. The transporting, squeezing out, and separation of the water and substances from the flexible porous materials, as well as the recycling of the regenerated material into the reactor are achieved by either a one-time, or a repetitive to and fro movement, of the press means. This regeneration is accomplished with a single device which operates simultaneously as both a regenerating press and as a conveying installation.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: June 18, 1985
    Assignee: Linde Aktiengesellschaft
    Inventor: Uwe Fuchs
  • Patent number: 4482457
    Abstract: The invention relates to an apparatus for filtering a suspension or emulsion and comprising a bed (6, 7) of a particulate filter material arranged in a container or tank (1), one or more inlets (8) arranged at the lower part of the bed for the suspension or emulsion to be filtered, means (3) for removing filtrate and arranged above the bed, elevator means (13) for conveying contaminated filter medium from the lower part of the bed to a means (14) for washing or other treatment of the filter medium, and means for recycling treated filter medium to the upper part of the bed. According to the invention, the elevator means (13) for conveying contaminated filter medium is arranged movable along the horizontal extent of the filter bed and is preferably placed on a carrier means (14) which can be given a reciprocating movement, is arranged above the filter bed and also carries the means (14) for treating the filter medium.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: November 13, 1984
    Assignee: Carex Process AB
    Inventor: Sten F. Jacquet
  • Patent number: 4337006
    Abstract: A device for preparing a trench or dam for the recharging of an aquifer or similar use and for cleaning the recharging means. The aquifer recharging means is shown in my U.S. Pat. No. 4,199,272. The trench preparing device includes a protective frame surrounding one or more rolls of membrane adapted to be played out as the frame is pulled through the trench to line the trench. A gate-type mechanism is provided to prevent dirt or gravel from entering the frame as the membrane is pulled out.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: June 29, 1982
    Inventor: Edward H. Lacey