Backwash Or Blowback Means Patents (Class 210/275)
  • Patent number: 9933343
    Abstract: The apparatus of the present invention comprises an integrated membrane for separation and preservation of biomolecules. Biomolecules, such as those in blood, can be separated and preserved. The apparatus includes a housing having a matrix portion, and a fluid collection portion disposed within an inner cavity. The housing further includes an aperture permitting access to the inner cavity. The apparatus also includes a matrix disposed within the matrix portion. The matrix includes a first layer for collecting cells from the fluid, a second layer for protein adsorption, and a third layer for nucleic acid adsorption. Fluid enters the housing through the aperture, passes through the matrix, and into the fluid collection portion. Cells from the fluid in a layer of the matrix are collected; adsorbing protein from the fluid in a layer of the matrix; and adsorbing nucleic acid from the fluid in a layer of the matrix.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 3, 2018
    Assignee: CHROMOLOGIC LLC
    Inventors: Naresh Menon, Peter Bui, Cheryl Tan
  • Patent number: 9833731
    Abstract: Embodiments of the present disclosure could generally provide a relatively easily squeezable beverage bottle that allows control of the flow rate of the liquid being dispensed to the user. The bottle could provide sufficient radial rigidity—or resistance to squeezing—to return to its original shape (or “bounce back”) at a suitable rate without experiencing permanent deformation or denting and to withstand the rigors of filling, shipping, transporting, dispensing, etc. The present disclosure generally provides a beverage bottle filtering system that provides adequate filtering of water taken from the bottle at a suitable rate. In one embodiment, the present disclosure could include a support system to adequately secure the filter media within a filter housing while ensuring a sufficient compression fit and seal of filter media within filter system to eliminate “bypass flow” (i.e., water that might leak past filter system) and prevent consumption of unfiltered water.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 5, 2017
    Assignee: O2C Raleigh, LLC
    Inventors: Randy E. Carter, Brian D. Schumacher, Edward A. Kidston, Karim Rashid, Richard Smiedt
  • Patent number: 9610541
    Abstract: A method of accelerated testing of a membrane module for resistance to cyclic stress during operation of an industrial membrane separation process comprising loading at least one membrane module into a test cell of a test plant; conducting said industrial membrane separation process while subjecting said membrane module to cyclic stresses during a plurality of membrane operating cycles, each cycle being of significantly lesser duration than used for operation of said industrial membrane separation process in an operating plant; and testing said membrane module for component failure caused by said cyclic stresses.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 4, 2017
    Assignee: CENTRAL GIPPSLAND REGION WATER CORPORATION
    Inventors: Andrew Hodgkinson, James Stanley Kay, Stuart Douglas Harrison
  • Patent number: 9481591
    Abstract: The device and process is designed to treat sewage, food processing and other biologically contaminated wastewater without the addition of any chemical or physical agitation. It consists of a series of chambers in specific arrangement to achieve the required nutrient removal and disinfection which kills any bacteria, viruses, fungi and parasites. The treated water can be safely discharged, injected into the groundwater or used for irrigation.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 1, 2016
    Inventors: Aaron Goldstein, Barbara Blake, Glen A. Menture
  • Patent number: 9403108
    Abstract: A filtration operator for filtering raw water, comprising a plurality of filtration units, a raw water reservoir, a conduit for conveying raw water from the raw water reservoir to individual ones of the filtration units, filter medium provided in each of the filtration units for filtering raw water, a respective raw water chamber configured to be in water communication with the raw water reservoir, the filtration units, and a pump chamber, a sludge filtering and recycling chamber for receiving sludge from the filtration units during a backwash cycle, and at least one positively charged bar disposed in each of the raw water chambers, as well as in a sludge receiving chamber associated with the sludge filtering and recycling chamber.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: August 2, 2016
    Assignee: GLOBAL SPLASH, INC.
    Inventor: Ronney L. Broussard
  • Publication number: 20150136679
    Abstract: The present invention aims at limiting the pressure loss and smoothly discharging water treated by ion exchangers to the outside of the apparatus. Ion exchanging apparatus 1 has outer vessel 3 that has inner space 2; and ion exchanger support 4 that separates at least a part of inner space 2 into upper space 2a and lower space 2b and that can support ion exchangers to be loaded in upper space 2a. At least a part of an upper surface of the ion exchanger support is made from at least one screen which supports the ion exchangers and which has a flow path allowing water treated by the ion exchangers to flow into the lower space 2b.
    Type: Application
    Filed: May 1, 2012
    Publication date: May 21, 2015
    Applicant: ORGANO CORPORATION
    Inventors: Mitsuru Yoden, Mikio Sugano, Kazuhiko Saiki, Reo Matsutani, Kazuhiro Nishikawa
  • Patent number: 8999155
    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: Grant
    Filed: June 30, 2010
    Date of Patent: April 7, 2015
    Assignee: Nihon Genryo Co., Ltd.
    Inventor: Yasuhiro Saito
  • Patent number: 8992774
    Abstract: A filter system having a filter bed for filtering water or wastewater, where the filter bed is periodically washed between service runs by directing washing liquid and washing gas upwardly through the filter bed. The filter system includes a filter bed and at least one flume. The flume is in fluid communication with the filter bed. Preferably, the flume is configured such that no washing liquid and washing gas interface is present in the flume. The flume may be configured such that during washing of the filter bed between service runs the flume receives a washing gas and directs the washing gas upwardly through the filter bed to assist in cleaning the filter bed between service runs. The flume may further be configured such that during washing the only liquid directed from the flume to the filter bed is residual liquid that may be present in the flume from a prior service run.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 31, 2015
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison, Andrew Scott Taylor, Jason Samuel Schmoyer
  • Patent number: 8945384
    Abstract: A method and system for fluid treatment that provides fluid release cycles within the regeneration sequence of a fluid treatment device. The fluid release or backwash air cycle permits the slow, controlled and metered release of air or gases from a treatment tank.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: February 3, 2015
    Assignee: Water-Right, Inc.
    Inventors: Kurt Gruett, Guy Gruett
  • Publication number: 20150008195
    Abstract: The invention relates to a method for washing a filter (F) having at least two layers of filtering media (4, 5) for raw water containing components having a tendency to form cakes (M), in particular for seawater, the layers of filtering media being supported by a base (6) comprising pass-through openings and provided with nozzles (6a) enabling air and/or wash water to be injected, the raw water flowing through the layers from top to bottom and the treated water being recovered at the lower portion of the filter, and which comprises at least one spillway (D) at the upper portion thereof for collecting the wash water.
    Type: Application
    Filed: January 19, 2013
    Publication date: January 8, 2015
    Inventor: Gerard Flores
  • Patent number: 8889003
    Abstract: An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, and a bottom wall extending between the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber having a plurality of openings defined by at least one of the bottom wall and the pair of side walls.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: November 18, 2014
    Assignee: Xylem Water Solutions Zelienople LLC
    Inventors: Dean T. Berkebile, Daniel E. Bruce, Christopher J. Ball
  • Publication number: 20140332458
    Abstract: Aspects of the present disclosure involve systems, methods, products, and the like, for a filtration system that incorporates a plurality of back-washable filter cells into a cell manifold for filtering contaminants from a fluid. Each of the filter cells of the filter system are a small fluid filtration unit that includes a contained granular filtration media that can independently perform regenerative filtration functions of filtration and backwash. In one particular embodiment, the cell manifold is a cylindrical-shaped manifold into which the plurality of filter cells are housed. During operation, the filter system passes fluid through one or more of the filter cells of the cell manifold during a filter cycle, and distributes fluid for backwashing the cells in a backwash cycle. The filter cells of the filtration system utilize a counter-point compaction of the granular media that radially displaces outwardly the granular media.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: FiltraSonics LLC
    Inventors: Joseph D. Cohen, Neel Duncan
  • Patent number: 8871093
    Abstract: A filter system for filtering a liquid containing particles including a single media retainer plate having a top and bottom surface, and defining at least one hopper-shaped compartment having a sloped wall defining a slot spanning the top and bottom surfaces is disclosed. The plate also includes at least one baffle extending from the bottom surface and filter media disposed on the top surface. During a filtering operation of the filter system, the filter media captures the particles, such as dirt, from the liquid as the liquid passes through the filter media to an underdrain system. During a backwash operation of the filter system, the baffle is adapted to direct a backwash fluid in a vertical direction through the slot so that the backwash fluid actuates the filter media to scour the top surface of the plate and prevent the build-up of biological scaling on the plate.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 28, 2014
    Assignee: Xylem Water Solutions Zelienople LLC
    Inventors: Christopher J. Ball, Brian Bates
  • Patent number: 8834711
    Abstract: The present invention relates to an upstream ozone contact tank for removing residual ozone. The upstream ozone contact tank includes an inlet through which purified raw water flows, at least one contact chamber, at least one reaction chamber, an upstream contact chamber, and an outlet that discharges ozone-treated raw water. Especially, the invention provides an upstream contact chamber between the reaction chamber and outlet, wherein the upstream contact chamber includes carbonaceous filter media mounted on a porous plate. An openable gate unit is installed at the lower part of a panel partitioning a final reaction chamber and the upstream contact chamber and controls flow rate. Additionally, the invention enables upstream flow of the raw water flowing into the upstream contact chamber from the final reaction chamber so that the raw water may pass through the carbonaceous filter media upwardly.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: September 16, 2014
    Assignee: Seoul Metropolitan Government
    Inventors: Woo Hyeun Joe, Young Ae Baek, Gang-Seok Baek, Byeong-Eui Hong, Byeong-Chul Jang, Mun-Ho Son, Young Jun Choi, Sang Tae Han
  • Publication number: 20140231356
    Abstract: The present invention relates generally to a system and method for treating wastewater in a filter media apparatus having a draft tube system. The filter media may be walnut shell media.
    Type: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicant: SIEMENS ENERGY, INC.
    Inventors: Chad L. Felch, Michael Howdeshell, Stuart J. Munson, Eric A. Lorge, Bryan J. Kumfer, Matthew Patterson
  • Patent number: 8747667
    Abstract: The present invention relates generally to a system and method for treating wastewater in a filter media apparatus having a draft tube system. The filter media may be walnut shell media.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: June 10, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: Chad L. Felch, Michael Howdeshell, Eric A. Lorge, Bryan J. Kumfer, Stuart J. Munson, Matthew Patterson
  • Patent number: 8696896
    Abstract: An apparatus for treating a liquid containing impurities may comprise: a filtering chamber for receiving liquid containing impurities, the filtering chamber containing granular media and configured to permit the granular media to interact with the liquid containing impurities, thereby removing impurities from the liquid to produce filtrate; a filtrate section in communication with the filtering chamber for receiving the filtrate, the filtrate section being in communication with a first outlet for outflow of the filtrate; a gas supplying system for delivering gas to the granular media in the filtering chamber for transport of a portion of the granular media to a granular media washer; and a reject section in communication with the granular media washer for receiving a reject mixture comprising liquid and impurities from the granular media washer. The reject section may be in communication with a second outlet for outflow of a portion of the reject mixture.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: April 15, 2014
    Assignee: Parkson Corporation
    Inventors: Brett H. Boyd, Russell L. Cook, Adrian Streng
  • Patent number: 8695613
    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: Grant
    Filed: May 7, 2008
    Date of Patent: April 15, 2014
    Assignee: Nihon Genryo Co., Ltd.
    Inventor: Yasuhiro Saito
  • Publication number: 20140076817
    Abstract: Embodiments of the present invention provide systems and methods for purifying produced water, comprising a closed loop cation exchange unit, a closed loop anion exchange unit, and an intermediate degasifier.
    Type: Application
    Filed: September 17, 2012
    Publication date: March 20, 2014
    Applicant: SEVERN TRENT WATER PURIFICATION, INC.
    Inventors: Richard Dennis, Christopher Clark
  • Patent number: 8658036
    Abstract: A filtration and demineralization apparatus 10 including a vessel 20 in a form of a body of revolution; a hollow columnar body 40 that is located in an internal space of the vessel 20, one end 40a of the columnar body being connected to an inner surface of the vessel 20 along an entire circumference of the end, and the other end 40b of the columnar body forming an opening; and a partition plate 44 that is connected to the other end 40b of the hollow columnar body along an entire circumference of the other end 40b, the partition plate being configured to separate an inside space or an outside space of the hollow columnar body 40 as an independent space in the vessel. The partition plate 44 has a circulation port 43 that allows water that is to be treated to pass therethrough.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: February 25, 2014
    Assignee: Organo Corporation
    Inventors: Mitsuru Yoden, Satoshi Kasahara, Mikio Sugano
  • Publication number: 20140021121
    Abstract: A filter system for filtering particles from a liquid includes an underdrain assembly having an underdrain defining at least one underdrain chamber and a media retainer assembly. The media retainer assembly includes an upper filter media retainer plate defining a plurality of hopper-shaped cavities and a lower filter media retainer plate defining a plurality of hopper-shaped cavities corresponding to the plurality of hopper-shaped cavities on the upper plate. The plates are in a nested arrangement such that the hopper-shaped cavities on the upper plate are in alignment with the corresponding plurality of hopper-shaped cavities on the lower plate to define a plurality of passages therebetween and allow for the passage of the liquid while preventing the passage of a filter media. During a backwash operation, the upper and lower plates are relatively moveable such that the backwash fluid releases any particles lodged in the passages between the plates.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 23, 2014
    Applicant: XYLEM WATER SOLUTIONS ZELIENOPLE LLC
    Inventors: Christopher J. Ball, Brian J. Bates, Howard James Sweeney
  • Publication number: 20140001124
    Abstract: A single, mixed-bed column of Birm® over Filox® to remove iron and manganese, thereby protecting Filox®, the oxidizing media, from fouling by iron and manganese. This helps to remove iron and manganese to low levels so that As(III) may be oxidized to As(V) more efficiently before it is treated with adsorptive media.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Inventors: Thomas John Sorg, Abraham Shou-Chien Chen
  • Publication number: 20130220913
    Abstract: A fluid filter, with a media body that comprises granular filter media and is capable of transitioning from a compacted state to an expanded state, may allow for multiple filtration cycles with regeneration of the granular filter media via backwashing cycles. Two or more of such filters may also be used in filtration apparatuses that is configured for continuous filtration including during backwashing of one of the filters.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 29, 2013
    Applicant: Ticona LLC
    Inventor: Ticona LLC
  • Publication number: 20130134100
    Abstract: Compacted filter beds comprising a non-sintered, buoyant filter medium may be useful in fluid filtration apparatuses and methods. For example, a method may include filtering a first fluid through a filter bed that is compacted, the filter bed comprising a non-sintered, buoyant filter medium that is mechanically compacted; and backflushing a second fluid through the filter bed so as to fluidize the non-sintered, buoyant filter medium.
    Type: Application
    Filed: October 17, 2012
    Publication date: May 30, 2013
    Applicant: Celanese Acetate LLC
    Inventor: Celanese Acetate LLC
  • Patent number: 8440074
    Abstract: The present invention provides a system and method for treating wastewater in which the majority of solids and biological oxygen demand compounds are separated from the wastewater feed using a primary separation process, to produce a solids phase and a water phase. The solids phase is irradiated to reduce the level of pathogens such that it is safe to use as a soil substitute and/or additive so that the solids can thus be disposed of in an environmentally-friendly manner. In additional embodiments, the solids that have been disinfected by radiation are mixed with a suitable inert filler material to produce a soil substitute, fertilizer, compost, or other soil additive. The liquid phase is treated in a substantially smaller system than would be required for treating the full-strength wastewater that can include a suspended media biological regeneration reactor system.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 14, 2013
    Assignees: Saudi Arabian Oil Company, Siemens Energy, Inc.
    Inventors: William G. Conner, Osama I. Fageeha, Thomas E. Schultz
  • Patent number: 8394267
    Abstract: According to one embodiment, in order to eliminate impurities, and the like, water to be treated is passed through each of reactor vessels, phosphorus contained in the water to be treated is removed by using an adsorbent, and thereafter the liquid held in each of the reactor vessels is discharged through each of first to third treated water discharge paths, thereby eliminating the impurities, and the like derived from the water to be treated. It is possible to eliminate the influence of the impurities in the water to be treated on the discharged desorption agent liquid containing phosphorus from the phosphorus adsorbent can be eliminated, and hence it is possible to obtain a phosphorus-containing liquid containing no substance other than the recovered phosphoric matter material.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: March 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinobu Moniwa, Hidetake Shiire, Satomi Ebihara, Masahiko Tsutsumi, Nobuyuki Ashikaga, Satoshi Haraguchi, Akiko Suzuki, Hideyuki Tsuji, Tatsuoki Kohno, Kazuhiko Noda, Katsuya Yamamoto
  • Patent number: 8333889
    Abstract: A filter system having a filter bed for filtering water or wastewater, where the filter bed is periodically washed between service runs by directing washing liquid and washing gas upwardly through the filter bed. The filter system includes a filter bed and at least one flume. The flume is in fluid communication with the filter bed. Preferably, the flume is configured such that no washing liquid and washing gas interface is present in the flume. The flume may be configured such that during washing of the filter bed between service runs the flume receives a washing gas and directs the washing gas upwardly through the filter bed to assist in cleaning the filter bed between service runs. The flume may further be configured such that during washing the only liquid directed from the flume to the filter bed is residual liquid that may be present in the flume from a prior service run.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: December 18, 2012
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison, Andrew Scott Taylor, Jason Samuel Schmoyer
  • Patent number: 8329031
    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: Grant
    Filed: January 27, 2010
    Date of Patent: December 11, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinobu Moniwa, Masahiko Tsutsumi, Hidetake Shiire, Nobuyuki Ashikaga, Satomi Ebihara, Katsuya Yamamoto
  • Publication number: 20120211430
    Abstract: The present invention relates to a porous media-mediated high speed filtration device for easy backwash, wherein the inflow water to be filtered is guided to an upper portion of the high speed filtration device and is filtered by downflow and porous media are backwashed for maintaining optimum filter efficiency by blocking the flow of inflow water and water to be treated after sensing the level of the inflow water or the change in the flux of the water to be treated, supplying backwash water and/or air by upflow through a backwash equipment to separate pollutants in the porous media by the collision and friction between the porous media by flowing of the porous media through the stream of the backwash water, placing the porous media in a stationary location, and discharging the pollutants through a discharge pipe of the high speed filtration device before the pollutants settle. In addition, the present invention comprises a backwash method of the high speed filtration device using porous media.
    Type: Application
    Filed: October 25, 2010
    Publication date: August 23, 2012
    Inventor: Jin Nak Choi
  • Patent number: 8246818
    Abstract: A syphon filtration system is a low head, small foot print, long operating cycle, gravity filtration system for treatment of water and wastewater, with one-stage or two-stage filtration in one vessel with different filtration media of sand, anthracite, granular activated carbon or other proprietary filtration media. The one-stage filtration system removes suspended solids or dissolved impurities and the two-stage filtration system removes suspended solids and dissolved impurities. In the two-stage filtration system, each filtration stage can be backwashed independently or both stages can be backwashed simultaneously. Novel syphon piping and controls design extend the filtration operating cycle and reduce the filter apparatus headroom, and the filter backwash water volume requirements.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: August 21, 2012
    Inventor: Jan A. Korzeniowski
  • Publication number: 20120199536
    Abstract: A water filtration system having a tank, a fluid flow interface into the interior of the tank, and a control valve. The control valve is in fluid communication with the fluid flow interface. The control valve includes a source water inlet for receiving a flow of source water, a drain outlet, a treated water outlet and an air inlet, the control valve being operable to control a passage of fluids between the inlets and the outlets and the fluid flow interface. A filtration media is contained within the tank which includes a media mixture of manganese dioxide coated silica core filtration media and iron hydroxide filtration media. The control valve may be programmed to perform a filtering service process, a backwashing process and an air downflow process.
    Type: Application
    Filed: June 24, 2011
    Publication date: August 9, 2012
    Inventors: Alan Howard Dennis, Robert Lloyd Dennis, Robert Martin Garner
  • Patent number: 8226834
    Abstract: A backwash distribution apparatus for a filter having a filter tank and a plurality of underdrain laterals includes a first and second separator device positioned in a common main conduit to define first and second auxiliary flumes. The first and second auxiliary flumes are in fluid communication with the common main conduit and the underdrain laterals. The first separator device has at least one flume liquid metering orifice preferably located near the bottom of the first separator device so that it may be below a gas liquid interface in the first auxiliary flume. The second separator device has either a weir edge or a plurality of metering orifices (or both) for passing backwash liquid from the common main conduit into the second auxiliary flume.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: July 24, 2012
    Assignee: Xylem Water Solutions Zelienople, LLC
    Inventor: John L. Geibel
  • Patent number: 8177970
    Abstract: A water filtration apparatus has at least one tank in fluid communication with a conduit through at least one aperture in a wall. Each tank uses filter blocks to support the filter medium and to direct the filtered water to the conduit via the aperture. An end plate for the filter block is provided, the end plate being adapted to seal against a free end of the filter block. The end plate also provides apertures for fluid flow into and out of the filter block, and a device for receiving a sealant to provide a seal between the end plate and the wall. The end plate improves the installation of the apparatus, and the sealant improves the reliability of the seal round the apertures, which in turn improves the efficiency of a backwash operation used to clean the filter medium.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: May 15, 2012
    Assignee: Severn Trent Services, Limited
    Inventors: Nigel Paul Thoresby Bradley, Mark Hadley, Neil Dodsley
  • Patent number: 8118999
    Abstract: An improved filter capable of operating in a backwash mode that creates an upward swirling flow in the hollow interior of the pool filter container. During the backwash cycle, water or air and water are injected into the pool filter container at an angle. In the preferred embodiment, a mixture of water and air are injected into the filter container through exit jets located within the hollow interior of the filter container proximate to the bottom of the filter container. This causes the filter media to swirl upward mixing thoroughly with the backwash water promoting the separation of the mineral deposits from the filter media.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: February 21, 2012
    Inventor: Jeffrey Swain
  • Publication number: 20120031857
    Abstract: Apparatuses and related methods for filtration of raw water including a filtration column having a filtrate zone and a filtration zone.
    Type: Application
    Filed: July 6, 2011
    Publication date: February 9, 2012
    Applicants: Kessler IIan Management and Development (2001), Ltd., Liquid Automation Ltd.
    Inventor: Haim Ben-Dosa
  • Patent number: 8110116
    Abstract: A water treatment apparatus includes a raw water supply tube, mixed raw water stream jet nozzles each communicating at one end thereof with the raw water supply tube and having at the other end thereof a raw water outlet from which mixed stream of raw water and air is jetted out, a filtering tank housing a filter layer disposed below the mixed raw water stream jet nozzles with a predetermined distance between the surface of the filter layer and the raw water outlet of the mixed raw water stream jet nozzles, a filtered water takeout tube provided in the filtering tank for taking out water filtered through the filter layer, a reverse stream cleaning water supply tube provided in the filtering tank for supplying reverse stream cleaning water to the filter layer, filter layer cleaning jet nozzles each communicating at one end thereof with a filter layer cleaning water supply tube and having at the other end thereof a cleaning water outlet from which cleaning water is jetted out, and an overflow outlet provided in
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: February 7, 2012
    Assignee: Nagaoka International Corporation
    Inventors: Hitoshi Mimura, Kiyokazu Mukai
  • Patent number: 8092693
    Abstract: 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 solids; and a fluid outlet in the upper portion through which filtered fluid can leave the tank. The filter comprises filter media supported on a permeable wall, the wall including a filter media outlet which is normally closed, and opening means for opening the filter media outlet to allow the filter media to discharge into the lower portion of the tank. The invention also relates to a method of refilling the filter with filter media.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 10, 2012
    Assignee: Cameron International Corporation
    Inventors: James Edward Delves, David John Parkinson, Simon Thomas Henry Brock
  • Patent number: 8012359
    Abstract: 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 the housing, the manifold (5) having flow outlets (6) which are directed laterally, away from the discharge outlet (8). The flow inlet may comprise a substantially vertically aligned elongate tubular manifold (5) with a plurality of flow distribution holes or slots disposed along its length. Furthermore, the discharge outlet (8) may be accessed through a chamber within the housing which contains a second filter media (11) which is of larger average particle size than the first filter media (9).
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 6, 2011
    Assignee: KCC Group Limited
    Inventor: David John Parkinson
  • Patent number: 8002993
    Abstract: A method and apparatus for filtering a fluid is presented. In one embodiment, the apparatus converts contaminated water into water having a lower turbidity and bacterial contamination level than the contaminated water. The apparatus includes a settling unit for at least partially settling a portion of the water; a filter unit having a filtration media; wherein the filtration media comprises sand, anthracite coal, burnt rice husks, diatomaceous earth, gravel, pumice gravel, or combinations thereof; a sanitation unit; wherein the sanitation unit is an ultraviolet disinfection unit; a backwash unit; wherein the settling unit is in fluid communications with the filter unit and the backwash unit, the backwash unit is in fluid communications with the filter unit, and the filter unit is in fluid communications with the sanitation unit; and wherein at least a portion of the settling unit is elevated above the filter unit.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: August 23, 2011
    Inventors: Maximilian Gold, Evan A. Thomas
  • Publication number: 20110174719
    Abstract: An underdrain filter block for use in draining and backwashing a filtering media in a filter bed includes a top wall, a pair of side walls extending from the top wall, and a bottom wall extending between the pair of side walls. The top wall, the pair of side walls, and the bottom wall define an upper portion and a lower portion. The lower portion includes a grout chamber having a plurality of openings defined by at least one of the bottom wall and the pair of side walls.
    Type: Application
    Filed: January 3, 2011
    Publication date: July 21, 2011
    Applicant: ITT WATER & WASTEWATER LEOPOLD, INC.
    Inventors: Dean T. Berkebile, Daniel E. Bruce, Christopher J. Ball
  • Patent number: 7972509
    Abstract: Exemplary systems and methods relating to washboxes are described.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: July 5, 2011
    Assignee: Blue Water Technologies, Inc.
    Inventors: Remembrance L. Newcombe, David G. Volkenand, Mark S. Lopp
  • Patent number: 7922903
    Abstract: A system and method for uniformly distributing fluids (e.g., washing and in-service) through a filter bed of a filter. The system and method of the present invention can be used with any type of filter that uses media to remove impurities from a fluid. The filter bed can include one or more layers of media. The media can be natural (e.g., sand, gravel, anthracite, etc.) or can be fabricated (e.g., plastic). The filter media can be supported by one or more layers of gravel. Alternatively, the filter media can be supported by a porous plate or other support designed to replace the gravel layers. The present invention includes a system having a distribution member configured to uniformly distribute a fluid through a filter bed of a filter. Preferably, the distribution member can be readily installed by relatively unskilled labor in both existing filters and new filters.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: April 12, 2011
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison
  • Patent number: 7897040
    Abstract: Exemplary systems and methods relating to washboxes are described.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: March 1, 2011
    Assignee: Blue Water Technologies, Inc.
    Inventors: Remembrance L. Newcombe, David G. Volkenand, Mark S. Lopp
  • Publication number: 20100300954
    Abstract: A filter system having a filter bed for filtering water or wastewater, where the filter bed is periodically washed between service runs by directing washing liquid and washing gas upwardly through the filter bed. The filter system includes a filter bed and at least one flume. The flume is in fluid communication with the filter bed. Preferably, the flume is configured such that no washing liquid and washing gas interface is present in the flume. The flume may be configured such that during washing of the filter bed between service runs the flume receives a washing gas and directs the washing gas upwardly through the filter bed to assist in cleaning the filter bed between service runs. The flume may further be configured such that during washing the only liquid directed from the flume to the filter bed is residual liquid that may be present in the flume from a prior service run.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Inventors: R. Lee Roberts, Mark Kevin Addison, Andrew Scott Taylor, Jason Samuel Schmoyer
  • Publication number: 20100300948
    Abstract: According to one embodiment, water to be treated is passed through each of a first reactor vessel and second reactor vessel, phosphorus contained in the water is removed by using an adsorbent, thereafter the liquid held in each of the reactor vessels is discharged from each of a first treated water discharge path and second treated water discharge path, and thus the influence of soluble impurities derived from the water is eliminated. Further, when suspended solids impurities contained in the water are accumulated in the phosphorus adsorbent, the accumulated impurities are eliminated by a reverse cleaning operation using a liquid to be thereafter introduced from a reactor vessel liquid introduction path into the reactor vessel, and hence the influence of the suspended solids in the water on a desorption agent liquid to be thereafter introduced into a crystallization vessel, and containing phosphorus from the phosphorus adsorbent is eliminated.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 2, 2010
    Inventors: Shinobu Moniwa, Hidetake Shiire, Satomi Ebihara, Masahiko Tsutsumi, Nobuyuki Ashikaga, Satoshi Haraguchi, Akiko Suzuki, Hideyuki Tsuji, Tatsuoki Kohno, Kazuhiko Noda, Katsuya Yamamoto
  • Publication number: 20100300949
    Abstract: According to one embodiment, in order to eliminate impurities, and the like, water to be treated is passed through each of reactor vessels, phosphorus contained in the water to be treated is removed by using an adsorbent, and thereafter the liquid held in each of the reactor vessels is discharged through each of first to third treated water discharge paths, thereby eliminating the impurities, and the like derived from the water to be treated. It is possible to eliminate the influence of the impurities in the water to be treated on the discharged desorption agent liquid containing phosphorus from the phosphorus adsorbent can be eliminated, and hence it is possible to obtain a phosphorus-containing liquid containing no substance other than the recovered phosphoric matter material.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 2, 2010
    Inventors: Shinobu Moniwa, Hidetake Shiire, Satomi Ebihara, Masahiko Tsutsumi, Nobuyuki Ashikaga, Satoshi Haraguchi, Akiko Suzuki, Hideyuki Tsuji, Tatsuoki Kohno, Kazuhiko Noda, Katsuya Yamamoto
  • Publication number: 20100237003
    Abstract: A ceramic water purifying device is provided. The device includes a silver treated packed particle bed in one embodiment. The device may also include feldspar or bottled glass.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Inventor: Anthony Reid Harvey
  • Patent number: 7758750
    Abstract: A flume for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas and/or a combination of liquid and gas. The flume includes a chamber having a top wall, a bottom wall, a left sidewall and a right sidewall. The chamber is adapted to receive a liquid, a gas and/or a combination of liquid and gas. Preferably, the flumes includes at least a first inner wall and a second inner wall. Each of the first inner wall and the second inner wall are preferably free of any orifices. The first inner wall is positioned relative to the second inner wall such that an open space is formed between the first inner wall and the second inner wall. The open space creates a first liquid/gas interface upstream of the first inner wall and the second inner wall and a second gas/liquid interface downstream of the first inner wall and the second inner wall when gas and liquid are present in the chamber.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: July 20, 2010
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison
  • Patent number: 7754089
    Abstract: A method and apparatus for monitoring an underdrain in a filter system for filtering water or wastewater. At least one diagnostic condition relating to the performance of the underdrain is monitored to determine if the underdrain is operating in an acceptable manner.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: July 13, 2010
    Assignee: RG Delaware, Inc.
    Inventor: R. Lee Roberts
  • Patent number: 7736506
    Abstract: A system and method for uniformly distributing fluids (e.g., washing and in-service) through a filter bed of a filter. The system and method of the present invention can be used with any type of filter that uses media to remove impurities from a fluid. The filter bed can include one or more layers of media. The media can be natural (e.g., sand, gravel, anthracite, etc.) or can be fabricated (e.g., plastic). The filter media can be supported by one or more layers of gravel. Alternatively, the filter media can be supported by a porous plate or other support designed to replace the gravel layers. The present invention includes a system having a distribution member configured to uniformly distribute a fluid through a filter bed of a filter. Preferably, the distribution member can be readily installed by relatively unskilled labor in both existing filters and new filters. The distribution member is preferably configured to occupy only a small percentage of space in a distribution chamber (e.g., a flume).
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: June 15, 2010
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison