By Diverse Fluid Patents (Class 210/797)
  • Publication number: 20150108072
    Abstract: The invention relates to a method for sealing a filter chamber of a filter device, comprising a sequence of steps, including moving the recess plate close to the adjacent recess plate for building the pack, and securing the recess plate to the adjacent recess plate, piping a suspension into the filter chamber on a cake side of a filter cloth, letting a solid content of the suspension settle on the filter cloth as a filter cake, and a liquid fraction of the suspension permeate the filter cloth to a filtrate side thereof, and discharging the filtrate out of the filter chamber. The invention further relates to a recess plate for use in a filter device, the recess plate comprising a recess, and a groove encircling the recess, the groove being adapted to receive a sealing ring for sealing a filter chamber.
    Type: Application
    Filed: April 19, 2012
    Publication date: April 23, 2015
    Applicant: OUTOTEC (FINLAND) OY
    Inventor: Bernd Böhnke
  • Publication number: 20150090674
    Abstract: A blood filter apparatus for separating plasma or serum from blood, a cartridge for analyzing blood including the blood filter apparatus, and a method of separating plasma or serum using the blood filter apparatus.
    Type: Application
    Filed: June 10, 2014
    Publication date: April 2, 2015
    Inventors: Tae-han LEE, Sang-hyun Baek, Hyo-young Jeong, Young-Ki Hahn, Soo-suk Lee, Youn-suk Choi
  • Patent number: 8951423
    Abstract: A method for removing a filter cake from a filtering device having a housing that defines a filtration flowpath through which a filtrate flows, the housing having at least one inlet and at least one outlet, the filter cake being deposited on at least one cylindrical filter element disposed within the filtering device, the at least one cylindrical filter element comprises at least one filter material and at least one rebound element, the at least one rebound element having a first flange extending from a head region and a second flange extending from a foot region, the at least one rebound element having a structured surface with at least two recesses mutually parallel in the longitudinal direction of the at least one rebound element, the at least two recesses are formed extending between the first flange and the second flange.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 10, 2015
    Assignee: ETS Trade S.A.R.L.
    Inventors: Harald Schmidt, Frank Jonigkeit
  • Publication number: 20140305886
    Abstract: An apparatus for filtering dry film solvent includes a hollow vessel having a side wall, an open top end and a second end that includes a main outlet that allows fluid to flow out of a hollow interior of the vessel. A removable cover closes off the open top end of the vessel. The apparatus also includes at least one fluid inlet port formed along the side wall of the vessel and defining an entrance into the hollow interior of the vessel and at least one fluid outlet port formed along the side wall of the vessel and defining an exit from the hollow interior of the vessel. A removable filter member is disposed within the hollow interior and is defined by a frame and filter media that extends across the frame such fluid flowing into the hollow interior through the main inlet must flow through the filter media to reach the main outlet. The filter media is disposed at an angle other than 90 degrees relative to the frame of the filter member.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 16, 2014
    Applicant: Solid State Equipment LLC
    Inventors: John Taddei, Laura Mauer, John Clark, Lev Rapoport
  • Patent number: 8857279
    Abstract: Methods of concentrating an analyte that is in liquid and method of detecting an analyte in a liquid are disclosed. Methods of screening a liquid for the presence of an analyte are also disclosed. Processes comprising continuously collecting a sample of fluid throughout the process and analyzing the sample are disclosed as are processes comprising treating ultrafilter membranes. Devices and systems for concentrating an analyte that is in liquid and for screening a liquid for an analyte are disclosed as well as devices and systems for concentrating an analyte from a continuous sample are disclosed.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: October 14, 2014
    Inventors: William P. Hanson, Maureen A. Dyer, Robert E. Hetrick, Jennifer A. Oberholtzer
  • Publication number: 20140291259
    Abstract: A separation method (10) comprising the following method steps: (i) Passing an organic waste material to a primary washing step (16) in which a clean organic stream (18) and a fraction with a specific gravity of greater than 1 (20) are produced; (ii) Passing the clean organic stream (18) from step (i) to a drainage step (22) to remove free water therefrom; and (iii) Passing the organic material product (24) of step (ii) to a dewatering step (26) in which the water content of the organic material is reduced to a level suitable for passing to a bioconversion process. An apparatus is also described.
    Type: Application
    Filed: September 6, 2012
    Publication date: October 2, 2014
    Applicant: ANAECO LIMITED
    Inventors: Martin Richard Gravett, Paul Austin Wootton, Timothy James Elkington
  • Patent number: 8840783
    Abstract: A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or a set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: September 23, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Fufang Zha, Gerin James, Joseph Edward Zuback, Peter Zauner, Roger William Phelps
  • Publication number: 20140263085
    Abstract: A continuously-operable flow stream processing system and method has two or more fluid processing media arranged in a fluid conduit network to provide alternate flow paths for a flow stream to be processed (e.g. filtered). Valves and other flow control devices, e.g. controller module and sensors, are used to redirect the flow stream from one or more service-needed fluid processing media to service-ready fluid processing media without taking the system offline to remove, repair, replace, clean in situ, or otherwise service the service-needed fluid processing media, so that the system may operate continuously to process the flow stream without stoppage. Redirection into alternative flow paths and media may be automatically implemented based on a predetermined threshold or trigger condition, such as may be detected by sensors directly or indirectly monitoring media condition.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Mark A. Mitchell, Brian Anderson
  • Publication number: 20140246389
    Abstract: A filter arrangement with a top element and a bottom element and a filter element therebetween captures oversized particles on the upper surface of the filter element and tangentially rinses these particles using an elution fluid to provide a concentration of particles in a relatively low volume of fluid for further analysis. In an intermediate step, the particles captured by the filter may be rinsed with a rinsing fluid such as water to pass additional undersized particles through the filter, thereby providing a purer sample. To improve efficiency, check valves may be used for passageways with one-way flow. Additionally, a configuration of three-way stopcocks may also be utilized. Finally, a sandwich arrangement is possible, wherein a single bottom element is sandwiched between two opposing top elements.
    Type: Application
    Filed: February 4, 2014
    Publication date: September 4, 2014
    Applicant: POCARED Diagnostics LTD.
    Inventor: Gal Ingber
  • Publication number: 20140231256
    Abstract: The present disclosure provides for devices, systems and methods for fractionation and concentration of particles from a fluid sample. This includes a cartridge containing staged filters having porous surface in series of decreasing pore size for capture of particles from a fluid sample; and a permeate pressure source in fluid communication with the cartridge; wherein the particles are eluted from the porous surfaces and dispensed in a reduced fluid volume.
    Type: Application
    Filed: October 18, 2013
    Publication date: August 21, 2014
    Applicant: INNOVAPREP LLC
    Inventors: Zachary Allen Packingham, Andrew Edward Page, David Scott Alburty, Steven Dale Graham, Alec Douglas Adolphson
  • Patent number: 8795403
    Abstract: The present invention provides a filter cloth for a dust collector which shows low pressure loss, no clogging, superior dust shaking-off performance, and durability for continuous use without impairing collection performance, even under such dust collection conditions as high speed filtration and high dust concentration. The filter cloth for a dust collector relevant to the present invention is a filter cloth which is made by laminating and integrating a filtration layer of a nonwoven fabric layer consisting of a thermoplastic fiber and a support layer consisting of a woven fabric layer, characterized in that at least filtration surface layer of said laminated and integrated filter cloth has a concave-convex shape having a height from hill part to trough part of 1.6 to 20.0 mm.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 5, 2014
    Assignees: Asahi Kasei Fibers Corporation, Asamasu Co., Ltd.
    Inventors: Yukimasa Kuroda, Yutaka Sasaki, Yoshihiro Takagi, Isao Kimura
  • Patent number: 8778193
    Abstract: The invention provides a method for the separation of liquid from a three phase slurry bubble column. The method includes the step of charging the inside of a hollow filter element with a rinsing fluid to clean the inside of the filter for catalyst fines followed by a backflushing step. The invention also provides an installation for the separation of liquid from a three phase slurry bubble column. The installation includes at feast one hollow and enclosed filter element and one or more conduits in fluid communication with the internal volume of the filter, with at least one conduit being configured or connected for inflow of rinsing fluid and at least one conduit being configured or connection for outflow of rinsing fluid.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: July 15, 2014
    Assignees: Petroleum Oil and Gas Corporation of South Africa, Ltd., Statoil Hydro ASA
    Inventors: Ockert Rudolph Minnie, Patrick Otto Taylor, Pål Søraker, Marcus Fathi
  • Patent number: 8777018
    Abstract: The present invention relates to a filtering device, facilitating the filtration of media to be cleaned, and also the cleaning of the filter material or filter elements in a filtering device. Said filtering device comprises at least one filter element arranged in a housing, with at least one filter material and at least one rebound element. The invention further relates to a cleaning device, comprising at least one nozzle, which is arranged perpendicularly and/or angularly in relation to the filter element for removing a filter cake on the filter material, wherein the cleaning medium at least partially penetrates the filter material during cleaning. The rebound element deflects the cleaning medium at least partially for renewed penetration through the filter material, while at least partially removing the filter cake at the same time.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: July 15, 2014
    Assignee: ETS Trade S.a.r.l.
    Inventors: Harald Schmidt, Frank Jonigkeit
  • Publication number: 20140175029
    Abstract: A method and an apparatus for separating suspended matter from liquid includes a concentrator filter that draws the liquid out of the suspension while the filter kept unblocked by a sparging filter that allows scrubbing of the concentrator filter by gas bubbles. This invention can be used to replace cross-flow filtration and centrifugation in the bioprocess industry and to reduce the volume of suspensions to concentrate the yield of the end product in the chemical industry.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicant: Therapeutic Proteins International, LLC
    Inventor: Sarfaraz K. Niazi
  • Patent number: 8734655
    Abstract: [PROBLEM] There is provided a method for regenerating a filter, by which deterioration of the color tone of purified acrylic acid can be prevented. [SOLUTION] There is provided a method for regenerating a filter which has been used in a filtration step in the process for producing an acrylic acid, comprising a step (A) wherein the filter is washed with an aqueous alkaline solution, a step (B) wherein the filter is washed with water after the step (A) , and a step (C) wherein the filter is brought into contact with the acrylic acid for regeneration for at least one hour after the step (B).
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: May 27, 2014
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Ueno, Kunihiko Suzuki, Atsushi Sugano
  • Publication number: 20140138323
    Abstract: A system and method include a shaker configured to separate solids from a drilling fluid, the shaker having a screen assembly, and an actuated arm operatively coupled to the shaker, the actuated arm configured to interact with the screen assembly of the shaker. The actuated arm is configured to interact with the screen assembly of the shaker, with the actuated arm configured to remove, to inspect, to clean, to repair, or to replace the screen assembly of the shaker.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Inventors: Bradley N. Jones, Thomas Geehan
  • Publication number: 20140131293
    Abstract: Systems and methods condition a filter assembly. Purging liquid is passed through the filter assembly to remove contaminants from the pores and voids of the filter medium and from the upstream and downstream sides of the filter medium.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 15, 2014
    Applicant: PALL CORPORATION
    Inventors: Michael Joseph Mesawich, Joseph Bica, Michael Stuart Sevegney, Glenn Dado, Barry Gotlinsky, Richard E. Novak
  • Publication number: 20140131294
    Abstract: Methods and apparatus for filtering particulate matter from a liquid are provided. The apparatus comprise: a housing defining an internal volume; a liquid inlet port; a liquid outlet port disposed above the liquid inlet port; a filter medium support membrane housed within the housing and disposed between the liquid inlet port and the liquid outlet port; and a particulate filter medium loaded onto the filter medium support membrane. The apparatus are designed such that a flow of liquid introduced into the internal volume of the housing through the liquid inlet port and exiting the internal volume of the housing through the liquid outlet port will pass upward through the filter medium support membrane.
    Type: Application
    Filed: February 22, 2012
    Publication date: May 15, 2014
    Inventor: Steven C. Suchanek
  • Publication number: 20140124460
    Abstract: The present invention relates to a method of filtering a feed and waste water treatment system using the filtration method. The method utilizes a filtration cake for the filtration, which filtration cake is formed by elements contained in a liquid having a different composition than the feed to the filtered. The invention relates in particular to a method for filtering a liquid containing solid particles of different sizes which utilizes a filtration cake formed at least partly and preferably only from particles contained in said liquid containing solid particles of different sizes. The particles of the filtration cake are deposited on a filtration cake support and the method involves separation of the liquid containing solid particles of different sizes into two fractions: one fraction containing solid particles above a certain size and one containing smaller particles, and filtering the fraction containing smaller particles through the filtration cake.
    Type: Application
    Filed: March 27, 2012
    Publication date: May 8, 2014
    Applicant: GRUNDFOS HOLDING A/S
    Inventors: Dominik Marek Dominiak, Tom Bjerregaard Jæger
  • Publication number: 20130317178
    Abstract: A polymer includes at least one pendant dioxirane moiety represented by Formula III or IV: In Formulas III and IV, R1 is absent or is alkylene, perhaloalkylene, cycloalkylene, arylene, heteroarylene, heterocyclylene, amino, carbonyl, carboxyl, alkylcarboxy, carboxyalkyl or alkylcarboxyalkyl; R2 is an electron withdrawing group; R8 is —N+R4R5 or alkylene; R9 is —N+R4R5 or alkylene; each R4 is independently H, alkyl, or cycloalkyl; and each R5 is independently H, alkyl, or cycloalkyl.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: Empire Technology Development LLC
    Inventors: Angele Sjong, Kraig K. Anderson
  • Publication number: 20130313207
    Abstract: A method for removing a filter cake from a filtering device having a housing that defines a filtration flowpath through which a filtrate flows, the housing having at least one inlet and at least one outlet, the filter cake being deposited on at least one cylindrical filter element disposed within the filtering device, the at least one cylindrical filter element comprises at least one filter material and at least one rebound element, the at least one rebound element having a first flange extending from a head region and a second flange extending from a foot region, the at least one rebound element having a structured surface with at least two recesses mutually parallel in the longitudinal direction of the at least one rebound element, the at least two recesses are formed extending between the first flange and the second flange.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Applicant: ETS Trade S.a.r.l.
    Inventors: Harald Schmidt, Frank Jonigkeit
  • Patent number: 8580115
    Abstract: A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 12, 2013
    Assignee: Microdyn-Nadir GmbH
    Inventors: Stefan Krause, Reinhard Voigt, Peter Cornel
  • Patent number: 8540079
    Abstract: A sludge filtration apparatus has a sludge tank configured to store sludge and at least one filter assembly. The filter assembly includes a filtration membrane for filtering the sludge and a pipe insertable in the filtration membrane to supply air to a secondary side of the filtration membrane for dislodging the sludge from the filtration membrane. The pipe has a plurality of holes for discharging gas, namely air, to an area in which the filtration membrane inclines downwardly with the secondary side thereof. The sludge filtration apparatus can prevent thickened sludge from remaining in an upper portion of the filter assembly.
    Type: Grant
    Filed: October 21, 2007
    Date of Patent: September 24, 2013
    Assignee: Metawater Co., Ltd.
    Inventors: Koji Yoshida, Mikimasa Yamaguchi
  • Publication number: 20130213893
    Abstract: A system adapted to condition an initial water feed stream into a treated water stream and to discharge the treated water stream. The initial water feed stream includes at least one of: a plurality of particles; an oil; a volatile organic compound; a hydrogen sulfide; a non-volatile compound; a heavy metal; and, a dissolved ion. The system includes a particle and oil removal subsystem adapted to treat the initial water feed stream to remove the plurality of particles and the oil to form a first partial treated water stream, a chemical oxygen demand reduction subsystem adapted to treat the first partial treated water stream to remove the volatile organic compound, the hydrogen sulfide and/or the non-volatile organic compound to form a second partial treated water stream, and a heavy metal and dissolved ion removal subsystem adapted to treat the second partial treated water stream to remove the heavy metal and the dissolved ion to form a treated water stream.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 22, 2013
    Inventor: Richard Paul Posa
  • Publication number: 20130206698
    Abstract: Fluid distribution filters having spiral filter media and associated systems and methods are disclosed herein. In one embodiment, for example, a filter assembly can include a canister having a body portion positioned between a first opening and a second opening. The filter assembly can further include a filter media positioned in the body portion of the canister. The filter media can include at least one channel in fluid communication with the first and second openings. The channel can have a spiral-like shape and be configured to distribute incoming fluid across the filter media and move the fluid at a substantially equal velocity across the filter media.
    Type: Application
    Filed: August 13, 2012
    Publication date: August 15, 2013
    Applicant: McAlister Technologies, LLC.
    Inventor: Roy Edward McAlister
  • Publication number: 20130206706
    Abstract: A screen intake apparatus for a water intake system uses a cleaning system to clean one or more screen intakes. To clean debris from a screen, pipes in the interior of the screen receive pumped liquid (e.g., water or incompressible liquid) from a pump. Outlets, such as apertures or nozzles, on the pipes then direct the pumped liquid into the interior of the screen. One or more valves can vary, agitate, or pulse the flow of pumped fluid and/or can selectively deliver the pumped liquid to the pipes to remove collected debris from the exterior of the screen. A heater of the system can also heat the pumped liquid for delivery to the pipes to remove or prevent ice formation on the screen.
    Type: Application
    Filed: January 31, 2013
    Publication date: August 15, 2013
    Applicant: JOHNSON SCREENS, INC.
    Inventor: JOHNSON SCREENS, INC.
  • Publication number: 20130168332
    Abstract: A filter apparatus for removing contaminants from a fluid and having an internal chamber with an adjustable volume is provided. Filter media priming to dislodge trapped gas is facilitated by the filter apparatus. A method of priming a filter cartridge containing a filter media is also provided.
    Type: Application
    Filed: December 30, 2012
    Publication date: July 4, 2013
    Applicant: DELCATH SYSTEMS, INC.
    Inventor: Delcath Systems, Inc.
  • Patent number: 8444862
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: May 21, 2013
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Publication number: 20130092638
    Abstract: A compound includes a polymer where the polymer includes a pendant dioxirane moiety. Cost-effective, facilitated generation of a polymer including a pendant dioxirane moiety allows for the compound to be disposable or be easily recycled. The compound can be used in air purification and liquid purification to not only remove particulate matter, but also to destroy microorganisms and remove volatile organic compounds.
    Type: Application
    Filed: September 13, 2012
    Publication date: April 18, 2013
    Inventors: Angele SJONG, Kraig Anderson
  • Publication number: 20130087502
    Abstract: Methods and systems for enhanced water treatment comprise inorganic filter systems for impurity removal. Embodiments for water impurity removal include introducing contaminated water into an impurity removal system having an inorganic filter. The inorganic filter comprises an inorganic membrane layer supported by an inorganic support. The inorganic membrane layer comprises pores sized from about 1,000 Daltons to about 10 microns for filtering impurities such as kinetic hydrate inhibitor. Other pre-treatment and post-treatment stages may be included. The inorganic membrane layer or inorganic membrane support may comprise a ceramic such as alumina, zirconia, silica, silicon carbide, and mixed oxides.
    Type: Application
    Filed: October 3, 2012
    Publication date: April 11, 2013
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: David J. BLUMER, Ying XU, Bruce B. RANDOLPH, John A. CRUZE
  • Publication number: 20130086981
    Abstract: The invention provides an apparatus for discontinuous filtration of a liquid, having a filter station for filtration, a feed line for supplying the liquid to the filter station, and a filter medium movable relative to the station, the filter medium comprising at least two different membranes, which together in the filter station effect multistage filtration. The invention additionally relates to a method for discontinuous filtration of a liquid or for filtering isolated quantities of liquid, comprising: providing a filter station for filtration, the filter station comprising a chamber in which filtration is carried out; moving or transporting a filter medium from a stock into the filter station, the filter medium comprising at least two membranes which are arranged next to one another in the chamber; and supplying the liquid to the chamber, such that the liquid is subjected to multistage filtration through the membranes.
    Type: Application
    Filed: September 12, 2012
    Publication date: April 11, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Stefan Steigmiller, Karsten Sommer, Christoph Knappe
  • Publication number: 20130082011
    Abstract: The invention relates to a device (10) for separating a heterogeneous mixture of matter into at least one retentate and one filtrate, comprising a housing (12) which is subdivided into a chamber for the heterogeneous mixture (20) of matter having at least one feed (14) and a filtrate chamber (21) having at least one outlet (16), a filter unit (22) which comprises at least one filter element (24), wherein the filter unit (22) is arranged in the chamber for the heterogeneous mixture (20) of matter, and a rinsing system (46, 47, 50, 50?) for cleaning the filter unit (22), wherein the rinsing system (46, 47, 50, 50?) has at least one rinsing port (46, 47) which is constructed so as to introduce a stream, oriented tangentially to the shell surface (54), of a first washing medium into the chamber for the heterogeneous mixture (20) of matter. The invention further relates to a method for cleaning a filter unit.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 4, 2013
    Inventors: Stefan WITTMER, Juergen Linder, Gerhard Welker, Marcus Wagner
  • Patent number: 8394256
    Abstract: The present invention is a process for removing waxy haze from and improving the filterability of base stocks including heavy mineral oil base stocks, gas-to-liquids (GTL) and hydrodewaxed or hydroisomerized waxy feed basestocks by filtering the waxy haze causing particles out of the base stock employing a filter characterized by a high surface area of pores accessible to the haze wax particles which have particles dimensions of no more than about 5 microns.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 12, 2013
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: James W. Gleeson, Eric B. Sirota, Charles L. Baker, Dennis A. Gaal, David Mentzer, John E. Gallagher, Jr., Min Chang, Norman G. Cathcart, Stephen A. Geibel, Mark F. Hurwitz, Tore H. Lindstrom, Michael B. Whitlock
  • Patent number: 8394279
    Abstract: Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 12, 2013
    Assignee: BASF SE
    Inventors: Helmut Meffert, Marianna Pierobon, Tobias Petsch, Julia Brodersen, Hermann Josef Feise, Ates Erk, Jörg Kreβ, Ralf Mar, Ralf Lachmuth, Robert Bayer
  • Patent number: 8361313
    Abstract: Plant for treating the leftover liquids of mechanical processing, comprising a filtering partition (9) for filtration of the fluid and means for cleaning the partition by washing of the layer of mud deposited hereon, comprises vibratory means suitable for causing a generally fast and continuous vibratory state at least in the active portion of the partition. The plant comprises at least one chamber (6) that is divided into two parts by the filtering partition (9), one part being intended for the exit of the filtered fluid, means suitable for causing a generally fast and continuous vibratory state at least in the active portion of the partition are associated with said chamber. Method for treating the leftover fluids of mechanical processing, comprising filtration of the fluid through a filtering partition and periodic cleaning of the partition through washing of the layer of mud deposited here; it foresees that at least the surface of the partition on which the mud deposits is subjected to vibratory motion.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: January 29, 2013
    Assignee: P.M.P.O. S.R.L.
    Inventors: Fabio Pancaldi, Vanni Gallocchio
  • Patent number: 8323499
    Abstract: Biologically treated wastewater is directed as mixed liquor from a treatment tank to a downstream filtration tank having a having a submerged membrane module extending across the cross-sectional area of the filtration tank. Mixed liquor is directed from the bottom of the filtration tank upwardly into the membrane module such that substantially all of the mixed liquor received in the bottom of the filtration tank flows through the membrane module. A permeate stream is produced. A portion of a non-permeate stream is recirculated to the treatment tank. The filtration tank is sized such that there is no substantial recycle of mixed liquor in the filtration tank. Once the mixed liquor in the filtration tank makes one pass through the membrane module the mixed liquor is recycled to the treatment tank and generally not permitted to be recycled through the membrane module without first returning to the treatment tank.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: December 4, 2012
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Hong W. Zhao, Martin Brockmann, Heribert Moeslang, Pierre Girodet
  • Patent number: 8287743
    Abstract: A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: October 16, 2012
    Assignee: Siemens Industry, Inc.
    Inventors: Fufang Zha, Gerin James, Edward Joseph Zuback, Peter Zauner, Roger Phelps
  • Patent number: 8262911
    Abstract: A method for treatment of sludge with a facultative-organism-adapted membrane bioreactor by providing a sludge treatment system comprising a facultative digestion tank, a membrane module, an aeration system, a sludge pump, and a drainage pump, pumping sludge into the facultative digestion tank via the sludge pump and allowing for digestion, synchronously aerating and scouring the membrane module by the aeration system, pumping the sludge by the drainage pump and filtrating by the membrane module so that sludge and water are separated, and draining the water via the drainage pump. The method can digest sludge completely in the digestion tank, and solves problems existing in conventional sludge treatment methods such as large investment and high transportation cost, even achieves a subject of zero discharge of sludge.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: September 11, 2012
    Assignee: Jiangxi JDL Environmental Protection Research Ltd.
    Inventors: Zhimin Liao, Jianzhong Xiong, Shengyun Yang, Jialin Zhou, Xingfu Jiang, Lingyun He, Qihu He, Dejin Ju, Aiguo Wan, Zhihua Yuan, Jiejun Cao, Kun Tao
  • Patent number: 8236183
    Abstract: Methods and systems for filtration are disclosed. A feed mixture including at least one liquid component and at least one solid component and a flow of gas may be directed to a filter element and filtrate and gas may be passed through a filter medium from a feed fluid side to a filtrate side. The gas loosens and removes foulants accumulating within and on the upstream surface of the filter medium. The gas and filtrate may be separated from one another after passing through the filter medium.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: August 7, 2012
    Assignee: Pall Corporation
    Inventors: Toru Umeda, Steven C. Chisolm
  • Patent number: 8206598
    Abstract: An adapter for the purging of lines is described that comprises a plate and an attachment mechanism. The plate includes a first side and an opposed second side that are connected by at least one edge. The plate has a first interface defined on the second side that is adapted to connect to a portion of a cap of a filter assembly in a close fitting relation. The first interface is also adapted to define an interior space between the portion of the cap and the plate. The interior space is in fluid communication with a first line that is connected to the filter assembly. The attachment mechanism secures the plate and the portion of the cap in the close fitting relation. The plate includes a second interface that is adapted to connect to an external source of pressure. The second interface is in fluid communication with the interior space.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: June 26, 2012
    Inventor: Gregory Wulffen
  • Publication number: 20120152863
    Abstract: A liquid extraction filter, more particularly a continuous-action, top-feed, vacuum drum filter includes a drum structure and filter elements, the filtration surface of which filter elements is formed of microporous hydrophilic material such that when filtering with a partial vacuum it is impervious to the surrounding air.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Inventors: Bjarne EKBERG, Olli Högnabba, Jason Palmer
  • Patent number: 8192625
    Abstract: A jet aeration apparatus for aerating a membrane bioreactor has a jet aerator and an air supply pipe. The jet aerator is disposed in the membrane bioreactor and includes a water inlet, a pump disposed below a liquid surface of the membrane bioreactor, an air inlet pipe whose air inlet is disposed above the liquid surface of the membrane bioreactor, and a jet pipe having a jet nozzle. The air supply pipe includes a connector; and the connector of the air supply pipe is connected to the jet nozzle of the jet pipe of the jet aerator. A method of using the jet aeration apparatus is also provided. The jet aeration apparatus is easy to install, quiet in operation, and features a high degree of integration.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: June 5, 2012
    Assignee: Jiangxi JDL Environmental Protection Research Ltd.
    Inventors: Zhimin Liao, Jianzhong Xiong, Shengyun Yang, Jialin Zhou, Xingfu Jiang, Lingyun He, Qihu He, Dejin Ju, Aiguo Wan, Zhihua Yuan, Jiejun Cao, Kun Tao
  • Publication number: 20120111805
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Application
    Filed: January 17, 2012
    Publication date: May 10, 2012
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventor: Ake Ralvert
  • Publication number: 20120061333
    Abstract: A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or a set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.
    Type: Application
    Filed: November 17, 2011
    Publication date: March 15, 2012
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Fufang Zha, Gerin James, Joseph Edward Zuback, Peter Zauner, Roger William Phelps
  • Patent number: 8133397
    Abstract: A method and apparatus for filtering a slurry utilizing a displacement filtering principle. The filter apparatus desirably includes an inner filter and an outer filter. Both the inner and outer filters are preferably substantially annular in shape and positioned concentrically with respect to each other. A particulate collection volume is at least partially defined between the inner and outer filter. The method includes directing a flow of slurry into the particulate collection volume under sufficient pressure to force fluid within the particulate collection volume through one of the inner and outer filters and any particulate matter blocking a filtering surface of the inner and outer filters.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: March 13, 2012
    Inventor: Sean R. Duby
  • Publication number: 20120048814
    Abstract: The invention relates to a method for cleaning filter structures of filtration installations for filtering liquid products containing a gas or gas mixture that is neutral to the product, in particular for filtering drinks containing the gas or gas mixture that is neutral to the product.
    Type: Application
    Filed: July 7, 2010
    Publication date: March 1, 2012
    Applicant: KHS GmbH
    Inventor: Ulrich Sander
  • Patent number: 8101090
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 24, 2012
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Publication number: 20110297625
    Abstract: A filter configured to separate the solid components and the liquid components from a slurry. The filter includes a plurality of filter plate assemblies that cooperate to define a plurality of filter chambers, each defining a perimeter having an open section when the filter plates are in a closed position relative to one another. Each filter plate assembly includes a closure configured to close the open section. Preferably, the closures are movable to an open position to permit a particulate cake to be removed from the filter chambers without separating the filter plates.
    Type: Application
    Filed: August 15, 2011
    Publication date: December 8, 2011
    Inventor: Sean R. Duby
  • Patent number: 8070948
    Abstract: A description is given of a sewage treatment plant, in particular a small sewage treatment plant, having at least one activation tank for wastewater and/or having at least one secondary clarification tank for wastewater, wherein the activation tank and/or the secondary clarification tank are charged with shaped bodies which are freely floating in the wastewater, which is distinguished in that it has at least one filtration appliance for wastewater purification, which filtration appliance comprises at least one ceramic-based membrane for separating off microorganisms.
    Type: Grant
    Filed: February 17, 2007
    Date of Patent: December 6, 2011
    Assignee: ItN Nanovation AG
    Inventors: Gerhard Braun, Kay Gunther Gabriel
  • Publication number: 20110278230
    Abstract: The present invention provides a process to clean water filtration media in a filtration bed. The process includes applying a granular cleaner to the water filtration media and applying an activator to the water filtration media. This causes a chemical reaction between the granular cleaner, activator and water filtration media resulting in the cleaning of the water filtration media. The residual granular cleaner and activator, along with suspended and dissolved contamination from the water filtration media, are removed by rinsing with water.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 17, 2011
    Applicant: Blue Earth Labs, LLC
    Inventors: Ulrich Reimann-Philipp, Friedrich Wolfgang Zwanziger, Jeffrey Schulhoff