And Gas Injecting Means Other Than By Mechanical Agitation Patents (Class 210/221.2)
  • Patent number: 10385496
    Abstract: A washing machine capable of generating bubbles from a water/air mixture and supplying bubbles to the tub to facilitate removal of residual detergent or the like from laundry during washing or rinsing operations. The washing machine has a dissolving unit with an air supply check valve and can receive air from outside of the dissolving unit in accordance with a pressure in the dissolving unit. Air contained in the dissolving unit can be dissolved in water contained therein to produce water/air mixture. A bubble generating unit receives the water/air mixture from the dissolving unit and generates bubbles as the mixture passes along a water flow path and a pressure reduction region in the bubble generating unit.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 20, 2019
    Inventor: Ui Kun Hwang
  • Patent number: 10188983
    Abstract: A system for use in selective catalytic reduction reactor is disclosed. The system may include a catalyst bed and a screen located close to the catalyst bed in a manner so that flow of flue gas to the catalyst bed contacts the screen before it contacts the catalyst bed. The screen may be adapted to support a weight of at least 400 pounds above the catalyst bed so that the weight is not imposed on the catalyst. The screen may have a plurality of holes across its surface in a manner so that the screen is adapted to change the velocity distribution of the flue gas as it flows through the screen.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 29, 2019
    Assignee: Integrated Global Services, Inc.
    Inventors: Jeff Landers Shelton, Andrew Scott Kline
  • Patent number: 10071928
    Abstract: Systems and methods for treatment of produced water form a steam assisted gravity drain operation are presented in which tight emulsions, total organic compounds, and solids are removed using a skim tanks that receives a multiphase mixture formed from a demulsifier and the produced water and that produces pre-treated water. The so formed pre-treated water is then subject to further total organic compounds reduction via combination with one or more oxidizing biocide to so form treated water that can be fed to a once through steam generator (OTSG) for re-injection into a formation.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: September 11, 2018
    Assignee: Fluor Technologies Corporation
    Inventor: Rafique Janjua
  • Patent number: 10005686
    Abstract: The present disclosure relates, according to some embodiments, to systems and methods of fluid treatment systems. Fluid treatment systems and methods thereof may be operable to remove contaminants and optionally reduce hardness. A fluid treatment system may comprise a feed stream configured to provide a contaminated fluid, a concentrate tank configured to receive the contaminated fluid from the feed stream, a filtration unit configured to receive the contaminated fluid from the concentrate tank, and a permeate stream operable to receive a treated fluid from the filtration unit. A concentrate tank may be operable to reduce hardness of the contaminated fluid. A filtration unit may be operable to filter contaminants from the contaminated fluid.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: June 26, 2018
    Assignee: 1934612 Ontario Inc.
    Inventors: Anthony L. Powell, Brian E. Butters
  • Patent number: 9784023
    Abstract: A door brace to prevent the opening of a door into a room or other area by an intruder includes an elongated tube that is terminated at each end by a door mounting flange and a floor mounting flange. The door mounting flange is configured to be slideably received within a bracket that is mounted to the door. The floor mounting flange includes an aperture for receiving a pin therethrough that is also received within an aperture that has been bored into the surface of the floor. Thus, when the door brace is mounted between the door and floor, the strength of the door is increased, thus preventing the door from being opened by the use of a large entry force applied to the door by an intruder seeking entry into the room or area.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 10, 2017
    Inventor: Ayman Osama Al Kayali
  • Patent number: 9744476
    Abstract: The present invention provides an annular centrifugal contactor, having a housing to receive a plurality of liquids; a rotor inside the housing; an annular mixing zone, with a plurality of fluid retention reservoirs; and an adjustable stem that can be raised to restrict the flow of a liquid into the rotor or lowered to increase the flow of liquid into the rotor. The invention also provides a method for transferring moieties from a first liquid to a second liquid, the method having the steps of combining the fluids in a housing whose interior has helically shaped first channels; subjecting the fluids to a spinning rotor to produce a mixture, whereby the channels simultaneously conduct the mixture downwardly and upwardly; and passing the mixture through the rotor to contact second channels, whereby the channels pump the second liquid through a first aperture while the first fluid exits a second aperture.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 29, 2017
    Inventor: Kent E. Wardle
  • Patent number: 9669329
    Abstract: The present invention provides an annular centrifugal contactor, having a housing adapted to receive a plurality of flowing liquids; a rotor on the interior of the housing; an annular mixing zone, wherein the annular mixing zone has a plurality of fluid retention reservoirs with ingress apertures near the bottom of the annular mixing zone and egress apertures located above the ingress apertures of the annular mixing zone; and an adjustable vane plate stem, wherein the stem can be raised to restrict the flow of a liquid into the rotor or lowered to increase the flow of the liquid into the rotor.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 6, 2017
    Inventor: Kent E. Wardle
  • Patent number: 9606429
    Abstract: An immersion lithographic apparatus is described in which a two-phase flow is separated into liquid-rich and gas-rich flows by causing the liquid-rich flow to preferentially flow along a surface.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 28, 2017
    Inventors: Nicolaas Rudolf Kemper, Nicolaas Ten Kate, Joost Jeroen Ottens, Marcel Beckers, Marco Polizzi, Michel Riepen, Anthonie Kuijper, Koen Steffens, Adrianes Johannes Baeten, Anca Mihaela Antonevici
  • Patent number: 9399200
    Abstract: A foaming mechanism configured to receive a plurality of streams of gas and generate a foamed liquid, having an aerodynamic component and an aerodynamic housing disposed around at least a portion of the aerodynamic component. The aerodynamic housing includes a plurality of first channels and a plurality of second channels connected to the plurality of first channels at regular intervals on a distributed plane. The distributed plane is about perpendicular to the plurality of first channels, wherein the plurality of first channels and the plurality of second channels are configured to transform an axial stream of the gaseous working agent into a plurality of radial high-speed streams of the gaseous working agent by channeling the gaseous working agent through the plurality of first channels and into the plurality of second channels on the distributed plane.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 26, 2016
    Inventors: David Livshits, Lester Teichner
  • Patent number: 9376331
    Abstract: A system and process for treating water wherein water to be treated is directed to an inlet zone and from the inlet zone to a mixing zone. A flotation zone receives water from the mixing zone. A clarified water collection area is disposed adjacent the flotation zone for receiving clarified water from the flotation zone. There is provided one or more spray nozzles disposed in the mixing zone for injecting pressurized water into the mixing zone and generating air bubbles in the mixing zone such that the air bubbles are mixed with the water to be treated. A perforated plate separates the inlet zone and the mixing zone and includes an array of openings through which water to be treated passes as the water to be treated moves from the inlet zone to the mixing zone. The openings in the perforated plate give rise to a homogeneous mixture of the water to be treated and the air bubbles that result from the pressurized water being injected into the mixing zone by the one or more spray nozzles.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: June 28, 2016
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Laurence Dumoulin, Delia Pastorelli, Michel Badard
  • Patent number: 9346695
    Abstract: The present inventions relates to an apparatus for purifying wastewater and a method thereof, which comprises: a stirring part to make bubbles impregnated into floc through high speed stirring by adding floc forming materials to influent and stirring them; an air supply part to supply air to the stirring part to make more bubbles impregnated; a pumping part to conduct pressurized conveying of the floc included treatment water; a cyclone part to separate high density floc to downstream and treatment water with low density floc to upstream from the pressurized treatment water; and a flotation part to separate floc from the treatment water with floc supplied from the cyclone part. Therefore, the present invention have an effect that it is possible to improve purification speed of wastewater and obtain good quality of purified water.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: May 24, 2016
    Inventors: Joo Hyung Ko, Kwan Yeop Kim, Yun Jung Kim, Hyun Bae Kim, Hyoung Gun Kim, Hae Wook Nam, Hee Chul Yoon, Yu Seong Won, Jae Woong Park, Young Hwa Choi
  • Patent number: 9028700
    Abstract: A system and method of operating the same includes an absorption tank having a compressor communicating gas thereto, a suspended solid filtration tank having a primary inlet, a secondary inlet, a primary outlet and a secondary outlet and a pump comprising a pump inlet coupled to the secondary outlet and a pump outlet communicating fluid to the absorption tank. The absorption tank forms a solution from the fluid and gas. A turbine mechanically couples the pump with a common shaft extending to the pump. The turbine has a turbine inlet coupled to the absorption tank and a turbine outlet coupled to the secondary inlet. The turbine depressurizes the solution. The system may also use a centrifugal pump in place of a turbine and absorption tank.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Fluid Equipment Development Company, LLC
    Inventor: Eli Oklejas, Jr.
  • Patent number: 8944421
    Abstract: The invention relates to a device for aerating a suspension held in a treatment tank, in particular wastewater, activated sludge and the like, with a frame having longitudinal spars (1) and a compressed-air diffuser (3), the housing (G) of which has a multiplicity of first connecting pieces (4) for the connection of air diffuser lines (5) and a second connecting piece (6) for the connection of an air feed line, wherein the housing (G) is fastened to the frame such that first axes of the first connecting pieces (4) run approximately parallel to a plane containing the longitudinal spars (1). To simplify assembly, it is proposed that a second axis of the second connecting piece (6) forms an angle of 30 to 60° with the plane.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: February 3, 2015
    Assignee: Invent Umwelt-und Verfahrenstechnik AG
    Inventor: Marcus Hoefken
  • Patent number: 8926842
    Abstract: A water treatment system using a high pressure advanced oxidation process with unreacted ozone reusing is disclosed, which are able to increase a decomposition speed of a pollutant by reusing a high pressure advanced oxidation process which uses an ozone and photocatalyst and a photo-oxidation reaction of a ultraviolet ray. The capacity of the expensive ozone generator can be reduced as compared to the conventional advanced oxidation process which uses a large capacity ozone generator in which almost ozone is discharged into the air. In addition, it is possible to decrease the load of the off-gas ozone removing apparatus for removing the off-gas ozone which is discharged into the air.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: January 6, 2015
    Inventor: Jong Seob Shim
  • Patent number: 8926838
    Abstract: A process for the treatment of contaminated fluid and wastewater containing residuals from food processing and waste and residuals from animal feeding operations and effluent from the digestion of these residuals is disclosed. The process is carried out in an enclosed tank using a separation procedure that maintains the state of the separated solids in the same state as they were upon introduction to the system, i.e., aerobic, anaerobic or anoxic, based on the condition of the solids upon introduction to the system. The system utilizes rotary flow instead of rakes to harvest the solids from the effluent. The process has applications in the recovery of emulsion in wastewater treatment and the operation of digesters for re-feeding to the digester.
    Type: Grant
    Filed: February 9, 2008
    Date of Patent: January 6, 2015
    Assignee: Environmental Stewardship Solutions
    Inventor: Mark Stoermann
  • Patent number: 8919743
    Abstract: Apparatus and methods are disclosed for facilitating dissolution of one or more gases into a liquid. Preferred gases for use with the apparatus are oxygen, air, and ozone. An apparatus of the present invention includes a dissolution tank that includes a pressure vessel, at least one liquid spray nozzle, and a fluid outlet. The apparatus also includes a gas source, an element for passing fluid into the pressure vessel, and a discharge device connected to the fluid outlet, which discharge device is provided with at least one orifice. Preferred applications include wastewater treatment, treatment of drinking water, fermentation, and bioremediation.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 30, 2014
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Gregory Scott Osborn, Marty M. Matlock, Shandi S. Teltschik
  • Patent number: 8916046
    Abstract: The invention relates to a method for controlling oxygen supply in a tank (2) for biologically treating wastewater by alternating aeration including consecutive cycles, wherein each cycle comprises a first aeration phase and a second anoxic phase for reducing nitrites and nitrates formed during the preceding aeration phase, the tank is provided with sensors for measuring ammonia nitrogen (4b) and for measuring nitrate (4c) and optionally for measuring oxygen (4a) that is dissolved in the tank liquor or in the liquor thereof exiting the tank, a method according to which the oxygen supply is controlled in the aeration phase when the reduction speed of the nitrate measurement is less than a bottom threshold and the cutoff of the oxygen supply is also controlled in the aeration phase when at least one of the following triggering events occurs: the reduction speed in the measurement of ammonia nitrogen becomes lower than a bottom threshold; the total sum of ammonia nitrogen and nitrate measurements becomes higher
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: December 23, 2014
    Assignee: Degremont
    Inventors: Jean-Pierre Hazard, Patrick Descamps
  • Patent number: 8900460
    Abstract: A method for processing interface emulsion, water, and solids contained within a separator vessel that comprises the steps of continually extracting those components from the vessel and then passing them through a gas flotation cell. The cell, which is preferably a vertical induced gas flotation cell, separates the oil and water contained in the interface emulsion and discharges recovered oil from an upper portion of the cell and treated water from a bottom portion of the cell. The recovered oil and treated water may be further processed and recycled to the vessel or sent elsewhere. The treated water may also be recycled to the cell or sent to a process sewer. Fuel gas residing in an upper portion of the cell may be cooled and passed through a splitter. All the steps of the method comprise a closed system with no air emissions.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: December 2, 2014
    Assignee: Cameron International Corporation
    Inventors: Gary W. Sams, Ronald D. Hypes
  • Patent number: 8875899
    Abstract: A pumpbox, the pumpbox being in fluid communication with one or more vessels, wherein the pumpbox comprises a classification portion and level control means adapted to control the level of fluid within the one or more vessels.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 4, 2014
    Assignee: Xstrata Technology Pty. Ltd.
    Inventor: Michael Francis Young
  • Patent number: 8877065
    Abstract: A skim tank includes a flow-control structure that forces a solid-depleted phase of a mixed-phase feed into a toroidal motion within the container to thereby provide an up-flow movement within the structure. Most preferably, at least a portion of the solid-depleted phase is recirculated to further increase up-flow movement within the structure.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: November 4, 2014
    Assignee: Fluor Technologies Corporation
    Inventor: Rafique Janjua
  • Patent number: 8871090
    Abstract: Methods and systems for processing of liquids using compressed gases or compressed air are disclosed. In addition, methods and systems for mixing of liquids are disclosed.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: October 28, 2014
    Assignee: Turbulent Energy, LLC
    Inventors: David Livshits, Lester Teichner
  • Patent number: 8840786
    Abstract: A system for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water, the system including a gas floatation and primary oil contaminant removal subsystem including a tank for receiving a flow of the industrial waste water and a flow of gaseous microspheres, wherein the gaseous microspheres combine with oil droplets in the waste water to form flocs which float to the surface and are removed to provide processed waste water with the majority of the oil contaminants removed, and a contaminant removal subsystem for removing dissolved contaminants, particulate contaminants, and any remaining oil contaminants from the processed waste water.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: September 23, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Ionel Wechsler, Peter G. Marston
  • Patent number: 8834724
    Abstract: In reviewing the oil industry for the past 30 years there has been a need for a low maintenance, low cost, space saving Induced Gas Flotation Cell. With this said, a method has been invented to do this by making several changes in the present design philosophy of induced Gas flotation. First by providing a cylindrical vessel we have made a stronger unit with better structural integrity, and minimizing the opportunity for accelerated corrosion, secondly by changing the vital operations of the unit, specifically the recirculation rate of the system, lowering the overall discharge flow and increasing the discharge pressure we have been able to increase retention time and increase bubble dispersion, part and parcel with this change is the addition of multiple Eductors in each cell providing greater gasification per cell. The combination of these changes provides a greater overall efficiency thus the overboard water quality is improved using a smaller vessel to accomplish the objective.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Enviro-Tech Systems, L.L.C.
    Inventor: Frank A. Richerand
  • Patent number: 8828242
    Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: September 9, 2014
    Assignee: Genesis Fluid Solutions, Ltd
    Inventors: Michael K. Hodges, Larry D. Campbell
  • Patent number: 8771520
    Abstract: A fluid treatment apparatus comprises a fluid vessel defining first and second fluid chambers. A fluid inlet is provided for delivering a fluid to be treated into the first fluid chamber. One or more nozzle assemblies are provided for fluid communication between the first and second fluid chambers, wherein said nozzle assemblies are adapted to facilitate mixing of a gas with said fluid. The second fluid chamber is adapted to accommodate a fluid treatment process therein, including a floatation treatment. One specific use of the fluid treatment apparatus includes separating oil from water, particularly water produced from a subterranean formation.
    Type: Grant
    Filed: May 31, 2008
    Date of Patent: July 8, 2014
    Assignee: VWS Westgarth Limited
    Inventors: Neville Lange, Kenneth Wayne Severing
  • Patent number: 8728310
    Abstract: A system and method for processing impure water is achieved by using ozone for the separation and removal of certain contaminants and for further purification of the water. According to one embodiment, a gas comprised of ozone and air is injected into the impure water. The gas is converted to bubbles which are used as a flotation reagent while the ozone portion of the gas provides for the disinfection and deodorization of the liquid. The impure water is constantly supplied into an upper portion of a working volume or column of fluid contained within a processing unit. At the same time the gas is supplied into the bottom part of the same fluid column through one or more diffusers. Due to their porosity the diffusers generate the bubbles of this ozone-based gas so that each bubble has a predetermined size.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 20, 2014
    Assignee: RR Fish SIA
    Inventor: Andrei Tjutjunnik
  • Patent number: 8708160
    Abstract: A device is provided for filtering particles from a dishwashing fluid in a dishwashing machine, the dishwashing machine having a dishwashing container in which are disposed items to be subjected to the application of a dishwashing liquid thereto such that particles disentrained from the items during the application of a dishwashing liquid are entrained with the dishwashing liquid. The device includes a container operable to retain therein a predetermined quantity of a liquid mixed with at least one of a foam-forming substance and cleaning agents, the container including an arrangement for producing a flow of a gaseous fluid through the predetermined quantity of the liquid so as to generate a foam layer. The foam layer filters out from a dishwashing liquid passed through the foam layer a substantial fraction of particles entrained with the dishwashing liquid and such filtered-out particles are retained in the foam layer.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: April 29, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: M. Yavuz Dedegil, Rüdiger Eiermann, Helmut Jerg
  • Patent number: 8691089
    Abstract: The disclosure relates to a separation process. An aerated inlet mixture of fluid and solids is fed to a flotation separation vessel and is separated into an upper float layer and a lower clarified layer. The upper float layer is withdrawn from the vessel when the height of the upper float layer exceeds the height of an overflow conduit and forms a concentrated solids effluent. The lower clarified layer is withdrawn from the separation vessel as a clarified fluid effluent. The separation process is performed continuously using a control process that maintains a relatively stable distribution between the lower clarified layer and the upper float layer. The control process is a closed loop process that monitors the instantaneous height of the vessel contents and computes an error function based on the instantaneous height and a set-point height. The error function is used to periodically adjust the outlet flowrate of the clarified fluid effluent. The resulting process has improved stability (e.g.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 8, 2014
    Assignee: Anaergia Inc.
    Inventors: Joel Bias, Brian Ross
  • Patent number: 8685245
    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: Grant
    Filed: May 31, 2011
    Date of Patent: April 1, 2014
    Assignee: Therapeutic Proteins International, LLC
    Inventor: Sarfaraz Niazi
  • Patent number: 8678200
    Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: March 25, 2014
    Assignee: Genesis Fluid Solutions, Ltd
    Inventors: Michael Kent Hodges, Larry D. Campbell
  • Patent number: 8647514
    Abstract: A standing wave in a water current, which is subject to purification, is swirled in the lower mass-exchange chamber in order to create negative pressure along the central axis, the atmosphere air intake and crating of two countercurrents interacting with each other, resulting in a standing wave and oxygenation of the water current. A cylindrical mixing chamber, which is divided into the upper mass-exchange chamber and the lower mass-exchange chamber by dividing walls with a coaxial orifice towards the air-supply pipe and peripheral bypass channel. In the lower mass-exchange chamber, water, which is subject to purification, is swirled and under the negative pressure in the center it intakes air from the air-supply pipe, creating hydrosol and reaction area of ion exchange due to forming of the standing acoustic wave. Part of the processed current is outlet into the volume through a permeable wall in the side surface of the upper mass-exchange chamber.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: February 11, 2014
    Inventor: Leonid Jurievich Vorobiev
  • Patent number: 8632685
    Abstract: A multistage dissolved air flotation and advanced oxidation (MDAF-AO) system/method with multi-functions in oil recovery, solids removal, emulsion breaking, and advanced oxidation. Influent, with oil and suspended solids, enters a first stage for oil recovery includes a gas ionizer and an air dissolving pump. A second stage includes of two coagulation/flotation compartments connected in serial to enhance solids removal efficiencies. Micro air bubbles are created by air dissolving pumps in each compartment. A third stage is for the emulsion breaking unit to further remove or recover the emulsified oils. A fourth stage includes advanced oxidation by using ultraviolet (UV) and hydrogen peroxide to oxidize and disinfect the bacteria and microorganisms.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: January 21, 2014
    Assignee: WSI International LLC
    Inventors: Yuanchun Xu, Alfred Tyler, William Fields
  • Patent number: 8608965
    Abstract: A gas bubble agitated mixing system for viscous fluids comprising: a container (1) in which a viscous fluid (2) may be held; one or more gas pipes (6), each gas pipe having an outlet (8) arranged to introduce gas bubbles (9) into the base region of the container (1), said gas bubbles (9) being of a size suitable to agitate the viscous fluid (2). The system also comprises a moveable carrier arm (4) upon which said one or more gas pipe outlets (8) are mounted; and wherein the movement of the carrier arm (4) causes the position at which each outlet (8) introduces gas bubbles (9) into the container (1) to vary over time.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: December 17, 2013
    Assignee: Farm Renewable Environmental Energy Ltd.
    Inventors: Christopher Morris, James Murcott, Jonathan Tomlinson, Richard Tomlinson
  • Patent number: 8591738
    Abstract: In a membrane separation apparatus, a cleaning effect for membrane elements by scrubbing is improved. In the membrane separation apparatus 14 including a separation membrane 5 (membrane element) dipped in treated liquid in a treatment bath 15, and air diffusing means 2 for diffusing air bubbles 6 for cleaning the separation membrane 5, an air bubbles staying plate 3 is provided between the air diffusing means 2 and the separation membrane 5. The air bubbles staying plate 3 is configured to allow air bubbles 6 diffused from the air diffusing device 2 to stay, by which air bubbles 6 gather each other to form air bubbles 6 having large diameters. By causing air bubbles having large diameters to act on the separation membrane 5, air bubbles 6 can be allowed to act whole the separation membrane 5.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 26, 2013
    Assignee: Meidensha Corporation
    Inventors: Kazuhiro Toyooka, Hiroshi Noguchi, Shigeo Sato
  • Patent number: 8540884
    Abstract: A flotation apparatus (10) for the separation of solid particles from a suspension with formation of a fraction lacking in solid particles and a fraction rich in solid particles comprises a tank with an inlet (14) for the suspension, with an outlet (16) for the fraction lacking in solid particles, with an outlet (18) for the fraction rich in solid particles, and with at least one block of slats (20) composed of multiple overlapping slats (22), wherein the at least one block of slats (20) has a rear side oriented toward the tank wall and a front side arranged on the opposite side of the block of slats (20). On the rear side of the at least one block of slats, a plate (26) is arranged which extends over at least a part of the rear side of the block of slats, wherein the plate has a plurality of openings which facilitate the penetration of liquid through the plate.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: September 24, 2013
    Assignee: Meri Entsorgungstechnik fuer die Papierindustrie GmbH
    Inventors: George Troubounis, Lucas Menke
  • Patent number: 8523984
    Abstract: Water circulation systems with air stripping arrangements to treat and remove undesirable disinfectant byproducts from potable water in municipal water tanks, ponds, and other bodies of water. The systems include a flotation platform, dish, draft tube, and an impeller to draw water from the depths of the tank up through the draft tube to be discharged outwardly of the dish to create a primary circulation pattern and an induced, inner or secondary circulation pattern. Each system additionally includes an air stripping arrangement positioned adjacent and about the upper portion of the draft tube and adjacent an upper portion of the secondary flow. The air stripping arrangement includes a plurality of submerged sets of air manifolds wherein pressurized air is supplied to the air manifolds and driven out of them in bubbles to create a treatment zone immediately above each set of manifolds.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: September 3, 2013
    Assignee: Medora Environmental, Inc.
    Inventors: Corey M. Simnioniw, Jonathan L. Zent, Douglas P. Walter, Joel J. Bleth, Willard R. Tormaschy
  • Patent number: 8518266
    Abstract: A dissolved air flotation clarifier for removing impurities from a liquid to be clarified. The dissolved air flotation clarifier includes a housing having an inlet for receiving a liquid to be clarified. The housing further includes a reaction zone, a clarification zone and an effluent channel. The reaction zone has at least one saturated water distributor and at least one dissolved air flotation nozzle operably connected to the at least one saturated water distributor to receive saturated water from the at least one saturated water distributor. The dissolved air flotation nozzle is configured to release micro-bubbles from a saturated water so that the micro-bubbles can mix with the liquid to be clarified to remove impurities from the liquid to be clarified.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: August 27, 2013
    Assignee: RG Delaware, Inc.
    Inventors: R. Lee Roberts, Mark Kevin Addison
  • Patent number: 8465642
    Abstract: A method and apparatus for separating impurities from a liquid stream includes a feed tank for containing an untreated liquid, a mixer for generating and mixing bubbles throughout the wastewater, and a settling tank for allowing the wastewater to settle for removal of impurities through dissolved gas floatation. The mixer includes a housing and a rotor rotatably mounted within the housing. The rotor is electrically isolated and the peripheral wall of the housing is electrically isolated and the rotor preferably has bores formed in its peripheral surface to produce cavitation to aid in mixing of fluid within the mixer. A power supply is coupled to establish a relatively positive electrical charge on the rotor and a relatively negative electrical charge on the wall of the housing. The charge causes electrolysis to occur within the fluid, which forms small low surface tension gas bubbles on the rotor and housing wall.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: June 18, 2013
    Assignee: Hydro Dynamics, Inc.
    Inventor: Bijan Kazem
  • Patent number: 8460555
    Abstract: This invention reveals to the public the centralized sump oil and acid oil treatment process and system. The process consist of (1) the filter; (2) entry to reaction kettle, the sodium carbonate solution added at the time of air floatation till PH value keeps about 6.0-8.0; and emulsion splitter and flocculating agent added for further reaction; (3) suspension of air floatation and static settlement; (4) the international crude oil is collected after the detergent oil at the upper level of the reaction kettle is dehydrated under normal and reduced pressure; the wastewater is drained after filtering by the natural oil removal tank and the oil-water filter; the sludge is solidified by the cement and the quick lime and aluminium oxide are used as the coagulant aid for solidifying the sludge.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: June 11, 2013
    Inventor: Gang Yuan
  • Publication number: 20130140243
    Abstract: A method of purifying raw water comprises the steps of supplying the raw water to a generally vertical, open-ended inlet cylinder (23) in a reservoir (20), exposing the water in the inlet cylinder (23) to air for accomplishing oxidizing of matter, such as iron, manganese, and hydrogen sulphide in the water and/or agitation of the water, allowing the oxidized matter to fall down by gravity to the bottom of the reservoir (20), allowing the purified water to flow upwards past the inlet cylinder (23) and through a distribution disc (24) in the reservoir (20), and removing the purified water from the upper part of the reservoir (20).
    Type: Application
    Filed: May 4, 2011
    Publication date: June 6, 2013
    Inventor: Bert Gustafsson
  • Patent number: 8440076
    Abstract: A water treatment unit comprising a bath (2) delimited by a bottom wall (3) and a lateral wall (4) developing in elevation from a whole perimeter of the bottom wall (3), means for supplying (14) the water to be treated into the bath (2), at least an aeration device (5) have dissolving functions in collaboration with the means for supplying (14), for introducing a flow of oxygen or ozone into the water contained in the bath (2) in order to saturate the water and/or to give rise to foam, means for eliminating (6) the foam, at least an outlet section (13) of the treated water from the bath (2). The bath (2) develops prevalently horizontally and internally comprises a dividing wall (7) which divides the internal volume of the bath (2) into a turbulent water zone (2a) and a calm water zone (2b).
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 14, 2013
    Assignee: Acqua & Co. S.R.L.
    Inventor: Giovanni Magnanini
  • Patent number: 8440077
    Abstract: A combined degassing and flotation tank for separation of a water influent containing considerable amounts of oil and gas. A rotational flow is created in the tank which forces the lighter components such as oil and gas droplets towards an inner concentric cylindrical wall where they coalesce and rise to the surface of the liquid and are removed via the outlet. The heavier particles are forced down and sink to the lower part where they can be removed as a sludge. The water is discharged via an outlet in the lower part of the tank. The combined degassing and flotation tank is particular suited for use in oil production at sea for removal of oil and gases from water streams before the water is returned to the sea.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: May 14, 2013
    Assignee: Schlumberger Norge AS
    Inventor: Stein Egil Oserød
  • Patent number: 8431022
    Abstract: A modular dual vessel DAF includes a frame, adjacent treatment sections mounted to the frame and including a multi-stage flocculator, aeration injector and mix chamber, stilling well, separation tank, effluent weir having an enclosed peaked upper portion and bottom inlet, clear well with height adjustable risers, surface skimmer, inclined sludge plate, and a sludge collection section, wherein the treatment sections may operate independently, in parallel, or in series. A modular dual vessel DAF may include a separator plate pack in each separation tank.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 30, 2013
    Inventor: Stuart Johnathan Ward
  • Patent number: 8431027
    Abstract: A dissolved air flotation system and method for purifying fresh water.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 30, 2013
    Assignee: Sionix Corporation
    Inventors: Mark J. Hayes, Joey M. Anderson
  • Patent number: 8425768
    Abstract: The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include an oxidation reactor configured to receive a flow of wastewater from a wastewater producing process. The oxidation reactor may be further configured to oxidize a chemical associated with the flow of wastewater with an oxidation agent. The oxidation reactor may include at least one reaction member configured to pressurize at least a portion of the oxidation reactor. The system may further include at least one resin tank configured to contain an ion exchange resin configured to target a particular metal, the at least one resin tank configured to receive an output from the oxidation reactor. Numerous other embodiments are also within the scope of the present disclosure.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 23, 2013
    Assignee: Hydroionic Technologies Co., Ltd.
    Inventors: Rainer Bauder, Richard Hsu Yeh
  • Patent number: 8413968
    Abstract: The water aeration capsules provide a quick and highly portable system for aerating polluted water. The capsules contain bubbles of air, oxygen, and/or other gas(es) surrounded by a water soluble shell or membrane of a suitable substance, e.g., various salts, sugars, water-soluble polymers, such as polyvinyl alcohol. The capsules are ballasted to make their specific gravity greater than the water they displace. The ballast may comprise any non-toxic metal, sand, clay, or other non-organic material, and/or fish bait or other food for aquatic animals. Magnetically attractive ballast elements may be provided, and a magnetic sheet may be placed on the bottom of a smaller body of water to enhance the settling of the capsules. Various means of dispensing the capsules from various mobile carriers are also disclosed, including dispensing by hand from shore or by a diver, from a small boat or larger ship, and/or from aircraft.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: April 9, 2013
    Inventor: Bader Shafaqa Al-Anzi
  • Patent number: 8394278
    Abstract: A system for filtering organic molecules from an electrolyte solution, including a feed inlet line adapted to carry a solution with organic molecules, a filter vessel secured to the inlet line, and a pump adapted to introduce dissolved air into the solution in the feed inlet line. The filter vessel is a solvent extraction filter having coalescing media above a solution outlet at the bottom of the vessel and an organic vent outlet at the top of the vessel. The system operates by (a) dissolving air into the solution, (b) inputting the solution with dissolved air into the filter vessel, (c) outletting solution from the bottom vessel outlet to flow solution down through coalescing media, and (d) periodically venting floating organic molecules from the top of the vessel.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: March 12, 2013
    Assignee: Smith & Loveless, Inc.
    Inventor: Robert G. Crowell
  • Patent number: 8388845
    Abstract: An aspect of the present invention provides a wastewater treatment method for treating wastewater containing ammonium nitrogen, including the steps of: oxidizing the ammonium nitrogen in the wastewater to nitrite with nitrifying bacteria in a treatment tank in which the nitrifying bacteria and anaerobic ammonium-oxidizing bacteria having a half-saturation constant of 6.1 mgN/L or more with respect to nitrite coexist; and denitrifying the nitrite formed through the oxidation of the ammonium nitrogen, with the anaerobic ammonium-oxidizing bacteria in the treatment tank, while using the ammonium nitrogen contained in the wastewater as a hydrogen donor.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: March 5, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Kazuichi Isaka, Yuya Kimura, Tatsuo Sumino
  • Publication number: 20130048575
    Abstract: The present disclosure relates to water treatment systems, and specifically to mobile flotation tanks, mobile chemical mix tanks, and mobile integrated water treatment systems, and methods regarding the same.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 28, 2013
    Inventors: Eli Gruber, Miguel Ribeiro
  • Patent number: 8366938
    Abstract: The invention relates to a method and a device for purifying liquid effluents, in which water is separated from substances by performing, in a single vertical enclosure (3), a vertical bubbling in the effluents fed at a flow rate d. The enclosure has a free surface and includes at least two compartments (4, 5, 6, 7) communicating together for enabling a circulation between the compartments successively from the top to the bottom and from the bottom to the top between the lower portion thereof and a medium level at a flow rate D at least three times higher than the flow rate d. The supernatant phase is continuously discharged and a hydraulic or gaseous chemical oxidation of said effluents is simultaneously carried out in the same enclosure, the chemical oxidation rate and the bubble flow rate and size being selected in order to progressively obtain a separation of the solid/liquid and liquid/liquid phases at the surface of the enclosure for obtaining a COD below a predetermined threshold.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: February 5, 2013
    Assignee: Orege, Societe a Responsabilite Limitee
    Inventors: Patrice Capeau, Michel Lopez, Pascal Gendrot