Recirculation Patents (Class 210/194)
  • Patent number: 11986773
    Abstract: A membrane defect inspection method that can detect damage in a filtrate membrane and can detect presence or absence of damage or a seal defect in a membrane module; and the method is for a membrane module set including multiple membrane modules connected under gas detection piping communicating with primary spaces of the multiple membrane modules where raw water is supplied or secondary spaces in multiple membrane modules where treated water is extracted after the raw water is filtrated by membranes. The method includes a gas injection process where gas is injected into spaces opposite the primary or secondary spaces communicating with gas detection piping in the multiple membrane modules while the gas detection piping is filled with water, and a vibration detection process where a vibration sensor is brought into contact with a protrusion protruding outward from the gas detection piping to detect vibration of the gas detection piping.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 21, 2024
    Inventors: Keishi Watanabe, Shintaro Nishimoto, Tetsuya Uenaka, Fang Zhao, Akira Matsunaga
  • Patent number: 11866358
    Abstract: The invention relates to a household appliance for the implementation of a method enabling the instant production of mineral water with a selected composition and flavour, upon request, from tap water. The tap water circulates through a filtering unit, a demineralisation unit and a remineralisation unit comprising at least one secondary input, connected to a fluidic microfeeding device, downstream from which a portion of the circuit is a static mixer. An inlet valve and the outlet valve are arranged to operate in parallel and simultaneously.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 9, 2024
    Assignee: AQVITA SRL.
    Inventor: Philippe Tob
  • Patent number: 11801484
    Abstract: A food recycler can include a mixing bin defining a mixing chamber having a first inlet and a first outlet. A stirrer has a stirrer drive shaft and at least one blade coupled to the stirrer drive shaft and located within the mixing chamber. An output bin defines an output chamber having a second inlet operably coupled to the first outlet and a second outlet.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: October 31, 2023
    Assignee: Whirlpool Corporation
    Inventors: Wade Atkinson, Mohsin Mahamadshafi Attar, Abhishek Pradeep Buzruk, Rajwardhan Deshmukh, Rachel Maghas, Bhushan Vijay Patil
  • Patent number: 11787712
    Abstract: The invention relates to a water treatment plant comprising: means for supplying water for treatment, wherein said water has been coagulated previously, a flocculation-decantation device having means for dispensing at least one flocculant reagent, means for dispensing at least one ballast, means for extracting decantation sludge, means for discharging the treated water, means for separating said ballast contained in the ballasted sludge, and means for recycling the ballast that has been cleaned in this manner back into the flocculation-decantation device, characterised in that: said flocculation-decantation device has a single tank in the lower portion of which a stirring mechanism is arranged; wherein said single tank comprises slats in its upper portion; and said slats are separated from the stirring mechanism by a distance “d” which is between approximately 0.5 metres and approximately 3 metres. The invention also relates to a method using said plant.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 17, 2023
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Abdelkader Gaid, Hervé Paillard, Philippe Sauvignet
  • Patent number: 11767476
    Abstract: A system for crude oil desalting and dehydration includes a separation vessel defining a cavity extending along a central axis having a substantially-vertical orientation. The separation vessel comprises a first distributor configured to distribute a mixture within the cavity of the separation vessel, and a second distributor configured to distribute a wash fluid within the cavity of the separation vessel. The mixture comprises crude oil, water, dissolved salts, free salts, or combinations thereof, and the wash fluid comprises an aqueous fluid. The first distributor is disposed within the cavity below the second distributor, and an interface level controller is configured to detect an interface between an oil phase and an aqueous phase and to maintain the interface within a predetermined range within the cavity.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: September 26, 2023
    Assignee: VME Process, Inc.
    Inventors: Terrance John Larry Trofimuk, Fiona McGregor, Michael Thomas
  • Patent number: 11731891
    Abstract: An organic wastewater treatment apparatus biologically treats organic wastewater containing nitrogen using a treatment tank storing activated sludge. A top-bottom partition member divides the treatment tank in into an upper space and a lower space. A plurality of anoxic tanks are formed in the lower space, while a plurality of aerobic tanks, each of which having an immersion-type membrane separation device, are formed in the upper space. A raw water supply path divides and supplies the organic wastewater to each anoxic tank. A plurality of denitrifying liquid transfer paths repeatedly transfers the activated sludge from the anoxic tanks to the aerobic tanks, while a plurality of nitrifying liquid transfer paths repeatedly transfer the activated sludge from the aerobic tanks to the anoxic tanks, whereby the activated sludge is circulated throughout the treatment tank.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: August 22, 2023
    Assignee: Kubota Corporation
    Inventors: Soichiro Yatsugi, Shinya Nagae, Hitoshi Yanase
  • Patent number: 11697126
    Abstract: A granular litter cleaning apparatus comprises a separation system having a separation tank adapted to receive a mixture of granules and plastic litter, and water therein, the separation tank having a top opening, and a closeable bottom outlet, and at least one water inlet for feeding water to the separation tank. A collect subsystem is for conveying a mixture of granules and plastic litter to the separation tank. A pump system is in fluid communication with the water inlet. The pump system is operated to raise a level of water in the separation tank to skim water with plastic litter out through the top opening of the separation tank. The closeable bottom outlet is openable to empty the separation tank from granules decanted in a bottom of the separation tank. A process for separating plastic litter from granules is also provided.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: July 11, 2023
    Inventors: Jean-David Lantagne, Jean-Felix Tremblay, Samuel Duval, Alexandre Savard, Philippe Gosselin, Christophe Caron-Garant, Francois Pontbriand, Edouard Dumas-Longpre, Marc-Alexandre Santerre, Dany Audette, Simon Trepanier, Christophe Tremblay
  • Patent number: 11685677
    Abstract: A device and method for shortcut nitrogen removal and nitrite-oxidizing bacteria activity inhibition are disclosed herein. An embodiment of the present invention provides a hollow fiber diffuser comprising: a plurality of hollow fibers on which bacteria can be attached and grow; and an inlet capable of supplying gas to one sides of the plurality of hollow fibers, wherein the gas includes oxygen and carbon dioxide, nitrite can be produced by the oxygen, and the concentration of oxygen in the gas is adjusted by the oxygen and the carbon dioxide.
    Type: Grant
    Filed: May 29, 2021
    Date of Patent: June 27, 2023
    Inventors: Daehwan Rhu, Minki Jung, Donjin Ju, Honkeun Park, Dongwoo Kim, Hojae Hwang
  • Patent number: 11667554
    Abstract: Wastewater treatment plants and processes for treating wastewater are described. The wastewater treatment plant utilizes channel plug flow dynamics with attached growth media and pure oxygen or mixtures of pure oxygen and compressed air.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: June 6, 2023
    Assignee: McFadden Engineering, Inc.
    Inventor: A. Frank McFadden
  • Patent number: 11529446
    Abstract: The invention relates to an extracorporeal blood treatment device comprising a hydraulic system II comprising a plurality of flow paths, the blood treatment device having a control unit 40 which provides an operating mode for disinfecting the hydraulic system with a liquid which can be supplied via one of the flow paths. Moreover, the invention relates to a method for operating an extracorporeal blood treatment device with a hydraulic system comprising a plurality of flow paths. The blood treatment device according to the invention is characterized in that the hydraulic system II has a valve device 23 which provides several switching positions. The valve device 23 has an inlet 25A for the liquid for disinfecting the hydraulic system and a plurality of outlets 26A, 27A, 28A, wherein in a switching position the inlet 25A is connected to one of the outlets 26A, 27A, 28A and in another switching position the inlet is connected to a plurality of outlets 26A, 27A, 28A.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: December 20, 2022
    Inventor: Tobias Irrgang
  • Patent number: 11492859
    Abstract: A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: November 8, 2022
    Inventors: Troy Bollom, Jon Paul Rountree, Joe Don Selman
  • Patent number: 11352281
    Abstract: Disclosed a device for preventing and controlling pollutants in the reuse of reclaimed water in agricultural activity areas with extreme water shortage, including A2/O tank (1), nano-aeration tank (2) and quick soil infiltration device (3) connected in sequence. A2/O tank (1) is fed with wastewater to be treated, which is treated sequentially in anaerobic, anoxic and aerobic environment, thereafter the supernatant is transported into nano-aeration tank (2). The supernatant treated by nano-aeration tank (2) is transported into quick soil infiltration device (3), and is allowed to flow through one or more layers of fillers laid in quick soil infiltration device (3) to degrade or remove pollutants.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: June 7, 2022
    Inventors: Beidou Xi, Lei Wang, Yalei Zhang, Jinsheng Wang, Yali Zhang, Wenbing Tan, Tongtong Li, Yangyang Wang, Hui Liu, Feng Wu
  • Patent number: 11020745
    Abstract: The present disclosure provides devices, systems and methods for concentrating particles after application of a field and flipping the direction of the particles. The field applied to the particles can be an acoustic field. The particles can be flipped from a first flow stream at a higher speed into a second flow stream at a lower speed to aid in concentrating the particles, including concentration within an analysis region.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 1, 2021
    Assignee: Life Technologies Corporation
    Inventors: Michael Ward, Jason Malkin, Ken Lefton, Saul Selberg
  • Patent number: 10974363
    Abstract: A chemical mechanical polishing system includes a carrier head having a flexible membrane and a chamber to apply pressure to the flexible membrane, a pressure control unit, a pressure supply line connecting the pressure control unit to the chamber, and a sensor located along the pressure supply line to detect a contaminant in the pressure supply line.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 13, 2021
    Assignee: Applied Materials, Inc.
    Inventor: Ronald Vern Schauer
  • Patent number: 10954532
    Abstract: The invention relates to a process for the production of biogas from biomass, in particular from lignocellulose-containing biomass. According to the invention bio gas is produced from lignocellulose-containing biomass in a process, wherein the cellulose and hemicellulose in the lignocellulose are made accessible for bioconversion.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: March 23, 2021
    Inventors: Johannes Wouterus Van Groenestijn, Gijsbert Maurits Bos
  • Patent number: 10829399
    Abstract: An anaerobic reactor (1) for treating waste water includes a reaction vessel (2) and a three phase separator (4) above the reaction vessel and arranged to receive effluent from the reaction vessel. The three phase separator includes an outer wall (10, 14) connected at its bottom to the top of the reaction vessel and a liquid outlet (42), a lid (16) closing the top of the outer wall. The lid has a gas outlet (17) above the level of the liquid outlet. The three phase separator also includes a funnel (18) arranged above the reaction vessel, a guide wall (30) spaced from and arranged radially outward of the funnel so to surround an upper aperture of the funnel and a baffle wall (36) spaced from and arranged between the guide wall and the liquid outlet.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: November 10, 2020
    Inventor: Ke Yang
  • Patent number: 10730773
    Abstract: An aerated wetland system used for wastewater treatment is disclosed. The system includes a main frame with an entrance and an output opening. The wastewater is entered into the system with maximum velocity via the entrance and via a racetrack. The racetrack comprises an agitated flow pattern with a plurality of baffles along the longitudinal axis of the racetrack to deflect the wastewater and create turbulent flow into the wastewater. The racetrack further includes at least four intersecting sections. The at least two intersecting sections include washed soils and an aeration system and other two intersecting sections include washed soils and a plurality of wetland plants respectively, thereby subjecting the influent wastewater to anaerobic and aerobic conditions respectively, along the racetrack to effectively purify and treat volatile compounds in the influent wastewater. The outlet opening directs out effluent wastewater from the aerated wetland system via the effluent device.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 4, 2020
    Inventors: Mohammad Hosein Mozaffari, Ehsan Shafiepour, Scott Wallace, Gholamreza Rakhshandehroo, Ahmad Mirbagheri Firozabad
  • Patent number: 10717960
    Abstract: This patent document relates to the field of biotechnological apparatuses. It relates particularly to a biotechnological apparatus comprising a bioreactor, an exhaust gas temperature control device and a method for treating an exhaust gas stream. This patent document further relates to a connection device for a sterile single-use fluid conduit of a single-use bioreactor and to a method for treating a fluid stream. The reusable connection device comprises a receptacle in which a portion of the fluid conduit can be detachably arranged, and a coupling member connecting the connection device to a temperature control device, the receptacle having a contact surface which is arranged such that the contact surface abuts a fluid conduit arranged in the receptacle, and wherein a portion of a fluid conduit can be introduced into the receptacle in a direction running substantially orthogonally to a longitudinal axis of the connection device.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: July 21, 2020
    Inventors: Matthias Arnold, Heinz Gerhard Köhn, Nico Gülzow, Sven Eikelmann, Guido Ertel, Sebastian Selzer
  • Patent number: 10683162
    Abstract: A sludge digester including a vessel and floating cover. The vessel includes a sidewall and an interior volume configured to receive and contain sludge. According to one embodiment, the cover comprises a frame structure that is constructed and arranged to form a skirt member formed at a periphery of the cover and extending downwardly into the vessel, and a continuous ballast ring attached to a lower portion of the skirt member and configured to form a trough member with an interior surface of the skirt member. The sludge digester may also include a guide system coupled to the sidewall and the skirt member and configured to allow vertical displacement of the cover with change in volume of at least one of a gas and a sludge contained in the vessel beneath the cover.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: June 16, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventors: Matthew P. Bronk, Douglas N. Muller, Thomas Mangione
  • Patent number: 10501491
    Abstract: A method for purifying a polypeptide by ion exchange chromatography is described in which a gradient wash is used to resolve a polypeptide of interest from one or more contaminants.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: December 10, 2019
    Assignee: Genentech, Inc.
    Inventors: Jefferson C. Emery, Paul J. McDonald, Rhona O'Leary
  • Patent number: 10399873
    Abstract: Disclosed herein are systems and methods for removing fine particulate matter from a fluid, comprising a separator that separates an inflow fluid stream into an overflow fluid path and an underflow fluid path, where the underflow fluid path is treated with a tethering material that attaches to the coarse particulate matter to form tether-bearing anchor particles and where the overflow fluid path is treated with an activating material so that the activating material interacts with the fine particulate matter to form activated particles. After these treatments, the underflow fluid path containing the tether-bearing anchor particles is commingled with the overflow fluid path containing the activated particles, so that a removable complex is produced that can be removed in a settling facility, thereby removing the fine particulate matter from the fluid.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: September 3, 2019
    Assignee: Soane Mining, LLC
    Inventors: Patrick D. Kincaid, Robert P. Mahoney, David S. Soane
  • Patent number: 10196291
    Abstract: Tertiary wastewater treatment wherein a tank is divided into a primary separation chamber, an aerobic chamber, and a clarifier chamber. Media are preferably disposed in the aerobic chamber and most preferably, the media can be contained in one or more porous containers. A recirculation path is preferably provided between the aerobic chamber and the primary separation chamber. In one embodiment, the recirculation between the two chambers can be powered by an air lift pump.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 5, 2019
    Assignee: Adelante Consulting, Inc.
    Inventors: Virginia Lynne Smith, Charles Joseph English, Jennifer Leigh Pope
  • Patent number: 10190188
    Abstract: A system and method are disclosed for mixing a suspension. The suspension may optionally have a low liquid viscosity. The suspension may, optionally, include a metallurgy solvent extraction (SX) mixture. The system and method may be at an industrial scale. In some embodiments, suspension may be stirred at high energy dissipation rate with a large impeller. The system may optionally include baffles. The impellor and/or the baffles may optionally include a rounded edge. The method may be applied to retrofitting a SX plant. The input feed to a mixing reactor may include an emulsion and/or multiple discrete phases.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: January 29, 2019
    Inventors: Yuri Kokotov, Leonid Braginsky, Roman Sheinman
  • Patent number: 10138147
    Abstract: A water treatment device (1) is provided with: a biological treatment tank (2) for storing a stored liquid (5); a pump (7) for generating a circulating liquid flow formed of the stored liquid (5); a gas-liquid two-phase flow generation device (8) for using the circulating liquid flow to suction a gas containing oxygen, whereby a gas-liquid two-phase flow in which the gas is dispersed in the circulating liquid flow is generated; and a nozzle (12) for injecting the gas-liquid two-phase flow into the biological treatment tank (2). Such a water treatment device (1) is capable of adequately circulating the stored liquid (5) in the biological treatment tank (2), adequately aerating the stored liquid (5), and adequately treating the stored liquid (5).
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: November 27, 2018
    Inventors: Jun Satou, Susumu Okino, Nobuyuki Ukai, Hideo Suzuki, Hiroshi Nakashoji, Shigeru Yoshioka, Hideaki Sakurai, Naoki Ogawa
  • Patent number: 10081191
    Abstract: A liquid ejecting apparatus includes a liquid ejector that ejects a liquid, a liquid supply flow path that connects a liquid supply source and the liquid ejector, a plurality of branch flow paths provided in the liquid supply flow path, filters that are disposed separately in each of the branch flow paths, and a flow path opening/closing mechanism that opens and closes the branch flow paths.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: September 25, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Masato Murayama, Ryoji Fujimori, Yuji Aoki, Toru Saito, Masakazu Ohashi, Keiichiro Yoshino, Satoru Kobayashi
  • Patent number: 10074546
    Abstract: Disclosed is a processing liquid supplying apparatus. The apparatus includes: a processing liquid supply source configured to supply a processing liquid for processing a substrate to be processed; an ejection unit configured to eject the processing liquid to the substrate to be processed; a filter device configured to remove foreign matters in the processing liquid; a supply pump and an ejection pump which are provided in the supply path at a primary side and a secondary side of the filter device, respectively; and a control unit configured to output a control signal to decompress and degas the processing liquid supplied from the processing liquid supply source by using one of the supply pump and the ejection pump, and subsequently, pass the degassed processing liquid through the filter device beginning from the primary side to the secondary side of the filter device by using the supply pump and the ejection pump.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: September 11, 2018
    Assignee: Tokyo Electron Limited
    Inventors: Yuichi Terashita, Kousuke Yoshihara, Koji Takayanagi, Toshinobu Furusho, Takashi Sasa
  • Patent number: 10022688
    Abstract: An aeration system may have a submersible aerator that may be located on the bottom of a body of water and a floating aerator that may operate directly above the submersible aerator. The submersible aerator may create a laminar column of bubbles and may be powered by an air compressor. The floating aerator may use a motor driven propeller to agitate water on the water surface. A controller may determine when to operate the aerators, and may operate them separately or together in some instances. Some embodiments may have a controller that operates the aerators differently based on energy supply, which may vary in solar powered systems with a battery bank.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: July 17, 2018
    Inventor: Jimmie A. Keeton, Jr.
  • Patent number: 10005687
    Abstract: A dissolved gas flotation system including a flotation cell having an inlet and an outlet defining a direction of flow along a longitudinal axis extending from the inlet to the outlet. The flotation cell has a top and a bottom to define a cell depth extending from the top of the flotation cell to the bottom of the flotation cell in a direction of a transverse axis transvers to the longitudinal axis. A first means discharges a first dissolved gas and bubble mix in a first direction adjacent the inlet; and a second means discharge a second dissolved gas and bubble mix in a second direction adjacent the outlet counter-current to the first direction.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 26, 2018
    Assignee: Hydro Treatment Technologies, LP
    Inventor: David B. Rice
  • Patent number: 9951509
    Abstract: A system and process for removing from an aqueous stream impurities such as grit, particulates, floating debris, suspended solids, turbidity, bacteria, fecal coliform, oil, grease, color, and the like, and for treating an unacceptable biological oxygen demand, chemical oxygen demand, and/or dissolved oxygen by utilizing a treatment system positioned partially in a channel adapted to a flow of the aqueous stream. The treatment system comprises a containment zone for containing the aqueous stream for treatment by at least one of traveling or stationary screen filtration, aeration, anaerobic and/or aerobic digestion, clarification, media filtration, chemical addition, disinfection, pH adjustment, particulate removal, and/or the like. A partition wall is provided to bypass untreated water such as storm water. After passing untreated waste water through the treatment zone, the treated aqueous stream may be recycled for further use or discharged to its desired destination, such as a lake, river, or ocean.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: April 24, 2018
    Inventor: Ken Pandya
  • Patent number: 9938173
    Abstract: Described herein are methods and devices for biologically treating water and/or wastewater. The methods and devices for treating wastewater may be enhanced using an surge lifting device which moves water and/or solids using volumes of air (for liquid transfer and mixing) and the automatic sludge return mechanism, combined with alternating aeration on and off operation to achieve comprehensive nitrogen and phosphorus removal. This surge lifting device can provide occasional surges of water using large bubbles which are able to move great volume of liquid while minimizing dissolved oxygen transfer to the surrounding liquid. Use of the devices and processes herein provides a simple, eloquent approach to wastewater treatment with less operation and maintenance costs than conventional devices and/or processes. The same surge lifting device can also be installed in an anaerobic digester, and use the biogas generated below the device to automatically mix the digester, without external energy input.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 10, 2018
    Inventor: Jianmin Wang
  • Patent number: 9896361
    Abstract: An orbital wastewater treatment system includes a tank assembly, at least one impeller, at least one flow-diversion mechanism, at least one actuator, optionally at least one sensor disposed in the tank assembly, and a control unit. The tank assembly has three treatment zones and pairs of passages between the first zone and the second zone and between the second zone and the third zone. The impeller disposed in the tank assembly moves mixed liquor under process about the tank assembly. Multiple flow-diversion mechanisms disposed at the passages between the zones of each pair control process conditions pursuant to a predetermined schedule and/or at least partially in accordance with input from the one or more sensors.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: February 20, 2018
    Assignee: OVIVO INC
    Inventors: Thomas Leland, Joy Emory, Steve Myers
  • Patent number: 9868760
    Abstract: A method for purifying a polypeptide by ion exchange chromatography is described in which a gradient wash is used to resolve a polypeptide of interest from one or more contaminants.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 16, 2018
    Assignee: GENENTECH, INC.
    Inventors: Jefferson C. Emery, Paul J. McDonald, Rhona O'Leary
  • Patent number: 9845257
    Abstract: The present invention provides a vertical sewage treatment device including an anaerobic chamber, an anoxic chamber, an aerobiotic chamber, and a secondary precipitation chamber, wherein the anaerobic chamber, the anoxic chamber, the aerobiotic chamber, and the secondary precipitation chamber are vertically arranged in sequence from the bottom to the top. According to another aspect, the present invention also provides a sewage treatment method using the foregoing vertical sewage treatment device. The sewage treatment device and method of the present invention have the advantages such as a reduced occupied area, improved oxygenation efficiency, a decreased head loss, a reduced invalid structure volume, and a low heat loss.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: December 19, 2017
    Assignee: Chinese Research Academy of Environmental Sciences
    Inventors: Liancheng Xiang, Yonghui Song, Junqi Wu, Siyu Wang, Jianping Li, Xingfa Liu
  • Patent number: 9650267
    Abstract: A fluid treatment reactor is provided. Separate input ports for influent and recycled effluent serve to eliminate the need for pH adjustment or carbonate stripping of the influent and recycled effluent flows.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: May 16, 2017
    Assignee: Nalco Company
    Inventor: Kevin Patrick O'Leary
  • Patent number: 9643860
    Abstract: The present invention relates to systems and methods for desalinating and/or treating polluted water. More particularly, the present invention relates to systems and methods for desalinating and/or treating polluted water using gas hydrates. In particular, the system comprises a desalination tank configured to form gas hydrates using a suitable hydrate former taken from a storage tank that is operatively connected to the desalination tank. With all operations, including formation of gas hydrates, discharging of highly saline water, washing the gas hydrates and dissociation of gas hydrates being conducted in a single pressurized tank such as the desalination tank, the present apparatus provides a simple and efficient solution at a low manufacturing and operating cost.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: May 9, 2017
    Inventor: Amit Katyal
  • Patent number: 9597679
    Abstract: Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: March 21, 2017
    Assignee: ECOLAB USA INC.
    Inventors: Terrence P. Everson, Li Wen, Lylien Tan, Peter Voss, Mark Toetschinger
  • Patent number: 9593028
    Abstract: Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 14, 2017
    Assignee: Ecolab USA Inc.
    Inventors: Terrence P. Everson, Li Wen, Lylien Tan, Peter Voss, Mark Toetschinger
  • Patent number: 9508574
    Abstract: According to an embodiment of the present disclosure, a process liquid supply apparatus operating method is provided. The method includes filling a filter unit with a process liquid from an upstream side of the filter unit to a downstream side of the filter unit after newly mounting or replacing the filter unit and repeating a depressurization filtering process and a pressurization filtering process for a predetermined number of times. The depressurization filtering process depressurizes the process liquid in the downstream side of the filter unit and thereby allows the process liquid to permeate through the filter unit. The pressurization filtering process pressurizes the process liquid from the upstream side of the filter unit and thereby allows the process liquid to permeate through the filter unit.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: November 29, 2016
    Inventors: Hiroshi Marumoto, Koji Takayanagi, Kenji Adachi
  • Patent number: 9486753
    Abstract: An aqueous stream is pumped through a vortex cylinder. The aqueous stream is rotated in a downwardly moving spiral stream within the vortex cylinder at a high downward velocity. The downward velocity of the aqueous stream increases as it flows through a discharge conduit concentrically located within a mixing chamber of the vortex cylinder. An adjustable inlet tube open to atmospheric pressure extends through the vortex chamber and into the discharge conduit. A negative pressure zone is created at the discharge end of the discharge conduit for drawing fluid into the aqueous stream for mixing therewith and dissolving oxygen in the aqueous solution.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: November 8, 2016
    Inventor: Todd Vlasak
  • Patent number: 9442218
    Abstract: A gas trap with a gas analyzer for continuous gas analysis can include a sample chamber, means for agitating and creating a vortex, gas capturing chamber for receiving liberated gas, gas analyzer for providing real-time gas speciation of the liberated gas. A suction pump can pull the liberated fluid, a filtration means can condition the liberated fluid, and an exhaust port can exhaust analyzed fluid. An exhaust line can flow non-analyzed fluid to a drilling fluid storage chamber, drilling fluid stream, or both.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: September 13, 2016
    Inventors: Thomas H. Selman, Matthew J. Jennings, Stephen M. Bergman
  • Patent number: 9266973
    Abstract: Systems and methods for processing biological material utilizing chitosan are provided herein. Methods may include the steps of reducing the pH of an amount of culture to about 5 to 7, incorporating an amount of a chitosan solution into the culture to form a mixture, wherein chitosan in the chitosan solution binds to the biological material; increasing the pH of the culture to about 7 to 10, to flocculate biological material in the culture, concentrating the flocculates, reducing the pH of the concentrated flocculates to about 3 to 5, and separating the recovered chitosan solution from the concentrated biological material.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 23, 2016
    Assignee: Aurora Algae, Inc.
    Inventor: Daniel Fleischer
  • Patent number: 9199861
    Abstract: Methods, systems, and/or apparatuses for treating wastewater produced at a thermoelectric power plant, other industrial plants, and/or other industrial sources are disclosed. The wastewater is directed through a wastewater concentrator including a direct contact adiabatic concentration system. A stream of hot feed gases is directed through the wastewater concentrator. The wastewater concentrator mixes the hot feed gases directly with the wastewater and evaporates water vapor from the wastewater. The wastewater concentrator separates the water vapor from remaining concentrated wastewater. A contained air-water interface liquid evaporator may be arranged to pre-process the wastewater before being treated by the wastewater concentrator.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: December 1, 2015
    Inventors: Bernard F. Duesel, Jr., Craig Clerkin
  • Patent number: 9095786
    Abstract: A process wherein a combination of two separation principles are combined into one space saving machine with portability to separate two distinct and different fluids one lighter in specific gravity than the other, including the steps of primary separation of fluids allowing for free and suspended solids along with free oil and grease to be removed in the primary separation chamber; utilizing parallel corrugated plates in the separation defining the distance of rise for a given oil droplet based on Stokes Law to remove the remaining large droplets of free oil and solids; and providing an induced gas flotation process which provides a finely dispersed bubble in the liquid to accelerate the lift necessary for separation of fine oil droplets, emulsified oil droplet, and suspended solids to meet a government discharge regulation. This combined technique can be configured in a single vessel without pumps or other methods of liquid movement.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: August 4, 2015
    Inventor: Frank A. Richerand
  • Publication number: 20150096946
    Abstract: Separator apparatus and method for treatment of a contaminated liquid by injecting air/gas to lower the specific gravity of the contaminated liquid by at least 20% and rotating the contaminated liquid to separate contaminants by centrifugal forces. The separator includes a swirl chamber defining a longitudinal axis; at least one injector for, in use, introducing: (i) liquid entrained with air/gas; (ii) air/gas-entrained liquid; or (iii) air/gas, into the swirl chamber; a first outlet located at or near the operative bottom of the swirl chamber for, in use, removing sludge from the swirl chamber; a second outlet located operatively above the first outlet for, in use, removing liquid from the swirl chamber; circulating means to, in use, circulate liquid in the swirl chamber; and an elongate body that extends from or near the operative top of the swirl chamber, along the longitudinal axis of the swirl chamber, beyond the level of the at least one injector.
    Type: Application
    Filed: April 30, 2013
    Publication date: April 9, 2015
    Inventor: Barry Ross DUNMAN
  • Publication number: 20150090649
    Abstract: A water recycling unit for use with a reservoir of water, comprising: a water tank; a water inlet on said tank; and a water outlet on said tank for connection to said reservoir of water, the water inlet being adapted to receive water from the reservoir of water into said water tank, and the water outlet being adapted to supply water to said reservoir, wherein the water outlet is located at a top of said water tank and the water inlet is located below said water outlet, wherein the water tank comprises a settling arrangement and the unit comprises a coagulant delivery means either at or before said water inlet.
    Type: Application
    Filed: March 19, 2013
    Publication date: April 2, 2015
    Inventor: Dean William Crompton
  • Patent number: 8980092
    Abstract: A system and method includes an aeration subsystem that excites enzymes in the liquid waste passing through the septic system. The aeration subsystem includes a compressor section that compresses the liquid waste. The method includes mixing enzymes into the fluid waste material, compressing the fluid waste material with the compressor, injecting air into the compressed fluid waste material, and determining whether the fluid waste material is at a desired cleanliness, and if not, recirculating the fluid waste material through the compressor.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 17, 2015
    Inventors: Kenneth J. Kistner, Carolyn R. Kistner
  • Patent number: 8974662
    Abstract: An apparatus for and method of filtering hydrocarbon contaminated water, which is used in a system requiring a pump to lift low lying hydrocarbon contaminated liquids from said pump through a filtration system which lifts and completely filters all debris and hydrocarbons from said liquid.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: March 10, 2015
    Inventor: William J Gannon
  • Patent number: 8968573
    Abstract: Method for cleaning hydraulic liquid in a industrial truck, wherein said industrial truck is an electrically powered industrial truck having a battery as an energy source with a hydraulic system comprising, a hydraulic pump, a hydraulic reservoir, and a return pipe to the hydraulic reservoir with a return filter, wherein the method comprises the steps of, the hydraulic pump is activated for hydraulic activity, the hydraulic pump pumps the liquid for the hydraulic activity and in relation to this return flow through the return filter to the hydraulic reservoir occurs, the hydraulic pump can be activated by means comprised in the industrial truck, when hydraulic activity is not present, by that achieving a circulation to the hydraulic reservoir through the return filter such that sufficient filtration of the hydraulic liquid is reached, further a time Tb for circulation without hydraulic activity can be accumulated and/or a sensor for determining the quality of the hydraulic oil can be arranged in the industria
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: March 3, 2015
    Assignee: BT Products AB
    Inventor: Joakim Barnstrom
  • Patent number: 8968571
    Abstract: A gas flotation separator for use in horizontal tanks, such as those used for oil storage on board Floating Production Storage and Off-loading (FPSO) vessels, includes dividing the tank into a plurality of chambers operating in series. Prior to entering each chamber, the contaminated aqueous phase is mixed with a stream containing gas bubbles to aid in flocculation and flotation of the immiscible phase contaminant. The gas bubble recycle stream can be generated by injecting a controlled rate of a pressurized gas into a liquid stream of the clean produced water in a process external to the tank or by induction of a gas phase internal to the tank. The mixture flows into the first chamber and impinges on an angled inlet water weir. A portion of the immiscible phase and the gas phase rises to the top of the chamber while the remaining immiscible contaminants flow downward with the aqueous phase to the bottom of the chamber.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 3, 2015
    Assignee: Exterran Holdings, Inc.
    Inventors: Douglas W. Lee, Nicholas Owens
  • Patent number: 8961795
    Abstract: The invention relates to an apparatus and method for removing molybdenum and other possible impurities from an organic copper-containing extraction solution in connection with the liquid-liquid extraction related to copper recovery. The removal of impurities occurs in one or several removal units built into the organic extraction solution storage tank.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 24, 2015
    Assignee: Outotec Oyj
    Inventors: Hannu Laitala, Erkki Paatero, Bror Nyman, Eero Ekman