Including Rehabilitating Or Regenerating Exchange Material Or Sorbent Patents (Class 210/670)
  • Patent number: 10294126
    Abstract: A method for removing chromium from a water source can include delivering source water having a hexavalent chromium oxyanion into contact with an ion exchange resin to exchange the hexavalent chromium oxyanion for an anion and convert the source water to treated water, discharging the treated water, rinsing the ion exchange resin with a brine solution to remove the hexavalent chromium oxyanion from the ion exchange resin, converting the hexavalent chromium oxyanion to a trivalent chromium cation, binding the trivalent chromium cation to a chelating resin, and removing the trivalent chromium cation bound to the chelating resin.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 21, 2019
    Assignee: U.S. Water Services, Inc.
    Inventor: Michael D. Kelly
  • Patent number: 10280082
    Abstract: A method of preparing aqueous hydrogen fluoride is provided. The method includes providing a composition including a cross-linked polymer with absorbed hydrogen fluoride. The cross-linked copolymer includes acrylamide units and acrylic acid salt units. The method further includes contacting the composition with water to release at least a portion of the hydrogen fluoride from the composition to the water to form the aqueous hydrogen fluoride.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 7, 2019
    Assignee: Honeywell International Inc.
    Inventors: Matthew H. Luly, Bernard E. Pointner
  • Patent number: 10173214
    Abstract: Novel water softening products and methods of treating hard water are provided. The products comprise a salt and a metal chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while having dramatically increased efficiencies over prior art products.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: January 8, 2019
    Assignee: Compass Minerals America Inc.
    Inventors: Geoffrey A. Brown, Kristopher Lee Shelite, Darlene R. Linscott, Jerry L. Poe
  • Patent number: 10167207
    Abstract: An apparatus for producing reducing water that maintains a neutral range of pH and exhibits superior reducing force. The apparatus for producing reducing water includes an electrolytic bath including a cathode chamber provided with a cathode, an anode chamber provided with an anode, and an intermediate chamber interposed between the cathode chamber and the anode chamber, wherein the cathode chamber and the intermediate chamber are provided with an inlet through which water is supplied, and an outlet through which water is discharged, a cation exchange membrane is provided between the cathode chamber and the intermediate chamber, and the intermediate chamber includes a cation exchange resin that dissociates hydrogen ions when the cation exchange resin reacts with water.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Suk Kwak, Young Chul Ko, Young Uk Yun, Tae Gyu Kim, Chang Bae Lim
  • Patent number: 10048233
    Abstract: An apparatus for detecting analytes in a liquid sample may include an elongated primary channel through which an ionic species flows, the primary channel extending through a primary channel member, a first regenerant channel through which a regenerant flows, the first regenerant channel extending adjacent to the primary channel and being formed in a first block, a first charged barrier having exchangeable ions capable of passing ions of only one charge, positive or negative, and of blocking bulk liquid flow, the first charged barrier disposed between the primary channel member and the first block for separating the primary channel from the first regenerant channel, and a first sealing member disposed between the first charged barrier and the first block defining the first regenerant channel.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: August 14, 2018
    Assignee: DIONEX CORPORATION
    Inventors: Kannan Srinivasan, Glenn M. Kuse, Rong Lin, Sheetal Bhardwaj
  • Patent number: 10041348
    Abstract: An optical computing device and method utilizing an Integrated Computational Element (“ICE”) to predict and/or mitigate hydrate formation. Fluid is allowed to flow through a first conduit. A sample fluid is separated from the fluid flowing through the first conduit. The sample fluid is allowed to flow through a second conduit. At least one property of the sample fluid corresponding to hydrate formation is detected using at least one Integrated Computational Element (“ICE”) computing device positioned along a tubular. A determination is made as to whether the detected at least one property is adequate for hydrate formation.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 7, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cyrus Irani, Hendrik Kool
  • Patent number: 10010862
    Abstract: Implementations herein relate to a method for extraction of phthalates using hydrophilic magnetic resins with high specific surface areas. The implementations relate to a technical field of preparation of resins for fast enrichment and separation of trace organics in water. By adding magnetic particles, precursor resins may be prepared using divinylbenzene, vinyl benzoate and glycidyl methacrylate copolymerization ester. After the cross-linking reaction, surface areas of the resins are increased and hydrolysis of the ester group in alkaline solution may be implemented to obtain high specific surface magnetic resins rich in hydroxyl groups. The resins have higher adsorptive capacity and selectivity to adsorb phthalates in water samples. Rapid extraction may be implemented using magnetic solid phase extraction rod to achieve enrichment and separation of phthalates in a large amount of water samples.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: July 3, 2018
    Assignees: NANJING UNIVERSITY, Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering
    Inventors: Qing Zhou, Mancheng Zhang, Aimin Li, Chendong Shuang, Mengqiao Wang, Wei Wang, Congjian Huang, Jingyi Jiang, Haibo Li
  • Patent number: 10011779
    Abstract: The present invention provides an adsorbent and a method for desulfurization of gasoline. The adsorbent is obtained by loading active metal component on a composite carrier comprising zeolite and active carbon subjected to alkali treatment respectively, the active metal is selected from one or more elements of IA, IIA, VIII, IB, IIB and VIB groups in the periodic table. This method uses the adsorbent to conduct gasoline adsorption desulfurization, which especially cuts the gasoline into a light and a heavy gasoline fraction firstly, then the light fraction is subjected to adsorption desulfurization using the adsorbent, and the heavy fraction is subjected to selective hydrodesulfurization, a cutting temperature of the light and the heavy gasoline fraction is 70-110° C. The adsorbent has a large sulfur adsorption, a long service life, and simply to be regenerated; the method can realize deep desulfurization of gasoline, and has a less octane number loss.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 3, 2018
    Assignee: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Liang Zhao, Jinsen Gao, Chunming Xu, Tianzhen Hao, Xiaona Han
  • Patent number: 9963360
    Abstract: Processes for treating aqueous solutions to remove dissolved selenium species, for example in the presence of an excess of sulphate anions, which include the use of strongly basic anion exchange resins, or co-precipitation and adsorption of the selenate (and selenite) with mixed ferrous and ferric iron, or combinations thereof. Co-precipitation and adsorption of selenate may take place in an electrolytic cell in the presence of ferrous and/or ferric iron.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 8, 2018
    Assignee: BQE WATER INC.
    Inventors: David Kratochvil, Farzad Mohammadi, Patrick Littlejohn, David Sanguinetti
  • Patent number: 9902626
    Abstract: A method for removing nitrate ions from a solution is presented. The method includes providing a polymer comprising a protonated amine moiety and an anion derived from an acid having a pKa value greater than about 1. The method further includes contacting the polymer with the solution to bind at least a portion of the nitrate ions in the solution with the polymer, and form a polymer-nitrate complex. The method furthermore includes separating at least a portion of the polymer-nitrate complex from the solution.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 27, 2018
    Assignee: General Electric Company
    Inventors: Hongchen Dong, Larry Neil Lewis, Stephen Robert Vasconcellos
  • Patent number: 9894914
    Abstract: Protein concentrates and protein isolates, in addition to processes for the production of protein concentrates hydrolyzates thereof and protein isolates, are disclosed. In particular, the disclosure relates to a process for removing fiber from an oilseed meal, comprising: i) mixing an oilseed meal with a blending solvent, optionally water, saline solution, polysaccharide solution or protein containing solution, to form a mixture; ii) optionally adjusting the pH of the protein slurry to a pH of about 2 to about 10; iii) separating the mixture to form a protein slurry comprising soluble and insoluble proteins and an insoluble fiber fraction, and iv) hydrolyzing the insoluble proteins.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: February 20, 2018
    Assignee: SIEBTE PMI VERWALTUNGS GMBH
    Inventor: Qingnong Nelson Tang
  • Patent number: 9840678
    Abstract: Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 12, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Marc-Andre Poirier, Alexander S. Lang
  • Patent number: 9818920
    Abstract: A non-hermetically sealed LED system containing an active composition having an amount between 0.06 and 2.5 mg per cm2 of the system optical window area is described. The active composition contains an active material in powder form, wherein at least 75 wt % of the active material is chosen from one or more of active carbons, silver, copper, zinc, copper oxide, zinc oxide, calcium oxide, and silver oxide.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 14, 2017
    Assignee: SAES GETTERS S.P.A.
    Inventors: Calogero Sciascia, Alessio Corazza
  • Patent number: 9803143
    Abstract: The present invention provides a method which can efficiently adsorb and remove ionic mercury and/or organic mercury contained in a hydrocarbon oil for a long period of time. The method involves bringing the hydrocarbon oil into contact with an adsorbent containing a layered silicate mineral having an interlayer charge of 0 or an interlayer charge of greater than 0 to 0.6 or less.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: October 31, 2017
    Assignee: NX Nippon Oil & Energy Corporation
    Inventor: Masamichi Minatoya
  • Patent number: 9675960
    Abstract: The present invention refers to a method for binding a polycarboxylic acid to a solid phase. Further, the invention refers to a solid phase having a polycarboxylic acid immobilized thereto and methods of using the solid phase, e.g. for purifying His-tagged recombinant polypeptides.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: June 13, 2017
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Dirk Goerlich, Steffen Frey
  • Patent number: 9669400
    Abstract: The present invention provides a technique which allows stable use of an ion-exchange resin for removing boron impurities over a long period of time in the purification step of a silane compound or a chlorosilane compound. In the present invention, a weakly basic ion-exchange resin used for the purification of a silane compound and a chlorosilane compound is cleaned with a gas containing hydrogen chloride. When this cleaning treatment is used for the initial activation of the weakly basic ion-exchange resin, a higher impurity-adsorbing capacity can be obtained. Further, use of the cleaning treatment for the regeneration of the weakly basic ion-exchange resin allows stable use of the ion-exchange resin for a long time. This allows reduction in the amount of the resin used in a long-term operation and reduction in the cost of used resin disposal.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: June 6, 2017
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masahiko Ishida, Hiroshi Saito, Atsushi Yoshida
  • Patent number: 9556116
    Abstract: Disclosed is a chromatographic process complex for the refining of krill oil extract including desalting, removal of impurities such as trimethylamine oxide (TMAO), and the production of krill oil products including desalted krill oil extract, polar lipid products having polar lipid contents greater than 50 wt-% on a dry or solvent free basis, neutral lipid streams for biodiesel production and astaxanthin. The refinery includes a continuous desalting zone, a fixed bed polar lipid extraction zone to adsorb neutral lipids and astaxanthin to provide a polar lipid extract stream comprising solvent and polar lipids and being essentially free of neutral lipids and astaxanthin, and an astaxanthin separation zone to recover essentially pure astaxanthin and provide a neutral lipid stream. The enriched products of the krill oil refinery are essentially free of TMAO and salt and provide products which can be used as dietary supplements and as medicinal additives.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: January 31, 2017
    Assignee: OROCHEM Technologies, Inc.
    Inventors: Anil R. Oroskar, Asha A. Oroskar, Alexander B. Smetana, Slobodan Milasinovic, Xuejun Zang
  • Patent number: 9527757
    Abstract: A supercapacitor desalination cell comprises a first electrode, a second electrode, a spacer disposed between the first and second electrodes, and a monovalent ion selective layer disposed on at least one of the first and second electrodes. A supercapacitor desalination device and a method for desalination of a liquid are further presented.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 27, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Rihua Xiong, Wei Cai, John Harold Barber, Chengqian Zhang, Russell James MacDonald, Keith James Sims
  • Patent number: 9387434
    Abstract: Disclosed herein are methods for the on-site manufacture of aqueous-based mercury sorbent compositions prepared using a process water. The sorbent compositions may be aqueous-based materials manufactured from a silica containing precursor, a metal species, and a sulfur-based species, in the presence of a process waters, such as a process water from a coal-fired power plant.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: July 12, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Nicholas S. Ergang, Bruce Keiser, Rebecca Stiles, Brett Showalter
  • Patent number: 9242875
    Abstract: In accordance with the present invention, there is provided a calcium removal method capable of reducing operation cost. A solution L2 containing potassium or/and sodium, and calcium is passed through an ion-exchange resin 35 to separate the solution into a solution containing potassium or/and the sodium, and a solution containing calcium. Operation cost can remarkably be decreased since potassium carbonate is not required to remove calcium as before. Timing for changing a calcium-containing water L3 and a salt water L4 discharged from the ion-exchange resin can be performed based on at least one measurement result selected from the group consisting of: a calcium or chlorine concentration; electrical conductivity; and pH of a fluid which is discharged from said ion-exchange resin. The solution may be a filtrate L1 that is obtained by washing a chlorine bypass dust D generated in a cement burning process, or a leachate W of a final disposal site 50.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: January 26, 2016
    Assignee: Taiheiyo Cement Corporation
    Inventors: Noritoshi Tamura, Takayuki Suzuki, Hirokazu Otani
  • Patent number: 9199219
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: December 1, 2015
    Assignee: NIPPON FILCON CO., LIMITED
    Inventors: Yoshinori Inoue, Mitsuru Saito, Hideyuki Yanai, Waka Kamichatani
  • Patent number: 9174194
    Abstract: A metal adsorbent which can adsorb a wide variety of metals, can conform to various uses, and adsorbs metals in large amounts. Metal adsorbents in various forms, which have the property of highly efficiently adsorbing metals, are produced by (a) a method in which a polyamine polymer is chemically bonded and immobilized to a porous support, (b) a method in which a polyamine polymer is blended into a solution of a raw material for fibers and the mixture is formed into fibers by wet-spinning or dry spinning, and (c) a method in which a polyamine polymer is blended into a solution of a film-forming polymer and the mixture is formed into a film by a method of film formation from solution.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: November 3, 2015
    Assignee: NIPPON FILCON CO., LIMITED
    Inventors: Yoshinori Inoue, Mitsuru Saito, Hideyuki Yanai, Waka Kamichatani
  • Patent number: 9063045
    Abstract: A method for pretreating and extracting a liquid sample by sorbing an aqueous liquid sample, including an organic analyte and an acid or a base, in a solid sorbent material, and at least partially neutralizing the acid or base by reaction with neutralizing ions retained on a support surface, and contacting the liquid sample-sorbed sorbent material at elevated temperature and pressure with an organic solvent to extract the analyte into said solvent, preferably in a vessel having an extraction chamber with a zirconium metal interior surface.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: June 23, 2015
    Assignee: Dionex Corporation
    Inventors: Kannan Srinivasan, Bruce Richter, Christopher A. Pohl, Brett Murphy, Brian Dorich, SM Rahmat Ullah
  • Publication number: 20150136706
    Abstract: A method of removing chromium from water using a weak base anion exchange resin at a pH above about 5 includes the step of periodically reducing a flow of the water through the ion exchange resin for a rest period, such that a secondary mechanism of chromium removal predominates, wherein chromium ions are removed from the weak base anion exchange groups and precipitated inside the ion exchange resin. In an alternative embodiment, rather than resting, the ion exchange resin is periodically conditioned with an acid so as to enhance the secondary mechanism.
    Type: Application
    Filed: November 16, 2013
    Publication date: May 21, 2015
    Inventors: Michael C. GOTTLIEB, Peter S. MEYERS
  • Patent number: 9028590
    Abstract: A process for the reduction of carbon dioxide and carbonyl sulfide from various types of gas emitting sources containing carbon dioxide and/or gas or liquid emitting sources containing carbonyl sulfide, using ion exchange resin.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 12, 2015
    Assignees: LANXESS Deutschland GmbH, LANXESS Sybron Chemicals, Inc.
    Inventors: Anthony P. Tirio, Rudolf Wagner
  • Publication number: 20150122734
    Abstract: A method of separating one or more valuable metal cations from an ionic solution by (a) contacting the ionic solution with an activated photoisomerizable host molecule containing a photoisomerizable moiety and a host moiety, where the photoisomerizable moiety has first and second states, and where the host moiety has a greater affinity for a metal cation when the photoisomerizable moiety is in the first state (active binding state) than when the photoisomerizable moiety is in the second state (release state), so that an ion-host molecule association is formed, and (b) separating the ion-host molecule association from the ionic solution. Also disclosed are photoisomerizable host molecules, a method of recovering valuable metals from a waste stream using the photoisomerizable host molecules, and an apparatus comprising a photoisomerizable host molecule attached to a support.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 7, 2015
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Richard E. Riman, Brook Porter
  • Publication number: 20150114908
    Abstract: In accordance with one embodiment, a process is described for a water treatment process in which water produced from a fuel production process is treated with recycled biochar. In accordance with one aspect, process water is passed through activated carbon generated by the biomass pyrolysis and gasification. In accordance with another aspect, the process water is treated to expel gaseous compounds within the process water. In this manner both inorganics, light organics and heavy organics can be removed from the process water. No fermentation is involved.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: COOL PLANET ENERGY SYSTEMS, INC.
    Inventors: Vern S. TRAXLER, Timothy Alan THOMPSON, Paul FAUST, Wilson HAGO
  • Publication number: 20150096940
    Abstract: The present invention relates to water treatment, in particular to a process for the removal of contaminants in a raw water source where the contaminants consist of organic species and inorganic species.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 9, 2015
    Inventors: Miguel Salvador Arias-Paic, Kelly Bryan Mccurry
  • Publication number: 20150090663
    Abstract: A method for fluid treatment that provides variable or alternative regeneration cycles within the same fluid treatment device. The duration of all stages of the regeneration cycle can be adjusted depending upon the amount of fluid treated so that regenerant resources such as water are not underutilized and waste is not discharged unnecessarily into the environment. Additionally or alternatively, a regeneration sequence may include a fluid release sequence in which a fluid is released from a water treatment tank by successive linear movement of a piston in a valve assembly.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 2, 2015
    Applicant: WATER-RIGHT, INC.
    Inventors: KURT GRUETT, GUY GRUETT, GREGORY C. GRUETT
  • Patent number: 8993643
    Abstract: Methods for producing or regenerating an iodinated anion exchange resin are presented. The methods include treating an iodide loaded anionic resin with an aqueous solution comprising an in situ formed I2 to produce the iodinated resin. The iodinated resins show reduced and stable levels of iodine elution compared to resins produced by conventional methods. Methods and systems for purifying water are also presented.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: March 31, 2015
    Assignee: Water Security Corporation
    Inventors: Sivarooban Theivendran, Terryll Riley Smith, James J. Kubinec
  • Patent number: 8980962
    Abstract: Methods for producing or regenerating an iodinated resin are presented. The methods include converting iodide residues on a surface of and in pores of an iodide loaded anion exchange resin to iodine and iodine intermediates using a source of active halogen to form an iodinated resin having iodine and iodine intermediate residues on the surface of and in the pores of the iodinated resin. The iodinated resins show reduced and stable levels of iodine elution compared to conventional iodinated anion exchange resins and may utilizes less iodine raw materials during the manufacturing process. The iodinated resin can also act as an end-of life indicator in a water purification system that incorporates the iodinated resin to reduce microbial, including bacterial and viral, contamination in drinking water sources. Methods and systems for purifying water are also presented.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 17, 2015
    Assignee: Water Security Corporation
    Inventors: Sivarooban Theivendran, Terryll Riley Smith, Marian Pettibone
  • Patent number: 8980098
    Abstract: Organic material may be removed from a fluid, such as an aqueous fluid, by contacting the fluid with a surface active porous medium. The surface active porous medium includes a bed of substrate particles (e.g. sand), at least a partial coating of nanoparticles on the substrate bed, and a plurality of absorbing particles fixated on the nanoparticles. The absorbing particles may include, but are not necessarily limited to, coal fines, activated carbon, activated charcoal, activated coal and combinations thereof. The surface active porous medium may be regenerated by contacting the surface active porous medium with an acid solution to substantially remove the organic materials therefrom.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: James B. Crews, Tianping Huang
  • Publication number: 20150068565
    Abstract: A water softening apparatus having an improved structure to provide a function of an air brake, a dishwasher including the same and a control method thereof, the water softening apparatus having an air brake assembly and a regeneration tank and configured to soften wash water being supplied from a tub, wherein the air brake assembly including a water supply valve allowing wash water to be introduced therethrough, an ion exchange tank to accommodate an ion exchange resin therein, and a plurality of valves installed on a first path allowing wash water being introduced through the water supply valve to flow toward the ion exchange tank, wherein the regeneration tank is connected to the air brake assembly and accommodates regeneration material configured to purify the ion exchange resin.
    Type: Application
    Filed: August 4, 2014
    Publication date: March 12, 2015
    Applicant: Samsung Electronics, Co., Ltd.
    Inventors: Sang Hoon LEE, Jeong Myeong KIM, Seung Ah JOO
  • Publication number: 20150068280
    Abstract: A device for extraction of at least one analyte contained in a liquid sample, including an extraction and desorption zone of the analyte with a stationary phase as the extraction zone, a liquid supply inlet to the extraction zone, a gas supply inlet to the extraction zone, an evacuation outlet from the extraction zone that will be connected to either a collection tank, or a device for analysis of the analytes, a valve configured to connect the extraction zone to one of the supply inlets, a valve configured to connect the extraction zone to one of the evacuation outlets, a mechanism heating the valve zone such that when the extraction zone is supplied with liquid, evacuation from the extraction zone takes place to the collection tank.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 12, 2015
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
    Inventor: Florence Ricoul
  • Publication number: 20150068291
    Abstract: The micro-solid phase extraction of haloacetic acids is a procedure that extracts haloacetic acids from aqueous solution using iron-modified rice husk silica as the stationary phase or sorbent. Rice husks provide an excellent source of silica. The sorbent is prepared by incinerating the husks to produce a powder that is treated with 1.0 M nitric acid for 24 hours to produce rice husk silica. The silica is washed with base, cetyltrimethylammonium bromide is added, and then titrated with a 10% Fe3+ solution to pH 5, which forms a gel. The gel is aged, filtered, dried, and calcined to produce a nitrate-free iron-modified rice husk sorbent. The sorbent is then packaged in porous, heat-sealed polypropylene membrane envelopes and used for extraction of HAAs from water. The HAA analytes are desorbed by ultrasonication in methanol for analysis and quantification.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: CHANBASHA BASHEER, HAKIMU NSUBUGA
  • Patent number: 8974675
    Abstract: Crystals of [VOBDC](H2BDC)0.71 were synthesized hydrothemally. The guest acid molecules were removed by heating in air to give high quality single crystals of VOBDC. VOBDC was observed to show crystal-to-crystal transformations on absorption of the guest molecules aniline, thiophene and acetone from the liquid phase. Accurate structural data of the guest molecules and framework deformations were obtained from single crystal X-ray data. VOBDC was also shown to absorb selectively thiophene and dimethyl sulphide from methane.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 10, 2015
    Inventors: Allan J. Jacobson, Xiqu Wang, Lumei Liu
  • Patent number: 8974671
    Abstract: Process for the treatment of the aqueous stream coming from the Fischer-Tropsch reaction comprising: feeding the aqueous stream containing the organic by products of the reaction to a distillation or stripping column; separation from the column of an aqueous stream enriched in alcohols having from 1 to 8 carbon atoms and other possible volatile compounds; feeding the aqueous stream containing the organic acids leaving the bottom of the distillation column to an ion exchange step wherein said aqueous stream is put in contact with an anionic exchange resin bed and the production of two outgoing aqueous streams: an aqueous stream (i) enriched in organic acids having from 1 to 8 carbon atoms; a purified aqueous stream (ii) with a low content of organic acids.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 10, 2015
    Assignee: ENI S.p.A.
    Inventors: Roberta Miglio, Renzo Bignazzi
  • Patent number: 8974674
    Abstract: A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 10, 2015
    Assignees: National University Corporation Nagoya University, A.L.M.T. Corp., Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Hideaki Ito, Takeshi Itakura, Yoshiharu Yamamoto, Kazuo Sasaya, Takuya Okuno, Fumiatsu Sato, Syunsuke Yamanaka, Akihiko Ikegaya
  • Publication number: 20150053620
    Abstract: The present invention features compositions and methods for reducing the concentration of an endocrine disrupting agent in an aqueous solution. We describe compositions comprising various polymeric resins. The methods can be used to reduce the concentration of endocrine disrupting agents, including estrogens, perfluorinated compounds and bisphenol A in an aqueous solution.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Rominder P.S. SURI, Dan LIU
  • Patent number: 8961797
    Abstract: A valve assembly for a twin tank-type water treatment system includes and a tank selector valve assembly that includes first and second rotary selector valves driven in concert with another by a reversible electric motor. The motor drives the first and second selector valves between (a) a first position in which an untreated water inlet and a treated water outlet of the valve assembly are coupled to a first resin tank, and a second resin tank is connected to a regeneration valve, and (b) a second position which the untreated water inlet and the treated water outlet of the valve assembly are coupled to the second resin tank, and the first resin tank is connected to a regeneration valve. The rotary valves may be disks that rotate relatively rapidly on a common shaft driven by the electric motor through an arc of 180° or less.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 24, 2015
    Assignee: Clack Corporation
    Inventor: Don Vaughan
  • Patent number: 8961770
    Abstract: Embodiments of the invention provide a method of operating a flow-through capacitor and a related controller for performing the method. The method includes establishing a summed-current capacity of the flow-through capacitor. In an operational cycle, the flow-through capacitor is operated to transfer ions between the pair of electrodes and water. A current is monitored during operation of the flow-through capacitor. This current is integrated over time to calculate a monitored-current value. To determine an end of the operational cycle, the monitored-current value is compared to the summed-current capacity.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 24, 2015
    Assignee: Pentair Residential Filtration, LLC
    Inventors: David J. Averbeck, Rebecca M. Tallon, Brett A. Boedeker
  • Publication number: 20150041394
    Abstract: The present invention relates to a process for purifying water using a hybrid material based on carbon nanotubes and nanoparticles of clay, preferably laponite.
    Type: Application
    Filed: February 28, 2013
    Publication date: February 12, 2015
    Inventors: Maksym Loginov, Mykola Lebovka, Eugene Vorobiev
  • Publication number: 20150031908
    Abstract: Porous metal-organic frameworks (MOFs) and metallated porous MOFs are provided. Also provided are methods of metallating porous MOFs using atomic layer deposition and methods of using the metallated MOFs as catalysts and in remediation applications.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Wojciech Bury, Omar K. Farha, Joseph T. Hupp, Joseph E. Mondloch
  • Publication number: 20150027949
    Abstract: A method for removing nitrate ions from a solution is presented. The method includes providing a polymer comprising a protonated amine moiety and an anion derived from an acid having a pKa value greater than about 1. The method further includes contacting the polymer with the solution to bind at least a portion of the nitrate ions in the solution with the polymer, and form a polymer-nitrate complex. The method furthermore includes separating at least a portion of the polymer-nitrate complex from the solution.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 29, 2015
    Applicant: General Electric Company
    Inventors: Hongchen Dong, Larry Neil Lewis, Stephen Robert Vasconcellos
  • Patent number: 8936726
    Abstract: Contaminants are removed from a quantity of contaminated liquid in a treatment reservoir (2,28) containing a carbon based adsorbent material capable of electrochemical regeneration. The adsorbent material is in the form of a bed supported on a plate (6) at the base of the reservoir. The bed is agitated for a period to distribute the adsorbent material in the liquid and adsorb contaminant therefrom. At the end of the period the agitation ceases, and the bed of adsorbent material is allowed to settle. The adsorbent is then regenerated, during or after settlement, by passing an electric current through the bed to release from the adsorbent gaseous products derived from the contaminant, in bubbles rising through the decontaminated liquid in the reservoir. Various methods of regenerating the adsorbent material are disclosed, as are apparatus in which the method can be applied.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: January 20, 2015
    Assignee: Arvia Technology Limited
    Inventors: Nigel Willis Brown, Edward P. L. Roberts
  • Patent number: 8936727
    Abstract: The systems and processes disclosed herein relate generally to multi bed temperature controlled adsorption for use in the recovery of sorbates that are removed from process streams by adsorption. Multi bed temperature controlled adsorber systems can include three or more temperature controlled adosrbers that operate in parallel. Each temperature controlled adsorber through a series of steps including an adsorption step, a first bed to bed interchange, a regeneration step, and a second bed to bed interchange.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: January 20, 2015
    Assignee: UOP LLC
    Inventors: Stephen R. Dunne, David A. Wegerer
  • Publication number: 20140374351
    Abstract: A process for treating feed water for desalination, the process comprising: (a) removing one or more polyvalent anions from the feed water by feeding the feed water into a bed comprising one or more anion exchange resins under conditions sufficient to exchange the polyvalent ions in the feed water with one or more monovalent anions in the resin; and (b) regenerating the bed by feeding a brine stream into the bed under conditions sufficient to exchange one or more polyvalent anions in the resins with one or more monovalent anions in the brine stream.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 25, 2014
    Applicant: Lehigh University
    Inventors: Arup K. SenGupta, Ryan C. Smith
  • Publication number: 20140374357
    Abstract: Disclosed are processes to treat water having halide ions and organohalides. The process comprises contacting a plant biomass with an alkaline solution to give an alkaline plant biomass, and contacting the alkaline plant biomass with water to give a biomass material. An aqueous sample with organohalides or halide ions is contacted with the biomass material to provide a low halide filtrate and a spent biomass.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Debasis ROY, Suvendu MANNA, Ramkrishna SEN, Basudam ADHIKARI, Prosenjit SAHA
  • Patent number: 8883012
    Abstract: The present invention provides a new water purification method and system using reverse osmosis. In particular, the present invention provides methods and water purification systems using an ion exchange resin and absorbent media for pretreatment of water being fed to a reverse osmosis treatment system, where the pretreatment reduces fouling of, or deposits or chemical attack on the membrane surfaces and passageways. Particularly, a macroporous resin having an average pore diameter in the range of 1,000 to 500,000 Angstroms and a crush strength or Chatillon value of at least 24 g/bead (710 ?m bead diameter) is used.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: November 11, 2014
    Assignee: Purolite Corporation
    Inventors: Francis Boodoo, Fabio Chaves De Sousa, James A. Dale, Carmen Mihaela Iesan
  • Publication number: 20140326672
    Abstract: Described herein is a melamine-aldehyde polymer, wherein the polymer has a pore volume in the range of about 1.5 to 5 cm3/g.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 6, 2014
    Inventors: Yugen Zhang, Mei Xuan Tan, Jackie Y. Ying