By Chemical Reduction Patents (Class 210/757)
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Publication number: 20120312746Abstract: A method or process for removing perchlorate ions from water includes mixing water containing perchlorate ions with a reducing agent such that the perchlorate ions and the reducing agent undergo an oxidation-reduction reaction. During the oxidation-reduction reaction, perchlorate ions are reduced to chloride ions and the reducing agent is oxidized. The oxidized reducing agent is separated from the water containing chloride ions and the oxidized reducing agent is regenerated and reused in the reduction of the perchlorate ions.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORTInventors: Kashi Banerjee, Charles D. Blumenschein
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Publication number: 20120285899Abstract: The present invention provides a nanopolymetallic reducing agent filler comprising 20%-70% iron powder, 10%-30% tourmaline power, 2%-15% copper power, 3%-10% bamboo charcoal powder, 2%-15% kaoline, 2%-15% magnesite powder, 2%-15% pyrolusite powder, and 10%-30% zeolite powder. All percentages described above are by weight. A process of forming the nanopolymetallic reducing agent filler is also provided, including grinding and ball milling raw materials of each component respectively into powder particles of 10 nm-100 ?m, which are then mixed uniformly by weight percentage and granulated to form a granular mixture, and sintering the granular mixture at high temperature or cold pressing it into a granular filler.Type: ApplicationFiled: September 7, 2011Publication date: November 15, 2012Inventors: Liang Shuhong, Wang Meiling
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Publication number: 20120248372Abstract: Systems containing imidazoles or blends of imidazoles and amines are described herein. Methods of their preparation and use are also described herein. The methods of using the systems include the reduction of volatile compounds from gas streams and liquid streams.Type: ApplicationFiled: March 27, 2012Publication date: October 4, 2012Applicant: BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMAInventor: Jason E. Bara
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Patent number: 8277726Abstract: A steam generation system comprises: an oxygenated water treatment (OWT) sub-system configured to generate water having oxidizing chemistry; a steam generation sub-system configured to convert the water having oxidizing chemistry into steam having oxidizing chemistry; an attemperator or other injection device or devices configured to add an oxygen scavenger to the steam having oxidizing chemistry to generate steam having less oxidizing or reducing chemistry; and a condenser configured to condense the steam having less oxidizing or reducing chemistry into condensed water.Type: GrantFiled: March 17, 2010Date of Patent: October 2, 2012Inventors: Steven C. Kung, Dennis K. McDonald
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Publication number: 20120211440Abstract: A method for treating ballast water with sulfurous acid to kill invasive species and remove oxygen from the ballast water to preserve hulls from rusting.Type: ApplicationFiled: February 23, 2011Publication date: August 23, 2012Applicant: Earth Renaissance Technologies, LLCInventors: Terry R. Gong, Marcus G. Theodore
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Patent number: 8226894Abstract: An ultrasonic treatment apparatus treats a part of the body without use of a medical agent. The ultrasonic treatment apparatus includes a treatment vessel, an ultrasonic element, an ultrasonic element driving circuit, and an operation section. The treatment vessel holds a medium and the ultrasonic element generates ultrasonic waves through the medium to decompose the water in the medium to thereby generate hydroxyl radicals. The ultrasonic element driving circuit drives the ultrasonic element. The operation section is used to set sterilization conditions determined by the amount of hydroxyl radicals generated by the ultrasonic waves.Type: GrantFiled: December 19, 2007Date of Patent: July 24, 2012Inventors: Haru Miyake, Takamura Miyake
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Publication number: 20120111802Abstract: An activated carbon cloth-supported bimetallic Pd—Cu nanocatalyst is disclosed comprising about 1 wt % Pd and about 0.35-0.45 wt % Cu and having a surface Cu/Pd metal ratio of about 8-10 m2/m2. The nanocatalyst is capable of removing nitrate and/or nitrite from wastewater with a high selectivity to nitrogen.Type: ApplicationFiled: May 4, 2010Publication date: May 10, 2012Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.Inventors: Moshe Sheintuch, Uri Matatov-Meytal
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Publication number: 20120108473Abstract: A process for treatment of produced water obtained from an enhanced oil recovery process from a reservoir, said water containing at least one water-soluble polymer, wherein: an oxidising agent is injected into produced water in a quantity such that the viscosity of said water is reduced to a value below 2 cps, advantageously of the order of 1.5 cps, in a short period from the injection of the oxidising agent, a reducing agent is then injected in the necessary quantity to neutralise all the resulting excess oxidising agent.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicant: S.P.C.M. SAInventors: René PICH, Ludwig GIL
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Patent number: 8153057Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed one or more active chemical species into the hot water system.Type: GrantFiled: July 24, 2007Date of Patent: April 10, 2012Assignee: Nalco CompanyInventors: Peter D. Hicks, David A. Grattan
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Patent number: 8147694Abstract: The induction of reducing conditions and stimulating anaerobic process through the addition of species of seaweed (Dulse, Nori, Ascophyllum nodosum, and Kelp) to accomplish accelerated dechlorinization of soil and groundwater contaminated with chlorinated solvents and heavy metals.Type: GrantFiled: September 17, 2009Date of Patent: April 3, 2012Assignee: Innovative Environmental Technologies, Inc.Inventors: Michael Scalzi, Jessica McGill
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Patent number: 8142665Abstract: In a method of fast reduction of all iodine species, exclusively, including all volatile iodine species, into non-volatile iodide ions in an aqueous solution, a reducing agent and a co-agent with phase transfer catalyst—ion-exchanger property are simultaneously added to the aqueous solution and concurrently, thermal and radiolytic oxidation of iodide ions, otherwise yielding to revolatilzation, is suppressed producing an efficient retention of all iodide species in the aqueous solution.Type: GrantFiled: August 17, 2006Date of Patent: March 27, 2012Assignee: Paul Scherrer InstitutInventors: Horst Bruchertseifer, Salih Guentay
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Patent number: 8101087Abstract: A process and apparatus for removing elements is described herein.Type: GrantFiled: October 24, 2008Date of Patent: January 24, 2012Assignee: Global Materials Technologies, Inc.Inventors: Terrence P. Kane, Raymond Joseph Lovett, Steven Alan Bouse
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Publication number: 20120006742Abstract: A sulfurous acid/alkalinization pre-treatment method for wastewaters to condition and remove a number of chemicals/pharmaceuticals and heavy metals before the recovered treated influent undergoes further biological reduction via anaerobic and aerobic digestion.Type: ApplicationFiled: July 9, 2010Publication date: January 12, 2012Applicant: Earth Renaissance Technologies, LLCInventor: Marcus G. Theodore
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Publication number: 20110309023Abstract: A process and apparatus for removing elements is described herein.Type: ApplicationFiled: May 18, 2011Publication date: December 22, 2011Applicant: Global Materials Technologies, Inc.Inventors: Terrence P. Kane, Raymond Joseph Lovett
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Publication number: 20110309033Abstract: The invention relates to a method for treating wastewater containing nitroaromatics and nitrohydroxyaromatics, as for example arises in the production of nitroaromatics or in the production of nitrohydroxyaromatics, by a two-stage method consisting of pre-reduction and wet oxidation.Type: ApplicationFiled: January 27, 2010Publication date: December 22, 2011Applicant: BAYER MATERIALSCIENCE AGInventors: Andreas Karl Rausch, Christoph Blöcher
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Publication number: 20110309017Abstract: Embodiments are provided for removing a variety of contaminants using both rare earth and non-rare earth-containing treatment elements.Type: ApplicationFiled: April 13, 2011Publication date: December 22, 2011Applicant: MOLYCORP MINERALS, LLCInventors: Carl R. Hassler, John L. Burba, III, Charles F. Whitehead, Joseph Lupo, Timothy L. Oriard
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Patent number: 8052877Abstract: A process for the removal of azide ions from aqueous liquids at alkaline pH by alkali-soluble metals and catalyst or by hydrogen and catalyst.Type: GrantFiled: December 22, 2009Date of Patent: November 8, 2011Assignee: Sanofi-AventisInventors: Antal Tungler, Gabor Bajnoczy, Erzsebet Odor
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Publication number: 20110259835Abstract: A method for reducing an isocyanuric acid level concentration in swimming pool water to prevent chlorine lock. The method comprises the steps of adding an effective amount of sodium hydroxide combined with an antimicrobial agent to the pool water and reacting the sodium hydroxide with the isocyanuric acid therein to reduce the isocyanuric acid concentration to a level of between about 30 to 50 PPM. The antimicrobial agent reduces the amount of microorganisms that have accumulated in the pool water until the chlorine is released from its “locked-up” condition.Type: ApplicationFiled: April 26, 2010Publication date: October 27, 2011Inventor: David Hodak
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Patent number: 7998352Abstract: Disclosed is a method of inhibiting and/or removing deposits from internal surfaces in a hot water system. The method includes controlling a real-time oxidation-reduction potential in a hot water system to alter the dynamic between deposit constituents and the bulk water of the system to inhibit deposition or initiate deposit removal. The method is equally effective for a system undergoing a wet layup sequence or in an online operational system. The invention further includes a multi-component deposit inhibition and/or removal device, including a receiver, a processor, and a transmitter that work in unison to alter the system dynamics to inhibit or remove deposits.Type: GrantFiled: September 10, 2007Date of Patent: August 16, 2011Assignee: Nalco CompanyInventors: Peter D. Hicks, David A. Grattan
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Patent number: 7964093Abstract: Methods and apparatus relate to treating fluid to at least reduce selenium content within the fluid, which may be an aqueous liquid and form a feed stream. The treating removes selenium that may be present in compounds, such as selenocyanate, from the feed stream based on adsorption from contact of the fluid with a sorbent. Flowing a gaseous hydrogen sulfide and sulfur dioxide containing stream over a support, such as activated carbon, may provide the sorbent impregnated with sulfur and utilized in the treating of the fluid.Type: GrantFiled: February 18, 2010Date of Patent: June 21, 2011Assignee: ConocoPhillips CompanyInventors: Mark A. Hughes, Roland Schmidt, Jon M. Nelson, Joseph B. Cross
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Patent number: 7951298Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system undergoing a wet layup sequence to inhibit corrosion in the hot water system. The method includes separating the wet layup sequence into a plurality of phases. Each phase is either short-term or long-term and a subset of the short-term phases is optionally transitional. The method further includes defining one or more zones in the hot water system. At least one of the defined zones is selected for each phase and one or more of the selected zones include at least one ORP probe operable to measure the real-time ORP and communicate with a controller. The ORP probe(s) either intermittently or continuously measure the real-time ORP at operating temperature and pressure at one or more of the selected zones in one or more of the phases and transmit the measured real-time ORP to the controller. The real-time ORP is assessed to determine whether it conforms to an ORP setting for that phase.Type: GrantFiled: September 10, 2007Date of Patent: May 31, 2011Assignee: Nalco CompanyInventors: Peter D. Hicks, David A. Grattan
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Publication number: 20110120958Abstract: A method for treating wastewater treats wastewater. In an embodiment, the method for treating wastewater includes treating wastewater comprising a chemical oxygen demand. The method includes dissolving an iron compound in the wastewater. The method also includes adjusting the pH of the wastewater to reduce the chemical oxygen demand of the wastewater.Type: ApplicationFiled: November 22, 2009Publication date: May 26, 2011Applicant: UNITED LABORATORIES INTERNATIONAL, LLCInventor: Jack G. Frost
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Patent number: 7931815Abstract: A method of using a sulfided iron reagent to remove oxygen from gaseous and liquid fluid streams such as natural gas, light hydrocarbon streams, crude oil, acid gas mixtures, carbon dioxide gas and liquid streams, anaerobic gas, landfill gas, geothermal gases and liquids, and the like is disclosed. In a preferred embodiment, the reagent is made by mixing, agglomerating and shaping finely powdered ferrous carbonate, preferably siderite which are used to remove oxygen from a hydrocarbon or carbon dioxide stream that also contains sulfur compounds such as hydrogen sulfide.Type: GrantFiled: October 30, 2007Date of Patent: April 26, 2011Assignee: New Technology Ventures, INc.Inventors: Floyd E. Farha, James A. Kane
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Patent number: 7887709Abstract: A method for the treatment of a contaminated medium including the steps of introducing hydrogen into the contaminated medium, adding micron-sized metal catalyst particles to the contaminated medium, reacting the contaminated medium with the micron-sized metal catalyst and substantially retaining the catalyst particles in the contaminated medium. In another aspect, a system for the ex situ treatment of contaminated fluid including a vessel configured to receive the contaminated fluid, micron-sized metal catalyst particles located in the vessel, a hydrogen source positioned for delivering hydrogen to the contaminated fluid, and a membrane filter positioned to prevent the metal catalyst from eluting from the vessel.Type: GrantFiled: November 30, 2005Date of Patent: February 15, 2011Assignee: Shaw Environment & Infrastructure, Inc.Inventors: Charles E. Schaefer, Charles W. Condee
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Patent number: 7879759Abstract: DeNOx catalysts for the reduction of NOx compounds and porous catalyst support materials are provided. The inventive catalysts comprise an active metal catalyst component and mixed TiO2/ZrO2 porous support particles that comprise a) a crystalline phase comprising titanium dioxide and/or a titanium/zirconium mixed oxide, b) an amorphous phase comprising zirconium, and c) a small amount of one or more metal oxide(s) or metalloid oxide(s) deposited on the amorphous outer layer. The inventive catalysts exhibit superior activity and ammonia selectivity.Type: GrantFiled: February 16, 2009Date of Patent: February 1, 2011Inventors: Steve M. Augustine, Guoyi Fu, Mark Watson
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Patent number: 7857981Abstract: A catalyst which, by means of a reduction reaction at ambient temperature, permits the elimination of nitrates and nitrites in waters. The catalyst comprises a combination of a noble metal and a non-noble metal supported on or incorporated into the structure of a support which, in elemental and anhydrous form, has the formula XYMgAl, in which X is at least one noble metal, Y is at least one non-noble metal, Mg is magnesium and Al is aluminum, the Mg and Al preferably forming the structure of a hydrotalcite or a mixed oxide deriving from a hydrotalcite.Type: GrantFiled: August 20, 2008Date of Patent: December 28, 2010Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Politecnica de ValenciaInventors: Avelino Corma Canós, Antonio Eduardo Palomares Gimeno, Jose Gregorio Prato Moreno
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Publication number: 20100314312Abstract: Methods for bioremediation of contaminants in water using soapstock, an acid oil of soapstock, a neutralized acid oil of soapstock or combinations thereof are described. Systems for bioremediation are also disclosed.Type: ApplicationFiled: August 25, 2010Publication date: December 16, 2010Applicants: ARCHER DANIELS MIDLAND COMPANY, JRW BIOREMEDIATION, LLCInventors: Shireen Baseeth, Paul Bloom, Bruce Sebree, Donovan Smith
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Patent number: 7851406Abstract: Disclosed are a nano-sized palladium-doped anion exchange resin catalyst or palladium-doped cation exchange resin catalyst, a preparation method thereof and a method of removing dissolved oxygen in water using the same. The palladium-doped anion exchange resin catalyst exhibits high dissolved oxygen removal efficiency of 99˜99.99%, and the palladium-doped cation exchange resin catalyst exhibits high dissolved oxygen removal efficiency of at least 97%, and further, dissolved oxygen in water can be removed through a catalytic reaction without the use of additional chemicals, thereby discharging no secondary pollutants. This catalyst is environmentally friendly, can be continuously developed, and can prevent the loss of the palladium catalyst, which is expensive, and thus can be efficiently applied to various fields, including semiconductors, power plants, microbial culture, food and pharmaceutical production, and the fermentation industry.Type: GrantFiled: April 18, 2008Date of Patent: December 14, 2010Assignee: Korea Institute of Chemical TechnologyInventors: Kew-Ho Lee, Min-Joung Kim, Yeon Kyung Sung, Chang-Yeol Yoo
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Publication number: 20100310316Abstract: Provided herein are methods of treating a composition. In one embodiment, the method includes contacting a sulfur-based bulk reductant with a composition that includes soil and/or water and further includes one or more oxidized organic and/or inorganic compounds. In another embodiment, the method includes contacting a sulfur-based bulk reductant with a composition that includes soil and/or water and further includes one or more chlorinated organic compounds. In still another embodiment, the method includes contacting a sulfur-based bulk reductant with a composition that includes soil and/or water and further includes one or more chemical warfare agents. Also provided herein are sulfur-based bulk reductants for use in remediation of contaminated soil and/or water.Type: ApplicationFiled: May 9, 2008Publication date: December 9, 2010Inventor: Valentine A. Nzengung
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Patent number: 7833422Abstract: It is to provide a process of treating a selenium-containing liquid which can inexpensively treat the selenium-containing liquid. The formation of selenate is inhibited by adding at least one selected from a group consisting of Ti and Mn into the selenium-containing liquid.Type: GrantFiled: August 18, 2008Date of Patent: November 16, 2010Assignee: Central Research Institute of Electric Power IndustryInventors: Hiroyuki Akiho, Shigeo Ito, Hiromitsu Matsuda
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Publication number: 20100282690Abstract: This invention relates to decontaminating water containing organic compounds by treating the contaminated water by adding solid phase zero valent iron (ZVI) and persulfate to destroy organic contaminants in water.Type: ApplicationFiled: March 28, 2008Publication date: November 11, 2010Applicant: WORCESTER POLYTECHNIC INSTITUTEInventors: Anita R. Padmanabhan, John Bergendahl, Sachin Sharma
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Patent number: 7820061Abstract: The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and I materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by porous metal oxide under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the porous metal oxide at about 150° C., an exothermic reaction produces Stage I material, loose black powders that are stable in dry air. Further heating forms higher stage materials of unknown composition.Type: GrantFiled: July 8, 2009Date of Patent: October 26, 2010Assignees: Signa Chemistry, Inc., Board of Trustees of Michigan State UniversityInventors: Michael Lefenfeld, James L. Dye
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Publication number: 20100266469Abstract: A method and equipment for removing ammonia from effluent, flue or waste fluids that include oxygen. The method includes at least the following stages: Part of the fluid (1) is conveyed to a decomposition/oxidation unit (2) and part of the fluid (1) is conveyed to a by-pass unit (3); part of the fluid (1) including ammonia is oxidized in the decomposition/oxidation unit (2) of ammonia; the fluid (1H) that was oxidized in the decomposition/oxidation unit (2) and the fluid (1) that was conveyed to the by-pass unit are mixed in a mixing unit (4) to form a fluid mixture (1S), and the fluid mixture (1S) is conveyed to a selective reduction unit (5).Type: ApplicationFiled: October 19, 2007Publication date: October 21, 2010Applicant: ECOCAT OYInventors: Teuvo Maunula, Matti Harkonen
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Publication number: 20100243579Abstract: This invention describes a process for producing a nanoscale zero-valent metal, including reduction of a metal ion solution with a dithionite compound, wherein the reduction is carried out under alkaline conditions under substantially an inert atmosphere. A nanoscale zero-valent metal obtainable by this process, and having a new crystalline form, is also described. The nanoscale zero-valent metal produced by the process of the invention is preferably iron, and is advantageously used for the remediation of contaminated water.Type: ApplicationFiled: February 26, 2010Publication date: September 30, 2010Applicant: CRC for Waste Management and Pollution Control LimitedInventors: Andrew FEITZ, Jing GUAN, David WAITE
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Publication number: 20100209323Abstract: DeNOx catalysts for the reduction of NOx compounds and porous catalyst support materials are provided. The inventive catalysts comprise an active metal catalyst component and mixed TiO2/ZrO2 porous support particles that comprise a) a crystalline phase comprising titanium dioxide and/or a titanium/zirconium mixed oxide, b) an amorphous phase comprising zirconium, and c) a small amount of one or more metal oxide(s) or metalloid oxide(s) deposited on the amorphous outer layer. The inventive catalysts exhibit superior activity and ammonia selectivity.Type: ApplicationFiled: February 16, 2009Publication date: August 19, 2010Inventors: STEVE M. AUGUSTINE, GUOYI FU, MARK WATSON
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Patent number: 7776224Abstract: The present invention relates to an apparatus for treating ballast water, the apparatus being capable of treating ballast water so as to meet the ballast water standard established by the IMO exactly at low costs. The treatment apparatus of the present invention comprises a filter (4) that filters sea water to trap aquatic organisms, a bactericide supply apparatus (5) that supplies bactericide to the filtrate sea water, and a venturi tube 7 that introduces the sea water to which the bactericide is added, to produce cavitation in the sea water, thereby diffusing the bactericide and also damaging and destroying aquatic organisms in the sea water.Type: GrantFiled: June 2, 2006Date of Patent: August 17, 2010Assignee: JFE Engineering CorporationInventors: Yukihiko Okamoto, Shigeki Fujiwara, Koji Fuchigami, Keisuke Nakahara, Masakuni Inoko, Sho Ishida
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Publication number: 20100181262Abstract: A process for the removal of azide ions from aqueous liquids at alkaline pH by alkali-soluble metals and catalyst or by hydrogen and catalyst.Type: ApplicationFiled: December 22, 2009Publication date: July 22, 2010Applicant: SANOFI-AVENTISInventors: Antal TUNGLER, Gabor BAJNOCZY, Erzsebet ODOR
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Publication number: 20100158612Abstract: Methods of remediating soil, sediment or water contaminated with organic compounds such as polychlorinated biphenyls or nitro-aromatic compounds are provided which involve combining the soil, sediment or water with a graphitic carbon and a reducing agent. The contaminants are converted to substances having an increased propensity to enter into an aqueous phase and/or undergo further degradation via biological oxidation.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: University of DelawareInventor: Pei C. Chiu
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Publication number: 20100147776Abstract: In one aspect, ozone is quenched from a water stream, such as a drinking water or wastewater stream being treated with ozone, by contacting the stream with magnesium thiosulfate. In another aspect, a method of scrubbing ozone from a gaseous stream comprises contacting the gaseous stream with magnesium thiosulfate. In an alternative embodiment, chlorine is quenched from a water stream by contacting the stream with magnesium thiosulfate or potassium thiosulfate. In yet another aspect, a method of scrubbing chlorine from a gaseous stream comprises contacting the stream with magnesium thiosulfate or potassium thiosulfate. In another embodiment, a thiosulfate, such as magnesium thiosulfate, calcium thiosulfate, potassium thiosulfate, or sodium thiosulfate, is provided on an air filter for scrubbing ozone or chlorine from gaseous streams.Type: ApplicationFiled: February 12, 2010Publication date: June 17, 2010Applicant: TESSENDERLO KERLEY, INC.Inventors: Michael Hojjatie, Dean Abrams
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Publication number: 20100140177Abstract: A fluid processing system comprising a housing (12) and at least one of a first type and at least one of a second type module, (25-28), The first and second modules having different fluid processing characteristics each module comprising a body of wound layers of a sheet material, said body having an inner and an outer peripheral surface, a first and a second end face, a passage (42, 44) extending along the winding axis of said body and in fluid communication with said inner peripheral surface, the passage of one of the first type and one of the second type modules being closed at one end thereof, said sheet material having a plurality of openings formed therein, said openings forming a first and a second type of channels within the wound layers of sheet material of said body, extending in a direction from the inner peripheral surface to the outer peripheral surface, the first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to saType: ApplicationFiled: February 1, 2008Publication date: June 10, 2010Applicant: PALL CORPORATIONInventors: Wolfgang Diemer, Martin Zeiler, Klaus Feifel
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Patent number: 7731858Abstract: A method for modifying contaminants in a liquid comprising a reaction chamber where the liquid interacts with an ionization reaction material which causes contaminants to reduce or oxidize into harmless compounds.Type: GrantFiled: June 6, 2008Date of Patent: June 8, 2010Inventor: Robert D. Fite
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Publication number: 20100126945Abstract: A process for affecting reductive conversion reactions in a reactor using the palladized bacterial cellulose immobilized on a support for reductive conversion reactions in a reactor.Type: ApplicationFiled: April 2, 2008Publication date: May 27, 2010Applicants: INDIAN INSTITUTE OF TECHNOLOGY BOMBAY (IITB), DEPARTMENT OF BIOTECHNOLOGYInventors: Upendra Patel, Sumathi Suresh
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Patent number: 7718843Abstract: An iron powder for decomposition of organic chlorinated compounds, comprising from 0.03 to 0.5% by weight of Ni and from 0.005 to 5% by weight of carbon, wherein particles having a particle size of less than 53 ?m occupies less than 40% by weight, is used. It is particularly preferable that Ni, carbon and iron are partially alloyed. When the iron powder for decomposition is used by mixing with, for example, an Ni-free iron powder, the total Ni content can be reduced without deterioration of decomposition performance to organic chlorinated compounds. The iron powder has high decomposition performance in the treatment of a solid such as soil.Type: GrantFiled: July 17, 2007Date of Patent: May 18, 2010Assignee: Tosoh CorporationInventors: Yoju Shimizu, Yasuyuki Nagai
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Patent number: 7691267Abstract: A bioreactor is for processing a fluid stream. The bioreactor may include a bioreaction chamber for receiving the fluid stream therethrough, a pair of spaced apart gas header assemblies within the bioreaction chamber for coupling to first and second gases, a first plurality of hollow fiber membranes (HFMs) extending between the pair of gas header assemblies for introducing the first gas into the fluid stream within the bioreaction chamber, and a second plurality of HFMs extending between the pair of gas header assemblies for introducing the second gas into the fluid stream within the bioreaction chamber.Type: GrantFiled: February 27, 2008Date of Patent: April 6, 2010Assignee: Dynamac CorporationInventors: Daniel P. Smith, Tony Rector, Jay L. Garland
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Patent number: 7686962Abstract: The present disclosure provides for a system and method that intensely oxidizes water as it navigates through a system and accurately, controllably neutralizes the oxidation by-products before the water exits the system.Type: GrantFiled: August 13, 2008Date of Patent: March 30, 2010Assignee: Disney Enterprises, Inc.Inventors: Ivey Burns, Thoram Charanda, Thomas J. Nicodemo, Richard Davis, Janell Crowder
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Patent number: 7686963Abstract: In one aspect, ozone is quenched from a water stream, such as a drinking water or wastewater stream being treated with ozone, by contacting the stream with magnesium thiosulfate. In another aspect, a method of scrubbing ozone from a gaseous stream comprises contacting the gaseous stream with magnesium thiosulfate. In an alternative embodiment, chlorine is quenched from a water stream by contacting the stream with magnesium thiosulfate or potassium thiosulfate. In yet another aspect, a method of scrubbing chlorine from a gaseous stream comprises contacting the stream with magnesium thiosulfate or potassium thiosulfate. In another embodiment, a thiosulfate, such as magnesium thiosulfate, calcium thiosulfate, potassium thiosulfate, or sodium thiosulfate, is provided on an air filter for scrubbing ozone or chlorine from gaseous streams.Type: GrantFiled: November 16, 2004Date of Patent: March 30, 2010Assignee: Tessenderlo Kerley, Inc.Inventors: Michael Hojjatie, Dean Abrams
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Patent number: 7666370Abstract: The present disclosure relates to a process for recycling a sodium salt by decomposition of a sodium nitride liquid waste, comprising a neutralization step in which a nitric acid liquid waste or an off-gas having nitric acid dissolved therein which is produced through a wet reprocessing process comprising a dissolution step for dissolving a spent nuclear fuel in nitric acid is neutralized by adding or contacting the nitrate liquid waste or the off-gas to or with at least one sodium salt selected from the group consisting of sodium hydroxide, sodium hydrogencarbonate and sodium carbonate, thereby yielding a sodium nitrate liquid waste; a sodium nitrate-decomposition step in which the sodium nitrate liquid waste is reductively decomposed with a reducing agent, thereby decomposing sodium nitrate into a nitrogen gas and the sodium salt; and a recycle step for recycling the sodium salt into the neutralization step or wet reprocessing process.Type: GrantFiled: January 15, 2007Date of Patent: February 23, 2010Assignee: Japan Nuclear Fuel LimitedInventors: Yoshinobu Takaoku, Yukio Sumida, Noriyasu Moriya
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Patent number: 7666312Abstract: This invention provides a method of preventing corrosion in industrial water systems. The method includes maintaining a real-time oxidation-reduction potential at a set point, wherein the system is at operating temperature and pressure. A nonlinear equation is derived based upon theoretically derived or empirically collected data. The equation is then used to determine an inflow of active chemical species to the water system.Type: GrantFiled: March 28, 2007Date of Patent: February 23, 2010Assignee: Nalco CompanyInventor: Peter D. Hicks
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Patent number: 7658853Abstract: A process is described for the treatment of water contaminated by metals with a high oxidation degree, aliphatic compounds, aromatic compounds, halogen-aromatic compounds, chlorinated alkane and alkene compounds or mixtures thereof, which consists in circulating the contaminated water through a reactive system consisting of metallic iron and a zeolite having a silica/alumina ratio >50, placed in succession, wherein the first element through which the water passes is iron.Type: GrantFiled: November 10, 2006Date of Patent: February 9, 2010Assignee: ENI S.p.A.Inventors: Rodolfo Vignola, Raffaello Sisto, Giovanni Grillo, Umberto Cova, Pietro Cesti
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Patent number: 7648032Abstract: Disclosed herein are a method of reductively bleaching a mineral slurry comprising adding in the mineral slurry an effective amount of a formamidine sulfinic acid (FAS) and an effective amount of a borohydride to reductively bleach the mineral slurry, compositions comprising a mineral slurry, a FAS, and a borohydride, and final products comprising a mineral obtained by the method disclosed herein.Type: GrantFiled: March 22, 2005Date of Patent: January 19, 2010Assignee: Imerys Pigments, Inc.Inventors: Jun Yuan, Robert J. Pruett, Larry C. Powell