Utilizing Peroxy Compound (e.g., Hydrogen Peroxide, Peracid, Etc.) Patents (Class 210/759)
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Patent number: 12162750Abstract: A water circulation system that includes a pipe assembly for in-line mixing of water and ozone is disclosed. The pipe assembly includes a first flow path for water to flow through. The first flow path includes one or more ozone intake ports that are fluidically coupled to one or more ozone output ports of an ozone supply unit. The pipe assembly further includes a second flow path fluidically coupled in parallel with the first flow path. The second flow path includes a control valve that selectively permits a portion of the water to flow through the second flow path to produce a negative pressure in the first flow path so that ozone is drawn into the first flow path through the one or more ozone intake ports and mixed into the water flowing through the first flow path.Type: GrantFiled: July 12, 2022Date of Patent: December 10, 2024Inventor: Daniel W. Lynn
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Patent number: 12010994Abstract: Compositions and methods for reducing microbial loads on agricultural products are disclosed. The compositions include at least one acidulant and at least one surfactant, each present in an effective amount to reduce a microbial load on an agricultural product. The methods include applying compositions of at least one acidulant and at least one surfactant to agricultural products to reduce microbial loads and cross contamination of agricultural processing equipment.Type: GrantFiled: September 11, 2019Date of Patent: June 18, 2024Assignee: The United States of America, as represented by the Secretary of AgricultureInventor: Joshua Gurtler
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Patent number: 11970409Abstract: Per- and polyfluoroalkyl substances (PFAS) are destroyed by oxidation in supercritical conditions. PFAS in water can be concentrated and prepared for destruction in a pretreatment phase. Following annihilation of the PFAS in supercritical conditions to levels below 5 parts per trillion (ppt), the water effluent can be used to recover heat, returned to sub-critical conditions, and then released back into the environment.Type: GrantFiled: November 21, 2022Date of Patent: April 30, 2024Assignee: Revive Environmental Technology, LLCInventors: Lindy E. Dejarme, Kavitha Dasu, Russell R. Sirabian, Jeffrey Ellis, Dan Garbark, Nathan Bryant, John Tallarico, Joseph Casciano, Slawomir Winecki, David Holley, Joshua James, Keith Brown, Doug Hendry, Darwin Argumedo, Aaron Frank, Christopher Gordon Scheitlin, Michael M. Miller
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Patent number: 11878273Abstract: A method for washing a filter is used in a seawater desalination process including a first filtration step for subjecting seawater to microfiltration or ultrafiltration, and a second filtration step for subjecting seawater after the first filtration step to a reverse osmosis treatment. The filter is a microfiltration membrane or ultrafiltration membrane used in the first filtration step. An iron compound is added to seawater in any stage in the washing method. The washing method includes a washing chemical liquid preparation step for preparing washing chemical liquid, and a sticking matter removal step for removing matter sticking to the filter by bringing the filter into contact with washing chemical liquid. In the washing chemical liquid preparation step, seawater after the first filtration step is mixed with at least hydrogen peroxide to prepare washing chemical liquid having an iron compound concentration of 1.50 mmol/L or more in terms of iron atoms.Type: GrantFiled: May 7, 2019Date of Patent: January 23, 2024Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Yutaka Gojo, Takahide Yoshida
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Patent number: 11760666Abstract: A method to reduce or eliminate N-heterocycles, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one N-heterocycle in the presence of a halogenating or non-halogenating oxidizer. A method to reduce or eliminate AOX, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one AOX-containing species in the presence of a halogenating biocide.Type: GrantFiled: March 1, 2019Date of Patent: September 19, 2023Assignee: BL Technologies, Inc.Inventor: Paul Robert Frail
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Patent number: 11535544Abstract: A device for treatment of organic waste includes a heating unit, a hydrolysis tank, a regulating tank, an aerobic fermentation reactor, an organic waste feeder, an aerobe feeder, a delivery mechanism, a deodorization unit, and an air distributor. The hydrolysis tank is connected to the regulating tank, and the regulating tank is connected to the aerobic fermentation reactor. The delivery mechanism is disposed between the regulating tank and the aerobic fermentation reactor. The heating unit is connected to the hydrolysis tank and is configured to heat an organic material in the hydrolysis tank. The organic waste feeder and the aerobe feeder are connected to the regulating tank. The deodorization unit is disposed on and connected to the aerobic fermentation reactor. The air distributor is disposed in the aerobic fermentation reactor and is configured to provide oxygen to the aerobic fermentation reactor.Type: GrantFiled: November 29, 2020Date of Patent: December 27, 2022Assignee: HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zaixing Li, Jun Ma, Xiaosha Wu, Yali Huang, Xuebin Han, Xue Qin, Shuang Liu
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Patent number: 11459938Abstract: An internal combustion system includes a control device having an accumulated amount of time measuring unit that measures an accumulated amount of time by measuring an amount of time when the temperature of the coolant measured by a temperature sensor is equal to or higher than a defined temperature and accumulating the amount of time measured, an exchange determination unit that determines that the coolant needs to be exchanged when the measured accumulated amount of time reaches or exceeds an upper-limit accumulated amount of time, and an upper-limit amount of time setting unit that sets the upper-limit accumulated amount of time for determination by the determination unit in accordance with the type of metal forming the flow channel where the coolant flows.Type: GrantFiled: December 16, 2021Date of Patent: October 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuaki Kodama, Yoichiro Yoshii, Masayuki Nagasawa, Shinichi Ogura
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Patent number: 11389767Abstract: A method for controlling mercury emissions within a FGD system, the method includes preparing a treatment composition for application on FGD system components, the treatment composition comprising a biocide, applying the treatment composition to an FGD system, wherein the FGD system includes an FGD scrubber, monitoring the bacterial load present within the FGD system, and optimizing the operating conditions of an aqueous system to determine when additional treatment is required.Type: GrantFiled: April 18, 2018Date of Patent: July 19, 2022Assignee: BL Technologies, Inc.Inventors: Jeremy Connolly, Chuck Cunningham
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Patent number: 11299972Abstract: This disclosure describes methods for remediating subterranean-formed metal-polymer complexes in wells in subterranean formations. In particular, these methods utilize a peracetic acid remediation mixture. The peracetic acid remediation mixture is injected into a subterranean formation adjacent to a well at a pressure below the fracture pressure of the formation. A sufficient contact time is allowed and then the peracetic acid remediation mixture is pumped from the subsurface. This has been shown to degrade, and thus remediate, polymer-containing, subterranean-formed metal-polymer complexes in shale formations.Type: GrantFiled: October 9, 2020Date of Patent: April 12, 2022Assignee: Flex-Chem Holding Company, LLCInventors: Andrew Bryce Conway, Scott Bailey
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Patent number: 11225755Abstract: In some embodiments, a method may include reducing the microbial load in contaminated water of water recycle loops. These water recycling loops may include pulp and paper mills, cooling towers and water loops, evaporation ponds, feedstock processing systems and/or non-potable water systems. The methods may include providing a peracetate oxidant solution. The peracetate solution may include peracetate anions and a peracid. In some embodiments, the peracetate solution may include a pH from about pH 10 to about pH 12. In some embodiments, the peracetate solution has a molar ratio of peracetate anions to peracid ranging from about 60:1 to about 6000:1. In some embodiments, the peracetate solution has a molar ratio of peracetate to hydrogen peroxide of greater than about 16:1. The peracetate solution may provide bleaching, sanitizing and/or disinfection of contaminated water and surfaces. The peracetate oxidant solution may provide enhanced separation of microbes from contaminated water.Type: GrantFiled: March 2, 2020Date of Patent: January 18, 2022Assignee: Clean Chemistry, Inc.Inventor: Wayne E. Buschmann
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Patent number: 11154053Abstract: A composition for mitigating, inhibiting, ameliorating and/or eliminating phytoplankton growth in a waterbody, the composition comprising an active ingredient at concentration of 80.0-99.5% (w/w) of the composition and a coating material at concentration of 0.5-20% (w/w) of the composition; wherein the critical surface tension of the composition is between 15-60 dyn/cm and wherein the relative density of the composition, prior to being submerged in water, is above 1 g/cm3.Type: GrantFiled: May 12, 2020Date of Patent: October 26, 2021Assignee: Bluegreen Water Technologies Ltd.Inventors: Moshe Harel, Oleg Yu. Berezin
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Patent number: 11124713Abstract: Relatively low value disulfide oil (DSO) compounds produced as by-products of the mercaptan oxidation (MEROX) processing of refinery hydrocarbon streams, and oxidized disulfide oils (ODSO), are economically converted to value-added light olefins by introducing the DSO and/or ODSO compounds as the feed to a fluidized catalytic cracking (FCC) unit and recovering the light olefins, namely, ethylene and propylene, and in some embodiments a minor amount of butylenes which is then recovered and introduced as the feedstream to a metathesis process for the production and recovery of propylene.Type: GrantFiled: April 17, 2019Date of Patent: September 21, 2021Assignee: Saudi Arabian Oil CompanyInventors: Omer Refa Koseoglu, Robert Peter Hodgkins
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Patent number: 11089777Abstract: A composition for mitigating, inhibiting, ameliorating and/or eliminating phytoplankton growth in a waterbody, the composition comprising an active ingredient at concentration of 80.0-99.5% (w/w) of the composition and a coating material at concentration of 0.5-20% (w/w) of the composition; wherein the critical surface tension of the composition is between 15-60 dyn/cm and wherein the relative density of the composition, prior to being submerged in water, is above 1 g/cm3.Type: GrantFiled: May 12, 2020Date of Patent: August 17, 2021Assignee: Bluegreen Water Technologies Ltd.Inventors: Moshe Harel, Oleg Yu. Berezin
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Patent number: 10995024Abstract: The present invention relates to apparatus, methods, and applications for treating wastewater, and more particularly to biological processes for removing pollutants from wastewater. This invention further relates to apparatus and methods for growing microbes on-site at a wastewater treatment facility, and for economically inoculating sufficient microbes to solve various treatment problems rapidly.Type: GrantFiled: December 17, 2009Date of Patent: May 4, 2021Assignee: Advanced Biological Services, Inc.Inventor: G. Robert Whiteman
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Patent number: 10974211Abstract: A system and related methods for monitoring and dosing peroxycarboxylic acids, particularly peracetic acid, in food processing applications based upon the desired concentration of the processing solution. The peroxycarboxylic acid concentration measured, and additional peroxycarboxylic acid added to the processing solution if the measured concentration is below a threshold level of the desired concentration, or additional water being added to the processing solution if the measured concentration is above a threshold level of the desired concentration. The system and related methods can be utilized with either live stream or static water sources to keep the concentration of peroxycarboxylic acid at or near desired concentration levels, which results in less concentration variation than experienced with conventional flow-based or hand-mixed systems.Type: GrantFiled: February 17, 2017Date of Patent: April 13, 2021Assignee: Zee Company, Inc.Inventors: George Beason, Jonathon R. Bullard, James A. Faller, Robert C. Bullard
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Patent number: 10862124Abstract: The present invention relates to a conducting material composition which is allowed to provide an electrode having a higher content of uniformly dispersed carbon nanotubes, thereby providing a lithium rechargeable batteryelectrode having more improved electrical characteristics and life characteristics, a slurry composition for forming a lithium rechargeable batteryelectrode using the same, and a lithium rechargeable battery. The conducting material composition includes carbon nanotube; and a dispersing agent including a plurality of polyaromatic hydrocarbon oxides, in which the dispersing agent contains the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in an amount of 60% by weight or more.Type: GrantFiled: July 31, 2014Date of Patent: December 8, 2020Inventors: Kwon Nam Sohn, Kil Sun Lee, Won Jong Kwon, Byung Hun Oh, Su Jin Park, In Young Kim
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Patent number: 10807947Abstract: An integrated controlled catalytic oxidation process converts low value disulfide oil (DSO) compounds produced as a by-product of a generalized mercaptan oxidation (MEROX) process into oxidized DSO (ODSO) compounds including sulfoxides, sulfones, sulfonates and sulfinates that are completely or partially water soluble and which have utility, e.g., as lubricity additives in diesel fuel and as a solvent in aromatic solvent separation processes.Type: GrantFiled: December 5, 2018Date of Patent: October 20, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Omer Refa Koseoglu, Robert Peter Hodgkins
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Patent number: 10576427Abstract: A method for cleaning a filter membrane in which at least 2 types of cleaning water containing oxidizing agents are prepared, and the filter membrane is cleaned using the cleaning water in an ascending order of the oxidizabilities of the oxidizing agents. Moreover, an apparatus for cleaning a filter membrane of the present invention comprises a means for cleaning the filter membrane using at least 2 types of cleaning water containing oxidizing agents, and the filter membrane is cleaned using the cleaning water in an ascending order of the oxidizabilities of the oxidizing agents. The method and the apparatus for cleaning a filter membrane can efficiently remove polluting substances adhered to a filter membrane while reducing the amounts of oxidizing agents and water to be used, and can maintain the filtration performance for a long period of time.Type: GrantFiled: June 1, 2015Date of Patent: March 3, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kyohei Aketagawa, Nozomu Yasunaga
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Patent number: 10308540Abstract: The present disclosure relates to a novel process to control odors from manure by digesting the manure into Methane. Embodiments may comprise a two stage anaerobic digestion process to digest the wastes and remove the nutrients from the wastewater. The initial anaerobic digestion is carried out in a closed vessel to capture any gassed released and otherwise proceeds as current practices are. The wastewater from the first stage digestion is then pumped into a second reaction vessel. This vessel reproduces the conditions that produce natural gas (methane) in the geologic setting, with high temperatures and high pressures.Type: GrantFiled: June 5, 2015Date of Patent: June 4, 2019Inventor: Stanley Marcus Meyer
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Patent number: 10244762Abstract: A biocide contains a hydrogen peroxide producing compound, in combination with controlled amounts of a chelating agent and a peroxide enhancing agent. In one embodiment, the composition can be used to control an algae population in a water body. The chelating agent and the peroxide enhancing agent synergistically combine with the hydrogen peroxide producing compound to increase the potency and effectiveness of the oxidizer.Type: GrantFiled: February 24, 2017Date of Patent: April 2, 2019Assignee: Arch Chemicals, Inc.Inventors: Deqing Lei, Ryan Wersal
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Patent number: 10046993Abstract: A compact system for treating pharmaceutical waste at a location at which the pharmaceutical waste is disposed includes a waste influent tank configured to hold and discharge a fluid containing pharmaceutical waste, a first container configured to hold and discharge hydrogen peroxide utilized in a chemical reaction to treat the pharmaceutical waste, a second container configured to hold and discharge aqueous iron solution utilized in a chemical reaction to treat the pharmaceutical waste, a neutralizer tank in which the chemical reaction is carried out, and a drain container configured to receive treated fluid. The system excludes a UV light source.Type: GrantFiled: December 18, 2013Date of Patent: August 14, 2018Assignee: CLEAR RIVER ENVIRO, LLCInventors: Michael Sanborn, Todd McGee, Mark Macdonell, Scott Kosch
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Patent number: 10017403Abstract: Compositions and methods for the use of peracid compositions having low to substantially no hydrogen peroxide for various water treatments, including oil- and gas-field operations, and/or other aseptic treatments are disclosed. In numerous aspects, peracetic acid is the preferred peracid and is treated with a peroxide-reducing agent to substantially reduce the hydrogen peroxide content. Methods for using the treated peracid compositions for treatment of drilling fluids, frac fluids, flow back waters and disposal waters are also disclosed for improving water condition, reducing oxidizing damage associated with hydrogen peroxide and/or reducing bacteria infestation.Type: GrantFiled: March 13, 2013Date of Patent: July 10, 2018Assignee: Ecolab USA Inc.Inventors: Victor Keasler, Renato De Paula, Junzhong Li, David D. McSherry, Brandon Herdt, Richard Staub
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Patent number: 9986741Abstract: A surface treatment powder comprising (a) about 50 wt. % or more of a percarbonate, perphosphate, persulfate, peroxide or perborate salt; (b) about 0.2-10 wt. % of a chlorinated isocyanurate salt; and (c) a bleach activator, and method of using same to inhibit the growth of a microorganism on a surface.Type: GrantFiled: November 13, 2015Date of Patent: June 5, 2018Assignee: DeVere Company, Inc.Inventors: Randal D. Stevenson, Thomas J. Fahey
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Patent number: 9802846Abstract: A process for treating oilfield waste water includes combining oilfield waste water and a biocide comprising hydrogen peroxide, the biocide being present in an amount effective to decrease a number density of bacteria in the oilfield waste water. The treated water can be reused in a subterranean environment.Type: GrantFiled: June 21, 2013Date of Patent: October 31, 2017Assignee: BAKER HUGHES, a GE COMPANY, LLCInventors: Kushal Seth, Jenifer C. Lascano, Larry G. Hines
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Patent number: 9694401Abstract: A method of treating a site containing perfluoroalkyl compounds (PFCs) is described. The method and apparatus treats the site with fine oxygen/ozone gas bubbles delivered with a hydroperoxide coating and solution which is activated by self-created temperature or applied temperature to raise the oxidation potential above 2.9 volts. Once begun, the reaction is often self-promulgating until the PFC is exhausted, if PFC concentrations are sufficiently elevated.Type: GrantFiled: March 4, 2013Date of Patent: July 4, 2017Assignee: KERFOOT TECHNOLOGIES, INC.Inventor: William B. Kerfoot
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Patent number: 9656890Abstract: The present invention is directed to a method for the treatment of an environmental medium contaminated with arsenic, comprising treating such medium with an effective amount of persulfate and zero valent iron.Type: GrantFiled: November 11, 2014Date of Patent: May 23, 2017Assignee: PeroxyChem, LLCInventor: Philip A. Block
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Patent number: 9617170Abstract: The present invention relates to a process for reduction of the presence of microorganisms and/or decomposition of organic micropollutants in water using an energy source and an additive characterized in that the energy source is UV radiation and the additive comprises performic acid.Type: GrantFiled: October 16, 2014Date of Patent: April 11, 2017Assignee: Kemira OyjInventors: Tatjana Karpova, Esa Melin, Antti Vuori, Ulrik Ojstedt, Robin Gramstad, Kaj Jansson, Marko Kolari
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Publication number: 20150129507Abstract: The present invention is directed to a method for the treatment of an environmental medium contaminated with arsenic, comprising treating such medium with an effective amount of persulfate and zero valent iron.Type: ApplicationFiled: November 11, 2014Publication date: May 14, 2015Applicant: PEROXYCHEM LLCInventor: Philip A. BLOCK
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Patent number: 8999175Abstract: The present invention relates to methods employing compositions including medium chain peroxycarboxylic acid for reducing microbial contamination on fruit, vegetable, or other produce; in waters used to transport or process fruit, vegetable, or other produce; or on surfaces employed in transporting or processing fruit, vegetable, or other produce. The present invention also relates to the medium chain peroxycarboxylic acid compositions. The methods include applying a medium chain peroxycarboxylic acid composition to fruit, vegetable, or other produce; into waters used to transport or process fruit, vegetable, or other produce; or to surfaces employed in transporting or processing fruit, vegetable, or other produce.Type: GrantFiled: January 9, 2004Date of Patent: April 7, 2015Assignee: Ecolab USA Inc.Inventors: Victor Fuk-Pong Man, Joshua Paul Magnuson
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Patent number: 8992851Abstract: Continuous flow water treatment systems, devices and methods that reduce the costs associated with using oxidizing agents in water treatment by maximizing mixing energy with pressure of the solution in a continuous flow system. The systems comprise an inflow conduit that provides water to be treated to a mixing chamber in a housing, a first chemical injector mounted into either the inflow conduit or the housing that provides an oxidizing agent into the water flow, a driven impeller mounted within the mixing chamber that maintains the flow of fluid through the apparatus and provides agitation to the fluid within the mixing chamber, and an outflow conduit for expelling the treated water from the mixing chamber. The outflow conduit may be pressurized to increase the mixing energy in the mixing chamber.Type: GrantFiled: September 19, 2008Date of Patent: March 31, 2015Assignee: 0832521 B.C. Ltd.Inventors: Marten Hebert, Clifford Oleksiew
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Patent number: 8992780Abstract: The invention provides methods and compositions for reducing the malodorous sulfide gas released by a wastewater treatment system. The method preserves the vitality of waste consuming organisms within the system. The method comprises the steps of: determining the SRP PAA demand of the system, determining the aerobic PAA demand of the system, and adding a composition in an amount such that it is in excess of the SRP PAA demand but is below the aerobic PAA demand. Even though the composition increases the amount of sulfates within the wastewater it reduces the amount of SRP which prevents the malodorous sulfite gas release. The composition comprises at least one percarboxyacid.Type: GrantFiled: May 10, 2013Date of Patent: March 31, 2015Assignee: Ecolab USA IncInventors: Gary L. Champion, Victor Keasler, Robert J Ryther
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Patent number: 8961798Abstract: A method and system of providing ultrapure water for semiconductor fabrication operations is provided. The water is treated by utilizing a free radical scavenging system and a free radical removal system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The free radical removal system can comprise use of a reducing agent. The ultrapure water may be further treated by utilizing ion exchange media and degasification apparatus. A control system can be utilized to regulate addition of the precursor compound, the intensity of the actinic radiation, and addition of the reducing agent to the water.Type: GrantFiled: January 17, 2011Date of Patent: February 24, 2015Assignee: Evoqua Water Technologies LLCInventor: Bruce Lee Coulter
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Patent number: 8950932Abstract: A method for recovering hydrocarbons from an aqueous hydrocarbonaceous slurry comprises pumping a mixture of the slurry and an oxidizing agent through a conduit, wherein the conduit comprises a plurality of stationary interior projections defining a non-linear path through the conduit, and thereby agitating the mixture to release the hydrocarbons from the slurry; and separating the hydrocarbons from the slurry.Type: GrantFiled: March 1, 2013Date of Patent: February 10, 2015Assignee: Zeta Global, Ltd.Inventors: Steig Breloff, Lawrence Conaway
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Publication number: 20150034551Abstract: A process for treating an aqueous solution (A) derived from a method of producing a compound of formula (I), wherein R1 and R2 are identical or different and are chosen from among hydrogen and C1-C5 alkyl, wherein R1 and R2 together form a methylene group, and wherein R3, R4, R5 and R6, which are independently identical or different, are chosen from among: a hydrogen atom, a hydroxy group (—OH), an alkoxy group (—OR), an alcohol group (—ROH), an aldehyde group (—CHO), a ketone group (—C(?O)R), an acid group (—COOH), a nitrile group (—CN), a C1-C6 alkyl chain, linear or branched, saturated or unsaturated, potentially comprising one or a plurality of substitutes in a terminal or lateral position or one or more functions in said alkyl chain, R being a C1-C5 alkyl, wherein the aqueous solution (A) comprises at least one sulfate salt SO42?(S) rendered soluble and at least one aromatic organic compound (O) formed during the method for producing the compound (I), and wherein the process comprises at least one step (Type: ApplicationFiled: March 15, 2013Publication date: February 5, 2015Inventors: Laurent Garel, Bertrand Satier
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Publication number: 20140374103Abstract: A process for treating oilfield waste water includes combining oilfield waste water and a biocide comprising hydrogen peroxide, the biocide being present in an amount effective to decrease a number density of bacteria in the oilfield waste water. A process for treating oilfield waste water includes measuring an oxidation reduction potential (ORP) of oilfield waste water; combining the oilfield waste water and an oxidizer in an amount to adjust the ORP of the oilfield waste water to be greater than or equal to a first ORP value; and adding a biocide comprising hydrogen peroxide to the oilfield waste water to adjust the ORP of the oilfield waste water to be greater than or equal to a second ORP value, to treat the oilfield waste water, the second ORP value being greater than the first ORP value.Type: ApplicationFiled: June 21, 2013Publication date: December 25, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Kushal Seth, Jenifer C. Lascano, Larry G. Hines
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Patent number: 8906241Abstract: Disclosed is a new form of reactive ozone and techniques for producing nanobubble suspensions of the reactive ozone. The bubbles entrap a high concentration of ozone, with the ozone orienting a net negative charge outwards and a net positive charge inwards.Type: GrantFiled: September 7, 2006Date of Patent: December 9, 2014Assignee: Kerfoot Technologies, Inc.Inventor: William B. Kerfoot
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Publication number: 20140348735Abstract: Process for treating a medium by the removal or destruction of one or more undesired substances present in said medium, comprising combining hydrogen peroxide and alkali hydroxide in an aqueous solution to form superoxide, and bringing the resultant superoxide-containing solution into contact with said medium. The process is useful for the destruction of halogenated organic pollutants and also for carbon dioxide removal from flue gases. The process can also be applied for soil remediation.Type: ApplicationFiled: December 20, 2012Publication date: November 27, 2014Inventors: Yoel Sasson, Uri Stoin, Zach Barnea
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Patent number: 8877070Abstract: A process for oxidizing a chemical contaminant selected from the group consisting of (i) aromatic compounds, (ii) unsaturated compounds having one or more of the following bonds: C?C, C?C, C?O and C?N, and (iii) amines, which process comprises combining the chemical contaminant and cuprous (Cu+) ions in an aqueous solution in a reaction vessel in an essentially oxygen-free environment, and subsequently feeding an oxidizer to said solution.Type: GrantFiled: January 28, 2010Date of Patent: November 4, 2014Inventor: Magal Saphier
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Publication number: 20140319078Abstract: A process for removing urea from an aqueous solution is disclosed herein, the process comprises the steps of: feeding an aqueous solution comprising urea into a mix tank; feeding hydrogen peroxide into the mix tank; feeding at least one soluble catalyst into the mix tank separately from the hydrogen peroxide feed; mixing the aqueous solution comprising urea, hydrogen peroxide, and the at least one soluble catalyst in the mix tank, forming a reactant mixture; and oxidizing the urea in the reactant mixture yielding CO2, N2, and H2O. The soluble catalyst is selected from a group of catalysts that when mixed with the hydrogen peroxide and urea causes the rate of reaction of the oxidation of the urea by hydrogen peroxide to accelerate; such as soluble iron salts. A system configured to carry out the process for removing urea from an aqueous solution is also disclosed herein. The disclosed process and system may be added to or incorporated with existing processes and systems for treating aqueous solutions.Type: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Inventors: Luisa Kling Miller, Jorge Miller
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Patent number: 8871098Abstract: The invention discloses an apparatus and method to uniformly disperse ozone gas bubbles into liquid phase water for the treatment thereof. The apparatus consists of a water inlet section connected with a section with structured packing or monolith having parallel flow channels. A portion of the influent water is withdrawn from the main water stream as a side stream, pressurized by a pump, mixed with ozone-containing gas, and then injected back into the main water flow. The side stream may be divided into multiple streams either before or after mixing with the ozone-containing gas, and then injected into the main flow section upstream of the packed section. In alternate embodiments, the ozone-containing gas can be injected directly through the gas diffusers just upstream of the packed section in order to achieve uniform concentration of gas and liquid in the fluid entering the monolith.Type: GrantFiled: September 22, 2011Date of Patent: October 28, 2014Assignee: Air Products and Chemicals, Inc.Inventors: Vipul P. Dholakia, Annemarie Ott Weist, David Lee Mitchell, Jr.
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Patent number: 8871097Abstract: A method of reclaiming a formate brine may include increasing the pH of a spent formate brine fluid comprising water-soluble polymers; treating the fluid with an oxidizing agent; and removing at least a portion of suspended solids from the fluid. Further, a method of reclaiming a formate brine may include lowering the pH of the spent formate brine fluid comprising water-soluble polymers; increasing the pH of the spent formate brine fluid to initiate precipitation of materials solubilized in the fluid; treating the fluid with an oxidizing agent to break down remaining water-soluble polymer; and recovering at least a portion of the formate brine.Type: GrantFiled: July 24, 2008Date of Patent: October 28, 2014Assignee: M-I L.L.C.Inventors: Hui Zhang, Robert L. Horton, Charles Svoboda, Frank E. Evans
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Patent number: 8858902Abstract: A method for removing sulfide from an aqueous alkali solution in which hydrogen peroxide is introduced into a sulfide-containing aqueous alkali solution associated with an alkali mineral recovery operation. The method is particularly useful for the processing of sulfide-containing aqueous alkali solutions containing NaHCO3 and Na2CO3, where bicarbonate in the sulfide-depleted alkali solution is decomposed to form Na2CO3, with concurrent evolution of gaseous carbon dioxide byproduct but without formation of gaseous H2S as a pollutant, and where Na2CO3 values are subsequently recovered from the sulfide-depleted carbonate-rich alkali solution via a crystallization operation.Type: GrantFiled: May 17, 2013Date of Patent: October 14, 2014Assignee: FMC Wyoming CorporationInventor: William C. Copenhafer
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Patent number: 8858806Abstract: Certain exemplary embodiments provide methods for reducing a concentration of a contaminant associated with a medium, which can be any substance or material, such as soil, water, air, and/or fluid. In one exemplary method, the medium is treated with a ferric chelate and an oxidizing agent in amounts effective to oxidize at least a portion of the contaminant.Type: GrantFiled: June 13, 2013Date of Patent: October 14, 2014Inventor: Henry Wilmore Cox, Jr.
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Publication number: 20140299552Abstract: A process for disinfecting a treatment fluid is disclosed, including the step of admixing an aqueous solution comprising two or more oxidants generated via electrolysis of a salt solution with a treatment fluid. The mixed oxidants may be generated on site, using a containerized system.Type: ApplicationFiled: May 25, 2012Publication date: October 9, 2014Applicant: M-I L.L.C.Inventors: Colin Stewart, Mukesh Kapila, James R. Fajt, Perry Lomond, Daniel Gallo, Richard Bingham, Alan McKee
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Patent number: 8852437Abstract: A method of producing sterile water from raw water during a production cycle in a production plant P, including adding a disinfectant to the produced sterile water during the production cycle to permanently monitor the condition of the sterile water and/or the production plant, and determining and evaluating a reduction of concentration of the disinfectant directly in the production stream. In a production plant suited for carrying out the method, a sterile sensor is provided directly in the production stream through which the reduction of concentration of the disinfectant added to the produced sterile water can be permanently measured and evaluated to provide a sterility evidence.Type: GrantFiled: September 30, 2011Date of Patent: October 7, 2014Assignee: Krones AGInventor: Jörg Zacharias
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Publication number: 20140246382Abstract: A method for decontaminating a liquid having sulfides includes preparing a stabilized sodium percarbonate solution. In an embodiment, the method includes decontaminating a liquid. The liquid comprises reactive sulfides. The method also includes preparing a stabilized sodium percarbonate solution, which includes adding sodium percarbonate to a liquid solution. The liquid solution comprises a peroxide stabilizer and an acid. The method further includes dosing the liquid into the stabilized sodium percarbonate solution to decontaminate the liquid by oxidizing at least a portion of the reactive sulfides, wherein at least a portion of the reactive sulfides comprise solids.Type: ApplicationFiled: May 15, 2014Publication date: September 4, 2014Applicant: UNITED LABORATORIES INTERNATIONAL, LLCInventors: Stephen D. Matza, Jack G. Frost
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Patent number: 8808550Abstract: A system and method for oxidation treatment of water in which ozone gas is dissolved in water by passing a mixed gas-liquid stream through a monolith at an elevated pressure that is close to the preferred gas output pressure for an ozone generator. The monolith is preferably contained at least partially within a gas-liquid separator vessel. Advanced oxidation is optionally provided by injecting hydrogen peroxide and/or embedding a catalyst on the monolith. At least a portion of the treated water is preferably recycled in order to increase total ozone dosing in the effluent stream.Type: GrantFiled: March 18, 2010Date of Patent: August 19, 2014Assignee: Air Products and Chemicals, Inc.Inventor: Vipul P. Dholakia
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Patent number: 8801932Abstract: A process for treating wastewater containing nitro-hydroxy-aromatic compounds using oxidative sub-critical conditions. The wastewater to be treated is adjusted to contain excess hydroxide equivalent to greater than three moles of free hydroxide per mole of total nitro-hydroxy-aromatic compounds, and a sub-stoichiometric amount of an oxidant is supplied to the wastewater. The nitro-hydroxy-aromatic compounds may include nitro-phenol salts or nitro-cresol salts.Type: GrantFiled: May 14, 2010Date of Patent: August 12, 2014Assignee: Noram International LimitedInventor: Michael Gattrell
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Patent number: 8801867Abstract: A method for cleaning process apparatus used for production of liquids, especially for cleaning filters, for example membrane filters. The apparatus is contacted with a solution of periodate. It is especially preferred that the cleaning process is carried out at a temperature between 15 and 95° C.Type: GrantFiled: January 26, 2010Date of Patent: August 12, 2014Assignee: X-Flow B.V.Inventors: Arie Cornelis Besemer, Elmar Van Mastrigt, André Mepschen
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Publication number: 20140202956Abstract: A method for treating a sludge to be fed to a bioreactor for treating wastewater, or an anaerobic or aerobic sludge digester, the method comprising contacting the sludge with free nitrous acid.Type: ApplicationFiled: June 22, 2012Publication date: July 24, 2014Applicant: THE UNIVERSITY OF QUEENSLANDInventor: Zhiguo Yuan