Preventing, Decreasing, Or Delaying Precipitation, Coagulation Or Flocculation Patents (Class 210/696)
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Patent number: 8535567Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.Type: GrantFiled: August 3, 2012Date of Patent: September 17, 2013Assignee: Wincom, Inc.Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
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Patent number: 8535568Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.Type: GrantFiled: August 3, 2012Date of Patent: September 17, 2013Assignee: Wincom, Inc.Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
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Patent number: 8535569Abstract: A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.Type: GrantFiled: August 3, 2012Date of Patent: September 17, 2013Assignee: Wincom, Inc.Inventors: William N. Matulewicz, Peter F. Vogt, James N. Milawski
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Publication number: 20130233803Abstract: Platelet rich plasma and/or platelet concentrate is prepared by placing whole blood in a first chamber of a sterile processing disposable having two chambers. The processing disposable is subjected to a first centrifugation to separate red blood cells, and the resulting platelet rich plasma supernatant is decanted to the second chamber. The processing disposable is subjected to a second centrifugation to concentrate platelets. A volume of the platelet poor plasma supernatant in the second chamber is removed, and the platelets are re-suspended in the remaining plasma. The second chamber may contain anticoagulant to preclude aggregation of the platelets.Type: ApplicationFiled: April 24, 2013Publication date: September 12, 2013Inventors: Lou BLASETTI, Sherwin V. Kevy
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Patent number: 8529769Abstract: A method inhibits the formation of zirconium molybdate precipitate in an aqueous solution containing the element molybdenum and the element zirconium by adding a chemical element selected from plutonium, tellurium, antimony and mixtures thereof with the aqueous solution. The method can be used for reprocessing used fuels with the element molybdenum and the element zirconium.Type: GrantFiled: October 27, 2010Date of Patent: September 10, 2013Assignees: Areva NC, Commissariat à l'énergie atomique et aux énergies alternativesInventor: Alastair Magnaldo
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Patent number: 8524088Abstract: Scaling is controlled in a cooling water system with CO2 based upon measurements of the cooling water's pH, alkalinity and Ca2+concentration.Type: GrantFiled: October 1, 2012Date of Patent: September 3, 2013Assignee: American Air Liquide, Inc.Inventors: Jeffrey E. Arbogast, Meenakshi Sundaram, Daniel D. Duarte
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Publication number: 20130200301Abstract: The invention describes a method to prevent the formation of struvite in wastewater treatment plants. For that purpose, calcium silicate hydrate (CSH) is metered out into the excess sludge.Type: ApplicationFiled: June 1, 2011Publication date: August 8, 2013Applicant: TECHNISCHE UNIVERSITAT DARMSTADTInventors: Peter Cornel, Sebastian Petzet
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Patent number: 8496847Abstract: A method and chemical composition are provided which permit operation of evaporative cooling towers at increased cycles of concentration without formation of calcium scale. The method can include first determining the calcium hardness and total alkalinity of the makeup water, calculating the operating cycles of concentration using a formula developed for the specified chemical composition, then dosing the treated water to maintain a constant level of the chemical composition. The method permits scale-free operation of evaporative cooling towers at a minimum of two (2) cycles of concentration over existing technology.Type: GrantFiled: April 29, 2011Date of Patent: July 30, 2013Assignee: ProChemTech International, Inc.Inventor: Timothy Edward Keister
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Publication number: 20130157920Abstract: A process for purifying extracted oil, byproducts, and wastewater, including the steps of: providing a composition having at least one solvent, an alkaline agent, a deflocculant, at least one surfactant selected from the group comprising an alkoxylated alcohol surfactant, an alkylamino-polyethoxy-sulfate surfactant, a polyether-phosphate ester surfactant, a surfactant that is a phosphate ester of an ethoxylated alcohol, and a surfactant that is a polyethyleneglycol monoaklyl ether, and a bonding agent; and associating the composition with at least one of extracted oil, byproducts, and wastewater—including, but not limited to, froth, middlings, tailings, mature fine tailings, solids, and combinations thereof.Type: ApplicationFiled: February 11, 2013Publication date: June 20, 2013Applicant: MWJ, LLCInventor: MWJ, LLC
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Patent number: 8444858Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.Type: GrantFiled: February 29, 2012Date of Patent: May 21, 2013Assignee: A.Y. Laboratories Ltd.Inventor: Ayala Barak
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Patent number: 8444829Abstract: Improved methods for carrier-gas humidification/dehumidification [HDH] or dewvaporization enable production of clean water, derived in part from models generated and tested with produced water from the oil and gas industries, which likewise address industrial waste water remediation and generally facilitate the time and cost efficient disposal of waste waters from a plurality of industries ranging from food, wine, and beverage production to novel enhanced efficiencies within the oil and gas industries themselves. High efficiency carrier gas HDH thermal distillation functions without membranes, at ambient or near ambient pressures with no required pre- or post-treatment, and economies of scale to leverage a plastics-based processing platform. Industrial waste water including that generated by the food, wine, and beverage industries, among others, is likewise ameliorated according to the instant teachings.Type: GrantFiled: September 21, 2007Date of Patent: May 21, 2013Assignee: Altela, Inc.Inventors: Ned Allen Godshall, Matthew Jason Bruff
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Publication number: 20130118987Abstract: This invention relates to an anti-scale water treatment system, composition and related methods. The system suppresses hard scale formation by releasing small amounts of transforming agent into water.Type: ApplicationFiled: November 16, 2011Publication date: May 16, 2013Applicant: Ecowater Systems LLCInventors: Jeff L. VerMurlen, Frank A. Brigano, John H. Schroeder
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Patent number: 8430971Abstract: A composition is provided for lowering a pH of a drilling fluid. The composition includes HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone. A method of using the composition includes adding the composition to a drilling fluid for a well to assist in lowering a pH thereof. Methods are also provided for performing hydraulic fracturing of an oil or a gas well, for adjusting a pH of a drilling fluid, for adjusting and maintaining a pH of a process fluid, for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate, for removing a foulant in a fluid-handling element, and for adjusting a pH and lowering a salt level of turf.Type: GrantFiled: April 23, 2012Date of Patent: April 30, 2013Assignee: Green Products & Technologies, L.L.C.Inventor: John MacDonald
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Patent number: 8425781Abstract: Use of a Maillard reaction product as an adjuvant in a variety of applications including solid-liquid separations, corrosion inhibition, emulsification, dust suppression, slow release fertilization, viscosity modification and others and especially as a depressant or collector in separation processes, including the selective separation of solids and/or ionic species from aqueous media, such as in the process of froth flotation.Type: GrantFiled: June 5, 2009Date of Patent: April 23, 2013Assignee: Georgia-Pacific Chemicals LLCInventors: John B. Hines, Brian L. Swift, Pablo G. Dopico
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Publication number: 20130082004Abstract: There is provided a water area equipment that can inhibit water scale formation and further can very easily remove formed water scale. In the water area equipment, silicic acid polymerization can be inhibited to reduce water scale formation, and, further, formed water scale can very easily be removed, for example, by lightly wiping off the water scale. The water area equipment on which water from a water supply source can be poured comprises a unit configured to add an inhibitor for silicic acid polymerization to water deposited as water residual on the surface of the water area equipment and can inhibit water scale formation and can allow formed water scale to be easily removed. A specific unit that inhibits the polymerization of silicic acid is configured to enhance the acidity of water and, for example, to adjust pH of residual water to 1.5 to 5.5.Type: ApplicationFiled: September 21, 2012Publication date: April 4, 2013Applicant: TOTO LTD.Inventor: TOTO LTD.
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Patent number: 8409357Abstract: Self-cleaning apparatus and methods are disclosed for handling viscous fluids, such as thick solid-liquid slurries of lignocellulosic biomass and its components, under high pressure, using an array of retractable valves.Type: GrantFiled: April 2, 2012Date of Patent: April 2, 2013Assignee: Renmatix, Inc.Inventors: Michel Adam Simard, Scott William Sommer
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Publication number: 20130062287Abstract: A system for dewatering a stream of slurry has a first and a second separator. The first separator removes objects above a first size, to produce a stream of primary treated slurry. The second separator removes objects above a second size from the primary treated stream, the second size being smaller than the first size. Optionally, a third separator removes objects above a yet smaller third size from the stream of secondary treated slurry. The first separator has a plurality of sieve mat supports alternately connected to a main support frame section and a movable support frame section so that the flexible sieve mat can be agitated by the movable support frame section, a collector being provided for collecting the primary treated slurry passing through the flexible sieve mat. In an optional step, water contained in the separated solids is removed.Type: ApplicationFiled: November 9, 2012Publication date: March 14, 2013Inventors: Michael K. HODGES, Larry D. Campbell
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Publication number: 20130048569Abstract: The present invention relates to an apparatus for inhibiting scale formation and microorganism growth within a moving water system, with the apparatus including: (i) a pulse-power assembly having a fly-back pulse generator circuit effective to produce a current pulse that when terminated yields a voltage spike and generates a plurality of frequencies of energy, where the fly-back pulse generator circuit comprises a coil as an integral portion of the fly-back pulse generator circuit; and (ii) a chamber for passing water from the moving water system therethrough, where the coil is wound around the chamber so as to transmit the plurality of frequencies of energy into the chamber in order to inhibit scale formation and microorganism growth within the moving water system. Water treatment systems and methods of using the apparatus are also provided.Type: ApplicationFiled: August 30, 2012Publication date: February 28, 2013Applicant: ENVIRONMENTAL ENERGY TECHNOLOGIES, INC.Inventors: Ali OGUT, Richard J. BACKUS
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Publication number: 20130026105Abstract: Scaling is controlled in a cooling water system with CO2 based upon measurements of the cooling water's pH, alkalinity and Ca2+ concentration.Type: ApplicationFiled: October 1, 2012Publication date: January 31, 2013Applicant: American Air Liquide, Inc.Inventors: Daniel D. DUARTE, Meenakshi Sundaram, Jeffrey E. Arbogast
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Patent number: 8349189Abstract: Method for the preparation of at least one compound with biological properties from blood, where said method is performed in sealed tubes at a pressure below atmospheric pressure, thereby reducing or preventing the bacterial contamination of the compound through handling. The method comprises the repetition, for as many times as is required, of the following steps: connecting a second container that is vacuum-sealed to an extraction device connected in turn to a first container that contains blood separated into fractions, waiting for a period of time until the required fraction(s) is/are transferred, and removing said second container, with it thus being possible to obtain several second containers with different compounds for different medical applications including biological therapies. The steps may be performed in a closed system, without removing the caps of the containers, or alternatively the first container may be opened prior to the introduction of the extraction device.Type: GrantFiled: May 14, 2010Date of Patent: January 8, 2013Assignee: Biotechnology Institute, I Mas D, S.L.Inventor: Eduardo Anitua Aldecoa
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Publication number: 20120328492Abstract: A method inhibits the formation of zirconium molybdate precipitate in an aqueous solution containing the element molybdenum and the element zirconium by adding a chemical element selected from plutonium, tellurium, antimony and mixtures thereof with the aqueous solution. The method can be used for reprocessing used fuels with the element molybdenum and the element zirconium.Type: ApplicationFiled: October 27, 2010Publication date: December 27, 2012Applicant: AREVA NCInventor: Alastair Magnaldo
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Publication number: 20120318745Abstract: Methods for inhibiting, preventing, and disrupting flocculations in wastewater treatment streams.Type: ApplicationFiled: June 18, 2012Publication date: December 20, 2012Applicant: MULTIFORM HARVEST INC.Inventor: Keith E. Bowers
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Patent number: 8277660Abstract: Disclosed are embodiments of a method and apparatus for the treatment of water containing silica in order to recover as much treated water from a water source as possible while minimizing the generation of waste products. Other embodiments include removing specific elements from the water source and utilizing those elements. Embodiments of the method and apparatus uses in-line physical and physio-chemical treatment methods to remove potential biological, colloidal and hardness foulants continually so that there is minimal loss of water from the water source stream and minimal addition of chemicals to accomplish removal or reduction of these potential recovery-limiting foulants.Type: GrantFiled: March 12, 2011Date of Patent: October 2, 2012Assignee: CDM Smith IncInventors: Robert J. Kimball, Kenneth A. Klinko
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Patent number: 8236181Abstract: The amount of silica in cooling tower water is reduced by passing cooling tower water through a column of silica gel.Type: GrantFiled: May 3, 2010Date of Patent: August 7, 2012Assignee: Los Alamos National Security, LLCInventors: Enid J. Sullivan, Bryan J. Carlson, Robert M. Wingo, Thomas W. Robison
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Patent number: 8236204Abstract: A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.Type: GrantFiled: March 11, 2011Date of Patent: August 7, 2012Assignee: Wincom, Inc.Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
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Patent number: 8236205Abstract: A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents.Type: GrantFiled: March 11, 2011Date of Patent: August 7, 2012Assignee: Wincom, Inc.Inventors: William N. Matulewicz, Peter F. Vogt, James E. Milawski
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Publication number: 20120189711Abstract: Extracorporeal systems and methods for treating blood-borne diseases in a subject or for developing drugs to treat blood-borne diseases include various environmental and treatment modules that can be tailored to a specific disease or infection. In certain embodiments of the systems and methods, a blood sample is treated with hydrostatic pressure, a pulsed electrical field, a pharmaceutical agent, microwave, centrifugation, sonification, radiation, or a combination thereof, under environmental conditions that are effective for the treatment.Type: ApplicationFiled: January 9, 2012Publication date: July 26, 2012Applicant: Somerset Group Enterprises, Inc.Inventors: David G. Greenberg, Scott Puritz, Tatiana Koutchma, Juan N. Walterspiel
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Publication number: 20120175313Abstract: Systems and methods are provided for automatically adjusting the operational parameters of a blood separation procedure. A blood separation device has an inlet for passing fluid thereinto and an outlet for removing fluid therefrom. A pump system is provided for moving fluid into and out of the device. In use, blood is conveyed into the device, where platelets are separated from at least a portion of the blood. A controller determines the amount of platelets in the device. Based at least in part on the amount of platelets in the device, corrective action is taken to avoid platelet aggregation in the device. The corrective action may be conveying an elevated amount of anticoagulant into the blood and/or the device and may be initiated when the determined amount of platelets approaches, meets, or exceeds a threshold predicted likelihood of platelet aggregation.Type: ApplicationFiled: January 6, 2012Publication date: July 12, 2012Inventors: John W. Barry, JR., Brian C. Case, Lan T. Nguyen
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Publication number: 20120152761Abstract: Wastewater containing soluble selenium is treated in a bioreactor. Microorganisms in the reactor reduce the selenium to elemental selenium, which is insoluble. The elemental selenium is discharged from the reactor in waste sludge. The sludge is treated to recover selenium. In one method, the sludge is washed with chemicals, for example surfactants, and agitated to disrupt the adhesion of the selenium particles to the cells. The selenium particles are then separated from the cells using a physical separation process such as a centrifuge or differential filtration. In another method, the sludge is de-watered or dried to a very high solids content. The selenium particles are dissolved using an oxidizer under high pH conditions. A solids fraction is removed from the resulting slurry. A resulting selenium brine is further refined to recover the selenium.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Inventors: Timothy Michael Pickett, Jill Noreen Sonstegard
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Publication number: 20120086136Abstract: An aeration apparatus is immersed in diluted used seawater which is water to be treated and generates fine air bubbles in the diluted used seawater. The aeration apparatus includes: an air supply line L5 having branch pipes L5A to L5H for supplying air 122 through blowers 121A to 121D serving as discharge unit; aeration nozzles 123 including diffuser membranes 11 having slits, through which the air 122 is supplied to the aeration nozzles 123 via headers 15 of the branch pipes L5A to L5H; a water tank 140 and a supply pump P1 that are used as water introducing unit for supplying water 141 to the air supply line L5. When pressure loss of the aeration nozzles 123 increases, the aeration apparatus stops introduction of the air 122 and supplies the water 141 into the branch pipes L5A to L5H branched from the air supply line L5.Type: ApplicationFiled: January 27, 2011Publication date: April 12, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keisuke Sonoda, Shozo Nagao
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Patent number: 8153010Abstract: Scaling is controlled in a cooling water system with CO2 based upon measurements of the cooling water's pH, alkalinity and Ca2+ concentration.Type: GrantFiled: January 12, 2009Date of Patent: April 10, 2012Assignee: American Air Liquide, Inc.Inventors: Daniel D. Duarte, Meenakshi Sundaram, Jeffrey E. Arbogast
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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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Publication number: 20120048808Abstract: The present invention provides a polymeric scale inhibitor, wherein said inhibitor comprises at least one boron atom.Type: ApplicationFiled: May 5, 2010Publication date: March 1, 2012Applicant: ABSOLUTE PETRO HYDRO TECH CO. LTDInventors: Kang Zhou, Li Chen
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Publication number: 20120031849Abstract: A reaction tank useful for precipitating struvite from aqueous solutions such as wastewater comprises an aeration system. The aeration system includes air diffusers in the reaction tank. The air diffusers are located at a level below an outlet of the reaction tank. The airflow control mechanism comprises means for automatically controlling the flow of the stripping gas from the diffusers. The airflow control mechanism may be configured to automatically control the flow of stripping gas in response to a signal from a sensor measuring the pH of the aqueous solution the alkalinity of the aqueous solution or the concentration of dissolved carbon dioxide in the aqueous solution.Type: ApplicationFiled: February 4, 2011Publication date: February 9, 2012Applicant: OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC.Inventor: Ahren Britton
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Publication number: 20120024796Abstract: A sustainable method and system for treating and maintaining bodies of water at low cost for low density recreational use is disclosed. A system of the invention generally includes at least one containing means, at least one coordination means, at least one chemical application means, at least one non-intrusive mobile suction means, and at least one filtration means. The coordinating means can receive information regarding water quality parameters that are controlled, and can timely activate the processes necessary to adjust the water quality parameters within their respective limits. The disclosed methods and system filter only a small fraction of the total water volume, up to 200 times less per day than the flow filtered by conventional swimming pool filtration systems. The disclosed methods and system also use less chemicals, up to 100 times less than conventional swimming pool water treatment systems.Type: ApplicationFiled: August 1, 2011Publication date: February 2, 2012Applicant: Crystal Lagoons Corporation LLCInventor: Fernando Banjamin Fischmann T.
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Publication number: 20120024782Abstract: A method for enhancing biodegradation of oil in water, the method comprising: positioning a hollow structure in water, the hollow structure comprising an inlet and at least one outlet; and introducing an oxygen-containing fluid into the inlet of the hollow structure so that the oxygen-containing fluid exits from the hollow structure and engages the oil, wherein the oxygen-containing fluid engages the oil with sufficient force so as to cause a mechanical dispersion of the oil.Type: ApplicationFiled: May 18, 2011Publication date: February 2, 2012Inventors: William E. Baird, Patricia W. Baird
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Patent number: 8092884Abstract: A single layer fuel tank includes a polyamide component, an impact modifier, and a binding filler. The polyamide component has a polyamide selected from the group of polyamide 6, polyamide 6/6, polyamide 6/66, and combinations thereof. The polyamide component also includes up to 5 parts by weight of polyamide oligomers per 100 parts by weight of the polyamide component. The impact modifier is an organic copolymer and is present in an amount of up to 30 parts by weight per 100 parts by weight of the fuel tank. The binding filler is not covalently bonded to the polyamide and includes at least one of a silica and a cyclodextrin. In addition, the binding filler is present in an amount of up to 10 parts by weight per 100 parts by weight of the fuel tank.Type: GrantFiled: July 2, 2009Date of Patent: January 10, 2012Assignee: BASF SEInventors: Zhenguo Liu, Stephen J. Hanley, Frank Aadahl
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Patent number: 8088287Abstract: An automatic, self-regulating method of water treatment for use in water circulating towers in which water is evaporated, and make up water is added, with components which synergistically function to cut chemical, energy, water, corrosion, pollution, and maintenance costs, by passing the water through a Water Conditioning unit to prevent adhering evaporation scale deposits along with their content of concentrated biofouling nutrients from forming on the flooded surfaces of the tower and its associated water flow circuit, adding a trace level of iodine to the input make-up water to enhance the further disinfection of nutrient-deprived surfaces from any residual biofilm and chance pathogen contaminations, and adding a trace level addition of zinc ions in the water such as by an assured treatment feeder to the input make-up flow for inhibiting residual iodine-resistant algal and bacterial organisms of hazard for restoring bionutrient tower conditions, such as within sun-lit environments, and apparatus for carryiType: GrantFiled: October 10, 2006Date of Patent: January 3, 2012Assignee: Evandtec, Inc.Inventors: Frederick James Dart, John Owen Richmond
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Publication number: 20110309027Abstract: A method for degrading chlorinated-organic pollutant comprises the steps of providing a chlorinated-organic pollutant contaminated medium having at least one chlorinated-organic pollutant of high concentration; adding a biodegradable surfactant into the chlorinated-organic pollutant contaminated medium to enable the chlorinated-organic pollutant of high concentration to reduce surface tension and increase solubility, and makes the chlorinated-organic pollutant of high concentration dissolve in water easily; adding a persulfate (S2O82?) into the chlorinated-organic pollutant contaminated medium; and adding a slag powder into the chlorinated-organic pollutant contaminated medium to produce a plurality of transition metal ions, and the transition metal ions catalyze the persulfate to generate sulfate radical (SO4?. ) to oxidize the chlorinated-organic pollutant of high concentration of the chlorinated-organic pollutant contaminated medium.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Inventors: Chih-Ming Kao, Tzai-Tang Tsai, Rao Y. Surampalli
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Patent number: 8066846Abstract: The invention relates to a stabilizing composition comprising following components (A) a polymer having the following formula: wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, (C) a poly-alpha-hydroxyacrylic acid or an alkaline salt thereof or the corresponding polylactone thereof, and (D) optionally a polycarboxylic acid polymer or an alkaline salt thereof. The invention also relates to a process for the treatment of a fiber material.Type: GrantFiled: January 31, 2008Date of Patent: November 29, 2011Assignee: Kemira OyjInventors: Aarto Parén, Jukka Jäkärä, Jukka Rautiainen, Reijo Aksela, Ilkka Renvall, Anna Ilomäki, Minna Sankari, Anna Sundquist, Heli Virkki, Hannu Hämäläinen
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Patent number: 8048264Abstract: The present invention relates to a stabilizing composition comprising following components (A) a polymer having following formula wherein R1 is a hydrogen atom or an alkyl group containing 1 to 12 carbon atoms, R2 is —COOM or —CH2COOM, M is a hydrogen atom, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or a mixture thereof, n, m and k are molar ratios of corresponding monomers, wherein n is 0 to 0.95, m is 0.05 to 0.9, and k is 0 to 0.8, and (n+m+k) equals 1, and the weight average molecular weight is between 500 and 20,000,000 g/mol, (B) a chelating agent, and (C) an alkaline earth metal compound. The invention also relates to a process for the treatment of a fiber material.Type: GrantFiled: May 10, 2005Date of Patent: November 1, 2011Assignee: Kemira OyjInventors: Aarto Parén, Jonni Ahlgren, Jukka Jäkärä, Ilkka Renvall, Jukka Rautiainen
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Patent number: 7967989Abstract: A sulfurous acid treated wastewater disposal method employing soil aquifer treatment (SAT) for artificial recharge of groundwater through infiltration basins allowing fully or partially-treated sewage effluent to infiltrate into the soil and move down to the groundwater through a “vadose” zone, which acts as a natural filter to remove essentially all suspended solids, biodegradable materials, bacteria, viruses, and other microorganisms.Type: GrantFiled: March 10, 2009Date of Patent: June 28, 2011Assignee: Earth Renaissance Technologies, LLCInventors: Terry Gong, John Harmon, Marcus G. Theodore
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Patent number: 7960455Abstract: Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.Type: GrantFiled: June 14, 2006Date of Patent: June 14, 2011Assignee: BASF AktiengesellschaftInventors: Stephan Nied, Karl-Heinz Buechner, Marcus Guzmann
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Publication number: 20110137465Abstract: A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and/or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and/or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.Type: ApplicationFiled: April 9, 2010Publication date: June 9, 2011Inventors: Jerome F. Angelilli, Patrick D. Guccione, Billy E. Pierce, Daniel Wai-tak Wong, John H. Williams
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Patent number: 7955853Abstract: Disclosed is a method of creating a real-time oxidation-reduction potential signature in a hot water system to detect REDOX stress and 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 analyzes and interprets the transmitted potential to create an oxidation-reduction potential signature for the hot water system. If the signature does not conform to an 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: June 7, 2011Assignee: Nalco CompanyInventors: Peter D. Hicks, David A. Grattan
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Patent number: 7943058Abstract: Tagged scale-inhibiting polymers, compositions comprised thereof and preventing or controlling scale formation therewith, the tagging units being units deriving from a monomer having the formula X2C?CYY? wherein X is a hydrogen atom, or a C1-C4 alkyl radical, Y is a hydrogen atom or a C1-C4 alkyl radical, Y? is a radical having formula -L-Arom, wherein L is a covalent bond or a divalent organic linking group optionally comprising heteroatoms, and Arom is a group comprising at least two conjugated aromatic rings, said rings comprising conjugated carbon atoms, and, linked to said carbon atoms, hydrogen atoms or other substituents.Type: GrantFiled: June 25, 2004Date of Patent: May 17, 2011Assignee: Rhodia ChimieInventors: Emma Hills, Pascal Chapon
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Publication number: 20100300218Abstract: A method for reducing corrosion product transport in a power producing facility. The method includes the steps of selecting a chemical dispersant adapted to reduce the deposition of corrosion products in the recirculation path, and using at least one chemical injector to inject the chemical dispersant into a fluid contained in the recirculation path during recirculation path cleanup to increase corrosion product removal.Type: ApplicationFiled: May 18, 2010Publication date: December 2, 2010Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.Inventors: Keith Paul Fruzzetti, Charles Marks
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Publication number: 20100288706Abstract: Method for the preparation of at least one compound with biological properties from blood, where said method is performed in sealed tubes at a pressure below atmospheric pressure, thereby reducing or preventing the bacterial contamination of the compound through handling. The method comprises the repetition, for as many times as is required, of the following steps: connecting a second container that is vacuum-sealed to an extraction device connected in turn to a first container that contains blood separated into fractions, waiting for a period of time until the required fraction(s) is/are transferred, and removing said second container, with it thus being possible to obtain several second containers with different compounds for different medical applications including biological therapies. The steps may be performed in a closed system, without removing the caps of the containers, or alternatively the first container may be opened prior to the introduction of the extraction device.Type: ApplicationFiled: May 14, 2010Publication date: November 18, 2010Applicant: BIOTECHNOLOGY INSTITUTE, I MAS D, S.L,Inventor: Eduardo Anitua Aldecoa
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Patent number: 7762980Abstract: A treatment assembly is positioned along an AV-fistula and couples therapeutic energy to an adjacent area due to a material response to an applied energy field from a remotely located energy source. The treatment assembly may be delivered into the fistula through a hemodialysis needle, or may be secured to the fistula graft itself and implanted therewith in a patient. A cover provides a shield between an anastomosis area and blood flow. Another AV-fistula includes a valved reservoir that receives a fluid agent from a hemodialysis needle while moving the needle into or from the fistula; the agent leaks from the reservoir into the fistula lumen. Another valved fistula is adjustable between an open condition and closed conditions during and between hemodialysis treatments, respectively. Another AV-fistula has a bladder reservoir coupled to a second refillable fluid reservoir and is adapted to locally deliver a therapeutic agent into the fistula lumen.Type: GrantFiled: June 19, 2006Date of Patent: July 27, 2010Inventor: Michael Gertner
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Publication number: 20100181252Abstract: The present invention relates to a method for purifying a liquid, comprising the steps of:—supplying a flow of liquid for purifying;—adding a crystal growth inhibitor;—purifying the flow;—separating the flow into a purified flow and a return flow; and—concentrating the crystal growth inhibitor, present in the return flow, in a crystallizerType: ApplicationFiled: March 5, 2008Publication date: July 22, 2010Inventors: Mateo Jozef Jacques Mayer, Sybrandus Jacob Metz, Maarten Markus Nederlor, Johannes Kuipers