Chlorine Or Bromine Containing Patents (Class 210/754)
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Patent number: 7601266Abstract: A biofilm reducing agent (BRA) and a mineral deposit distorting agent (MDDA) are admixed to irrigation water in amounts sufficient to substantially eliminate biofilm formation in the emitters (14) of an irrigation system (10) and produce amorphous mineral deposits in the emitters that are easily washed away by the irrigation water as it flows through the emitters (14). The BRA may be an oxidizer selected from the group consisting of chlorine, ozone, chlorine dioxide, hydrogen peroxide, hydroxy peracitic acid, iodine, bromine, hydrogen dioxide, chlorate salts, chlorite salts and hypochlorite compounds and mixtures thereof. The MDDA is a phosphonate selected from the group comprising AMP, ATMP, HEDP, EDTMPA, HMDTMPA, DETPMPA, BHMPTMPA, PBTC, HPA, PCA, NTMP, and DTPMP.Type: GrantFiled: April 20, 2006Date of Patent: October 13, 2009Assignee: CH2O IncorporatedInventor: Carl E. Iverson
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Publication number: 20090242484Abstract: This is a method that is an environmentally friendly hybrid microbiological control compromising a physical method through fine filtration, which removes nutrients, bacteria and suspended solids from open recirculating cooling systems. The method for microbiological control in cooling systems wherein a recirculating fluid containing an oxidising or a non-oxidising biocide or a mixture of an oxidising and a non-oxidising biocide and is passed through a fine filtration system resulting in reduced microbiological matter, suspended solids and nutrients.Type: ApplicationFiled: April 1, 2008Publication date: October 1, 2009Inventors: Ana-Mariana Urmenyi, Jeroen A. Koppes, Robert L. Wetergrove, Menno J.T. van Haasterecht
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Publication number: 20090223903Abstract: The invention relates to the control of pH in water, preferably pool/spa water along with the control and/or removal of algal populations, by adding to the water a desired synergistic amount of a lanthanide-containing compound, a transition metal salt ions sufficient to bind with hydroxyl into a slightly soluble or insoluble reaction product, thereby removing sufficient hydroxyl ion from the water to lower the pH thereof, and copper and/or silver to act as an algicide and potential pH affecting compound.Type: ApplicationFiled: September 25, 2008Publication date: September 10, 2009Inventors: Richard T. Coffey, Kenneth Jenke, Robert Harnden, Matthew R. Hodges, Luis Fernando DelCorral
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Patent number: 7575691Abstract: A composition and method for cleaning, sanitizing and maintaining contained bodies of water such as swimming pools, wading pools, fountains, ornamental ponds, etc. The composition includes pre-determined percentages of copper sulfate, zinc sulfate, and aluminum sulfate by weight. The composition and method reduce amounts of chlorine and an amount of labor associated with the cleaning, sanitization and maintenance of contained bodies of water.Type: GrantFiled: July 30, 2007Date of Patent: August 18, 2009Inventors: David J. Moore, William C. Betts
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Patent number: 7572378Abstract: A process for irrigation involves monitoring reclaimed water, and treating it when necessary. The reclaimed water is tested with monitors to obtain results for water quality characteristics, including: pH; residual chlorine; and, sodium. These results are inputted to a computerized data handling system for data collection, storage and analysis for comparison to predetermined acceptable ranges for water quality characteristic, and to show any deviation from said acceptable ranges. Either alarms are set off or treatment occurs or both, when deviations are observed. Treatment includes a dechlorination system to correct active chlorine, and, optionally, an oxidation system. There is also a reverse osmosis step for reduction of salts, such as sodium. Other monitors may include one or more of hardness; turbidity; alkalinity; conductivity and nitrates.Type: GrantFiled: December 15, 2005Date of Patent: August 11, 2009Assignee: Turf Sentry, Inc.Inventors: Peter L. Rosen, Robert D. Hodges
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Publication number: 20090184062Abstract: The growth of biofilm present in open recirculating water systems is inhibited by introducing into the water comprising such a water system (a) a source of free halogen, e.g. e chlorine and (b) a source of di(lower alkyl) substituted-2-oxazolidinone, the mole ratio of (a) to (b) and the combined amount of (a) and (b) being sufficient to at least inhibit the growth of the biofilm, e.g., the bacteria comprising the biofilm, the source of free available halogen being present in less than biostatic amounts.Type: ApplicationFiled: January 21, 2008Publication date: July 23, 2009Applicant: PPG INDUSTRIES OHIO, INC.Inventor: Stanley R. Pickens
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Patent number: 7560033Abstract: A composition comprising a stable anhydrous mixture of an oxidizing agent and an active halogen agent wherein the oxidizing agent is potassium hydrogen peroxymonosulfate and the active halogen agent is an alkali metal salt of dichloro-s-triazinetrione, halogenated dimethylhydantoin, or mixtures thereof, and a method of treating water with such compositions are disclosed.Type: GrantFiled: October 13, 2004Date of Patent: July 14, 2009Inventors: Edward Blake Lightcap, Michael Brian Coxey, Thomas Peter Tufano
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Publication number: 20090173697Abstract: Monochloramine is efficiently manufactured by introducing controlled quantities of an ammonia source and a chlorine source in a small side-stream of water in a small diameter pipe under turbulent flow conditions. The ammonia source and chlorine source can be injected in either order and are separated by a sufficient distance to ensure that the first chemical is adequately diffused throughout the water prior to the injection of the second chemical. A sufficient length of a mixing chamber insures that turbulent flow is maintained for a length of time sufficient to thoroughly mix the two chemicals to produce monochloramine. This mixing technique allows for the manufacture of high concentrations of monochloramine at atmospheric pressure without off gassing.Type: ApplicationFiled: January 30, 2009Publication date: July 9, 2009Inventors: Stephen Axtell, Robert Cumming, Sam M. Jaffe, Jerry Johns, Robert Kim, Joe Phillips
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Publication number: 20090173696Abstract: In an activated sludge treatment of organic waste water, excess sludge from the activated sludge aeration vessel is processed with hypochlorous acid in place of ozone without set up of aeration vessels and blowers to improve volume reduction cost of sludge without deterioration of water quality. The hypochlorous acid process is carried out by using an acidulous sodium hypochlorite aqueous solution which is prepared by mixing sodium hypochlorite aqueous solution with a dilute hydrochloric acid and diluting the resulting mixture with water within 1,000 ppm to 50,000 ppm of available chlorine concentration at a pH zone of more than 4 to less than 7.Type: ApplicationFiled: March 26, 2007Publication date: July 9, 2009Applicant: ES. Technologies Corp.Inventors: Tugio Tachikawa, Hiroshi Tachikawa, Hideo Tachikawa
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Patent number: 7553420Abstract: A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating compound, which both decreases the amount of gaseous H2S and puts the aqueous phase into a pH range where naturally occurring bacteria can more easily metabolize the sulfide. The composition also includes one or more nitrate salts which will accomplish longer term prevention of odors. Specific bacteria are incorporated into the formulation to insure that the nitrate has the right type and amount of bacteria present to prevent formation of and/or consume sulfide.Type: GrantFiled: September 21, 2007Date of Patent: June 30, 2009Assignee: Siemens Water Technologies Corp.Inventors: Gregory D. Simpson, Glenn W. Holden
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Publication number: 20090159538Abstract: A method of treating water with chlorine dioxide (ClO2), by: surrounding a reaction chamber, in which the ClO2 is generated, with water, wherein the water surrounding the reaction chamber is simultaneously the water to be treated; and passing a reaction solution comprising the ClO2 formed in the reaction chamber out of the reaction chamber through an outlet directly into the water, thus treating the water.Type: ApplicationFiled: December 19, 2008Publication date: June 25, 2009Applicant: Infracor GmbHInventor: Hans DUVE
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Publication number: 20090159536Abstract: A method of removing contaminants from slurry samples is set forth. The method includes the utilization of repeated pressurizing and depressurizing steps to disrupt solidified particles in solid-containing slurries thereby increasing decontamination efficiency. An expansion fluid is injected into the slurry sample sufficient to create microbubbles when the slurry sample is depressurized. The micro bubbles mechanically disrupt the solidified particles increasing contaminant exposure. The microbubbles also provide for increased interfacial regions where contaminants can accumulate at gas-liquid thin films that are in close proximity to and can be effectively removed using a suitable expansion fluid and optional decontamination agents.Type: ApplicationFiled: April 11, 2007Publication date: June 25, 2009Inventor: Andy P. K. Hong
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Publication number: 20090145857Abstract: An efficient cyclic process and related compositions for the in-situ generation of oxyhalogens from anions of chloride, bromide and chlorite in an aqueous system using in-situ generated sulfate free radicals. The cyclic process and compositions enhance the rate of inactivation of microbiological organisms especially those resistant to inactivation from free halogen based sanitizers, and oxidation of oxidation resistant organic based compounds in aqueous solution. Aquatic facilities susceptible to accumulation of organic N-chloramines and other oxidation resistant compounds, as well as oxidation resistant parasitic organisms such as cryptosporidium and Giardia, obtain dramatic improvements in the rate of oxidation and subsequent inactivation of these undesirable contaminants.Type: ApplicationFiled: December 18, 2008Publication date: June 11, 2009Inventor: Roy W. Martin
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Patent number: 7540966Abstract: The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in the device using a venturi nozzle disposed between the metal generator and the hypohalite generator.Type: GrantFiled: December 10, 2007Date of Patent: June 2, 2009Assignee: Zodiac Pool Care, Inc.Inventors: Alvin Costa, Richard T. Coffey, Michael Pereira, Daniel Nelsen, Thomas Parent, Christopher Kampf
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Patent number: 7534367Abstract: A method of treating a peroxygen compound (e.g., potassium monopersulfate) for use in applications where controlled release rate, exposure to incompatible compounds, and/or moisture is presented. The method incorporates coating the peroxygen compound with one or more of the following polymers: 1) chitin/chitosan, 2) carboxylate/sulfonate copolymer or tertiary polymer, and 3) carboxylate polymer selected from polymaleic acid, polyepoxysuccinic acid and/or phosphinocarboxylate polymers. Optionally, the peroxygen compound is also coated with an inorganic salt layer and a silicate layer. Potassium monopersulfate coated with an organic polymer is useful in reduced allergenic formulations and as an anti-caking agent. When the organic polymer is a polysaccharide, the coated potassium monopersulfate is also effective for shock treatment of water systems (e.g., pools). The oxidizing composition prepared with this method has a prolonged shelf life while demonstrating good solubility during use.Type: GrantFiled: June 28, 2004Date of Patent: May 19, 2009Assignee: Truox, Inc.Inventor: Perry L. Martin
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Patent number: 7531360Abstract: A selective method of dechlorination treatment of circulating water containing disinfectant chlorine in the form of ClO?,HClO, ClO2 or chloramine, where an ascorbic acid aqueous solution is injected from a storage reservoir into the water flow, the mass flow rate of the injected ascorbic acid solution being regulated with respect to the mass flow rate of the chlorine in the circulating water to be treated, in such a way that the ratio (R) of the ascorbic acid and chlorine mass flow rates (R=D1/ D2) is between 2.5 and 4, preferably less than or equal to 3. The method can be used for treatment of water that feeds into a biological detector containing a disinfectant chlorine content that is incompatible with the survival of the biological species used in the detector. The disinfectant chlorine level in the circulating water after mixing is maintained at a value lower than or equal to 0.6 mg/l, and preferably lower than or equal to the detectable limit.Type: GrantFiled: June 27, 2006Date of Patent: May 12, 2009Assignee: Societe des Eaux de MarseilleInventors: Jean-Luc Boudenne, Bruno Coulomb, Gerard Lieutaud
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Publication number: 20090107917Abstract: A system for purifying non-potable water to make said water potable includes an intake pump for bringing the non-potable water into the system. At least one centrifugal separator separates the non-potable water into suspended solids, saline water and oil. At least one ozone contact chamber injects ozone into a water stream being injected into at least one of the at least one of the centrifugal separators. A series of progressive filtration components are used for progressively filtering the saline water from the at least one centrifugal separator. The salinization filters then desalinate the progressively filtered saline water.Type: ApplicationFiled: October 24, 2008Publication date: April 30, 2009Inventor: DAVID CAPEHART
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Publication number: 20090101593Abstract: A method for providing biological control to a flow of water in a recirculating potable hot water system. In such a system, water is subjected to an initial chemical treatment using an oxidizing biocide such as chlorine dioxide or peracetic acid that rapidly kills biofilm and Legionella bacteria. This treatment is continued until existing Legionella bacteria and biofilm are controlled. Once the bacteria and biofilm are controlled the chemical treatment is stopped. Starting concurrently with the chemical treatment or at the termination of the chemical treatment, non-chemical water treatment is provided. The non-chemical water treatment maintains the water system in a condition which is free of Legionella bacteria and biofilm. Chemical water treatment may be repeated intermittently should it prove desirable or necessary.Type: ApplicationFiled: November 14, 2008Publication date: April 23, 2009Inventors: John Dresty, David Alley
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Patent number: 7517456Abstract: Methods for treating landfill leachate taught herein comprise: (a) coagulatively settling leachate; (b) filtering the resultant supernatant liquid through multistage cartridges; (c) filtering the filtered liquid by reverse osmosis; and (d) treating the resultant liquid with chlorine-based oxidant. These methods provide the advantages of efficient wastewater treatment, compact equipment size, short process flow, and low startup and operational costs.Type: GrantFiled: July 4, 2006Date of Patent: April 14, 2009Assignee: Shenzhen JDL Environmental Protection Ltd.Inventors: Zhi Min Liao, Jing Kui Guo, Yu He Huang, Jing Zou, Zhi Qiang Chen, Rui Zhi Dai, Wen Yan Shi, Jian Zhong Xiong, Hai Ying Ji
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Patent number: 7517460Abstract: A circulation system for bodies of water. In one set of embodiments for larger bodies of water, modified horizontal plate designs are provided at the entrance of the draft hose. The plate designs have sections that pivot downwardly as the flotation platform and depending draft hose are rapidly raised in high wave conditions to let the water escape downwardly out of the hose. Adaptations to the floats for the elongated arms of the platform are also made to essentially eliminate the creation of any damaging torques on them from high waves. Another set of embodiments are particularly adapted for smaller systems in municipal water tanks for thorough mixing of the water and treatment to kill undesirable ammonia oxidizing bacteria and prevent or at least inhibit their return.Type: GrantFiled: April 9, 2007Date of Patent: April 14, 2009Assignee: Medora Environmental, Inc.Inventors: Willard R. Tormaschy, Gary A. Kudrna, Corey M. Simnioniw, Joel J. Bleth, Jonathan L. Zent
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Patent number: 7514008Abstract: 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: July 24, 2006Date of Patent: April 7, 2009Assignee: Disney Enterprises, Inc.Inventors: Ivey Burnes, Thoram Charanda, Thomas J. Nicodemo, Richard Davis, Janell Crowder
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Publication number: 20090078654Abstract: Conversion of an untreated liquid to a clean harmless treated liquid through microbe removal, characterized in that a mechanical treatment for damaging microbes present in a liquid to thereby effect extinction thereof and sterilization, combined with a chlorination in which a chlorine-containing substance is formed from a liquid and injected into a liquid to thereby effect microbe extinction and sterilization, is applied to a liquid. There is further provided an electrolytic circulation system comprising applying a detoxification treatment for extinction of microbes in seawater and sterilization by means of detoxification facilities on land or on the sea to seawater introduced through a seawater introduction channel and accommodating the seawater having been thus treated in a ballast water tank. As a result, facility and operating costs can be reduced. Extinction of microbes of unlimited size and sterilization can be securely achieved without any strength drop on the side of treated liquid accommodation body.Type: ApplicationFiled: November 19, 2008Publication date: March 26, 2009Inventors: Kazuki Nishizawa, Kazuhiko Fujise, Masayuki Tabata, Kiyoshi Sugata, Ryouhei Ueda, Takashi Ueda, Hirokazu Okada, Tomoaki Oomura
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Publication number: 20090078655Abstract: A solid formulation for use with sodium chloride and a chlorine generator to provide safe, clean chlorinated recreational water. The formulation comprises a chlorine stabilizing agent and a phosphate remover agent. An enhanced salt comprising a chlorine stabilizing agent, a phosphate remover agent and sodium chloride is also described. The formulation and enhanced salt can also contain a metal chelating agent and a pH balancing agent. A cleaning agent may also be included. A fast dissolving sodium cyanurate compound is used for the chlorine stabilizing agent. A method, kit, and system for providing safe, clean chlorinated recreational water are also disclosed.Type: ApplicationFiled: December 8, 2008Publication date: March 26, 2009Applicant: Natural ChemistryInventor: Robert Kulperger
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Patent number: 7507323Abstract: A water treatment system includes a circulation pump and an electrolytic chamber in fluid communication with a main body of water. Electrolytic plates within the electrolytic chamber generate chlorine. When mineral deposits foul the electrolytic plates, water is isolated within the electrolytic chamber and a minimal amount of a pH-reducing agent is added to the electrolytic chamber to remove the mineral deposits. In a first embodiment, the pH-reducing agent is admitted on a periodic timed basis. In a second embodiment, the pH-reducing agent is added when the pH of the main body of water falls below a predetermined threshold. In both embodiments, cleaning is accomplished by adding the pH-reducing agent when the circulation pump is not operating so that the acid dwells within the electrolytic chamber for a sufficient amount of time. Activation of the circulation pump causes the pH-reducing agent to enter the main body of water.Type: GrantFiled: September 17, 2004Date of Patent: March 24, 2009Assignee: Maytal Tech, Inc.Inventor: Omer C. Eyal
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Publication number: 20090050577Abstract: A method to meter a granular chemical into water in a swimming pool provides a dispensation unit constructed to dispense a granular chemical at a selected rate per unit of time. The dispensation unit includes a device to open a container of the granular chemical. The dispensation unit functions to separate granular material for dispensation through apertures in the unit. The dispensation unit is charged with a granular chemical while the unit is upright. The unit is inverted in order to evenly distribute granular chemical on the surface of water in a swimming pool.Type: ApplicationFiled: August 18, 2008Publication date: February 26, 2009Inventor: Philip M. Htoon
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Publication number: 20090050576Abstract: A method is provided for adjusting the chlorine concentration in salt water swimming pools having a pre-existing system for re-circulating the water including at least one skimmer, a pump, a chlorine generator for generating chlorine from chloride salts, a monitor for determining the chlorine concentration of the water, and an outlet for returning water to the pool.Type: ApplicationFiled: August 20, 2008Publication date: February 26, 2009Inventor: Paul Gement
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Patent number: 7476870Abstract: Thermoplastic compositions that reflect ultraviolet light are provided herein, along with articles of manufacture and methods of fluid purification using the same. The thermoplastic compositions preferably comprise a suitable thermoplastic material and microparticles of UV reflective material, such as aluminum or stainless steel. The thermoplastic compositions are useful, for example, in forming articles of manufacture comprising a UV reflective surface that are suitable for use in a water treatment system in connection with a UV light source.Type: GrantFiled: November 12, 2007Date of Patent: January 13, 2009Assignee: Access Business Group LLCInventors: Liane B. Hopaluk, Farhod G. Baghera, Terry L. Lautzenheiser, David M. Byrne
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Patent number: 7473370Abstract: A water disinfection system using simultaneous multiple disinfectants includes a completely stirred tank reactor (CSTR) and a contact basin or clearwell acting as a plug flow reactor (PFR). The CSTR receives ammoniated water and free chlorine, and generates multiple disinfectants in primary disinfection water within the CSTR. The contact basin or clearwell receives primary disinfected water from the CSTR, the primary disinfected water containing the disinfectants. A method for water disinfection including mixing the non-disinfected treated water with ammonia to form ammoniated water, mixing the ammoniated water with free chlorine to form a primary disinfection water including multiple disinfectants, and maintaining the disinfectants in the primary disinfection water.Type: GrantFiled: December 19, 2007Date of Patent: January 6, 2009Inventor: Yao B. Kouame
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Publication number: 20090001017Abstract: A method for removing contaminant from feedwater by forming a dispersion comprising bubbles of a treatment gas in a continuous phase comprising feedwater, wherein the bubbles have a mean diameter of less than about 5 ?m and wherein the treatment gas is selected from air, oxygen, and chlorine. A method for removing contaminants from a feedwater by subjecting a fluid mixture comprising feedwater and a treatment gas to a shear rate greater than 20,000 s?1 in a high shear device to produce a dispersion of treatment gas in a continuous phase of the feedwater. A system for treating feedwater to remove contaminants therefrom is also presented, the system comprising at least one high shear mixing device comprising at least one generator comprising a rotor and a stator separated by a shear gap; and a pump configured for delivering feedwater and treatment gas to the high shear mixing device.Type: ApplicationFiled: June 19, 2008Publication date: January 1, 2009Applicant: H R D CORPORATIONInventors: Abbas HASSAN, Ebrahim BAGHERZADEH, Rayford G. ANTHONY, Gregory BORSINGER, Aziz HASSAN
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Publication number: 20080308506Abstract: A water treatment composition comprised of a metal ion yielding material secured to an adhesive, with the adhesive secured to a structure, so that when the structure is placed in a body of water the concentration of metal ions is maintained at level sufficient to kill bacteria and sufficient to permit release of metal ions over an extended period of time. Also, a method of securing a metal ion yielding material, as well as a method of manufacture of an article, by first adhering the metal ion yielding material to a structure and then forming the structure into an article for placement in a body of water to maintain the desired metal ion concentration therein.Type: ApplicationFiled: July 8, 2008Publication date: December 18, 2008Inventors: Joseph A. King, Martin Robert Edelson
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Patent number: 7465401Abstract: A method of treating chloraminated water by adding copper ions is disclosed. The addition of copper ions inhibits microbial action in the water, thus reducing nitrification of ammonia and maintaining chloramine levels.Type: GrantFiled: July 9, 2004Date of Patent: December 16, 2008Assignee: Water CorporationInventor: Laszlo Koska
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Patent number: 7465410Abstract: A reactor for an in-situ production of a chemical product in high yield are presented. The reactor, which may be placed in a main solvent, includes a core and a reactor wall around the core. The reactor wall allows controlled permeation of the main solvent to the core. The core contains a reactant that reacts to produce a target product upon being contacted by a main solvent. The target product leaves the reactor at a controlled rate. Because the amount of the main solvent that permeates into the reactor is controlled, a high concentration of the reactant is maintained inside the reactor, resulting in a higher yield of the desired chemical product than if the reactants were directly added to the body of main solvent.Type: GrantFiled: February 18, 2005Date of Patent: December 16, 2008Assignee: Truox, Inc.Inventors: Perry L. Martin, Roy W. Martin
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Patent number: 7462289Abstract: The present invention relates to improved dispensers for a tablet containing or consisting of a dissolvable composition which, when contacted with water, will elute one or more chemical compounds to the water. More particularly the present invention relates to such an improved dispenser for a tablet which according to one aspect of the invention is particularly useful with, or forms a part of a device for the treatment of water, particularly a device useful in the purification of water.Type: GrantFiled: January 11, 2006Date of Patent: December 9, 2008Assignee: Reckitt Benckiser Inc.Inventors: Francesc Ayats, David Augustus Chang, Jay Packman
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Publication number: 20080290046Abstract: A control system comprising a timer based controller and a valve wherein the timer-based controller has a fixed period and the timer based controller regularly cycles the valve between a first condition and a second condition with the first portion of the cycle directing a first flow of water through a dispensable material and the remaining portion of the cycle directing a lesser flow of water through the dispensable material.Type: ApplicationFiled: May 23, 2007Publication date: November 27, 2008Inventors: Joseph A. King, Jeffrey D. Johnson
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Patent number: 7449119Abstract: Compositions containing chlorine and/or bromine in combination with chlorine dioxide are found to be synergistic against non-tuberculosis mycobacterium such as Mycobacteria chelonae.Type: GrantFiled: July 25, 2006Date of Patent: November 11, 2008Assignee: Chemtura CorporationInventor: Geoffrey Brown
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Publication number: 20080272062Abstract: Devices and methods for inactivating microbiological contaminants in a fluid are provided for use in water, air, and other fluid treatment applications. The device includes (i) a housing having at least one fluid inlet and at least one fluid outlet; and (ii) an antimicrobial material secured in the housing between said at least one fluid inlet and said at least one fluid outlet. In one embodiment, the antimicrobial material is a biguanide dihydrate compound, such as a chlorhexidine dihydrate, which exhibits broad spectrum antimicrobial activity.Type: ApplicationFiled: July 10, 2008Publication date: November 6, 2008Applicant: WATER VISIONS INTERNATIONAL, INC.Inventors: Jan W. Gooch, Arthur W. Johnston, Arthur F. Johnston
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Patent number: 7445759Abstract: A system and method for extracting active elemental iodine from the contact of water with stored crystal iodine and for introducing the extracted elemental iodine into a water supply line and/or otherwise making the extracted elemental iodine available for an intended use. The system operates by allowing a portion of the water entering from a water supply line to be redirected to a first housing where it makes contact with stored crystal iodine causing to extract active elemental iodine. The iodinized water leaves the first housing and enters a second housing where it makes contact additional stored crystal iodine to help stabilize the elemental iodine concentration. The system can be designed to provide the elemental iodine in more than one potency concentration through the use of a metering valve and different travel routes for the elemental iodine out of the second housing.Type: GrantFiled: April 5, 2006Date of Patent: November 4, 2008Inventor: Spyros J. Papageorge
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Patent number: 7441665Abstract: The water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers, resulting in the safe, complete, and economical purification of non-potable water at low flow rates typically found in gravity feed filtration systems and at water pressures of less than 1 psig. The cartridge of the invention purifies non-potable water of bacteria, viruses, and some protozons without the need for additional power sources or risk to the consumer for exposure to chemicals that have been identified to have harmful, long-term effects. The cartridge described herein enables a gravity fed water purification system by combining the cartridge with conventional filters, such as porous diatomaceous earthen ceramic water filters or activated carbon filters packed either with granular activated carbon or block.Type: GrantFiled: October 1, 2003Date of Patent: October 28, 2008Assignee: HaloSource, Inc.Inventors: Michael A. Bridges, John P. Souza
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Publication number: 20080257832Abstract: A process for the disinfection of fully nitrified secondary effluent comprising first adding chlorine to the effluent, then adding combined chlorine.Type: ApplicationFiled: April 18, 2007Publication date: October 23, 2008Applicant: COUNTY SANITATION DISTRICTS OF LOS ANGELES COUNTYInventor: Shiaw-Jy Huitric
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Patent number: 7438815Abstract: Lipids, such as plant oils and animal fats, are effective for treatment of animal wastes to inhibit both the emission of ammonia and other odors, and the discharge of particulate matter, microorganisms, and endotoxins, therefrom. Inhibition of ammonia volatilization and particulate or microbial discharge is effected by application of an effective amount of a lipid containing composition onto the animal wastes. Moreover, when used in combination with solutions of salts of acidic proton donors such as aluminum chloride, aluminum nitrate, and alum, these lipids significantly improve the effectiveness of the proton donors to inhibit the release of ammonia and reduce phosphorous solubility.Type: GrantFiled: December 15, 2006Date of Patent: October 21, 2008Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Philip A. Moore, Jr.
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Patent number: 7438817Abstract: A wastewater treatment system comprising separation unit operations inhibits or promotes the formation and precipitation of species by controlling the pH of wastewater to be treated entering into the separation unit operations. The separation unit operations include first and second reverse osmosis devices. The first reverse osmosis device treats wastewater having pH that is less than about 3.5 and the second reverse osmosis device treats wastewater, from the first reverse osmosis device, having a pH that is about 6 or higher.Type: GrantFiled: July 26, 2004Date of Patent: October 21, 2008Assignee: OTU SAInventors: Lnsp Nagghappan, Robert P. Helwick
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Publication number: 20080237147Abstract: Systems and methods for water extraction and purification are disclosed. In one embodiment of the invention, a system includes at least one water lifting unit that fluidly communicates with a groundwater source, and a gas generator that is fluidly coupled to the at least one water lifting unit to generate a gas that buoyantly moves water from the groundwater source to a water consumer.Type: ApplicationFiled: November 7, 2007Publication date: October 2, 2008Inventors: Michael J. Harrington, Katherine Reinleitner
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Publication number: 20080230094Abstract: The invention is a method to inhibit the growth of at least one microorganism in an aqueous system capable of supporting such growth. This includes controlling, and preferably preventing, slime formation in the aqueous system. The method mixes a persulfate salt, a bromide salt, and water under conditions sufficient to form an active bromine-containing, [Br+], solution and then adds an effective amount of the active bromine-containing solution to an aqueous system to inhibit the growth of at least one microorganism in the aqueous system. Also, the invention is a method to inhibit the growth of at least one microorganism on a substrate capable of supporting such growth. The method contacts the substrate with an effective amount of active bromine-containing solution to inhibit the growth of at least one microorganism on the substrate. Combining an amine source with the persulfate salt and bromide salts generates an active bromine-containing solution which also contains bromamines.Type: ApplicationFiled: March 23, 2007Publication date: September 25, 2008Applicant: Buckman Laboratories International, Inc.Inventors: Xiangdong Zhou, Thomas E. McNeel
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Publication number: 20080210641Abstract: A system for reducing or preventing the growth of organisms in the process water used to coat glass fibers with a formaldehyde-free binder composition. One or more biocides is added to the process water that mitigates the growth of microbes in the water. The biocides are added in an amount sufficient to minimize growth of organisms without adversely affecting the application of the binder composition to the glass fibers.Type: ApplicationFiled: July 16, 2007Publication date: September 4, 2008Inventor: Michael William Miks
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Patent number: 7407642Abstract: A method generating chlorine dioxide is provided. The method uses sodium chlorite solution and diluted sulfuric acid to generate chlorine dioxide with a significantly higher rate of conversion of chlorite to chorine dioxide than has been previously reported with sulfuric acid/chlorite chlorine dioxide generation.Type: GrantFiled: March 10, 2006Date of Patent: August 5, 2008Assignee: Bio-Chem ResourcesInventors: Frederick P. Mussari, David Francis, Wilfried Schmitz
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Patent number: 7404902Abstract: A composition for treating water contained in enclosures, such as swimming pools, spas, whirlpool tubs and cooling towers, which includes at least one boron compound, cyanuric acid, at least one mineral remover and at least one clarifier is provided. A composition and method for treating salt water contained in enclosures using halogen generators to generate sterilizing halogen in situ, wherein the method includes adding to the water effective amounts of a composition having at least one boron compound, cyanuric acid, at least one mineral remover and at least one clarifier, such that they are present in the water simultaneously is also provided.Type: GrantFiled: October 28, 2005Date of Patent: July 29, 2008Assignee: Haviland Consumer Products, Inc.Inventors: Don H. Girvan, Paul J. Nederveld, Arthur F. Harre, III
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Publication number: 20080164217Abstract: Conversion of an untreated liquid to a clean harmless treated liquid through microbe removal, characterized in that a mechanical treatment for damaging microbes present in a liquid to thereby effect extinction thereof and sterilization, combined with a chlorination in which a chlorine-containing substance is formed from a liquid and injected into a liquid to thereby effect microbe extinction and sterilization, is applied to a liquid. There is further provided an electrolytic circulation system comprising applying a detoxification treatment for extinction of microbes in seawater and sterilization by means of detoxification facilities on land or on the sea to seawater introduced through a seawater introduction channel and accommodating the seawater having been thus treated in a ballast water tank. As a result, facility and operating costs can be reduced. Extinction of microbes of unlimited size and sterilization can be securely achieved without any strength drop on the side of treated liquid accommodation body.Type: ApplicationFiled: February 10, 2005Publication date: July 10, 2008Inventors: Kazuki Nishizawa, Kazuhiko Fujise, Masayuki Tabata, Kiyoshi Sugata, Ryouhei Ueda, Takashi Ueda, Hirokazu Okada, Tomoaki Oomura
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Publication number: 20080156740Abstract: The invention relates to a production method for producing stable chloramine. The method allows for the production of stable chloramine with the use of concentrated Chlorine source and concentrated amine source and agitation during production. The method produces a chloramine that has a pH of at least 5 with a most preferred pH of at least 7 or greater.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Inventors: Amit Gupta, Manian Ramesh, Randall Elliott
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Publication number: 20080156739Abstract: A method and apparatus for treating a body of water to kill microorganisms by enhancing the concentration metal ions therein.Type: ApplicationFiled: December 11, 2007Publication date: July 3, 2008Inventor: Joseph A. King
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Patent number: 7387736Abstract: A method and apparatus for implementing pathogen reduction within a poultry processing or food processing plant that uses water that has been treated with chloramines at an advantageous dosagebefore being introduced to the production process at processing steps. The water treated with chloramines may be from a fresh water source or reclaimed water from the processing plant. The reintroduction of the treated reclaimed water advantageously causes a dramatic reduction in the levels of microorganisms associated with poultry processing, while substantially conserving water use.Type: GrantFiled: July 11, 2003Date of Patent: June 17, 2008Assignee: Zentox CorporationInventors: Joe D. Phillips, Robert P. Kim, Stephen P. Axtell, Sam M. Jaffe