Organic Patents (Class 210/755)
  • Patent number: 10870102
    Abstract: An object of a first aspect of the present invention is to provide a radical generating catalyst that can generate (produce) radicals under mild conditions. In order to achieve the above object, a first radical generating catalyst according to the first aspect of the present invention is characterized in that it includes ammonium and/or a salt thereof. A second radical generating catalyst according to the first aspect of the present invention is characterized in that it includes an organic compound having Lewis acidic properties and/or Brønsted acidic properties.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 22, 2020
    Assignee: ACENET INC.
    Inventors: Kiyoto Takamori, Takekatsu Shibata
  • Patent number: 10773220
    Abstract: A method and apparatus for obtaining a product chemistry from a solid block is provided. The product is housed within a dispenser, which utilizes a liquid and a gas to erode the block and produce a concentrate solution. The liquid and gas characteristics can be adjusted in the field to achieve a predetermined concentrate level in the solution. The introduction of air into the dispenser saves water, while producing higher concentrate levels.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 15, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Daniel Ronald Schwartz, Ryan Joseph Drake
  • Patent number: 10231457
    Abstract: A water treatment composition for treating a body of water is provided that provides visual feedback to the end-user of the effectiveness of the composition. The composition contains a majority of calcium hypochlorite particles; and an effective amount of colored particles containing an oxidizable pigment oxidizable dye and a water soluble material. The colored particles release the oxidizable dye to the body of the water to provide a transient color to the recreational water during dissolution of the composition in the body of water, the transient color providing a visual cue to the end-user signaling of the biocidal activity of the composition. Also provided is a method of applying the water treatment composition to recreational water.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: March 19, 2019
    Assignee: ARCH CHEMICALS, INC.
    Inventors: Janet Jones, Amber Khanzada, Janet Akande, Michael J. Unhoch
  • Patent number: 10136642
    Abstract: A composition of peracetic acid and at least one organic fungicide, a method and a use involving said composition are described. The composition is for the control and/or treatment of diseases associated with the presence of pathogens, more particularly in and on the tissues of a growing plant. The composition may be a powdered composition comprising the organic fungicide(s) and a peracetic acid precursor system, which once admixed with water, may be applied to the tissues of the plant to be treated. Preferably, the peracetic acid precursor system may comprise hydrogen peroxide or a hydrogen peroxide precursor and an acetylating agent. Also described is a kit for preparing an aqueous solution of the described composition, for use in controlling pathogens on a plant tissue of a growing plant.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: November 27, 2018
    Assignee: AGRI-NEO, INC.
    Inventors: Fadi Dagher, Nicholas Dillon, Steven Kent Whitesides, Johannes Mathieu
  • Patent number: 9909219
    Abstract: The invention provides methods and compositions for addressing the problem of microorganism infestations and especially biocorrosion in slurry transporting pipelines. The method comprises treating pipeline fluid (especially plug fluid) with an oxidizing biocide in an amount higher than the oxidant demand of the pipeline and a non-oxidizing biocide in an amount less than 30% of the minimum necessary to sterilize the microbiological organisms. This treatment makes use of the unique characteristics of a slurry pipeline to eliminate microorganisms without harming the pipeline as would be expected by using an oxidizing biocide.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: March 6, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Michael G. Strominger, Danilo Zim, Fabiane Cássia de Sá Aureliano
  • Patent number: 9420796
    Abstract: A method for controlling bivalve growth in a service water system of a plant is disclosed. Upon detecting an increase in the number of veligers or settlement stage bivalves, chlorine anion is introduced into the service water to obtain a chlorine anion concentration of between 0.10 and 2.0 mg/l for a period of 10 to 40 days. Also disclosed is a two-stage method for controlling bivalve growth in a service water system.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 23, 2016
    Assignee: ASI Group Ltd.
    Inventor: Carmelo Sferrazza
  • Patent number: 9133109
    Abstract: The invention provides a process for manufacturing biocidal compositions containing bromourea derivatives, including the reaction of salts or adducts of the urea derivatives with an oxidizer.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 15, 2015
    Assignee: Bromine Compounds Ltd.
    Inventors: Shomo Antebi, David Feldman
  • Patent number: 9061926
    Abstract: The present invention provides a composition and method for inhibiting the growth of microorganisms in industrial water systems. Methods employing the composition comprising halogen-based hydantoin or hydantoin-stabilized halogen in combination with peracetic acid demonstrate synergistic control of microbial growth, particularly control of slime deposition.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: June 23, 2015
    Assignee: NALCO COMPANY
    Inventor: Bert Simons
  • Patent number: 8945397
    Abstract: This invention offers an effective method of inhibiting the growth of toxic bloom algae caused by cyanobacteria Mycrocystis aeruginosa in freshwater environments comprising administering an effective amount of 5,6-dichlorogramine to the freshwater. Also, the invention offers an effective method of inhibiting the growth of toxic bloom algae caused by M. aeruginosa comprising administering an effective amount of 5,6,7-trichlorogramine to the freshwater. Both compounds, 5,6-dichlorogramine and 5,6,7-trichlorogramine, may be administered individually or in combination to the freshwater. Both compounds are individually very potent and only need to be administered at a very low concentration to be effective at inhibiting the growth of M. aeruginosa in freshwater environments. Both 5,6-dichlorogramine and 5,6,7-trichlorogramine are each individually effective at inhibiting M. aeruginosa at low concentrations, between about 0.01 mg/L and about 0.05 mg/L, or more specifically at a concentration of about 0.03 mg/L.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: February 3, 2015
    Assignee: Cyanotrol, LLC
    Inventors: Yuhua Ge, Zheng-Hui He, Weiming Wu
  • Patent number: 8877067
    Abstract: The invention relates to a water treatment using an UV AOP. The invention combines an UV AOP (11) applied to a water containing a free chlorine species (8) with a chemical post treatment (14), a quenching. The quenching (14) is applied to said water (9) after the UV AOP (11) able to reduce a remaining content of said free chlorine species in said water (9).
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 4, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventor: Cosima Sichel
  • Patent number: 8784659
    Abstract: A process has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks. According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or programmed disintegration of the liposome proceeds. Thereafter, the biocidal aqueous core is released to react directly with the biofilm encased microorganisms.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 22, 2014
    Assignee: General Electric Company
    Inventors: Wilson Kurt Whitekettle, Gloria Jean Tafel, Qing Zhao, Linna Wang, Dorothy Reynolds, Paul Frail, Juan Jiang, David M. Polizzotti
  • Patent number: 8741157
    Abstract: A system and method for stabilizing bromine in an industrial water system by monitoring and flexible dosing of chlorine oxidant and halide ion stabilizer residual levels. The system comprises chlorine oxidant, and a halide ion source with a halogen stabilizer.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: June 3, 2014
    Assignee: Nalco Company
    Inventors: Robert L. Wetegrove, Andrew J. Cooper, Steven R. Hatch
  • Patent number: 8722579
    Abstract: An aqueous composition for treatment of water comprising: (a) an N,N-dimethyl-2-hydroxypropylammonium chloride polymer; (b) lanthanum chloride; and (c) a dimethylamine epichlorohydrin ethylenediamine polymer; and a method of treating water using the composition.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 13, 2014
    Assignee: Waterco Limited
    Inventors: Robert Ian Anderson, Paul Seidl
  • Patent number: 8668779
    Abstract: A method of simultaneously cleaning and disinfecting an industrial water system is described and claimed. The method involves the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali salts of chlorite and chlorate and mixtures thereof; and an acid, followed by allowing the water in the industrial water system to circulate for several hours. The reaction of the alkali salts of chlorite and chlorate and acid produces chlorine dioxide in-situ in the water of the industrial water system. The chlorine dioxide kills microorganisms and the acid acts to remove deposits upon the water-contact surfaces of the equipment. This cleaning and disinfecting method works in a variety of industrial water systems including cooling water systems.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: March 11, 2014
    Assignee: Nalco Company
    Inventors: Andrew J. Cooper, Jasbir S. Gill, Amit Gupta, Robert F. Kelly, Douglas G. Kelley, Eric R. Myers
  • Patent number: 8613859
    Abstract: Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to an aqueous system. The ratio of monohaloamine to dihaloamine is selected to result in a synergistic biocidal effect.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: December 24, 2013
    Assignee: Hercules Incorporated
    Inventors: Michael J. Mayer, Freddie L. Singleton
  • Patent number: 8591748
    Abstract: A system and method for maintaining a body of water in a sanitized condition with use of a halogen and a source of silver ions wherein the halogen is maintained at 50% to 75% less than a recommended halogen level for maintaining the body of water in a sanitized condition by adding a compound containing a hydantoin ring to a recreational body of water containing a halogen and a source of metal ions.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: November 26, 2013
    Assignee: King Technology, Inc.
    Inventors: John Hill, Joseph A. King
  • Patent number: 8114298
    Abstract: A device, system and method are provided for treating water, in which a water treating agent is prepared and dispensed to an untreated drinking water source in discrete and consecutive control volumes enabling untreated water in the untreated water source to be treated thereby to provide potable water.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: February 14, 2012
    Assignees: Bromine Compounds Ltd., WDT-Werner Dosiertechnik GmbH & Co. KG
    Inventors: Theodore Fishler, David Feldman, Dietmar Werner
  • Publication number: 20110259835
    Abstract: A method for reducing an isocyanuric acid level concentration in swimming pool water to prevent chlorine lock. The method comprises the steps of adding an effective amount of sodium hydroxide combined with an antimicrobial agent to the pool water and reacting the sodium hydroxide with the isocyanuric acid therein to reduce the isocyanuric acid concentration to a level of between about 30 to 50 PPM. The antimicrobial agent reduces the amount of microorganisms that have accumulated in the pool water until the chlorine is released from its “locked-up” condition.
    Type: Application
    Filed: April 26, 2010
    Publication date: October 27, 2011
    Inventor: David Hodak
  • Patent number: 8029677
    Abstract: A water purification method and devices, and in particular a purification method effective against microbes, that uses a silane-based antimicrobial, and in particular the AEGIS MICROBE SHIELD antimicrobial, where the antimicrobial is embedded, coated, or otherwise permanently applied to a substrate or carrier, such as a solid, a porous solid, fibers or the like. A volume of microbe contaminated water is exposed to the antimicrobial carrier for sufficient residence time such that sufficient quantities of microbes are eradicated and the water is made potable. The antimicrobial carrier may be an object suspended or placed into a container or reservoir for the water, or the antimicrobial carrier may comprise the container or reservoir itself. Particulate filters or the like may also be combined with the antimicrobial container to remove other undesirable contaminants.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 4, 2011
    Inventors: Mark D. Shaw, J. Tad Heyman
  • Patent number: 7976725
    Abstract: An efficient cyclic process and related compositions for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH. The cyclic process provides a means of safe and effective use of chlorine dioxide with reduced concern of chlorite accumulation in the aqueous system. The disclosed chemistry used to support the cyclic process can be applied independently or in various combinations that are effectively inert. This dramatically reduces safety concerns since the chlorine dioxide is produced in-situ to the application and in dilute concentrations. Also, the process allows for regeneration of inert anions such as bromide and chlorite thereby reducing operating cost.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: July 12, 2011
    Assignee: Truox, Inc.
    Inventor: Roy William Martin
  • Patent number: 7927509
    Abstract: An efficient cyclic process and related compositions for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH. The cyclic process provides a means of safe and effective use of chlorine dioxide with reduced concern of chlorite accumulation in the aqueous system. The disclosed chemistry used to support the cyclic process can be applied independently or in various combinations that are effectively inert. This dramatically reduces safety concerns since the chlorine dioxide is produced in-situ to the application and in dilute concentrations. Also, the process allows for regeneration of inert anions such as bromide and chlorite thereby reducing operating cost.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: April 19, 2011
    Assignee: Truox, Inc.
    Inventor: Roy William Martin
  • Patent number: 7927508
    Abstract: 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: Grant
    Filed: December 18, 2008
    Date of Patent: April 19, 2011
    Assignee: Truox, Inc.
    Inventor: Roy W. Martin
  • Patent number: 7922933
    Abstract: This invention relates to a method for enhanced sanitation and oxidation of aqueous solutions at aquatic facilities. The method provides a means for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH, and enhanced inactivation rates of microbiological organisms including cryptosporidium.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 12, 2011
    Assignee: Truox, Inc
    Inventor: Roy W. Martin
  • Patent number: 7875191
    Abstract: A two part biocide composition containing metal ions and bromine donor for killing microorganisms in a body of water and a method of killing microorganisms in a body of water by placing both metal ions and a bromine in the body of water to allow use of lower concentrations of bromine than if bromine were used alone as a biocide.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: January 25, 2011
    Assignee: King Technology, Inc
    Inventors: Joseph A. King, Marlin Frank
  • Publication number: 20110011809
    Abstract: A water purification method and devices, and in particular a purification method effective against microbes, that uses a silane-based antimicrobial, and in particular the AEGIS MICROBE SHIELD antimicrobial, where the antimicrobial is embedded, coated, or otherwise permanently applied to a substrate or carrier, such as a solid, a porous solid, fibers or the like. A volume of microbe contaminated water is exposed to the antimicrobial carrier for sufficient residence time such that sufficient quantities of microbes are eradicated and the water is made potable. The antimicrobial carrier may be an object suspended or placed into a container or reservoir for the water, or the antimicrobial carrier may comprise the container or reservoir itself. Particulate filters or the like may also be combined with the antimicrobial container to remove other undesirable contaminants.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 20, 2011
    Inventors: Mark D. Shaw, J. Tad Heyman
  • Patent number: 7824557
    Abstract: A process has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks. According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or programmed disintegration of the liposome proceeds. Thereafter the biocidal aqueous core is released to react directly with the biofilm encased microorganisms.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: November 2, 2010
    Assignee: General Electric Company
    Inventors: Wilson Kurt Whitekettle, Gloria Jean Tafel, Qing Zhao
  • Patent number: 7820060
    Abstract: Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to an aqueous system.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: October 26, 2010
    Assignee: Hercules Incorporated
    Inventors: Michael J. Mayer, Freddie L. Singleton
  • Patent number: 7780859
    Abstract: The invention provides the use of a water-soluble biocide as an uncoupling agent at an effective amount to control bacterial biomass in an aqueous system. The invention also provides a method for controlling the growth of bacterial biomass in an aqueous system. The method comprises adding to, or contacting with, the aqueous system an effective amount of an uncoupling agent which is a water-soluble biocide. In a preferred embodiment the method comprises contacting an effective amount of an uncoupling agent which is a water-soluble biocide directly with the bacterial biomass in an aqueous system.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 24, 2010
    Assignee: Rhodia Operations
    Inventors: Yvette Pescher, Robert Eric Talbot, Luc Olivier Louvel, Agnes Pilas-Begue, Laetitia Catinon, Gilles Michael Moreau
  • Patent number: 7736520
    Abstract: A process for the reduction of N-nitrodimethylamine (NDMA) and for control of trihalomethanes (THMs) and haloacetic acids (HAAs) formation in fully nitrified wastewater effluent, comprising first adding chlorine to the effluent, then adding combined chlorine.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: June 15, 2010
    Assignee: County Sanitation Districts of Los Angeles County
    Inventor: Shiaw-Jy Huitric
  • Publication number: 20100140185
    Abstract: An antimicrobial method of treating wastewater and a wastewater antimicrobial dispenser containing an antimicrobial agent for treating a body of wastewater to kill microorganisms by increasing the concentration metal ions therein. The antimicrobial method includes the step of increasing the effectiveness of the biocidal component in the body of wastewater to thereby lessen the need for a supplemental biocide by adding a compound containing a hydantoin ring where the compound containing a hydantoin ring may or may not have any antimicrobial properties. The antimicrobial agent including a source of biocidal metal ions and a compound containing a hydantoin ring where the antimicrobial agent may be a powder, a liquid a solid or combinations thereof.
    Type: Application
    Filed: December 1, 2009
    Publication date: June 10, 2010
    Inventors: John Hill, Joseph A. King
  • Patent number: 7727465
    Abstract: 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: Grant
    Filed: April 25, 2008
    Date of Patent: June 1, 2010
    Inventor: Spyros J. Papageorge
  • Publication number: 20100006513
    Abstract: A device, system and method are provided for treating water, in which a water treating agent is prepared and dispensed to an untreated drinking water source in discrete and consecutive control volumes enabling untreated water in the untreated water source to be treated thereby to provide potable water.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 14, 2010
    Applicants: BROMINE COMPOUNDS LTD., WDT-WERNER DOSIERTECHNIK GMBH & CO. KG
    Inventors: Theodore Fishler, David Feldman, Dietmar Werner
  • Publication number: 20090242484
    Abstract: 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: Application
    Filed: April 1, 2008
    Publication date: October 1, 2009
    Inventors: Ana-Mariana Urmenyi, Jeroen A. Koppes, Robert L. Wetergrove, Menno J.T. van Haasterecht
  • Publication number: 20090200246
    Abstract: A method and apparatus for treating a body of water to kill microorganisms by enhancing the concentration metal ions therein. The apparatus comprising a dispenser with a first housing having a water accessible compartment containing a source of a N-halohydantoin compound for releasing the N-halohydantoin compound when contacted by the body of water with the at least one N-halohydantoin having the formula: wherein R and R1 each independently comprises an alkyl group, and wherein X and Y are independently selected from the group consisting of bromine, chlorine and hydrogen and a second housing having a water accessible compartment containing an insoluble metal ion donor for releasing metal ions when contacted by the body of water containing the N-halohydantoin.
    Type: Application
    Filed: April 14, 2009
    Publication date: August 13, 2009
    Inventors: Joseph A. King, Nicole A. Weulander, John Hill
  • Patent number: 7560033
    Abstract: 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: Grant
    Filed: October 13, 2004
    Date of Patent: July 14, 2009
    Inventors: Edward Blake Lightcap, Michael Brian Coxey, Thomas Peter Tufano
  • Patent number: 7501067
    Abstract: A two part biocide composition containing metal ions and bromine donor for killing microorganisms in a body of water and a method of killing microorganisms in a body of water by placing both metal ions and a bromine in the body of water to allow use of lower concentrations of bromine than if bromine were used alone as a biocide.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: March 10, 2009
    Inventors: Joseph A. King, Marlin Frank
  • Patent number: 7455859
    Abstract: Liquid and solid bromine-containing compositions are described. A liquid mixed halogen composition is also described. The highly concentrated liquid compositions and the high-activity solid compositions have excellent physical and chemical stability. The compositions are effective biocides in water treatment. Methods of preparing the compositions are also disclosed. These include combining a bromine compound in the oxidation state of ?1 with hydrogen peroxide and a complexing agent followed by the addition of an alkaline source. The methods may further include the use of a solid organic or solid inorganic halogenating agent, conducting a solid-liquid separation, and adding an alkaline source.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: November 25, 2008
    Assignee: Enviro Tech Chemical Services, Inc.
    Inventors: Jonathan N. Howarth, Michael S. Harvey
  • Publication number: 20080277355
    Abstract: A water-insoluble polymeric oxidizing medium is contemplated that has a plurality of polymerized N-pyridinium vinylbenzyl triiodide or tribromide moieties whose pyridinium rings bear two substituents, R1 and R2, that are independently a hydrido or a C1-C4 alkyl group, and correspond in structure to the formula A process for preparing aseptic water and an apparatus useful for carrying out that process, both of which utilize a contemplated polymeric oxidizing
    Type: Application
    Filed: November 21, 2007
    Publication date: November 13, 2008
    Inventors: Paul K. Smith, Timothy J. Badger
  • Patent number: 7449119
    Abstract: 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: Grant
    Filed: July 25, 2006
    Date of Patent: November 11, 2008
    Assignee: Chemtura Corporation
    Inventor: Geoffrey Brown
  • Patent number: 7445759
    Abstract: 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: Grant
    Filed: April 5, 2006
    Date of Patent: November 4, 2008
    Inventor: Spyros J. Papageorge
  • Publication number: 20080257001
    Abstract: The present invention provides a method of reducing the pathogen content of sewage sludge comprising (a) adding to the sludge an effective amount of a phosphorous-containing compound and (b) keeping the phosphorous-containing compound in contact with the sludge for a sufficient time to reduce the amount of pathogens present in the sludge by an amount equivalent to a logarithmic reduction of 2 or more.
    Type: Application
    Filed: December 16, 2005
    Publication date: October 23, 2008
    Applicant: Rhodia Limited
    Inventors: Stephanie Edmunds, Paul Douglas Gilbert, Robert Eric Talbot
  • Publication number: 20080203034
    Abstract: The invention relates to a method of inhibiting the growth of microorganisms in fresh or circulating water by adding to the water, separately and essentially continuously, (1) an oxidant and (2) a bromine source.
    Type: Application
    Filed: March 15, 2006
    Publication date: August 28, 2008
    Applicant: BIM KEMI AB
    Inventors: Petri Lindqvist, Pertti Mattila, Pekka Kultalahti
  • Patent number: 7407623
    Abstract: Lecithin and 2-bromo-2-nitropropane-1,3 diol (BNPD) are used to inhibit corrosion in boiler steam condensate systems. Aqueous steam condensate corrosion inhibiting compositions of these components are also disclosed. BNPD is also used as a preservative in lecithin containing and in other GRAS additive containing compositions.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: August 5, 2008
    Assignee: GE Betz, Inc.
    Inventors: Wilson K. Whitekettle, Rosa Crovetto
  • Patent number: 7407590
    Abstract: The present invention provides a method for the removal of biofilm, flocculent bulked sludge or bulked biologically active sludge from an aqueous system. The method involves adding one or more chlorinated hydantoins, such as dichloro- or monochlorodialkylhydantoin, to the aqueous system. Alternatively, the chlorinated hydantoin may be formed in situ by adding a chlorine source and an alkylated hydantoin separately to the aqueous system. The invention is particularly advantageous because of the outstanding photostability of the chlorinated hydantoin solutions even when exposed to sunlight.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: August 5, 2008
    Assignee: Lonza, Inc.
    Inventors: Michael Ludensky, Philip G. Sweeny
  • Publication number: 20080142453
    Abstract: The present invention is directed to a composition for treating recirculating water systems, comprising: (1) a biocidal effective amount of a first nonoxidizing biocide comprising biguanide; and (2) a biocidal effective amount of a second nonoxidizing biocide comprising dibromonitrilopropionamide (DBNPA); wherein the composition is substantially free from oxidants. The present invention is also directed to a method of controlling the growth of microorganisms in recirculating water systems, comprising the step of treating the recirculating water systems with the above composition.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 19, 2008
    Inventors: Michael Joseph Unhoch, Sungmee Choi, Katherine P. Roberts, Leon Peter O'Malley
  • Patent number: 7341671
    Abstract: Disclosed is a method of preparing a biocide having improved durability of its biocidal activity as well as disinfection efficiency at an initial stage, comprising the steps of: (a) preparing stabilized alkali or alkaline earth metal hypochlorite having a pH at least 11 by mixing a chlorine oxidant including alkali or alkaline earth metal hypochlorite with a stabilizer in an alkali solution; (b) preparing a bromide ion source; and (c) adding the bromide ion source prepared in step (b) into the stabilized alkali or alkaline earth metal hypochlorite prepared in step (a). Also, a method of controlling the growth of microorganisms using a biocide prepared by the method of the present invention is disclosed.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: March 11, 2008
    Assignee: Acculab Co., Ltd.
    Inventors: Sang-Hea Shim, Chung-Soo Kim
  • Patent number: 7311878
    Abstract: An apparatus and methods to produce synergistic mixtures (or combinations) of haloamines to control growth of microorganisms in aqueous systems are disclosed. The apparatus and methods to produce synergistic mixtures entails producing a batch quantity of a haloamine and converting part of the haloamine to a second haloamine species to form the synergistic mixture.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 25, 2007
    Assignee: Hercules Incorporated
    Inventors: Freddie L. Singleton, Michael J. Mayer, Alexander W. Breen
  • Patent number: 7303770
    Abstract: Vegetable sources of cancer chemoprotective agents have been identified which are extraordinarily rich in glucosinolates, metabolic precursors of isothiocyanates. The vegetable sources are used to provide a dietary means of reducing the level of carcinogens in mammals.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 4, 2007
    Assignee: Johns Hopkins School of Medicine
    Inventors: Jed W. Fahey, Paul Talalay
  • Patent number: 7279099
    Abstract: A method utilizing chlorine dioxide and nitrous acid or other non-charged chemical species for the treatment of biosolids to destroy pathogens is provided. The method uses chlorine dioxide to modulate the ORP of the matrix, acidification of the sludge (biosolids) to a pH of less than 4.0, and provides for the addition of nitrous acid for enhanced disinfection in a closed system to prevent volitalization.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: October 9, 2007
    Assignee: FKOS, LLC
    Inventors: Robert S. Reimers, Frederick P. Mussari, Wilfried Schmitz
  • Patent number: RE41859
    Abstract: Aquatic nuisance species (ANS) in ship's ballast water are killed by permeating to equilibrium a gaseous mixture consisting essentially of, preferably, ?84% nitrogen, ?11% carbon dioxide and ?4% oxygen through ship's ballast water until the ballast water itself becomes (i) hypercapnic to ?20 ppm carbon dioxide, and, by association, (ii) acidic to pH?7, while preferably further, and also, being rendered (iii) hypoxic to ?1 ppm oxygen. The permeating is preferably realized by bubbling the gaseous mixture preferably obtained from an inert gas generator through the ballast water over the course of 2+ days while the ballast water is continually maintained a pressure less than atmosphere, preferably ?2 p.s.i. or less.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: October 26, 2010
    Inventors: Mo Husain, Robert Apple, Dmitry Altshuller, Henry Hunter