Hypochlorite Patents (Class 210/756)
  • Patent number: 10702880
    Abstract: A nebuliser cup for maintaining a safe level of liquid during nebulization, the cup comprising a liquid level sensor comprising: a first element sensing liquid at or below a position corresponding to a filled liquid level in the nebuliser cup; a second element electrically isolated from the first element and located at a position corresponding to a filled liquid level in the nebuliser cup; and wherein when the cup is not filled with a liquid to the filled liquid level, the first element, the liquid and the second element do not form an electrically coupled circuit; and when the cup is filled with a liquid to the filled to liquid level, the first element, the liquid and the second element together form an electrically coupled circuit.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: July 7, 2020
    Assignee: Saban Ventures PTY Limited
    Inventors: Brian Hingley, Michael Potas
  • Patent number: 10575527
    Abstract: A method and apparatus for producing a biocide from a hypochlorite oxidant and an ammonium salt are provided. The method includes monitoring a control parameter to optimize the ratio between the hypochlorite oxidant and the ammonium salt. The control parameter may be oxidation-reduction potential, conductivity, induction or oxygen saturation.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 3, 2020
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Patent number: 10196341
    Abstract: Methods of halogenating a carbon containing compound having an sp3 C—H bond are provided. Methods of fluorinating a carbon containing compound comprising halogenation with Cl or Br followed by nucleophilic substitution with F are provided. Methods of direct oxidative C—H fluorination of a carbon containing compound having an sp3 C—H bond are provided. The halogenated products of the methods are provided.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: February 5, 2019
    Assignee: The Trustees Of Princeton University
    Inventors: John T. Groves, Wei Liu
  • Patent number: 10143978
    Abstract: In a method of carbonating a beverage using a carbon dioxide diffusing stone, temperature is measured in a flow of that beverage immediately before the flow changes from laminar to effervescent, thereby obtaining a true temperature at which carbon dioxide is diffused into the beverage. In another aspect of the present invention, there is provided a portable controller having connectors joinable to a gas pressure regulator of a gas cylinder and to any one of several beverage carbonation containers. The portable controller has instruments therein for controlling a flow of carbon dioxide gas to the beverage in any one of the containers and for controlling a pressure gradient of the carbon dioxide gas in the beverage over a period of time. There is also provided an elongated carbon dioxide diffusing stone assembly having an elongated temperature probe well extending parallel to and immediately below a diffusing stone.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: December 4, 2018
    Inventor: Guy Tipton
  • Patent number: 10000394
    Abstract: A composition for in situ remediation of soil and groundwater contaminated with hydrocarbons. The composition includes an adsorbent, such as activated carbon, capable of adsorbing the hydrocarbons. The composition also includes a sulfate-containing compound that releases sulfate over a period of time, e.g., a time-release compound that may include calcium sulfate. The composition includes a nutrient system for promoting growth of facultative anaerobes, in the soil or provided in the composition itself. In some embodiments, the nutrient system includes a sulfide scavenging agent such as iron sulfate. In the same or other embodiments, the nutrient system includes at least one of a nitrogen source and a phosphorous source.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: June 19, 2018
    Assignee: REMEDIATION PRODUCTS, INC.
    Inventors: Scott Noland, Bob Elliott
  • Patent number: 9916914
    Abstract: A carbon material comprising pyrolized egg protein characterized by containing mesopores or micropores. The pyrolized egg protein may comprise pyrolyzed eggshell membrane having a continuous conducting core and a porous shell, the pyrolyzed eggshell membrane comprising partially-activated carbon. The porous shell may comprise nitrogen or oxygen. The pyrolized egg protein may comprise mesoporous egg white.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: March 13, 2018
    Assignee: The Governors of the University of Alberta
    Inventors: Zhi Li, Li Zhang, Chris M. B. Holt, David Mitlin
  • Patent number: 9743670
    Abstract: The present invention relates to a method of preparing chlorine dioxide (ClO2) from hydrochloric acid (HCl) and sodium chlorite (NaClO2) in the presence of water (H2O). The invention has for its object to further develop the method such that it is more economical to install and operate. The object is achieved when the hydrochloric acid is used in aqueous solution at a concentration of 27 to 33 wt %, the sodium chlorite is used in aqueous solution at a concentration of 22 to 27 wt % and the molar ratio of hydrochloric acid used to sodium chlorite used is between 2.14 and 4.2.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: August 29, 2017
    Assignee: Infracor GmbH
    Inventors: Gerda Grund, Hartmut Rahtz, Hermann-Josef Korte
  • Patent number: 9669330
    Abstract: Embodiments describe apparatuses, systems and methods for utilizing a configurable WWTP container having a removable sensor/controller cartridge. Said removable cartridge is configured for collecting and analyzing data for any given configuration of a WWTP container, and is positioned securely separate from the treatment compartment(s) of the WWTP container. The removable cartridge is able to monitor operation conditions of the wastewater treatment compartment(s) via control logic and at least one sensor included in the removable cartridge, and change operating parameters of the container.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: June 6, 2017
    Assignee: Liberty Evans, LLC
    Inventors: James P. Reilly, Victoria Jelderks
  • Patent number: 9289526
    Abstract: [Problem to be Solved] A device and a method for efficiently decontaminating a device used to culture cells are provided. [Means for Solving Problem] A decontamination device for decontaminating a device used to culture cells, manipulate microorganisms, or perform a sterility test, the device comprising an ultrasonic atomizer that atomizes a peracetic acid disinfectant by using ultrasonic oscillation to discharge droplets, a diffusion fan, a temperature-humidity sensor, and a controller.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: March 22, 2016
    Inventor: Akio Sakaki
  • Patent number: 9281135
    Abstract: A nitrogen-containing carbon porous material, which has a nitrogen content of 0.5 to 30 mass %, and which has a specific surface area of 200 to 3,000 m2/g.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: March 8, 2016
    Assignees: National Institute of Advanced Industrial Science and Technology, Toyo Tanso Co., Ltd.
    Inventors: Yasushi Soneda, Masaya Kodama, Takahiro Morishita
  • Patent number: 9279264
    Abstract: In a method for water treatment by chlorine disinfection, a chlorine stabilizer is dosed into water to be treated as far as a predetermined chlorine stabilizer concentration in said water is achieved. As soon as the predetermined chlorine stabilizer concentration is achieved said achieved chlorine stabilizer concentration is maintained in said water constant. A chlorine disinfectant concentration is adjusted in said water to be treated to a predetermined chlorine disinfectant concentration in said water by dosing a non-stabilized chlorine disinfectant (free chlorine) into said water to be treated. Therefore advantages of free chlorine and stabilized chlorine disinfection and facilitating to reduce DBPs at low chlorine stabilizer concentrations in water can be combined, without compromising disinfection safety.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: March 8, 2016
    Assignee: Evoqua Water Technologies GmbH
    Inventors: Dieter Forstmeier, Cosima Sichel, Johannes Stein
  • Patent number: 9113633
    Abstract: The present invention provides a composition containing an aluminate and calcium hypochlorite, wherein the content of the aluminate is 1.0 part by weight to less than 2 parts by weight based on 100 parts by weight of the composition.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 25, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Toshiyuki Yamashita, Yoshinori Kamatsuchi
  • Publication number: 20150125551
    Abstract: A method of manufacturing and an apparatus for making an aqueous chlorine solution having a pH between 3.0 and 6.5 and a stability such that after 6 weeks storage at 20 degrees Celsius the pH remains in the range 3.0 to 6.5 and the amount of chlorine lost from the solution is less than 10%, such that the method includes: (a) Providing a source of water having an electrical conductivity at 20 degrees Celsius of no more than 50 (and preferably no more than 4.3) ?Scm-1 (b) Reacting the water with solid calcium hypochlorite having a purity of at least 60%; and (c) Adjusting the pH to between 3.0 and 6.5.
    Type: Application
    Filed: October 20, 2014
    Publication date: May 7, 2015
    Inventors: Stephen Thomas BOND, Kevin John BYRNE, Simon Joseph WARD, Natasha Ann Crawford PAGE
  • Patent number: 9017556
    Abstract: Ultrapure water of high purity having extremely low TOC concentration is produced by efficiently degrading urea in raw water by biological activated carbon treatment even when the raw water contains ammonium nitrogen. The ultrapure water production method, where raw water is treated in a primary pure water system, and then the resulting water is treated in a subsystem, contains a step of treating pretreated water with chlorine based oxidizer added by a biological treatment means installed upstream to the subsystem. Chlorine based oxidizer is added so that the chlorine based oxidizer concentration is 5 times or more than the ammonium nitrogen concentration of water treated in the biological treatment means in terms of Cl2.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: April 28, 2015
    Assignee: Kurita Water Industries Ltd.
    Inventors: Nozomu Ikuno, Motomu Koizumi
  • Patent number: 9005454
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in water systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 14, 2015
    Assignee: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8968575
    Abstract: Ballast and/or cooling water biocidal treatment and disinfection systems and techniques are provided. The systems utilize oxidation reduction potential control to regulate addition, or concentration of an electrocatalytically generated biocidal agent to disinfection levels in ship buoyancy and to biofouling levels in ship cooling water systems. The disinfection and biofouling control systems provide suitable treatment while reducing the potential for corrosion of ship components and, in some cases, undesirable disinfection byproducts.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 3, 2015
    Assignee: Evoqua Water Technologies LLC
    Inventors: Vadim Zolotarsky, Irina A. Ivanter, Louis J. Lombardo, Robert Weddle, Michael Upjohn
  • Publication number: 20140263088
    Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, substoichiometric quantities.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: SABRE INTELLECTUAL PROPERTY HOLDINGS LLC
    Inventor: SABRE INTELLECTUAL PROPERTY HOLDINGS LLC
  • Patent number: 8795536
    Abstract: Process for degrading organic substances in an aqueous composition comprising a step (a) wherein, in a liquid reaction medium, said aqueous composition is reacted with at least one composition comprising hydroxide ions (OH?) and hypochlorite in a molar ratio between hydroxide and hypochlorite higher than or equal to 0.001 and lower than 1.5, in order to oxidize said organic substances.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: August 5, 2014
    Assignee: Solvay (Societe Anonyme)
    Inventors: Patrick Gilbeau, Ward Blancke
  • 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: 8734653
    Abstract: A mercury remediation method and apparatus for reducing mercury levels in water to a nanogram per liter level that uses four treatment steps: (1) chelation; (2) oxidation; (3) reduction; and (4) air stripping, vapor/liquid separation. There is a fifth step in the process, which does not involve the wastewater. It is to scrub the stripper air of the volatile mercury in an off-gas adsorption unit or to condense volatile mercury in a cryogenic mercury trap.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 27, 2014
    Inventor: Terrence W. Aylesworth
  • Publication number: 20140138325
    Abstract: A chlorine dioxide generation system includes a process water passage formed in an integral structure proximate a first end of the integral structure. A chlorine dioxide reactor is formed in a bore of the integral structure and coupled to the process water passage. A precursor passage is formed in the integral structure proximate a second end opposite from the first end. The precursor passage has a first opening opposite a second opening coupled upstream of the chlorine dioxide reactor. First and second inlets are coupled to the precursor passage at the first and second end respectively. First and second backpressure valves are coupled to the first and second inlets respectively. First and second precursor pumps are coupled to the first and second backpressure valves respectively. A first precursor is coupled to the first precursor pump. A second precursor is coupled to the second precursor pump.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 22, 2014
    Inventor: Dennis John Tomsheck
  • Patent number: 8691285
    Abstract: Methods of using a non-irritant, low pH acidic composition to destroy undesirable microorganisms are described. The methods may be used on food products, food processing equipment, and in aqueous solutions.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 8, 2014
    Assignee: CMS Innovative Technologies, Inc.
    Inventors: Barry Cummins, David Creasey
  • 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: 8663496
    Abstract: The invention relates to a double-layered compacted solid water-purification product, comprising at least one first layer and at least one second layer, characterized in that the first layer comprises at least one flocculating system and at least one dispersion system, the second layer comprises at least one disinfectant which liberates free chlorine on contact with water and at least one excipient for the disinfectant, whereby said excipient releases the disinfectant into the water at a controlled rate such that the combination of excipient and disinfectant releases 0.1 to 100 mg/l of free chlorine per hour. The invention further relates to the method for production of such a product.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: March 4, 2014
    Assignee: Eurotab
    Inventors: Paul Branlard, Philippe Desmarescaux, Murielle Moneron
  • Publication number: 20140054239
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in water systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 27, 2014
    Applicant: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8652496
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 18, 2014
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8641907
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 4, 2014
    Assignee: National Chi Nan University
    Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
  • Patent number: 8641908
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 4, 2014
    Assignee: National Chi Nan University
    Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
  • Patent number: 8636908
    Abstract: A water treatment system for producing a sodium hypochlorite solution to control bacteria levels in well water containing: a pH adjuster; a container containing solid calcium hypochlorite for producing a calcium hypochlorite solution; and a container containing solid sodium carbonate for producing the sodium hypochlorite solution and a method of controlling bacteria levels in well water by using intermittent injections of a sodium hypochlorite solution with alternating pH values.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: January 28, 2014
    Assignee: Aquifer Maintenance & Performance Systems, Inc.
    Inventor: James Richard Murray
  • Patent number: 8617403
    Abstract: A stabilized mixed oxidant solution may be produced by flowing a starting solution (e.g., salt brine, hypochlorous acid, and/or sodium hypochlorite) through a flow-through electrochemical module including first and second passages separated by an ion permeable membrane while electric power is applied between an anode and cathode in electrical communication with the first and second passages, respectively. An initially acidic anolyte solution received from the first (anode) passage is stabilized by elevating pH to yield a stabilized mixed oxidant solution. Methods of using the mixed oxidant solution are further provided.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: December 31, 2013
    Assignee: Blue Earth Labs, LLC
    Inventors: Jason E. Peters, Stephen D. O'Connor, Chang-jun Yu
  • 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: 8591743
    Abstract: A portable system for extracting iodine from brine on-site is disclosed. The portable system includes a mobile platform containing a treatment unit for oxidizing iodine ions into elemental iodine, an adsorption unit capable of binding iodine, and may also have an electrolytic cell and/or a gas-liquid separator. The treatment unit and the adsorption unit may be located in the same or different portable operating devices. When transported to a field site containing natural gas wells, the natural gas wells provide a fluid stream containing natural gas and brine. The separators can separate the natural gas from the brine, and the brine is then run through the treatment unit and the adsorption unit to bind iodine present in the brine. The brine is then returned to the natural gas well. Upon saturation, the portable operating device is transported to a second location, where iodine is extracted from the adsorption unit.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 26, 2013
    Inventor: Charles A. Schneider
  • Publication number: 20130306567
    Abstract: A water treatment system for producing a sodium hypochlorite solution to control bacteria levels in well water containing: a pH adjuster; a container containing solid calcium hypochlorite for producing a calcium hypochlorite solution; and a container containing solid sodium carbonate for producing the sodium hypochlorite solution and a method of controlling bacteria levels in well water by using intermittent injections of a sodium hypochlorite solution with alternating pH values.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Applicant: Aquifer Maintenance & Performance Systems, Inc.
    Inventor: James J. MURRAY
  • Patent number: 8518270
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: August 27, 2013
    Assignee: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8480909
    Abstract: A method of treating an agricultural-water canal to decompose organic debris in the agricultural-water canal provides a controlled delivery of calcium hypochlorite particles to the surface of water by entraining calcium hypochlorite particles in an air stream and then propelling the calcium hypochlorite-laden air stream at high velocity to the surface of the water, whereat the calcium hypochlorite particles are released from the air stream. A device for implementing the method is also disclosed. The device includes a gas blower, a feed hopper and a port which is adapted to direct and propel the biocide-laden gaseous stream to the surface of water in the agricultural-water canal.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: July 9, 2013
    Inventors: John C. Miller, Deborah L Miller
  • Publication number: 20130134104
    Abstract: In a method for water treatment by chlorine disinfection, a chlorine stabilizer is dosed into water to be treated as far as a predetermined chlorine stabilizer concentration in said water is achieved. As soon as the predetermined chlorine stabilizer concentration is achieved said achieved chlorine stabilizer concentration is maintained in said water constant. A chlorine disinfectant concentration is adjusted in said water to be treated to a predetermined chlorine disinfectant concentration in said water by dosing a non-stabilized chlorine disinfectant (free chlorine) into said water to be treated. Therefore advantages of free chlorine and stabilized chlorine disinfection and facilitating to reduce DBPs at low chlorine stabilizer concentrations in water can be combined, without compromising disinfection safety.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 30, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventor: Siemens Aktiengesellschaft
  • Patent number: 8444858
    Abstract: 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: Grant
    Filed: February 29, 2012
    Date of Patent: May 21, 2013
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8425768
    Abstract: The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include an oxidation reactor configured to receive a flow of wastewater from a wastewater producing process. The oxidation reactor may be further configured to oxidize a chemical associated with the flow of wastewater with an oxidation agent. The oxidation reactor may include at least one reaction member configured to pressurize at least a portion of the oxidation reactor. The system may further include at least one resin tank configured to contain an ion exchange resin configured to target a particular metal, the at least one resin tank configured to receive an output from the oxidation reactor. Numerous other embodiments are also within the scope of the present disclosure.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 23, 2013
    Assignee: Hydroionic Technologies Co., Ltd.
    Inventors: Rainer Bauder, Richard Hsu Yeh
  • Publication number: 20130075346
    Abstract: Methods for introducing a substantially uniform concentration of a functional agent into a flowing stream of water using a shaped composition. The composition may be shaped and sized to be inserted into a device configured to be attached over the end of a faucet. The shaped composition comprises a dissolvable region including a functional agent (e.g., an anti-microbial sanitizing agent). A non-dissolvable region disposed adjacent to the dissolvable region may optionally be provided. The substantially non-dissolvable region remains substantially intact as the dissolving region is progressively dissolved, introducing the functional agent into a flowing stream of water.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 28, 2013
    Inventors: Evan Rumberger, William Ouellette, William L. Smith
  • Patent number: 8372291
    Abstract: The present invention is directed to a water treatment composition, comprising: 35-95 wt % calcium hypochlorite; 1 to 50 wt % magnesium sulfate or a hydrate thereof; 0.1 to 10 wt % lime; and 0.1 to 55 wt % of a water soluble zinc salt or a hydrate thereof; wherein the weight percents are based on the total weight of the composition. The present invention is also directed to a water treatment tablet, comprising 35-95 wt % calcium hypochlorite; 1 to 50 wt % magnesium sulfate or a hydrate thereof; 0.1 to 10 wt % lime; and 0.1 to 10 wt % of a water soluble zinc salt or a hydrate thereof; wherein the weight percents are based on the total weight of the composition. Methods of treating recreational water using the compositions are also disclosed.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: February 12, 2013
    Assignee: Arch Chemicals, Inc.
    Inventors: Richard M. Mullins, Michael J. Unhoch
  • Patent number: 8366939
    Abstract: Methods and compositions for improving water quality by reducing chlorine demand, decreasing disinfection by-products and controlling deposits in drinking water distribution systems include adding low concentrations of supplemental oxidants, for example, RE-Ox® to the systems.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: February 5, 2013
    Assignee: Blue Earth Labs, LLC
    Inventors: Douglas R. Vineyard, Eric W. Christensen, Jason Peters
  • Patent number: 8361342
    Abstract: The present invention relates to a compacted solid product for water purification comprising:—at least a first layer comprising at least a coagulant/flocculant system comprising at least one polyvalent inorganic salt, at least one water-soluble cationic polymer and at least one high-molecular-weight anionic polymer,—at least a second layer comprising at least one disinfectant that releases active chlorine on contact with water, characterized in that said coagulant/flocculant system moreover comprises a sodium alginate. The invention also relates to the method for preparing such a product.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: January 29, 2013
    Assignee: Eurotab
    Inventors: Paul Branlard, Gilles Rubinstenn
  • Patent number: 8293118
    Abstract: A method of treating an agricultural-water canal to decompose organic debris in the agricultural-water canal is disclosed. The method provides a controlled delivery of biocide particles to the surface of water by entraining biocide particles in a gaseous stream and then scattering the biocide particles across the surface of the water by propelling the biocide-laden gaseous stream to the surface of the water, whereat the biocide particles are released from the gaseous stream. A device for implementing the method is also disclosed. The device includes a gas blower, a feed hopper and a port which is adapted to direct and propel the biocide-laden gaseous stream to the surface of water in the agricultural-water canal.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: October 23, 2012
    Inventors: John C. Miller, Deborah L. Miller
  • Patent number: 8211318
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 3, 2012
    Assignee: A. Y. Laboratories Ltd
    Inventor: Ayala Barak
  • Patent number: 8197665
    Abstract: Aqueous composition containing at least one salt in an amount of at least 30 g/kg of composition, of which the total organic carbon content is at least 1 ?g of C/l and at most 5 g of C/l of composition and which contains at least one carboxylic acid.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: June 12, 2012
    Assignee: Solvay (Societe Anonyme)
    Inventors: Philippe Krafft, Patrick Gilbeau, Dominique Balthasart, Andre Daene
  • Patent number: 8168072
    Abstract: 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: Grant
    Filed: March 10, 2011
    Date of Patent: May 1, 2012
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8105494
    Abstract: 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: Grant
    Filed: July 15, 2010
    Date of Patent: January 31, 2012
    Assignee: Johns Manville
    Inventor: Michael William Miks
  • Publication number: 20120006758
    Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d).
    Type: Application
    Filed: November 19, 2010
    Publication date: January 12, 2012
    Applicant: NATIONAL CHI NAN UNIVERSITY
    Inventors: Yung-Pin TSAI, Meng-Shan LU, Chih-Chi YANG, Shou-Te CHEN
  • Patent number: 8070962
    Abstract: A method for reclamation of a brine that includes mixing a brine containing thiocyanates with an oxidizing agent; and allowing for a time sufficient for the oxidizing agent to oxidize at least a portion of the thiocyanates is disclosed. Other methods may also include determining the quantity of unoxidized thiocyanates after the oxidizing treatment.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: December 6, 2011
    Assignee: M-I L.L.C.
    Inventor: Morris Arvie, Jr.