Destroying Microorganisms Patents (Class 210/764)
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Publication number: 20100300983Abstract: 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 15, 2010Publication date: December 2, 2010Inventor: Michael William Miks
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Patent number: 7837883Abstract: There are provided methods for controlling microbial or bioflim growth, comprising mixing a hypochlorite oxidant and at least one nitrogen-containing compound or salt thereof selected from a particular group of nitrogen-containing compounds and salts to form a biocide, and applying the biocide. Apparatus for practicing the methods are also provided.Type: GrantFiled: February 14, 2005Date of Patent: November 23, 2010Assignee: A. Y Laboratories Ltd.Inventor: Ayala Barak
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Patent number: 7824557Abstract: 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: GrantFiled: August 8, 2007Date of Patent: November 2, 2010Assignee: General Electric CompanyInventors: Wilson Kurt Whitekettle, Gloria Jean Tafel, Qing Zhao
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Patent number: 7824556Abstract: Chlorous acid is generated from a chlorite salt precursor, a chlorate salt precursor, or a combination of both by ion exchange. The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and adding hydrogen ion to solution. Chlorine dioxide is generated in a controlled manner from chlorous acid by catalysis. Chlorine dioxide can be generated either subsequent to the generation of chlorous acid or simultaneously with the generation of chlorous acid. For catalysis of chlorous acid to chlorine dioxide, the chlorous acid may be generated by ion exchange or in a conventional manner. Ion exchange materials are also used to purify the chlorous acid and chlorine dioxide solutions, without causing degradation of said solutions, to exchange undesirable ions in the chlorous acid and chlorine dioxide solutions with desirable ions, such as stabilizing ions, and to adjust the pH of chlorous acid and chlorine dioxide solutions.Type: GrantFiled: October 18, 2005Date of Patent: November 2, 2010Inventors: Allison H. Sampson, Richard L. Sampson
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Patent number: 7820060Abstract: 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: GrantFiled: August 24, 2006Date of Patent: October 26, 2010Assignee: Hercules IncorporatedInventors: Michael J. Mayer, Freddie L. Singleton
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Patent number: 7820055Abstract: The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, such as lakes or artificial lagoons, with excellent color, transparency and cleanness properties at low cost, which comprises the following steps: a.—providing a structure able to contain a large water body larger than 15,000 m3; b.—feeding the structure of step (a) with inlet water having iron and manganese levels lower than 1.5 ppm and turbidity lower than 5 NTU; c.—measuring water pH, ideally it should be within a range lower than 7.8; d.—adding an oxidizing agent to the water contained in the structure of step (a), with which a 600 mV minimal ORP is controlled in water for a minimal period of 4 hours and in maximal cycles of 48 hours; e.—adding a flocculating agent in concentrations within 0.Type: GrantFiled: June 25, 2007Date of Patent: October 26, 2010Assignee: Crystal Lagoons Corporation LLCInventor: Fernando Benjamin Fischmann Torres
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Publication number: 20100243581Abstract: A potable water distribution system for use in aircraft, as well as potable water systems of boats, recreational vehicles/caravans, residential homes, dental offices, laboratories, vending machines, and the like, provides for sanitizing of the system without opening filter and/or purification units and removing filtering and/or purifying cartridges from the filter and/or purification units during the sanitizing process.Type: ApplicationFiled: March 25, 2009Publication date: September 30, 2010Inventors: Richard T. Williams, Carl Beiswenger
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Patent number: 7799234Abstract: A modular waste disinfection system for the disinfection of substantially liquid infectious waste streams and methods of treating such waste streams are disclosed. The modular waste disinfection system includes a metal ion generation chamber for introducing metal ions into the waste material; an oxidant generation chamber in fluid flow communication with the metal ion generation chamber for disinfection of the waste material with an oxidizing agent; and a chelation chamber in fluid flow communication with the oxidant generation chamber for deactivation of metal ions in the waste material, wherein the waste is discharged to a sanitary sewer after disinfection.Type: GrantFiled: April 9, 2007Date of Patent: September 21, 2010Assignee: Innovation Services, Inc.Inventors: Joseph B. Dooley, Jeffrey G. Hubrig, Richard A. Lowden
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Patent number: 7794606Abstract: A modular waste treatment system for substantially liquid waste streams and methods of treating liquid waste streams are disclosed. The modular waste treatment system includes a maceration chamber for initial treatment and homogenization of waste material; a metal ion infusion chamber in fluid flow communication with the maceration chamber for introducing metal ions into the waste material; and an oxidation chamber for wet oxidation of the waste stream.Type: GrantFiled: April 9, 2007Date of Patent: September 14, 2010Assignee: Innovation Services, Inc.Inventors: Joseph B. Dooley, Jeffrey G. Hubrig, Richard A. Lowden
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Publication number: 20100224572Abstract: A waterline treatment system for treating and preventing biofilms in a dental unit includes a plurality of noncontiguous silver and copper pieces in a ratio between about 8:3 to 10:1, in order to maintain less than 200 colony forming units per milliliter in the water. The waterline treatment device may include a housing, optionally equipped with a flotation mechanism. The water treatment device may be packaged in a kit along with a pre-treatment liquid component that includes colloidal silver.Type: ApplicationFiled: February 21, 2007Publication date: September 9, 2010Inventor: Marianna Cooley
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Patent number: 7785478Abstract: A method for controlling protozoa trophozites and cysts wherein biocides or control agents are encapsulated within microcapsules or manufactured into the core of liposomes, thereafter the biocide containing microcapsules or liposomes are then introduced into an aqueous system.Type: GrantFiled: August 8, 2007Date of Patent: August 31, 2010Assignee: General Electric CompanyInventors: Wilson Kurt Whitekettle, Gloria Jean Tafel
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Patent number: 7785386Abstract: A process for treating an organic matter sludge includes, in a mixing stage, mixing an organic matter sludge and particulate sterilized organic matter, to form an organic matter mixture. This mixture is dried in a drying stage to obtain a homogeneous particulate organic product.Type: GrantFiled: July 14, 2006Date of Patent: August 31, 2010Assignee: Capensis Investments 497 (Proprietary) LimitedInventors: Hendrik J. Venter, Carl Nieuwmeijer
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Patent number: 7780859Abstract: 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: GrantFiled: June 21, 2004Date of Patent: August 24, 2010Assignee: Rhodia OperationsInventors: Yvette Pescher, Robert Eric Talbot, Luc Olivier Louvel, Agnes Pilas-Begue, Laetitia Catinon, Gilles Michael Moreau
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Patent number: 7780858Abstract: 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: GrantFiled: July 16, 2007Date of Patent: August 24, 2010Assignee: Johns ManvilleInventor: Michael William Miks
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Patent number: 7776224Abstract: The present invention relates to an apparatus for treating ballast water, the apparatus being capable of treating ballast water so as to meet the ballast water standard established by the IMO exactly at low costs. The treatment apparatus of the present invention comprises a filter (4) that filters sea water to trap aquatic organisms, a bactericide supply apparatus (5) that supplies bactericide to the filtrate sea water, and a venturi tube 7 that introduces the sea water to which the bactericide is added, to produce cavitation in the sea water, thereby diffusing the bactericide and also damaging and destroying aquatic organisms in the sea water.Type: GrantFiled: June 2, 2006Date of Patent: August 17, 2010Assignee: JFE Engineering CorporationInventors: Yukihiko Okamoto, Shigeki Fujiwara, Koji Fuchigami, Keisuke Nakahara, Masakuni Inoko, Sho Ishida
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Patent number: 7771601Abstract: A process for treating a sludge of biological solids has the steps of mixing an oxide-containing chemical with a pozzolanic material, reacting the mixture with the sludge so as to elevate a temperature of the sludge to between 40° C. and 140° C., pressurizing the blended sludge to a pressure of greater than 14.7 p.s.i.a., recycling a portion of the reacted sludge so as to increase a solids content of the sludge, and discharging at least a portion of the pressurized mixed sludge. The step of discharging includes flashing the pressurized mixed sludge across a restricting orifice so as to cause the liquid component to be evaporated.Type: GrantFiled: January 8, 2008Date of Patent: August 10, 2010Inventor: Samuel L. Shepherd
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Patent number: 7767095Abstract: 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 dosage before 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: May 5, 2008Date of Patent: August 3, 2010Assignee: Zentox CorporationInventors: Joe D. Phillips, Robert P. Kim, Stephen P. Axtell, Sam M. Jaffe
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Publication number: 20100187188Abstract: A wastewater treatment system for treating excess wastewater from a sewer system includes a container having first and second portions adapted to receive excess wastewater from the sewer system, and a generally horizontally oriented screen arrangement disposed in the second portion of the container. The system further includes a treating agent dispenser for introducing a treating agent into the wastewater, and an effluent passage in fluid communication with the second portion of the container. During a sufficient rain event, the wastewater flows from the sewer system into the container, through the screen arrangement, and then into the effluent passage, such that the wastewater flows generally in a first direction through the first portion of the container, then generally in a second direction different than the first direction through the second portion of the container.Type: ApplicationFiled: June 2, 2006Publication date: July 29, 2010Inventor: Saad A. Ghalib
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Patent number: 7744765Abstract: A system, a device and a method for maintaining water quality in a pool or similar water container for use by people which is characterized in that a pressure sensor is arranged to sense the pressure variations inside a main water container 1 and to provide a pressure variation signal to a control and processing unit 3. The control and processing unit is connected with a dispensing module and is adapted to generate and transfer control signals to said dispensing modules. The control signal depends on the detected pressure variation signal. The system for water treatment comprises also a water treatment circulation loop 3A-D at least one controllable chemical dispensing module 8A-D, 9A-D. The circulation loop is adapted to pump water from the main water container 1, around the circulation loop 3A-D, and back into the main water container 1 via the dispensing module for dispensing a chemical treatment agent.Type: GrantFiled: January 23, 2006Date of Patent: June 29, 2010Assignee: Firstwater Controls DAInventors: Jørn-Rudi Bjerkan, Morten Fredriksen
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Patent number: 7740762Abstract: 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: GrantFiled: December 16, 2005Date of Patent: June 22, 2010Assignee: Rhodia UK LimitedInventors: Stephanie Edmunds, Paul Douglas Gilbert, Robert Eric Talbot
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Publication number: 20100147778Abstract: The specification discloses a borate microemulsion product. In one embodiment, the borate microemulsion includes from about 24 to about 32 weight percent emulsified sodium pentaborate; and from about 24 to about 32 weight percent particulate boric acid suspended therein. The microemulsion has a density of about 9.5 to about 10.5 pounds per gallon at about room temperature. In certain embodiments, the microemulsion has a viscosity of about 1200 to about 1520 at a temperature of from about 66° F. to about 70° F. In certain other embodiments, microemulsion has a viscosity of about 1000 to about 3000 at a temperature of from about 70° F. to about 75° F.Type: ApplicationFiled: February 19, 2010Publication date: June 17, 2010Applicant: NISUS CORPORATIONInventor: Jeffrey Douglas Lloyd
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Patent number: 7736522Abstract: A sanitizer generation system supplies power to a first and a second sanitizer generator. Each of the sanitizer generators is connected to a body of water by a circulation system. The system includes a power supply and a control system connected to the power supply and the sanitizer generators. The control system selectively delivers electric current from the power supply to the first and second sanitizer generators.Type: GrantFiled: June 29, 2009Date of Patent: June 15, 2010Assignee: Ecolab Inc.Inventors: Patrick H. Kilawee, Clyde A. Bailey, Leonard J. Kadlec
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Publication number: 20100140185Abstract: 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: ApplicationFiled: December 1, 2009Publication date: June 10, 2010Inventors: John Hill, Joseph A. King
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Patent number: 7731859Abstract: A method of treating sewage sludge that has a solids concentration of about 18-35% by weight includes treating the sewage sludge with sodium hydroxide, potassium hydroxide, or a combination thereof to increase its pH to at least about 12, and treating the sewage sludge with calcium oxide. The treatment of the sewage sludge with the calcium oxide can take place before and/or during the treatment of the sludge with the sodium hydroxide, potassium hydroxide, or a combination thereof. The amount of calcium oxide used is about 0.05-0.8% by weight of the sewage sludge.Type: GrantFiled: July 10, 2006Date of Patent: June 8, 2010Inventor: Ronald Eugene Woodruff
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Patent number: 7727406Abstract: There is provided a water sterilizer. The water sterilizer includes an ultraviolet light source electrically connected to an electrical power source, a light-protective housing encasing the lamp and having an inlet and an outlet, and a pump to draw the water into the housing to expose the water to ultraviolet light. Electric power supplied to the ultraviolet light source has an operating potential of not greater than 24 Volts. There is also provided a method for water sterilization.Type: GrantFiled: July 15, 2005Date of Patent: June 1, 2010Inventor: Ka Duk Lam
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Patent number: 7722774Abstract: The invention relates to a pure water treatment method. According to the invention, once ultra-pure water has been obtained, it is treated by means of cavitation in a tank that is equipped with an acoustic antenna (3) comprising Tonpilz-type piezoelectric transducers which emit at least at the excitation frequency of the water molecules with a sound power that enables the cavitation threshold to be exceeded, taking account of the quantity of water to be treated.Type: GrantFiled: May 13, 2005Date of Patent: May 25, 2010Assignee: Golden TeamInventors: Fabrice Bourgard, Lionel Philippe Bruneau
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Patent number: 7723253Abstract: Disclosed is a method and composition useful for controlling microbial contamination in drinking water produced from condensation. The composition comprises a zeolite which is modified to introduce zinc by ion exchange. The method comprises passing drinking water produced from condensation through a column packed with the modified zeolite.Type: GrantFiled: July 2, 2007Date of Patent: May 25, 2010Assignee: Aquamaker LLCInventor: Felix Rodriguez
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Patent number: 7718073Abstract: A device for treating liquid medium has an ultrasound emitter located relative to a compartment of a container holding a liquid medium and a microbubble emitter located relative to the compartment. The ultrasound emitter emits high-frequency ultrasound between about 200 KHz and 10 MHz. The microbubble emitter emits bubbles with an average diameter of less than 1 mm.Type: GrantFiled: August 3, 2007Date of Patent: May 18, 2010Assignee: Ashland Licensing and Intellectual Property LLCInventors: Eric Cordemans de Meulenaer, Baudouin Hannecart, Yves Canivet
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Patent number: 7713501Abstract: A system for providing a chemical to a stream of a fluid. The system includes an elongate member with the chemical therein and moveable through the fluid to provide the chemical to the fluid. Optionally, the elongate member may be unwound from a first reel to a second reel through the stream of fluid to provide the chemical to the fluid.Type: GrantFiled: September 15, 2008Date of Patent: May 11, 2010Assignee: Twist Engine, Inc.Inventor: Jack C. Priegel
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Patent number: 7704390Abstract: A wastewater treatment system for removing contaminants from wastewater on a vessel using electricity. The wastewater treatment system may inject wastewater with one or more disinfectants or ionized gases, or both, to remove at least a portion of contaminants from the wastewater. The water treatment system may produce disinfectants from saltwater using one or more disinfectant generators and return the byproducts to a water body. The wastewater treatment system may also pass wastewater through an electrical coagulation unit in which an electrical current may be emitted into the wastewater, whereby flocculants are formed and cause suspended solids and other materials to settle out of the wastewater. The wastewater treatment system may include a secondary treatment system for further reducing concentrations of contaminants. In addition, the wastewater treatment system may include a solid waste treatment system for incinerating solids produced by the wastewater treatment system.Type: GrantFiled: November 18, 2003Date of Patent: April 27, 2010Assignee: Ionz Bluewater Solutions, Inc.Inventors: Charles E. Leffler, William Paul
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Patent number: 7704401Abstract: A liquid treatment apparatus and a liquid treatment method are provided. The liquid treatment apparatus includes a nozzle configured to cause cavitation bubbles to be generated in liquid to be treated, and a discharger which generates discharge plasma in a region where the cavitation bubbles are generated. The liquid treatment method includes causing the cavitation bubbles to be generated in the liquid to be treated, and generating discharge plasma in the region where the cavitation bubbles are generated.Type: GrantFiled: November 17, 2008Date of Patent: April 27, 2010Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Hideaki Ike, Kazunori Hakiai
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Patent number: 7704399Abstract: A system and method for the treatment of water for human consumption using a naturally occurring inorganic catalyst working within a pH range between 3 and 13, combining the inorganic catalyst at 3 parts per million to an oxidant, primarily hydrogen peroxide and a metal salt used as a coagulant and a primary catalyst, resulting in an efficient and economical phasic water purification and filtration system and process. The inorganic catalyst is a zeolite a synthetic zeolite or preferably chabazite.Type: GrantFiled: May 30, 2007Date of Patent: April 27, 2010Inventor: Randy Gene Condit
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Patent number: 7699995Abstract: A method for treating water in a closed cooling system, having a pH of at least 7 and a temperature of at least 25° C., by adding a composition comprising 2-methyl-4-isothiazolin-3-one; wherein the composition is substantially free of non-aqueous solvents, volatile organic compounds and halogenated biocides; and wherein 2-methyl-4-isothiazolin-3-one is present in an amount sufficient to produce in the water a 2-methyl-4-isothiazolin-3-one concentration from 15 ppm to 500 ppm.Type: GrantFiled: March 29, 2007Date of Patent: April 20, 2010Assignee: Rohm and Haas CompanyInventor: Terry Michael Williams
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Patent number: 7691274Abstract: A filter installation and method, especially a seawater filter installation and method, includes at least one fluid line (18,20) for transporting a biological fluid, a filter device (54) mounted in the fluid line with at least one filter element (22) in a filter housing (10), and a device for biological decontamination. The device for biological decontamination contains active substances that can be introduced into the filter housing (10), such as inert gases or special metals, ensuring that toxic impurities cannot enter. The active substances used are ecofriendly unlike chemically produced fungicides and herbicides.Type: GrantFiled: February 8, 2006Date of Patent: April 6, 2010Assignee: Hydac Process Technology GmbHInventors: Ralf Wnuk, Thomas Schneider
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Patent number: 7691273Abstract: A method for clarifying a sludge, characterized in that a raw waste water is subjected to a solid-liquid separator and then to a primary filtration device, to separate it into a solid material and a liquid material, and the resultant liquid treated material is then treated by a process comprising an ozone treatment and a special light ray treatment.Type: GrantFiled: February 17, 2005Date of Patent: April 6, 2010Inventor: Seishiro Murakami
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Patent number: 7691324Abstract: In a reaction chamber, which constitutes a component of a process installation for obtaining foodstuffs or foodstuff components, biological products in harvested form that are whole or in pieces are subjected to pulsed electric fields as they pass through said reaction chamber, said electric fields forming pores in the cell walls so as to irreversibly open the latter, thus making the content of the cells more easily accessible. This is achieved by electrode groups, which can be energized to a high voltage and are located in the wall of a longitudinal passage of the reactor through which the process material is moved past grounded electrodes located in an opposing longitudinal wall area. Each electrode group is connected to an electric energy accumulator such as for example, a Marx generator, by means of a switch, in order to rapidly establish electric fields of multiple directions between the charged and the grounded electrodes.Type: GrantFiled: February 20, 2004Date of Patent: April 6, 2010Assignees: Südzucker AG, Forschungszentrum Karlsruhe GmbHInventor: Christoph Schultheiss
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Publication number: 20100078393Abstract: Provided is a biocidal composition comprising glutaraldehyde and an oxazolidine biocidal compound. The composition is useful for controlling microorganisms in aqueous or water containing systems such as found in oil and natural gas production.Type: ApplicationFiled: October 1, 2008Publication date: April 1, 2010Inventor: Bei Yin
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Patent number: 7682510Abstract: The present invention relates to a method of sterilizing a chromatography column which is packed with a separation matrix, which method comprises passing a superheated aqueous liquid through the packing of the column to obtain at least one substantially sterile packed chromatography column. The method may also comprise a preceding heating. In the most advantageous embodiment, the superheated aqueous liquid is passed in a substantially uniform flow through the packing of the column, resulting in a sterility of the packed column.Type: GrantFiled: March 6, 2006Date of Patent: March 23, 2010Assignee: GE Healthcare Bio-Sciences ABInventors: Jan Berglof, Ingrid Drevin, Ola Lind, Ulf Segerbo
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Publication number: 20100044321Abstract: A method for filtration of fluid, primarily liquid, with fluid filtration device haying a fluid inlet and a fluid outlet and a fluid path between the inlet and the outlet through a microporous filter with a pore size adapted for filtering bacteria or bacteria and virus by mechanical particle size separation. The filtration device comprises further an antimicrobial source adding antimicrobial substance to the fluid in the fluid path between the fluid inlet and the inlet surface of the microporous filter. The fluid filtration device is provided with a design flow through the device, the design flow assuring a proper filtration of the fluid flowing through the device with a cleaned fluid at the flow outlet.Type: ApplicationFiled: March 8, 2008Publication date: February 25, 2010Inventor: Mikkel Vestergaard Frandsen
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Patent number: 7666317Abstract: The invention described herein contains two aspects, usable together or separately, that address the needs in the art described above, namely a first aspect that relates to the provision of a transportable water purification system that can be contained on a passenger transport vehicle, and that can use, but does not require, continuous, real-time monitoring, and a second aspect that relates to the use of UV purification of the water as it is uploaded to the passenger transport vehicle after a single pass through the UV chamber.Type: GrantFiled: November 15, 2005Date of Patent: February 23, 2010Assignee: MAC Aerospace Industries, Inc.Inventors: Angela M. Hsueh, Razmik Baghdassarzadeh Boodaghians
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Patent number: 7662741Abstract: The present invention relates to a process for the preparation of highly active silver deposited on carbon covered alumina catalyst, in controlling the microorganism in water.Type: GrantFiled: March 31, 2006Date of Patent: February 16, 2010Assignee: Council of Scientific and Industrial ResearchInventors: Kamaraju Sheetha Rama Rao, Bussi David Raju, Aytam Hari Padmasri, Sivakumar Vasireddy, Naga Ratnakar Adapa, Seetharamulu Podila, Shashikala Veldurthi, Mallanna Nagaraja Bhari, Sanapureddy Sreevardhan Reddy, Ponnapalli Nageswara Sarma, Katuri Krishna Prasad, Reddy Venkata Mohan Srinivasula
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Patent number: 7662294Abstract: Certain exemplary embodiments provide methods for reducing a concentration of a contaminant associated with a medium, which can be any substance or material, such as soil, water, air, and/or fluid. In one exemplary method, the medium is treated with a ferric chelate and an oxidizing agent in amounts effective to oxidize at least a portion of the contaminant.Type: GrantFiled: February 1, 2005Date of Patent: February 16, 2010Inventor: Henry Wilmore Cox, Jr.
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Publication number: 20100025332Abstract: A personally portable water purification compound prepared in unit dosage form such as tablets, packages and the like and having titanium dioxide (TiO2) in the form of fine particles, and adsorbed chlorine held at the surface of the titanium dioxide particles; and a titanium based coagulant; the compound being prepared in a plurality of unit dose size packages, for personal use by individuals. Also disclosed is a method of preparing a personally portable water purification compound consisting of the steps of heating titanium dioxide particles up to a temperature between about 260-500° C., passing a cold dry gaseous chlorine flow around the titanium dioxide particles; and cooling the titanium dioxide during the treatment.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Inventors: Nina N. Stremilova, Serguei V. Stremilov
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Patent number: 7651614Abstract: Systems and methods to treat wastewater are described herein. A wastewater treatment system may include a primary treatment system, a secondary treatment system, a disinfection treatment system, a solids treatment system, one or more fluid treatment systems, or combinations thereof.Type: GrantFiled: February 13, 2008Date of Patent: January 26, 2010Assignee: VRTX Technologies, LLCInventors: Robert L. Kelsey, Qiwei Wang
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Patent number: 7651622Abstract: A process for killing microorganisms and controlling biofouling in high chlorine demand waters comprises mixing two components, one of which is an oxidant and the other an ammonium salt, and adding the mixture immediately to the aqueous system to be treated.Type: GrantFiled: October 2, 2008Date of Patent: January 26, 2010Assignee: Bromine Compounds LimitedInventor: Ayala Barak
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Publication number: 20100012593Abstract: A process is disclosed for treating impure water by introducing a solution of electrolyticially generated silver citrate into the impure water wherein the silver is electrolytically generated in a solution of citric acid and water.Type: ApplicationFiled: September 4, 2009Publication date: January 21, 2010Inventor: Andrew B. ARATA
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Patent number: 7645420Abstract: An automated flushing system removes stagnant water and the micro-organisms it contains from dental unit waterlines when a dental chair is not in use. The system prevents the exponential replication of micro-organisms in dental waterlines and can be used to increase the contact time of disinfectants with adherent biofilms in waterlines.Type: GrantFiled: May 14, 2008Date of Patent: January 12, 2010Inventor: Edward David Fillery
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Patent number: 7641797Abstract: A method for treating a formaldehyde-containing waste liquid, which is formed as a byproduct in a plant for the production of hydrocarbons or oxygen-containing compounds, containing the steps of: subjecting formaldehyde in the liquid to chemical treatment; and treating the resulting waste liquid, while being aerated, by using a membrane bioreactor that is composed of a microorganism or enzyme and a separation membrane.Type: GrantFiled: October 21, 2005Date of Patent: January 5, 2010Assignees: Toyo Engineering Corporation, Water Re-Use Promotion CenterInventors: Hiroaki Ikebe, Masayuki Uchida, Hitoshi Betchaku
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Publication number: 20090324790Abstract: The present invention is directed to methods and systems for reconditioning a used food processing fluid. The reconditioned fluids can be used in an upstream or downstream food processing application.Type: ApplicationFiled: June 26, 2009Publication date: December 31, 2009Applicant: ECOLAB INC.Inventors: John D. Hilgren, Stefanie E. Gilbreth
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Patent number: 7638056Abstract: 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: GrantFiled: June 21, 2004Date of Patent: December 29, 2009Assignee: Rhodia OperationsInventors: Stephanie Edmunds, Douglas Paul Gilbert, Eric Robert Talbot, Manocher Asaadi, Peter Winter