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| Number | Title | Issue Date |
| 8168153 | Process for the production of chlorine dioxide The invention concerns a process for the production of chlorine dioxide comprising generating chlorine dioxide in an aqueous reaction medium in a reaction vessel maintained at super-atmospheric pressure, withdrawing gaseous chlorine dioxide from said reaction medium... | 05/01/2012 |
| 7666384 | Stable chlorine dioxide tablet Provided is a stable solid composition that produces chlorine dioxide upon contact with water. ... | 02/23/2010 |
| 7407642 | Chlorine dioxide generation method A method generating chlorine dioxide is provided. The method uses sodium chlorite solution and diluted sulfuric acid to generate chlorine dioxide with a significantly higher rate of conversion of chlorite to chorine dioxide than has been previously reported with sul... | 08/05/2008 |
| 7407641 | Method for generating chlorine dioxide A chlorine dioxide generator comprises a water eductor surrounded by a variable volume plenum. The plenum casing is threaded onto the venturi body, permitting the plenum volume and area to be modified depending on the capacity required. Chlorine and sodium chlorite ... | 08/05/2008 |
| 7332076 | Water disinfection system using simultaneous multiple disinfectants A water disinfection system using simultaneous multiple disinfectants includes a completely stirred tank reactor (CSTR) and a contact basin or clearwell acting as a plug flow reactor (PFR). The CSTR receives ammoniated water and free chlorine, and generates multiple... | 02/19/2008 |
| 7323107 | Apparatus and method for the treatment of waste A waste treatment system suitable for domestic use and capable of producing water suitable for recycling within the household. The system includes a bioreactor (30) and a decomposition chamber (16). The bioreactor (30) is adapted to digest liqui... | 01/29/2008 |
| 7311884 | Continuous chlorine dioxide generation The present invention provides a system for continuously and efficiently producing low concentrations of aqueous chlorine dioxide from a dilute continuous feed stream of aqueous chlorite. ... | 12/25/2007 |
| 7311270 | Device and methodology for improved mixing of liquids and solids An eductor for mixing liquids and solid particles includes a nozzle, an initial mixing chamber, a first diffuser, an intermediate mixing chamber and a second diffuser. The nozzle includes a semicircular nozzle outlet that is offset from a centrally-located first axi... | 12/25/2007 |
| 7303737 | Generation of chlorine dioxide A method for point-of-use generation of chlorine dioxide wherein the chlorine dioxide is generated quickly and at acceptable concentrations to avoid the need for subsequent dilutions and keeping the product non corrosive to the surface to be treated. A persulfate so... | 12/04/2007 |
| 7285255 | Deodorizing and sanitizing employing a wicking device A device and method for sanitizing and deodorizing including the selective transportation of a sanitizing composition by the capillary action of a wick to an acidic composition which may be held in a reservoir, or which also may be selectively transported through th... | 10/23/2007 |
| 7273585 | Biological fluid disposal system A biological fluid disposal system having a water flow line, a biological fluid line in fluid communication with the water flow line, a disinfectant line in fluid communication with the water flow line and the biological fluid line, and a venturi connected to one of... | 09/25/2007 |
| 7273567 | Energy-activated compositions for controlled sustained release of a gas A composition for energy-controlled generation and release of at least one gas, which includes an energy-activated catalyst capable of being activated by electromagnetic energy, and a solid or a liquid containing anions capable of being oxidized by the activated cat... | 09/25/2007 |
| 7264773 | Method for bioeradication using fine mist of biocide solutions The invention provides a method for generating a homogeneous aqueous mist solution containing a solvent such as water and a biocide agent such as chlorine dioxide, which would otherwise be unstable. The unstable biocide agent or chlorine dioxide is quickly dissolved... | 09/04/2007 |
| 7261821 | Process for treating an aqueous system with chlorine dioxide This invention relates to an automated process for efficiently treating an aqueous system with chlorine dioxide. The process results in high efficiency yields of chlorine dioxide on a continuous basis by minimizing the waste of precursor chemicals. Additionally, the... | 08/28/2007 |
| 7252096 | Methods of simultaneously cleaning and disinfecting industrial water systems On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali... | 08/07/2007 |
| 7252772 | Method for producing an essentially chlorite-free, stable aqueous chlorine-oxygen solution, the chlorine-oxygen solution obtained by means of said method, and the use of the same The invention relates to a method for producing an essentially chlorite-free, stable, aqueous chlorine-oxygen solution. Said method comprises the following steps: (1) a hydrogen sulfate compound is dissolved in water, (2) an acid is added to the aqueous solution con... | 08/07/2007 |
| 7241435 | System and process for producing halogen oxides A system and process for oxidizing inorganic or organic species is disclosed. The system and process includes mixing a dilute aqueous alkali metal halite solution with a mixture of protic acids to produce an effluent containing a halous acid; and contacting the effl... | 07/10/2007 |
| 7220367 | Method and system for the controlled release of chlorine dioxide gas Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the metal chlorite in the presence of water vapor, but does not react wit... | 05/22/2007 |
| 7199681 | Interconnecting of digital devices In some embodiments, a first conducting line, having a characteristic impedance, connects to a digital device while a second conducting line, also having a characteristic impedance, connects to another digital device. An impedance pathway connects the two conducting... | 04/03/2007 |
| 7195744 | Device for holding a container for a composition that produces an antimicrobially active gas A device and method for cleaning and deodorizing a unit having an enclosed space not otherwise easily accessible for cleaning and deodorizing. ... | 03/27/2007 |
| 7182883 | Massive bodies containing free halogen source for producing highly converted solutions of chlorine dioxide A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an acid source such as sodium bisulfate and a source of free halogen suc... | 02/27/2007 |
| 7160484 | Method and device for the production of an aqueous solution containing chlorine dioxide The present invention is generally directed to a method of producing an aqueous solution of chlorine dioxide from the reaction of a metal chlorite and an acid forming component which do not react to produce chlorine dioxide in the substantial absence of water. The r... | 01/09/2007 |
| 7153488 | Suppression of the formation of noxious substances during chloride processes The present invention is directed to the suppression of the formation noxious compounds such as furans. According to the present invention, a venturi device is used to rapidly quench a chlorinator reaction gas. The rapid quench minimizes the resonance time that fura... | 12/26/2006 |
| 7150854 | Device for generating aqueous chlorine dioxide solutions The invention pertains to a device for generating aqueous chlorine dioxide solutions when the device is contacted with liquid water. The device comprises an alkali metal or alkaline earth metal chlorite, e.g., sodium chlorite, and a chemical reagent comprising an ac... | 12/19/2006 |
| 7131495 | Method for preparing a chlorine dioxide block-removing agent in oil wells A method to synthesize a chlorine dioxide block remover in a well is described. The method includes dissolving a chlorate aqueous solution and some acidic substances in water and to produce a hydrogen ion. The chlorate aqueous solution and acidic substances are quic... | 11/07/2006 |
| 7128879 | Chemical generator using hydro-logic system A chemical generator having inlets for receiving multiple reactant and water streams; a dilution chamber; a reaction chamber operably connected to the inlets and to the dilution chamber; an eductor operably receiving the water stream from the one of the inlets and c... | 10/31/2006 |
| 7089684 | System and method for converting a biosolid sludge to a pasteurized stage for use as an organic fertilizer A system for processing biosolids from a sludge pond into fertilizer comprising: a portable dewatering system for removing liquid from sludge, the portable dewatering system having: a collection device for collecting sludge from the sludge pond; a centrifuge for rem... | 08/15/2006 |
| 7087190 | Composition for the production of chlorine dioxide using non-iodo interhalides or polyhalides and methods of making and using the same A composition for the generation of chlorine dioxide including at least one non-iodo interhalide, polyhalide or salt thereof having the formula BrmClnFoXp wherein m=0–3, n=0–4, o=0–3, p=0–2, X i... | 08/08/2006 |
| 7087208 | Methods for making chlorous acid and chlorine dioxide 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... | 08/08/2006 |
| 7077995 | Method for treating aqueous systems with locally generated chlorine dioxide The present invention provides a new method for the in situ generation of chlorine dioxide from a solution of sodium chlorite and carbon dioxide. The present invention produces effective levels of chlorine dioxide without having to resort to the use of hydrochloric ... | 07/18/2006 |
| 7070710 | Chemical composition and method The invention relates to a novel composition useful as a feed at production of chlorine dioxide, said composition being an aqueous solution comprising from about 1 to about 6.5 moles/liter of alkali metal chlorate, from about 1 to about 7 moles/liter of hydrogen per... | 07/04/2006 |
| 7033419 | Method for high temperature mercury capture from gas streams A process to facilitate mercury extraction from high temperature flue/fuel gas via the use of metal sorbents which capture mercury at ambient and high temperatures. The spent sorbents can be regenerated after exposure to mercury. The metal sorbents can be used as pu... | 04/25/2006 |
| 7029553 | Urea sulfate and urea hydrochloride in paper and pulp processing The present invention relates to the use of urea sulfate or urea hydrochloride, or both, in process streams in the paper and pulping industries to control pH, to bring about flocculation or precipitation of various materials, and to replace all or part of the sulfur... | 04/18/2006 |
| 7011751 | Water treatment system A water treatment system for reducing the level of bacteria in a flow of water by creating an environment favorable for aerobic bacteria and unfavorable for anaerobic bacteria is disclosed. The system may include a method including intaking a flow of water, lowering... | 03/14/2006 |
| 6967010 | Chlorine dioxide generator A chlorine dioxide generator comprises a water eductor surrounded by a variable volume plenum. The plenum casing is threaded onto the venturi body, permitting the plenum volume and area to be modified depending on the capacity required. Chlorine and sodium chlorite ... | 11/22/2005 |
| 6913741 | System and process for producing halogen oxides A system and process for oxidizing inorganic or organic species is disclosed. The system and process includes feeding a dilute aqueous alkali metal halite solution into a cation exchange column, wherein the cation exchange column contains a cation exchange material;... | 07/05/2005 |
| 6840251 | Methods of simultaneously cleaning and disinfecting industrial water systems On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water system of a Compound selected from the group consisting of the alkali... | 01/11/2005 |
| 6764661 | Device for producing an aqueous chlorine dioxide solution A device for producing an aqueous chlorine dioxide solution when placed in water. The device includes a membrane shell that defines a compartment which includes one or more dry chemicals (e.g., a metal chlorite and an acid) capable of producing chlorine dioxide gas ... | 07/20/2004 |
| 6761872 | Method for generating chlorine dioxide The present invention provides a new method for the in situ generation of chlorine dioxide from a solution of sodium chlorite and carbon dioxide. The present invention produces effective levels of chlorine dioxide without having to resort to the use of hydrochloric ... | 07/13/2004 |
| 6716354 | Methods of treating water using combinations of chlorine dioxide, chlorine and ammonia Raw water is treated with chlorine, chlorine dioxide and ammonia in various stages as it proceeds from raw water acquisition through clarification (e.g., coagulation, flocculation, sedimentation, and filtration) to storage of finished water from which the treated wa... | 04/06/2004 |
