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| Number | Title | Issue Date |
| 8052876 | Process for treating effluents from the oil industry for discharge or reutilization A process is described for treating effluents from oil production units for discharge or reutilization, to remove oil and other soluble toxic contaminants such as sulphides, benzenes, toluenes, xylenes and polyaromatic hydrocarbons, before discharging or reusing thi... | 11/08/2011 |
| 7837883 | Biocides and apparatus 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 bioci... | 11/23/2010 |
| 7776224 | Apparatus for treating ballast water and method for treating ballast water 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 com... | 08/17/2010 |
| 7651622 | Process and compositions for the disinfection of waters 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. ... | 01/26/2010 |
| 7449120 | Process and compositions for the disinfection of waters 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. ... | 11/11/2008 |
| 7416672 | Methods and apparatus for septic tank system chlorination Methods and apparatus for the slow, generally uniform addition of a disinfectant solution comprising an active ingredient, such as chlorine, to achieve a substantially constant level of active ingredient in the liquid of a grey water reservoir of a residential septi... | 08/26/2008 |
| 7407590 | Method for removal of biofilm 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, ... | 08/05/2008 |
| 7341671 | Method of controlling the growth of microorganisms 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 leas... | 03/11/2008 |
| 7320761 | Method for purifying water The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in ... | 01/22/2008 |
| 7311878 | Method and apparatus for producing synergistic biocide 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... | 12/25/2007 |
| 7285221 | Composition for preventing of slime and method for preventing slime A composition for preventing formation of slime which comprises a chlorine-based oxidizing agent, a sulfamic acid compound, one of an anionic polymer or a phosphonic acid compound and a process for preventing formation of slime which comprises adding the composition... | 10/23/2007 |
| 7285224 | Process and compositions for the disinfection of waters 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. ... | 10/23/2007 |
| 7285217 | Removing odoriferous sulfides from wastewater A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. Th... | 10/23/2007 |
| 7279099 | Sludge treatment process 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... | 10/09/2007 |
| 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 |
| 7258802 | Method for controlling bacterial growth in process water 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 biocide... | 08/21/2007 |
| 7252843 | Composition for cleaning contained bodies of water A composition and method for cleaning, sanitizing and maintaining contained bodies of water such as swimming pools, wading pools, fountains, ornamental ponds, etc. The composition includes pre-determined percentages of copper sulfate, zinc sulfate, and aluminum sulf... | 08/07/2007 |
| 7244363 | Methods for treating heavy halide brines with permanganates The present invention relates to the use of permanganate in the removal of heavy metal contaminants from heavy halide brines. In some embodiments, the present invention discloses methods of treating heavy halide brines that comprise providing a heavy halide brine th... | 07/17/2007 |
| 7238290 | Catalytic oxidation of peroxy salts Transition metal ions have the ability to increase the oxidation performance of the inorganic peroxy salts at room temperature by possibly lowering their activation energy or by producing more reactive free radicals. When two transition metal salts are used together... | 07/03/2007 |
| 7233887 | Method of photomask correction and its optimization using localized frequency analysis A method of level assist feature OPC layout is described using frequency model-based approach. Through low-pass spatial frequency filtering of a mask function, the local influence of zero diffraction energy can be determined. By determining isofocal intensity thresh... | 06/19/2007 |
| 7204931 | Stable composition with enhanced biocidal and virucidal effect A storable, stable composition that provides the effective antimicrobial benefits of halogenated agents is presented. The invention includes a water-soluble biocidal composition. The composition includes: about 0.01 to about 10 wt. % of a water-soluble inorganic hal... | 04/17/2007 |
| 7201856 | Water treatment compositions Compositions, methods and kits for purifying and clarifying and/or nutrifying contaminated drinking water and which comprise a primary coagulant material, a microbiocidal disinfectant and an oxidant system. Highly preferred compositions also contain one or more of a... | 04/10/2007 |
| 7201113 | Controlled dilution system for drinking water and unit therefor Apparatus and for providing controlled addition of a first aqueous solution having a first concentration of an aqueous chemical species at a first flow rate to a second aqueous solution having a second flow rate to provide a diluted first solution of a desired selec... | 04/10/2007 |
| 7195782 | Concentrated aqueous bromine solutions and their preparation Described is a process of producing a concentrated liquid biocide formulation. Mixed together are (a) bromine chloride or bromine and (b) an aqueous solution of alkali metal salt of sulfamic acid having a pH of at least about 7, in amounts such that (i) the active b... | 03/27/2007 |
| 7189329 | Control of development of biofilms in industrial process water 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 d... | 03/13/2007 |
| 7182854 | Sanitation system A sanitation system comprising of a first tank for receiving waste water fluid typically comprising solids, a maceration pump for pulling waste water fluid from the first tank, a cross flow filter comprising of media for receiving the sheared fluid forming unfiltere... | 02/27/2007 |
| 7172704 | Method for treating waste water A method for treating waste water fluid, wherein the method comprises the steps of macerating waste water fluid in a first tank forming a sheared fluid, filtering the sheared fluid to remove solids, forming unfiltered waste water and product water, flowing product w... | 02/06/2007 |
| 7169287 | Decomposition apparatus and decomposition method A decomposition apparatus that decomposes a decomposition target is provided. The decomposition apparatus includes a decomposition chamber having a decomposition section that continuously decomposes the decomposition target, an introducing device that continuously i... | 01/30/2007 |
| 7163615 | Method of treating substance to be degraded and its apparatus There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp... | 01/16/2007 |
| 7153438 | Water treatment compositions with masking agent A composition for disinfecting contaminated drinking water. The composition can include a disinfecting agent for disinfecting or sanitizing the water and a masking agent for masking or minimizing undesired characteristics of the disinfecting agent, such as taste and... | 12/26/2006 |
| 7147786 | Method and apparatus for purifying-water The invention relates to a method for purifying water by dissolving one or more soluble metal salts in the water to provide corresponding metal ions, by dissolving hypohalite into the water, and by regulating the residence time, and thus hypohalite concentration in ... | 12/12/2006 |
| 7087251 | Control of biofilm A method of eradicating or at least substantially reducing biofilm on a surface in contact with water, or which comes in contact with water, which method comprises introducing into such water a concentrated aqueous biocidal composition formed from bromine chloride a... | 08/08/2006 |
| 7083707 | Decomposition apparatus and decomposition method A decomposition apparatus for decomposition of decomposition targets such as organic chlorinated compounds is provided. The decomposition apparatus includes a contact section with an internal space to allow a decomposition target to come into contact with and be tak... | 08/01/2006 |
| 7081232 | Chemical feeder An apparatus for dissolving and delivering a solution of a solid chemical material, such as calcium hypochlorite, is described. The apparatus includes in combination: a container, a lid removably mounted on the upper end of the container, and a housing. In operation... | 07/25/2006 |
| 7077297 | Method for preparation of biocides mixed with carbon dioxide in a pressurized container This invention relates to a method for the preparation and metering of substances, mixtures of substances and/or compounds in general, characterized by bacteriostatic and/or bactericidal activity, using a single pressurized container in which the substances, mixture... | 07/18/2006 |
| 7065803 | Method of dispensing cyanuric acid A preferred embodiment method for dispensing a product (121) such as cyanuric acid into an existing swimming pool circulation system includes providing a product (121) placed within a permeable bag (120). The permeable bag (120) containin... | 06/27/2006 |
| 7067056 | Water filter with integrated treatment media For use in a pool or spa, the combination comprising, filter structure in the path of pool or spa water flow, substance in direct contact with a surface or surfaces of said filter structure, to contact said flow, said substance characterized as being one of the foll... | 06/27/2006 |
| 7067063 | Process and compositions for the disinfection of waters 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. ... | 06/27/2006 |
| 7052614 | Control of development of biofilms in industrial process water 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. There is also provided a met... | 05/30/2006 |
