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| Number | Title | Issue Date |
| 8187473 | Functional transition metal silicates The present invention provides a functional transition metal silicate (FTMS) effective as a decontaminant, a disinfectant, a detoxificant, a protectant, a microbicide or combination thereof, comprising a ratio of transition metal to silica in the transition metal si... | 05/29/2012 |
| 8123959 | Treatment of solid particles with functional agents Provided are methods of modifying solid particles with functional agents to provide anti-microbial media. The anti-microbial media comprise a surface-modified inorganic component which is a reaction product of an anti-microbial component and an inorganic component. ... | 02/28/2012 |
| 7943050 | Method for controlling microbial contamination in water A method for controlling the microbial contamination of water. Impure water is passed through a container packed with a specially-treated antimicrobial zeolite material. Zinc ions incorporated into the framework of the zeolite provide the antimicrobial effect. The m... | 05/17/2011 |
| 7785478 | Method for controlling protozoa that harbor bacteria 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 aque... | 08/31/2010 |
| 7780859 | Uncoupling agents 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 ... | 08/24/2010 |
| 7731859 | Process for conditioning sewage sludge 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 slu... | 06/08/2010 |
| 7727406 | Ultraviolet water sterilizer 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 th... | 06/01/2010 |
| 7699995 | Water treatment method 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... | 04/20/2010 |
| 7691274 | Filter installation and method for operating one such filter installation 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... | 04/06/2010 |
| 7666317 | Methods and systems for disinfecting potable water supplies 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 passeng... | 02/23/2010 |
| 7632414 | Process for suppressing the growth of green algae in aqueous systems The process for suppressing the growth of green algae in aqueous systems, such as lakes or rivers, comprises introducing carbon dioxide, preferably industrially produced carbon dioxide, into the water to be treated, thereby acidifying the water and suppressing the g... | 12/15/2009 |
| 7442306 | Autotrofic sulfur denitration chamber and calcium reactor The present invention describes novel biological systems and methods for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments, and the use of catholyte and anolyte for the improved conditioning of water in a... | 10/28/2008 |
| 7438817 | System and method for treatment of acidic wastewater A wastewater treatment system comprising separation unit operations inhibits or promotes the formation and precipitation of species by controlling the pH of wastewater to be treated entering into the separation unit operations. The separation unit operations include... | 10/21/2008 |
| 7429329 | Hybrid chemical/mechanical dewatering method for sewage treatment plants A hybrid chemical/mechanical dewatering sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids agglomeration and disposal methods to meet operating constraints and ... | 09/30/2008 |
| 7425271 | Method for treating sludge Sludge can be treated by placing it in a carrier sized for bulk shipment of sludge by road or by rail. An antipathogenic substance such as lime is mixed into the sludge located in the carrier in order to treat pathogens in the sludge. At least one mixer adapted for ... | 09/16/2008 |
| 7422694 | Process for the microbiological decontamination of water by means of photosensitive agents Cationic phthalocyanine and/or porphyins salts are used as photosterilising agents for microbiologically contaminated waters, particularly for inactivating Gram-positive and Gram-negative bacteria, yeasts, micoplasmas and parasites. Synergistic action for water phot... | 09/09/2008 |
| 7422121 | Process for producing a sterilization system The invention relates to a method for producing a sterilisation system, especially for sterilising drinking water and water for industrial use. The precious metal surface of a base material containing precious metal is initially oxidised in an acidic solution and su... | 09/09/2008 |
| 7419607 | Anti-biofilm forming structure and method of manufacturing the same A biofilm resistant fluid handling system is provided having at least one structural component adapted to retain or deliver fluid. The at least one structural component is formed from a biofilm resistant material comprising polymeric resin and an inorganic carrier c... | 09/02/2008 |
| 7419603 | Water treatment method The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes (22, 24) are provided in a coolant stream (21), and an alternating voltage is applied across the electrodes (22, 24) to pro... | 09/02/2008 |
| 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 |
| 7404902 | Method for treating water A composition for treating water contained in enclosures, such as swimming pools, spas, whirlpool tubs and cooling towers, which includes at least one boron compound, cyanuric acid, at least one mineral remover and at least one clarifier is provided. A composition a... | 07/29/2008 |
| 7402252 | Automated electrolyte addition for salt water pools, spas, and water features An automated system of the present invention adds electrolyte into a pool. The automated system includes a sanitizer generator, a circulation system, and an electrolytic solution delivery system. The circulation system, which includes the sanitizer generator, has a ... | 07/22/2008 |
| 7402253 | Controlled bypass flow and ozone proportion method and system A method and system of ozone treatment diverts a portion of water from a flow of water in a conduit; injects an ozone-containing gas into the portion to provide an ozonated portion; recombines the ozonated portion with the flow of water in the conduit; and controls ... | 07/22/2008 |
| 7396470 | Treatment of environmental pollutants with mineral ores A method for removing a pollutant from emissions or the environment comprising: contacting a mineral ore or the use of a mineral ore selected from the group consisting of bauxite, modified bauxite and mixtures thereof. Typically, the pollutant is a heavy metal or a ... | 07/08/2008 |
| 7391041 | Germicidal UV reactor and UV lamp A germicidal UV reactor for use in fluid purifiers is provided, in which the UV reactor comprises an UV lamp with an UV transparent primary envelope and also an UV transparent secondary envelope around the primary envelope. The outer surface of the secondary envelop... | 06/24/2008 |
| 7390413 | Water softener system and method a water softening system includes a water softening resin tank, an anion resin tank in flow communication with the water softening resin tank, an in-line water heater in flow communication with the water softening resin tank and a heat exchanger in flow communicatio... | 06/24/2008 |
| 7387736 | Pathogen reduction using chloramines 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 dosagebefore being introduced to the production process at processing steps. The... | 06/17/2008 |
| 7384564 | Electrolytic cell and process for removal of bromide ions and disinfection of source waters using silver cathode and/or dimensionally stable anode (DSA): a process for the reduction of disinfectant/disinfection byproducts in drinking water Electrolytic process combines disinfection with removal of bromide from raw water. Current is applied to the electrodes in an electrolytic cell with raw water that has some salinity as the electrolyte. The electrodes consist of silver or dimensionally stable anodes ... | 06/10/2008 |
| 7381686 | Composite for inhibiting algae growth and use therof A composite for inhibiting algae growth comprising a polypore base carrier and a nano-metal mixture coated on the carrier, wherein the mixture comprising a nano-metal particle and a substance for fixing the particle on the carrier. ... | 06/03/2008 |
| 7381334 | Method for inhibiting microbial growth in liquid nutrients A method for making a web having a metal-ion sequestering agent and treating a liquid using the web. The method of making the web includes electrostatically providing at least one metal-ion sequestering agent and/or antimicrobial agent. The web can be used to tread ... | 06/03/2008 |
| 7374692 | Treatment of ballast water The invention relates to hydrocyclones for ballast water treatment. The invention further relates to ballast water treatment systems comprising such hydrocyclones and methods of operating such hydrocyclones and ballast water treatment systems. ... | 05/20/2008 |
| 7371328 | Method for treating hog and animal waste An animal treatment method comprises flushing the animal waste from a barn to a holding tank where the waste is mixed with an alkaline solution to kill pathogens. After neutralization, the solution is separated into solids and liquids. The liquid is treated and recy... | 05/13/2008 |
| 7361275 | Use of derivatized nanoparticles to minimize growth of micro-organisms in hot filled drinks A method and article for removing a selected metal-ion from a solution. The method included providing a container for holding a liquid, the container having an internal surface having a metal-ion sequestering agent provided on at least a portion of the internal surf... | 04/22/2008 |
| 7347941 | Treating micro-organisms in water using boron conditioned enzymes and composition therefor The invention relates to methods and compositions for of treating water systems, particularly recirculating water systems contaminated by a biofilm containing sessile micro-organisms. The method includes the steps of forming a boron conditioned enzyme and contacting... | 03/25/2008 |
| 7347946 | Method for inhibiting microbial growth in liquid nutrients A method for inhibiting growth of microbes in a liquid having a pH equal to or greater than about 2.5 by using a filter bed assembly or filter for filtering the liquid having a metal-ion sequestering agent for removing designated metal ion from the liquid. The liqui... | 03/25/2008 |
| 7341670 | Method for treating wastewater A wastewater treatment system treating excess wastewater from a sewer system includes a generally vertically oriented first shaft structure adapted to receive excess wastewater from the sewer system, a generally vertically oriented second shaft structure spaced apar... | 03/11/2008 |
| 7332088 | Method of water purification The invention provides a method for the removal of biological species, such as Cryptosporidium, from water using aluminium based media which contains surface Al—OH groups. ... | 02/19/2008 |
| 7326330 | Method and apparatus for scale and biofilm control Method and apparatus for electrolytically controlling the formation of scale and biofilm in water purification and other systems. An anode is deposited on or disposed on or adjacent to a surface, such as that of a quartz UV tube, providing a low pH environment which... | 02/05/2008 |
| 7323149 | Supplemental ozone treatment for ensuring the sterility of instrument cleaning systems Methods and apparatus utilizing supplemental ozone treatment for ensuring sterility of instrument cleaning systems. By flushing ozonated water through the components of a cleaning system, the persistent problem of contamination of cleaner chambers, pipes or lines, a... | 01/29/2008 |
| 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 |
