Class / Patent application number | Description | Number of patent applications / Date published |
210764000 | Destroying microorganisms | 41 |
20080296234 | Controlled release of microbiocides - A container for releasing a microbiocide component into a liquid composition susceptible to unwanted microbial growth (LCMG) includes a LCMG-impermeable casing separate and apart from an internal combustion engine housing, and having a hollow interior and at least one opening. A microbiocide component, for example, at least one LCMG-soluble microbiocide, is located in the hollow interior. At least one LCMG-permeable element is provided at or near an opening in the casing and is effective to provide for release of microbiocide component into the LCMG. Methods of releasing microbiocide component into LCMGs are also provided. | 12-04-2008 |
20090039034 | 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 aqueous system. | 02-12-2009 |
20090039035 | METHOD FOR CONTROLLING MICROBIAL BIOFLIM IN AQUEOUS SYSTEMS - 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. | 02-12-2009 |
20090107925 | APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS - Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes mote than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water. | 04-30-2009 |
20090127210 | Method and apparatus for water remediation - A method and apparatus for water remediation in general and particularly, for killing bacteria, algae and other microorganisms in water used to fracture-stimulate oil and gas wells and using a coagulant and/or a flocculant for removing the dead microorganisms. A biocide is first introduced into a pit or tank containing the water to be treated and after the microorganisms are dead, the flocculent is added to the biocide-treated water to remove the dead microorganisms. Sequential introduction of the biocide and flocculant into the water to be treated may be accomplished by a number of techniques and after each biocide application the water is tested to determine the remaining living microorganism concentration. The clarity of the treated water is then determined after removal of the dead microorganisms from the water using the flocculant. Recycle and circulation pumps are used in combination with treatment tanks, stationary and movable booms and other equipment to sequentially introduce the biocide and the flocculant into the pit or tank and diffuse these chemicals in the water. | 05-21-2009 |
20090134099 | 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. Methods of making the media include agitating inorganic base material in a processing tank substantially simultaneously with spraying the anti-microbial component into the processing tank to form a coated base material. Methods of making the media also include maintaining a ratio of the anti-microbial component to the inorganic component such that the coated base material is below its compaction point. Methods of use are also provided. | 05-28-2009 |
20090294382 | Method for Treating Ship Ballast Water - A method for treating ship ballast water in which aquatic organisms in the ship ballast water are exterminated by adding hydrogen peroxide or a compound producing hydrogen peroxide in an amount such that a hydrogen peroxide concentration comes to be 10 to 500 mg/L to the ship ballast water, and then providing physical means for causing shear strength and/or cavitation to the ship ballast water. | 12-03-2009 |
20100078393 | BIOCIDAL COMPOSITIONS AND METHODS OF USE - 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. | 04-01-2010 |
20100147778 | Borate Micro Emulsion and Method for Making the Same - 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. | 06-17-2010 |
20100187188 | WASTEWATER TREATMENT SYSTEM AND METHOD - 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. The treating agent dispenser is operative to introduce the treating agent to thereby sufficiently disinfect at least a portion of the wastewater. | 07-29-2010 |
20100224572 | Water Treatment Device and Method - 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. | 09-09-2010 |
20100243581 | Methods and means for economically assuring improved potable water quality management for aircraft and other applications - 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. | 09-30-2010 |
20100300985 | System and Methods for Treatment of Water Systems - 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. | 12-02-2010 |
20110132848 | APPARATUS AND METHOD FOR CHLORINATING SWIMMING POOLS - A submersible apparatus, having at least one aperture formed in the body of the apparatus and one or more sanitizing or disinfecting tablets being contained within the apparatus, is placed into a swimming pool or other body of water. Initially, the combined mass of the apparatus and the chlorine tablets contained within the body of the apparatus will have slightly negative buoyancy and, as the apparatus sinks into the water, the position of the apparatus will stabilize (e.g., reach neutral buoyancy) at a position at or near the bottom of the swimming pool. As the chlorine tablets interact with the water in the swimming pool and slowly dissolve, the buoyancy of the apparatus increases (becomes more positive) and the apparatus gradually rises vertically until it reaches the surface of the swimming pool. | 06-09-2011 |
20110132849 | Infusion of combustion gases into ballast water preferably under less than atmospheric pressure to synergistically kill harmful Aquatic Nuisance Species by simultaneous hypercapnia, hypoxia and Acidic pH level - Aquatic nuisance species (ANS) in ship's ballast water are killed by permeating to equilibrium a gaseous mixture consisting essentially of, preferably, ≧84% nitrogen, ≧11% carbon dioxide and ≦4% oxygen through ship's ballast water until the ballast water itself becomes (i) hypercapnic to ≧20 ppm carbon dioxide, and, by association, (ii) acidic to pH ≦7, while preferably further, and also, being rendered (iii) hypoxic to ≦1 ppm oxygen. The permeating is preferably realized by bubbling the gaseous mixture preferably obtained from an inert gas generator through the ballast water over the course of 2+ days while the ballast water is continually maintained a pressure less than atmosphere, preferably −2 p.s.i. or less. The (i) hypercapnic, (ii) acidic and (iii) hypoxic conditions—each of which can be independently realized—synergistically cooperate to kill a broad range of ANS in the ballast water without deleterious effect on the environment when, and if, the ballast water in which the balance of dissolved gases has been changed is discharged. | 06-09-2011 |
20110284479 | Double Chamber Water Purification Device - A portable device for filtering and purifying water comprised of an outer chamber and an inner chamber that is slidable within a section of the outer chamber, and a small pore size pre-filter, whereby water is drawn through the pre-filter into the first container section of the outer chamber where it is isolated and treated with a disinfectant agent, then is drawn out of the first container section and into the second container section, and then into the inner chamber, where it is passed across another filtering material such as an activated carbon bed, removing any remaining contaminants before the potable water exits through a mouthpiece. | 11-24-2011 |
20120012538 | METHOD OF TREATMENT OF BALLAST WATER - A method of treating ballast water. The method consists of a step of using as a concentrated brine solution having such a high degree of salinity as to kill organisms in the ballast water treatment system. The source of the concentrated brine solution is, preferably, the concentrated hypertonic brine solution produced by a ship's desalination unit. | 01-19-2012 |
20120091070 | Multi-Stage Water Treatment and Enrichment Method and Apparatus - Some embodiments provide a multi-stage water treatment and enrichment apparatus with an upper water reservoir, a lower water reservoir, a cartridge that is composed of a porous filter and multiple seep through chambers that treat and enrich water, a water dispensing tap valve, and a preservation cartridge. Collectively, these components function (1) to provide multiple levels of treatment including filtration and purification, (2) to provide enrichment of water via mineralization, magnetization, softening, and alkalinization, (3) to provide for customizability of the treatment and enrichment so that different consumers can adapt these processes to satisfy their own personal preferences, (4) to provide an apparatus that operates using gravitational forces and without the need for external power or pressure to perform the multi-stage treatment and enrichment of water, and (5) to provide an inexpensive apparatus that is suitable for primary usage in the home. | 04-19-2012 |
20120091071 | Liquid Pump Apparatus and Method - Embodiments of the invention provide liquid pump apparatus. The apparatus may comprise an immersion assembly comprising at least one immersion member having a liquid conduit provided therein along at least a portion of a length thereof, the immersion assembly being arranged whereby in use at least a portion of the immersion assembly is immersed in liquid to be pumped, the apparatus being arranged to provide a supply of gaseous fluid to liquid in the tank through the at least one immersion member at one of a plurality of vertically spaced apart locations of the assembly thereby to cause passage of liquid through the assembly from a liquid inlet aperture to a liquid outlet aperture of the assembly, the apparatus being configured whereby a location at which gaseous fluid is supplied to the immersion assembly is selected to be a location at which a head of pressure of liquid in the tank is within a prescribed range of values. | 04-19-2012 |
20120097620 | METHOD AND DEVICE FOR TREATING BALLAST WATER WITH ACROLEIN - A apparatus for treating ballast water with acrolein which is to be connected to a main ballast water line of a ballast water unit, comprises a reactor device to which acrolein derivate and water is to be fed for generating an aqueous acrolein solution, a branch line which is connected to the main ballast water line for branching off a partial ballast water stream, and a mixing device which is connected to the branch line and an acrolein solution supply line from the reactor device and is designed for diluting the aqueous acrolein solution from the reactor device, and a feed device for supplying the aqueous acrolein solution from the mixing unit to the main ballast water line. In the method for treating ballast water with acrolein, an acrolein derivate and hydrolysis water are mixed in a reactor device for generating an aqueous acrolein solution, a partial water stream branched of from the main ballast water stream at an branching location, is mixed with the acrolein solution supplied from the reactor device and mixed thereby, and the partial ballast water stream treated with the acrolein solution is fed back to the main ballast water stream downstream of the branching location. | 04-26-2012 |
20120187052 | BACTERIA DEACTIVATION METHOD AND APPARATUS - A bacteria deactivation device that has a porous medium through which water and bacteria contained in the water, like | 07-26-2012 |
20120318751 | BALLAST WATER TREATMENT EQUIPMENT, A BALLAST WATER DETOXIFYING TREATMENT SYSTEM USING THE SAME, AND A METHOD FOR TREATING THE BALLAST WATER - The present invention provides ballast water treatment equipment which can decompose fungicide included in ballast water and reduce the amount of use of fungicide adsorbing material by passing through the ballast water. | 12-20-2012 |
20130037492 | System and Method for Optimizing the Mixing of Hypochlorite with Ballast Water - Systems, apparatus and methods are provided for treating ballast water by chemical injection using an injector having a geometry that minimally obstructs the ballast water flow to accomplish homogeneous mixing of hypochlorite with the ballast water within a short distance. The injector is inexpensive and has a configuration that may be easily installed and maintained. | 02-14-2013 |
20130193082 | Method of Improving the Water Quality in Aquatic Ecosystems - A method for improving water quality in aquatic ecosystems is described. An effective amount of | 08-01-2013 |
20140014594 | ION ENHANCEMENT - A method and apparatus for treating a body of water to kill microorganisms by enhancing the concentration metal ions therein. The apparatus comprising a dispenser with a first housing having a water accessible compartment containing 5,5-dimethylhydantoin for releasing the 5,5-dimethylhydantoin when contacted by the body of water and a second housing having a water accessible compartment containing a biocidal metal to the body of water for generating biocidal metal ions when contacted by the body of water containing the 5,5-dimethylhydantoin | 01-16-2014 |
20140158640 | PORTABLE PATHOGEN DEACTIVATION METHOD AND APPARATUS - A portable, non-filtering, microorganism deactivation device for treating water contaminated with harmful bacteria such as | 06-12-2014 |
20140158641 | DISINFECTING WATER DEVICE - Described herein are devices for providing drinking fluid from feed sources comprising: a first reservoir, a filter for mechanically removing particles and a second reservoir for receipt of the processed feed fluid. A continually disinfecting element is disposed in either or both reservoirs to remove additional materials from the fluid. Drinking fluid is provided in a portable device. Optional light sources are provided to interact with the disinfecting elements and/or provide an indication of the contained suitability of such disinfecting elements. A method for creating drinking fluid from a feed source is also disclosed. | 06-12-2014 |
20140175026 | Precision Lime Stabilization Sytem and Method for Treatment of Sewage Sludge - A lime stabilization system for treatment of sewage sludge, and method is provided in which dewatered sludge and lime are provided to a mixer. Lime and sludge are mixed to raise the pH during which volatiles are driven off with or without supplemental heat. A forced air draft prevents steam from backing up into the lime supply. The sludge goes to a discharge station via a transfer apparatus, and air containing any dust, odors, steam or ammonia is cleaned via a scrubber. The system is computer-controlled via gravimetric load cells and/or volumetric means. The system includes computer controlled means for dissolving scale resulting from exposure of surfaces to lime, using acid, water or combinations thereof. | 06-26-2014 |
20140202964 | ANTIMICROBIAL POLYCATIONIC SAND FILTER FOR WATER DISINFECTION - A composition comprised of sand and a hydrophobic polycationic polymer covalently bonded to the sand is provided. Exemplary polycationic polymer are N,N-hexyl, methyl-PEI or N,N-dodecyl, methyl-PEI. This antimicrobial polycationic sand filter uses the antimicrobial properties of hydrophobic polycations (N-hexylated polyethylenimine). The sand filter inactivates microorganisms, as water is run through the sand. Preliminary sand washing methods can be used regenerate the inactivation efficacy. Unlike traditional water disinfectants, the polycationic sand filter does not create harmful disinfection byproducts and does not require large chemical and energy consumption. | 07-24-2014 |
20140202965 | Method for Killing Aquatic Organisms in Liquid and Method and Apparatus for Killing Aquatic Organisms in Ballast Water - It is an object to provide a method for killing aquatic organisms in liquid by which aquatic organisms in liquid can be killed at low cost, and the object is attained by a method including a first step of generating microbubbles in a range of 4 to 100 μm from bubbles containing ozone discharged into liquid in a pipe, a second step of forcibly crushing the microbubbles in the pipe generated at the first step to generate OH radicals as a result of crushing of the microbubbles themselves due to the forcible crushing, and a third step of generating OH radicals as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due to the forcible crushing of the microbubbles, wherein the OH radicals generated at the second and third steps, OH radicals generated as a result of self-crushing of the microbubbles themselves in the liquid in the pipe, and OH radicals generated as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due to the self-crushing are brought into contact with aquatic organisms in the liquid in the pipe. | 07-24-2014 |
20140217038 | SATURATION LIMITED FEEDER FOR CHEMICAL ADDITIONS - A chemical feed method and apparatus that uses the solubility limit of a specific chemical to provide a measured dose. The invention includes a container of a specific volume into which a solid chemical is placed and held. The chemical dissolves until it approaches its solubility limit. When the system requires a dose of chemical, the container is flushed and a controlled dose of the chemical is fed in to the system. The invention can be combined with kinetic dissolution to allow a larger dose from a given feeder. | 08-07-2014 |
20140299555 | METHOD AND SYSTEM FOR RECYCLING GREYWATER - The invention relates to a method and system for recycling domestic greywater. Greywater is drawn from a greywater waste pipe through an overflow pipe of a sanitary fixture, thereby, permitting greywater to be collected for reuse without the need for complicated and expensive retrofitting and/or reconfiguration of existing plumbing infrastructure. The system and method of the present invention can easily operate independently or be integrated with domestic utility systems to supply these utility systems with greywater. | 10-09-2014 |
20150008192 | FLUID DECONTAMINATION METHOD - A method for decontaminating a biologically contaminated fluid, comprising the steps of: providing a substrate comprising an open-cell foam at least substantially coated with a solution consisting essentially of an organo-functional silane-based quarternary ammonium salt at a concentration of between approximately 0.10 percent to approximately 3.7 percent in water; at least substantially drying said solution on said substrate; placing said coated substrate in a container; introducing into said container a fluid to be decontaminated; and agitating the container for a period of time sufficient to substantially biologically decontaminate said fluid. | 01-08-2015 |
20150027962 | Process for treating with a chemical compound a body of water used in aquaculture - A process for treating with at least one chemical compound a body of water comprising at least one living organism selected from fish, molluscs, crustaceans and aquatic plants, such process comprising adding the chemical compound to the body of water and agitating the water with an agitation system comprising a pump and at least one submerged outlet equipped with an eductor nozzle. | 01-29-2015 |
20150048034 | Drain Pan Treatment Apparatus Utilizing Recycled Condensate Water - In or in combination with an evaporative air conditioner system having no external water source delivering water to the air handler unit, the invention is a drain pan treatment apparatus utilizing recycled condensate water to create a chemical solution that is delivered into the drain pan to prevent growth of algae and other microorganisms that may clog the drain port or drain conduit. The drain pan treatment apparatus comprises a diverter connector that directs a small amount of condensate water from the drain conduit or drain pump into a chemical canister containing a soluble solid chemical to create a chemical solution. The chemical solution is then delivered into the drain pan. If the air conditioner system does not include a drain pump, then a drain pump is added to deliver the condensate water to the chemical canister. | 02-19-2015 |
20150336804 | COMPOSITIONS AND METHODS FOR PREPARING COPPER-CONTAINING PAPER AND USES THEREOF - The invention comprises an environmentally benign method for the direct in situ preparation of copper nanoparticles (CuNPs) in paper by reducing sorbed copper ions with ascorbic acid. Copper nanoparticles were quickly formed in less than 10 minutes and were well distributed on the paper fiber surfaces. Paper sheets were characterized by x-ray diffraction, scanning electron microscopy, energy dispersive x-ray spectroscopy, and atomic absorption spectroscopy. Antibacterial activity of the CuNP sheets was assessed for by passing | 11-26-2015 |
20150351389 | Biocide formulation and method for treating water - The present invention provides a biocide formulation comprising a biocide in a micelle, wherein the micelle comprises a block copolymer having a biocide-solubilizing part and a water-soluble part, and a quaternary ammonium stabilizing compound. The present invention also provides a method for controlling microorganisms by eliminating and/or preventing biofilm formation in an aqueous environment. | 12-10-2015 |
20150360978 | METHOD AND APPARATUS FOR SANITIZING WATER DISPENSED FROM A WATER DISPENSER HAVING A RESERVOIR - A method and apparatus of sanitizing drinking water to be dispensed from a water dispenser having a reservoir includes the steps of providing the ozone gas generator that generates an ozone gas stream, transmitting the ozone gas stream from the generator to the water dispenser reservoir, mechanically breaking up the ozone gas stream inside the reservoir to produce ozone gas bubbles, and using the ozone gas bubbles to disinfect water in the reservoir. The ozone gas stream can be mechanically broken up using a pump such as, for example, an impeller type pump. | 12-17-2015 |
20160052806 | An Apparatus for Germ Reduction of a Fluid and a Process for use Thereof - A static devolatilisation apparatus ( | 02-25-2016 |
20160075573 | METHODS FOR TREATING A FLUID CONTAMINATED WITH BACTERIA - The invention provides a method for treating a fluid contaminated with bacteria, the method comprising passing the fluid through a first filtration layer comprising a first membrane and an effective amount of capsaicin disposed adjacent said first membrane. Optionally, a second filtration layer may also be provided, the second filtration layer being disposed downstream of the first filtration layer, the second filtration layer comprising a second filtration membrane and an effective amount of activated carbon disposed adjacent the second membrane. The methods have particular application in treating water contaminated with the bacterium | 03-17-2016 |
20190144313 | DISINFECTION METHOD FOR WATER AND WASTEWATER | 05-16-2019 |