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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 30165. Отображено 100.

02-02-2012 дата публикации

Method for treating a substance with wave energy from plasma and an electrical arc

Номер: US20120024718A1

Автор: Todd Foret

Принадлежит: Foret Plasma Labs LLC

An apparatus for synergistically combining a plasma with a comminution means such as a fluid kinetic energy mill (jet mill), preferably in a single reactor and/or in a single process step is provided by the present invention. Within the apparatus of the invention potential energy is converted into kinetic energy and subsequently into angular momentum by means of wave energy, for comminuting, reacting and separation of feed materials. Methods of use of the apparatus in the practice of various processes are also provided by the present invention.

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Номер записи: 1

09-02-2012 дата публикации

Compact upright bioreactor for the elimination of nutrients

Номер: US20120031836A1

Автор: Manuel Alvarez-Cuenca, Maryam Reza

Принадлежит: Individual

In accordance with particular process, method and system aspects there is provided a biological manner of treating water/wastewater. Treatment is undertaken in bioreactor configured to treat the water/wastewater through a first process of denitrification followed by a second process of biological phosphorus removal. The bioreactor may be defined by multiple stages arranged in compact vertical alignment, for example, to reduce a footprint of the bioreactor and to feed the water/wastewater between the stages using gravity. The stages may comprise, in order, a Deaeration stage, an Anoxic stage, an Anaerobic stage, and an Aerobic stage. Continuous vacuum operation in the Deaeration stage enhances the physical removal of oxygen and other dissolved gases.

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Номер записи: 2

09-02-2012 дата публикации

Stabilization of biosolids using iron nanoparticles

Номер: US20120034286A1

Автор: Wei-xian Zhang

Принадлежит: Lehigh University

This invention discloses a stabilized biosolids composition and a method for the stabilization of biosolids. It entails the use of a chemically and biologically reactive material, in the form of ultrafine iron particles. The nanometer-sized iron particles are capable of degrading odorous organosulfur compounds, transforming persistent and toxic organic pollutants such as PCBs and chlorinated pesticides, inhibiting the growth of pathogens by increasing pH and maintaining the increased pH of the stabilized biosolids, immobilizing toxic metal ions such as mercury and lead, and improving the overall quality of biosolids for land application and plant growth.

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Номер записи: 3

01-03-2012 дата публикации

Groundwater Remediation Process

Номер: US20120048812A1

Автор: Wayne A. Terwilliger

Принадлежит: Individual

A groundwater remediation process with an advanced oxidation process (AOP) process called hydroxy-zone. The hydroxy-zone process uses ozone gas injection combined with potassium hydroxide treatment to generate hydroxyl radicals. Hydroxy-zone uses a chemical process in which the chemicals OH − and O 3 ; are mixed in a liquid and gas form and are then injected into the groundwater below the treatment zone to treat the sorbed and dissolved contaminated layer This particular AOP involves the generation of OH o by the combined reaction of a hydroxide anion (OH − ) and O 3 (ozone) gas

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Номер записи: 4

05-04-2012 дата публикации

Thin film composite membranes incorporating carbon nanotubes

Номер: US20120080380A1

Автор: Gary William Yeager, Hua Wang, Joseph Anthony Suriano, Steven Thomas Rice

Принадлежит: General Electric Co

Processes for manufacturing a thin film composite membrane comprising multi-walled carbon nanotubes include contacting under interfacial polymerization conditions an organic solution comprising a polyacid halide with an aqueous solution comprising a polyamine to form a thin film composite membrane on a surface of a porous base membrane; at least one of the organic solution and the aqueous solution further including multi-walled carbon nanotubes having an outside diameter of less than about 30 nm.

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Номер записи: 5

05-04-2012 дата публикации

Formulations for use in sulfur scale control in industrial water systems

Номер: US20120080641A1

Автор: Attila G. Relenyi

Принадлежит: AMSA Inc

Formulations of the present invention contain compounds of Formula (I) that are used as Sulfur Scale Inhibition and/or Removal Agents in the treatment of Industrial Water Systems.

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Номер записи: 6

24-05-2012 дата публикации

Water purification and enhancement systems

Номер: US20120125203A1

Автор: Carl V. Thompson, Eugene A. Fitzgerald, Richard Renjilian, Thomas Langdo, Ya-Hong Xie

Принадлежит: Water Initiative LLC

Water purification system comprising filtration media sized with respect to each other to allow a first contaminant in the water to saturate the first medium with a delay prior to saturation of the second medium with a second contaminant.

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Номер записи: 7

01-11-2012 дата публикации

Water treatment apparatus and process to reduce pipe scale and biomass using positive pressure ultraviolet oxygenation

Номер: US20120272676A1

Автор: Clive Ling, Eugene Klochkoff, Steven Lerman

Принадлежит: Cascade Water Services Inc

A method of treating water in order to minimize scaling and biomass buildup in water conduits or containers in which the treated water is used includes pressurizing and optionally filtering ambient air, processing the pressurized ambient air in a chamber including at least one ultraviolet light source operated to generate an output flow mixture of pressurized air and reactive oxygen species (ROS) gas, mixing the pressurized ROS/gas output mixture to realize a flow of water/pressurized ROS gas/air mixture and outputting the flow of water/pressurized ROS gas/air mixture as the treated water process product. The process includes generating reactive oxygen species (ROS) gas in the pressurized ROS/gas output mixture including at least one of Super Oxide (O 2 − ), Peroxide (—O 2 —), Hydro peroxide (HO 2 − ), Hydroxyl Radicals (OH·), Ozone (O 3 − ) and Molecular Oxygen (O 2 ). The ultraviolet light source, the flow rate of the pressurized air, the water, the water/pressurized ROS gas/air mixture and the output volume are controlled to optimize scaling and biomass reduction.

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Номер записи: 8

22-11-2012 дата публикации

Personal Advanced Oxidation Water Treatment System

Номер: US20120292261A1

Автор: John A. Pidgeon, JR., Michael J. Fleck

Принадлежит: Individual

A portable, personal advanced-oxidation water treatment system based on ozone and a catalyst such as titanium dioxide that can cycle and purify water to make it portable by removing organic contaminants. The unit can be used for long periods of time without having to replenish the active portions. The unit can be carried in a backpack or in a vehicle. Fresh water is typically loaded into the unit, and the unit is cycled until the water is pure enough to drink. A battery is used to produce ozone and to cycle the water through a reaction vessel and can optionally be charged with a small solar panel The unit can also be powered directly from a vehicle.

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Номер записи: 9

06-12-2012 дата публикации

Method for reducing organic waste in waste water

Номер: US20120305475A1

Автор: George John Joseph Pearson

Принадлежит: Individual

A method of treating waste water is disclosed which comprises placing a porous container such as a mesh bag containing a gelatinous culture of vegetative bacteria into waste water. The gelatinous culture dissolves over time and releases the bacteria contained therein. In some embodiments, the porous container may be reclaimed at any time. Treatment with the method eliminates a substantial portion of organic waste found in waste water and reduces or eliminates the need for used to eliminate organic waste build up in waste water facilities.

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Номер записи: 10

20-12-2012 дата публикации

Systems and methods for performing the bacterial disinfection of a fluid using point radiation sources

Номер: US20120318749A1

Автор: Edward Brittain Stokes, Jennifer Godwin Pagan, Thomas Andrew Schmedake

Принадлежит: Individual

A system for disinfecting a fluid, including: a flow cell including one or more inlet ports and one or more outlet ports, wherein the flow cell is configured to communicate a fluid containing a biological contaminant from the one or more inlet ports to the one or more outlet portions through an interior portion thereof; and one or more point radiation sources disposed about the flow cell, wherein the one or more point radiation sources are operable for delivering radiation to the biological contaminant; wherein an interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources; and wherein the interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources such that a radiation intensity is uniform throughout the interior portion of the flow cell. In one exemplary embodiment, the flow cell is an integrating sphere. Optionally, the system also includes a photocatalyzing material disposed on at least a portion of the interior surface of the flow cell.

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Номер записи: 11

17-01-2013 дата публикации

In situ bioremediation of contaminated groundwater using electron acceptor salts

Номер: US20130015126A1

Автор: Ravindra Vasant KOLHATKAR

Принадлежит: Chevron USA Inc

A process is provided for bioremediating petroleum hydrocarbon contaminated groundwater by applying at least one electron acceptor salt to a ground surface overlying the contaminated groundwater. The process includes identifying characteristics of the aquifer, in which the contaminated groundwater is found, to enable treatment of aquifers at a range of depths below the ground surface.

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Номер записи: 12

31-01-2013 дата публикации

Fluid Filtration Medium

Номер: US20130026103A1

Автор: Ronald L. Coufal, Stephen L. Peterson

Принадлежит: Zeotech Corp

The present application relates to improved filtration of fluids. Particularly, a surfactant-treated zeolite material may be utilized for removing turbid particles from a volume of fluid, such as water.

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Номер записи: 13

31-01-2013 дата публикации

Sol-gel derived compositions

Номер: US20130029843A1

Автор: Paul L. Edmiston, Stephen R. Spoonamore

Принадлежит: ABS Materials Inc

Disclosed are sol gel derived materials obtained from at least one first precursor and at least one second precursor, as well as sol gel derived compositions containing a plurality of alkylsiloxy substituents obtained from such sol-gel derived materials.

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Номер записи: 14

14-02-2013 дата публикации

Nonwoven nanofiber webs containing chemically active particulates and methods of making and using same

Номер: US20130037481A1

Автор: Bernard Vincent, Bret W. Ludwig, David L. Vall, Gerry A. Hoffdahl, Jean Le Normand, Jimmy M. Le, Lahoussaine Lalouch, Laurie L. Poluha, Tien T. Wu

Принадлежит: 3M Innovative Properties Co

Nonwoven fibrous webs including a multiplicity of discrete fibers, a population of sub-micrometer fibers having a population median diameter less than one micrometer adjoining the discrete fibers, and a multiplicity of chemically active particulates secured to the nonwoven fibrous web. In some embodiments, more than 0% and less than 10% wt. of the nonwoven fibrous web is made of discrete fibers that are thermoplastic polymeric fibers, and which optionally at least partially melt and coalesce to secure the discrete polymeric fibers to each other. In certain embodiments, at least some of the particulates are bonded to the thermoplastic polymeric fibers. In other embodiments, at least some of the particulates are secured within interstices of the fibrous web, without substantial bonding to the discrete fibers. Methods of making and using such nonwoven fibrous webs are also described.

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Номер записи: 15

14-02-2013 дата публикации

Poly (sulfoaminoanthraquinone) materials and methods for their preparation and use

Номер: US20130037487A1

Автор: Mei-rong Huang, Shao-jun Huang, Xin-Gui Li

Принадлежит: TONGJI UNIVERSITY

Poly(sulfoaminoanthraquinone) polymer compositions and methods of making these compositions are disclosed herein. The polymer compositions can, for example, be used for removing metal ions from a sample.

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Номер записи: 16

28-02-2013 дата публикации

Gas burial disposal capsules

Номер: US20130053612A1

Автор: Bader Shafaqa Al-Anzi

Принадлежит: Individual

The water aeration capsules provide a quick and highly portable system for aerating polluted water. The capsules contain bubbles of air, oxygen, and/or other gas(es) surrounded by a water soluble membrane. The capsules are ballasted to sink. Magnetically attractive ballast elements may be provided, and a magnetic sheet may be placed on the bottom of a smaller body of water to enhance the settling of the capsules. The gas burial disposal capsules may be formed of non-degradable material for substantially permanent gas storage, or of degradable material to allow the gases to slowly permeate the surrounding earth for slow and relatively harmless release. The gas may be pressurized within the capsules to approximately the pressure of the surrounding earth.

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Номер записи: 17

07-03-2013 дата публикации

Methods for the treatment of ballast water

Номер: US20130056648A1

Автор: II Richard W. Fahs, Matthew D.W. Fahs

Принадлежит: Fahs Stagemyer LLC

A process has been developed to selectively dissociate target molecules into component products compositionally distinct from the target molecule, wherein the bonds of the target molecule do not reform because the components are no longer reactive with each other. Dissociation is affected by treating the target molecule with light at a frequency and intensity, alone or in combination with a catalyst in an amount effective to selectively break bonds within the target molecule. Dissociation does not result in re-association into the target molecule by the reverse process, and does not produce component products which have a change in oxidation number or state incorporated oxygen or other additives because the process does not proceed via a typical reduction-oxidation mechanism. This process can be used for the remediation of water, particularly ballast water.

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Номер записи: 18

14-03-2013 дата публикации

Polymeric complex supporter with zero-valent metals and manufacturing method thereof

Номер: US20130062557A1

Автор: Chin-Chih Tai, Yuan-Pang SUN

Принадлежит: GEONANO ENVIRONMENTAL Tech Inc

A zero-valent metal polymeric complex supporter (ZVM-PCS) is disclosed. The PCS possesses porous surface and internal coralloid-like channel structure that can accommodate high amount of iron-containing materials and derivatives thereof. The surface pore size, porosity, hydrophilicitv, and internal coralloid-like channel structure of PCS can be tailored through the manufacturing process, with which PCS can be functioned as a regulator for the releasing of produced hydrogen, and also control the adsorption and reactions toward heavy metals and chlorinated volatile organic compounds in water. The hydrogen released from the ZVM-PCS can be applied to anaerobic bioremediation. Moreover, the ZVM-PCS can be filter materials that can be installed in a column or any storage for water and wastewater treatment, or even in a groundwater cut-off barrier for the cleanup of contamination. While the ZVM-PCS is synthesized as a film without surface openings, it can be used as the electromagnetic interference (EMI) shielding material.

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Номер записи: 19

21-03-2013 дата публикации

Methods and Compositions For the Prevention of Struvite Scale Formation In Wastewater Systems

Номер: US20130068695A1

Автор: Jerry Elliott RADEMAN, Mark Shand, Matthew P. Madolora, Ronald WARDLE

Принадлежит: Individual

A blend of micro-crystals of magnesium ammonium phosphate and other seed materials with magnesium hydroxide slurries reduces struvite scale in wastewater collection systems leading into waste-water treatment plants. These “seeds” act as attractants to phosphates and ammonia to allow the seeds to grow and remain dispersed throughout the waste water system. This greatly minimizes, or prevents struvite scale from building up in unwanted areas such as pipes, pumps, and valves that could potentially cause water flow blockage.

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Номер записи: 20

02-05-2013 дата публикации

Advanced Biologic Water Treatment Using Algae

Номер: US20130105388A1

Автор: Jared W. Sylvester, Jesse D. Weidow, Kevin S. Mcgraw, Michael W. McGowan, Ricky L. Johnson, Steven A. Weidow, Terry S. Robinson

Принадлежит: AlgEvolve, LLC

An advanced water treatment method processes a continuous flow of water in a sequence of stages including pre-filtering [ 200 ] to remove solids, conditioning [ 202 ] to adjust pH, blending [ 210 ] with a recycled dense microalgae culture, and passing the resulting mixture through an enclosed, environmentally-controlled photobioreactor [ 212 ] where nutrients, PCB's, trace metals and other pollutants and regulated compounds are taken up by the algae. The flow from the PBR is separated using cross-flow filtration [ 222 ] to produce a treated water flow and a dense microalgae flow that is recycled to the blending stage [ 210 ] upstream. Thus, whereas the algae is recycled, the water entering the system is treated by flowing sequentially through the stages of the system, without any recycling or repetition of treatment stages. A pig-type cleaning system is also provided.

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Номер записи: 21

16-05-2013 дата публикации

Multistage daf-advanced oxidation system

Номер: US20130118988A1

Автор: Alfred TYLER, William Fields, Yuanchun XU

Принадлежит: WSI INTERNATIONAL LLC

A multistage dissolved air flotation and advanced oxidation (MDAF-AO) system/method with multi-functions in oil recovery, solids removal, emulsion breaking, and advanced oxidation. Influent, with oil and suspended solids, enters a first stage for oil recovery includes a gas ionizer and an air dissolving pump. A second stage includes of two coagulation/flotation compartments connected in serial to enhance solids removal efficiencies. Micro air bubbles are created by air dissolving pumps in each compartment. A third stage is for the emulsion breaking unit to further remove or recover the emulsified oils. A fourth stage includes advanced oxidation by using ultraviolet (UV) and hydrogen peroxide to oxidize and disinfect the bacteria and microorganisms.

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Номер записи: 22

20-06-2013 дата публикации

Water treatment apparatus and systems

Номер: US20130153515A1

Автор: Beom-Keum Kwon, Dong-Keun Kang

Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Apparatus and systems for water treatment, as well as methods for treating water, are provided. An apparatus for water treatment may include one or more reactors configured for water treatment, one or more light sources configured to provide ultraviolet light inside the one or more reactors, a photocatalyst positioned in each of the one or more reactors and configured to receive the ultraviolet light from the one or more light sources, and a pure oxygen source coupled to the one or more reactors and configured to supply pure oxygen to the water.

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Номер записи: 23

04-07-2013 дата публикации

Organic templated nanometal oxyhydroxide

Номер: US20130168320A1

Автор: Anshup, Chaudhary Amrita, Mohan Udhaya Sankar, Mundampra Maliyekkal Shihabudheen, THALAPPIL Pradeep

Принадлежит: INDIAN INSTITUTES OF TECHNOLOGY

Disclosed are granular composites comprising a biopolymer and one or more nanometal-oxyhydroxide/hydroxide/oxide particles, along with methods for the preparation and use thereof.

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Номер записи: 24

11-07-2013 дата публикации

Apparatus and method for treating aqueous solutions and contaminants therein

Номер: US20130175162A1

Автор: Douglas S. Winkie, Terence P. BARRY

Принадлежит: AquaMost Inc

The present disclosure is generally directed to devices and methods of treating aqueous solutions to help remove or otherwise reduce levels, concentrations or amounts of one or more contaminants. The present disclosure relates to an apparatus comprising spaced-apart electrode structural support members extending from a first sidewall to a second sidewall, the spaced-apart electrode structural support members each having at least one photoelectrode and counterelectrode coupled to respective terminals adapted to be electrically coupled to a power supply, and at least one ultraviolet light source between the spaced-apart electrode support members.

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Номер записи: 25

11-07-2013 дата публикации

Titanium dioxide-based hybrid ion-exchange media

Номер: US20130175220A1

Автор: Kiril D. Hristovski, Paul K. Westerhoff

Принадлежит: Arizona Board of Regents of ASU

A titanium dioxide-based hybrid ion-exchange media including anatase titanium dioxide nanoparticles supported by an ion-exchange resin for removing strong acid ions and oxo-anions from water. The titanium dioxide-based hybrid ion-exchange media is prepared in situ by combining ion-exchange media with a TiO 2+ precursor solution to form a mixture and heating the mixture to yield the hybrid ion-exchange media.

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Номер записи: 26

25-07-2013 дата публикации

Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent polymers for clay aggregation

Номер: US20130186838A1

Автор: Edwin T. Sortwell

Принадлежит: Sortwell and Co

The disclosure relates generally to the use of polymers to assist in aggregating mineral components in aqueous mineral slurries to release and separate individual components of the slurry, which may then be recovered from the slurry.

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Номер записи: 27

25-07-2013 дата публикации

Hydrocarbon Decomposition For Soil And Water Remediation

Номер: US20130187081A1

Автор: Pedro Murillo Gutierrez

Принадлежит: Individual

Presented herein are compositions including a linear tenso-active surfactant which, upon contact and mechanical stirring of a hydrocarbon body, induces emulsification, resulting in oxidation of fatty acid aliphatic bodies. The compositions solve the problem of hydrocarbon pollution. The hydrocarbon decomposer and its by-products dissolve hydrocarbons present in polluted bodies such as clays, soils, water and sand. Methods of the invention create a residue that is a fertilizer, at room temperature and with no need for high pressure.

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Номер записи: 28

08-08-2013 дата публикации

Methods of improving chitosan for water purification

Номер: US20130200008A1

Автор: James J. Kubinec, Marian Pettibone, San Hein, Sivarooban Theivendran

Принадлежит: Water Security Corp

Methods for preparing a chitosan-based material for use in a halogen water treatment system are described. Treating chitosan or chitin with a compound selected from the group consisting of an acid, a base, a mild halogenating solution and combinations thereof provides a chitosan-based material that displays reduced leakage of halide ion. Water treatment systems and methods for treating water comprising at least one contaminant are also described.

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Номер записи: 29

15-08-2013 дата публикации

Bioremediation method for accelerated biological decomposition of petroleum hydrocarbons in sea ice-covered polar regions, and bacteria and enzyme mixtures as agents for carrying out said method

Номер: US20130210112A1

Автор: Birte Gerdes, Elisabeth Helmke, Jutta Juergens, Kristine Reuter

Принадлежит: Alfred Wegener Insitut fuer Polar und Meeresforschung

A bacterial mixture usable in an inoculum usable in a bioremediateion method for accelerated biological degradation of petroleum hydrocarbons in a sea ice-covered polar region includes a plurality of isolated cold-adapted autochthonous bacterial strains. Each of the bacterial strains has petroleum hydrocarbons degrading activity at an ambient temperature of −3° C. and each has a different temperature tolerance range, a different salinity tolerance range, a different petroleum hydrocarbons degradation spectrum, and a different capacity to emulsify oil.

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Номер записи: 30

29-08-2013 дата публикации

Apparatus for the use of nanoparticles in removing chemicals from aqueous solutions with subsequent water purification

Номер: US20130220933A1

Автор: Dwayne C. Chong, Miguel Rivera, Shane L. Palmer, William A. Farone

Принадлежит: BLUFLOW TECHNOLOGIES Inc

An apparatus for removing target chemicals from water includes a reaction chamber, a source of an aqueous solution of the target chemicals that can be supplied on demand to the reaction chamber, a timer that times a reaction between the particles and the target chemicals such that a concentration of the target chemicals in the aqueous solution reaches a predetermined low level in a desired time, and elements for removing the aqueous phase from the reactor while keeping the particles entrained inside the reactor using a microfilter configured to be back flushed, adding aqueous solution to the reactor from the source and continuing cycles until the particles are saturated, removing and replacing the particles in a final cycle of a particle charge lifetime, and recovering the target chemicals from the particles such that the particles can be reused.

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Номер записи: 31

29-08-2013 дата публикации

Stabilized 3,3 dialkoxy-1-propene - preparation

Номер: US20130225869A1

Автор: Holger Blum

Принадлежит: Individual

Stabilized 3,3 dialkoxy-1-propene-preparation containing a compound of the formula I wherein R=C1-C6 hydrocarbon group and a compound of the formula II Z(—R 1 ) X (—OR 2 ) Y where Z=C (carbon) or Si (silicon); R1=H or C1-C3 carbon group; R2=C1-C3 carbon group; x=0 or 1, x+y=4.

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Номер записи: 32

12-09-2013 дата публикации

Filtration module

Номер: US20130233799A1

Автор: Avner Ronen, Carlos Dosoretz, Raphael Semiat

Принадлежит: Technion Research and Development Foundation Ltd

The present invention provides a filtration module having at least one membrane layer and a spacer layer, wherein the spacer includes: a polymeric matrix; and a biocide physically embedded into or attached to the polymeric matrix. Moreover, the invention provides a method for reducing the concentration of bacteria in water, by contacting water with the filtration module.

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Номер записи: 33

12-09-2013 дата публикации

Renewable resource-based metal oxide-containing materials and applications of the same

Номер: US20130233802A1

Автор: Tito Viswanathan

Принадлежит: University of Arkansas

Metal nanocomposites and methods of producing the same are disclosed. The nanocomposites have metal nanoparticles dispersed in a matrix carrier and can be produced by: treating a matrix material having a functional group with a quaternary amine compound to form a function site; treating the matrix material with a metal salt such that a metal ion of the metal salt is chelated with the functional site; treating the matrix material with an alkali; and microwaving the matrix material to form the metal nanocomposites.

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Номер записи: 34

17-10-2013 дата публикации

Selenium removal using chemical oxidation and biological reduction

Номер: US20130270181A1

Автор: David Brian Fraser, Dinh-Cuong Vuong, James Scott Kain, Jill Sonstegard, Timothy Michael Pickett, Yanguo Ma

Принадлежит: General Electric Co

Selenium in the form of a reduced species such as selenocyanate is oxidized to produce an oxidized selenium species such as selenate or selenite, and then a biological reduction process is used to remove selenium from the oxidized selenium species. In an example, a chemical oxidant is added to a wastewater containing selenocyanate to produce selenate and selenite. The partially treated wastewater is then fed to a reactor containing a fixed media supporting a biofilm with selenium reducing organisms. The selenium in the selenate and selenite is reduced to an insoluble form of selenium, such as elemental selenium, which precipitates from the wastewater.

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Номер записи: 35

31-10-2013 дата публикации

Magnetic-cored dendrimer, the method for preparing the same, and the contaminant treatment method using the same

Номер: US20130289292A1

Автор: Han-Uk Lee, Jae-Woo Park, Jun-Won JANG

Принадлежит: Industry University Cooperation Foundation IUCF HYU

Provided is a magnetic-cored dendrimer represented by the following Chemical Formula wherein R represents a functional group represented by the following Chemical Formula (2) or (3):

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Номер записи: 36

21-11-2013 дата публикации

Methods and apparatus for delivery system for water enhancements

Номер: US20130306152A1

Автор: Jon-Andrew V. Sigona

Принадлежит: Perfect Water Tech Inc

A delivery system for water enhancements according to various aspects of the present invention is configured to provide a controlled amount of a water enhancement to a water supply. In one embodiment, the delivery system comprises an enhancing device that operates under pressure to provide a controlled rate of diffusion of an enhancing element into the water supply to form an enhanced water supply for use or consumption. The delivery system may also be configured to buffer the enhanced water supply prior to use or consumption.

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Номер записи: 37

21-11-2013 дата публикации

Water purification system

Номер: US20130306529A1

Автор: Steve Flaim, Tom Flaim

Принадлежит: Individual

Purification of water is obtained by pumping water through a multi-stage filtration unit or a series of filters having increasingly smaller dimensional passages and then irradiating the water using UV light delivered at over 16,000 microwatts/cm 2 /sec. The system is advantageously portable for use in diverse environments and operable using a variety of power sources from solar to conventional fuels or electricity.

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Номер записи: 38

21-11-2013 дата публикации

Techniques for water treatment for high-efficiency cleaning

Номер: US20130306569A1

Автор: Allen Johnston

Принадлежит: Maxia Investments LLC

A water treatment device may comprise a photocatalytic oxidation (PCO) element, an oxide generation module, a flow switch, and a plurality of water-conveying elements. The oxide generation module may comprise a housing, an oxide generator, and a fan arranged such that, when the fan is powered on, a ducted flow of air passes along the oxide generator. The plurality of water-conveying elements may comprise a vacuum generation element. While the flow switch indicates that water is not flowing through the plurality of water-conveying elements, the PCO module and the oxide generator may be configured in an OFF state. While the flow switch indicates that water is flowing through the plurality of water-conveying elements, the following may be true: the fan may be configured in an ON state, the PCO module may generate ionized air, the oxide generator may add ozone to the ionized air, and a vacuum generated by the water flowing through the vacuum generation element may pull the ionized air containing ozone into the water.

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Номер записи: 39

02-01-2014 дата публикации

Metal nanoparticle deposited inorganic nanostructure hybrids, uses thereof and processes for their preparation

Номер: US20140005040A1

Автор: Mallikharjuna Rao KOMARNENI, Reshef Tenne, Uwe BURGHAUS, Yulia TSVERIN

Принадлежит: NORTH DAKOTA STATE UNIVERSITY RESEARCH FOUNDATION, Yeda Research and Development Co Ltd

This invention relates to a hybrid component comprising at least one nanoparticle of inorganic layered compound (in the form of fullerene-like structure or nanotube), and at least one metal nanoparticle, uses thereof as a catalyst, (e.g. photocatalysis) and processes for its preparation.

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Номер записи: 40

06-03-2014 дата публикации

Fluid treatment apparatus

Номер: US20140061027A1

Автор: Graham Tyrie, Neil Polwart, Steve Barfield

Принадлежит: Albagaia Ltd

A fluid treatment apparatus comprising: a reactor vessel defining a chamber and having an inlet and an outlet to allow fluid to flow through the chamber; a UV light source adapted to transmit light within the chamber; and a plurality of catalyst members comprising a catalytic outer surface, the catalyst members being freely contained within the chamber, wherein the apparatus is adapted to cause the catalyst members to move around within the chamber as fluid flows through the chamber.

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Номер записи: 41

10-04-2014 дата публикации

Compositions, Systems, and/or Methods Involving Chlorine Dioxide ("ClO2")

Номер: US20140100363A1

Автор: Ken Harrison, Nick Blandford

Принадлежит: Dharma IP LLC

Certain exemplary embodiments can provide a composition of matter comprising a solid form of chlorine dioxide complexed with a cyclodextrin. The concentration of chlorine dioxide in said solid form is greater than approximately 5.8 percent by weight. Certain exemplary embodiments can provide a method comprising forming a solid complex comprising chlorine dioxide and cyclodextrin, wherein a concentration of chlorine dioxide in the solid complex is greater than 5.8 percent by weight.

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Номер записи: 42

05-01-2017 дата публикации

Apparatus for treating a substance with wave energy from an electrical arc and a second source

Номер: US20170000145A1

Автор: Todd Foret

Принадлежит: Foret Plasma Labs LLC

A substance is treated using a device having: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is directed to the inlet of the volute or cyclone head and irradiated with one or more wave energies produced by the first and second wave energy sources as the substance passes through the device.

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Номер записи: 43

01-01-2015 дата публикации

UTILIZATION OF IRON SALTS TO STABILIZE AND/OR DISINFECT BIOSOLIDS

Номер: US20150000358A1

Автор: ENGLANDE, JR. Andrew J., MURRAY Norman K., REIMERS Robert S., XU YUE

Принадлежит: The Administrators of the Tulane Educational Fund

In order to render sewage sludge suitable for beneficial purposes, it must be disinfected and stabilized. EDC deactivation is rapidly becoming a desirable result of any sludge or biosolids treatment process. Disclosed herein is a process of treating sewage sludge so as to stabilize the sludge that involves the presence of an iron-containing compound during dewatering of the sludge. Process embodiments described also achieve biosolid samples that have reduced EDC activity, Other embodiments disclosed involve use of a combination of iron salts ferrate and ferric chloride that are added to wastewater sludge in the dewatering step before heat drying. The biosolids resulting from sludge treated with aniron-containing compound are able to resist putrefaction for more than two to three weeks. 1. A method for the treatment of sewage sludge containing solids , comprising:(a) dewatering the sewage sludge in the presence of an iron-containing compound to a produce biosolid cake, wherein said iron-containing compound is provided at about 1% to about 10% of the solid content of the sewage sludge;(b) and(c) heat-drying the biosolid cake to produce a stabilized biosolid sample.2. The method of claim 1 , wherein the amount of iron containing compound is about 1% to about 5% of the solid content of the sewage sludge.3. The method of claim 2 , wherein the amount of iron-containing compound is about 1.8% to about 2.3% of the total solids content of the sewage sludge.4. The method of claim 1 , wherein the iron-containing compound is an iron salt or ferrate.5. The method of claim 4 , wherein the iron salt is ferric chloride or ferric sulfate.6. The method of claim 1 , wherein the sewage sludge is at a pH such that the iron salt produces ferric hydroxide.7. The method of claim 1 , wherein the stabilized biosolid sample comprises reduced EDC activity.8. The method of claim 8 , wherein the biosolid cake is thickened to about 75% to about 85% moisture content.9. The method of claim 1 , ...

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Номер записи: 44

01-01-2015 дата публикации

Submerged arc removal of contaminants from liquids

Номер: US20150001164A1

Автор: Adi VEGERHOF, Boris A. ALTERKOP, Nahum Parkansky, Olga BERKH, Reuven Lev Boxman, Simon Evelina FAKTOROVICH

Принадлежит: Ramot at Tel Aviv University Ltd

To remove a contaminant from a liquid, a pulsed electrical arc discharge is effected between two electrodes immersed in the liquid, thereby creating a plurality of particles within the liquid. One or both of the electrodes is metallic, for example iron or titanium. Before the pulsed electrical arc discharge is terminated, another step that promotes destruction of the contaminant by particles, such as removing the particles from the liquid or adding an oxidizer to the liquid, is performed. In the case of the extra step being adding an oxidizer to the liquid, preferably the termination of the pulsed electrical arc discharge is followed by allowing the liquid and the particles therein to age.

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Номер записи: 45

02-01-2020 дата публикации

PHOTO SENSITIVE VARIABLE HYDROPHILIC MEMBRANE AND METHOD FOR MANUFACTURING THE SAME

Номер: US20200001243A1

Автор: HAN Gwondeok, KIM BEOMJOON, PARK Heedeung, PARK Kanghee, SHIM Joonhyung

Принадлежит: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

A photo sensitive variable hydrophilic membrane includes a membrane substrate, and a photocatalyst layer deposited on the membrane substrate and including an oxide, wherein a hydrophilic property of the photocatalyst layer is increased when a light is irradiated and a method of the same are provided. 1. A photo sensitive variable hydrophilic membrane , the membrane comprising:a membrane substrate; anda photocatalyst layer deposited on the membrane substrate and including an oxide,wherein a hydrophilic property of the photocatalyst layer is increased when a light is irradiated.2. The membrane of claim 1 , wherein the photocatalyst layer has a hydrophobic property when the light is blocked and has the hydrophilic property when the light is irradiated.3. The membrane of claim 1 , wherein the membrane has a first flux when the light is blocked claim 1 , andwherein the membrane has a second flux larger than the first flux when the light is irradiated.4. The membrane of claim 1 , wherein the photocatalyst layer includes any one of zinc oxide claim 1 , titanium oxide claim 1 , iron oxide claim 1 , vanadium oxide claim 1 , tungsten oxide claim 1 , and cerium oxide claim 1 , or a combination thereof.5. The membrane of claim 1 , wherein the photocatalyst layer is deposited on the membrane substrate by an atomic layer deposition (ALD).6. The membrane of claim 2 , wherein the photocatalyst layer has the hydrophobic property again when the light is blocked after the light is irradiated.7. The membrane of claim 2 , wherein the photocatalyst layer has the hydrophobic property when light in a wavelength band of 315 nm to 400 nm is blocked claim 2 , andwherein the photocatalyst layer has the hydrophilic property when light in the wavelength band of 315 nm to 400 nm is irradiated.8. A photo sensitive variable hydrophilic membrane claim 2 , the membrane comprising:a membrane substrate; anda photocatalyst layer deposited on the membrane substrate and including an oxide,wherein the ...

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Номер записи: 46

05-01-2017 дата публикации

ZINC-BASED NANOHYBRIDS, DEVICES AND METHODS THEREOF

Номер: US20170001186A1

Автор: AHMED Saleh Abdel-Mgeed, SEDDIGI Zaki Shakir

Принадлежит: UMM AL-QURA UNIVERSITY

A zinc-based nanohybrid was prepared using a facile wet chemistry process. This nanohybrid has zinc oxide nanostructures connected to zinc phthalocyanine molecules via biologically important ligands. In addition, this nanohybrid has photocatalytic properties and photodegrades water pollutants, such as methyl orange. 1: A zinc-based nanohybrid , comprising:a zinc oxide nanostructure;a zinc phthalocyanine molecule; anda bridging ligand connecting the zinc oxide nanostructure and the zinc phthalocyanine molecule.2: The zinc-based nanohybrid of claim 1 , wherein the zinc oxide nanostructure has at least one morphology selected from the group consisting of a nanoparticle claim 1 , and a nontubular nanorod.3: The zinc oxide nanostructure of claim 2 , wherein the zinc oxide nanostructure is a nontubular nanorod with an average largest diameter of 50-100 nm and a length of 0.3-5 μm.4: The zinc oxide nanostructure of claim 2 , wherein the zinc oxide nanostructure is a nanoparticle with an average diameter of 10-50 nm.6: The zinc-based nanohybrid of claim 1 , wherein the zinc phthalocyanine molecule is of Formula (I) claim 1 , wherein R-Rare each hydrogen.7: The zinc-based nanohybrid of claim 1 , wherein the bridging ligand has two terminal carboxylate groups claim 1 , and through the two carboxylate end groups claim 1 , the bridging ligand forms a first Zn—O linkage with zinc in the zinc oxide nanostructure and a second Zn—O linkage with zinc in the zinc phthalocyanine molecule.9: The zinc-based nanohybrid of claim 1 , wherein the bridging ligand is selected from the group consisting of citrate claim 1 , tartrate claim 1 , an amino acid claim 1 , which is serine claim 1 , cysteine claim 1 , aspartate claim 1 , glutamate or tyrosine claim 1 , and enantiomers thereof.10: A substrate comprising:at least one plate; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the zinc-based nanohybrid of , wherein the zinc-based nanohybrid is coated on a surface of the plate to form a ...

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Номер записи: 47

02-01-2020 дата публикации

Environmental Bioremediation Substrate from Animal By-Products and Use and Formation Thereof

Номер: US20200001337A1

Автор: Kevin FINNERAN

Принадлежит: Clemson University

Disclosed are bioremediation substrates that include animal-based proteins and animal-based lipids that can function as electron donors in microbial respiration. The bioremediation substrates have been developed from animal by-products, such as rendered animal co-products. The bioremediation substrates can be utilized in restoration of subsurface environments, such as soil, sediment, and water, that have been impacted by one or more environmental contaminants, such as chlorinated solvents and metals such as chromium.

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Номер записи: 48

03-01-2019 дата публикации

Method for the production of new nanomaterials

Номер: US20190001308A1

Автор: Nancy Linder, Nicolas PASTERNAK

Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA, Universite de Cergy-Pontoise

A method for producing new nanomaterials, 80 to 100 mol % of which are composed of TiO2 and 0 to 20 mol % are composed of another metal or semi-metal oxide that has a specific surface of 100 to 300 m2.g−1and 1 to 3 hydroxyl groups per nm2.

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Номер записи: 49

07-01-2021 дата публикации

WATER TREATMENT SYSTEM

Номер: US20210002150A1

Автор: KUBO Kie, Makise Ryutaro, MURAYAMA Seiichi, Nakajima Kanako, SHIMURA Naohiko

Принадлежит: KABUSHIKI KAISHA TOSHIBA

A water treatment system includes: a water treatment device; a feed-water pump that feeds water to be treated to the water treatment device; an ozone generator that generates ozone-containing gas containing ozone gas and oxygen gas; and a direct-current power supply that supplies direct-current power. The water treatment device includes: an ejector including an inlet-side wider-diameter part into which the water is introduced, a nozzle in communication with the inlet-side wider-diameter part and including a sidewall including an inlet opening into which the ozone-containing gas is introduced, and an outlet-side wider-diameter part in communication with the nozzle, from which the water mixed with the ozone-containing gas is ejected; and an electrolyzer located downstream of the ejector and including an electrolysis-purpose electrode supplied with the direct-current power to electrolyze the ejected water mixed with the ozone-containing gas. 1. A water treatment system comprising:a water treatment device;a feed-water pump that feeds water to be treated to the water treatment device;an ozone generator that generates ozone-containing gas containing ozone gas and oxygen gas; anda direct-current power supply that supplies direct-current power, wherein the water treatment device comprises: an inlet-side wider-diameter part into which the water is introduced,', 'a nozzle in communication with the inlet-side wider-diameter part and having a sidewall provided with an inlet opening into which the ozone-containing gas is introduced, and', 'an outlet-side wider-diameter part in communication with the nozzle, from which the water mixed with the ozone-containing gas is ejected; and, 'an ejector including'}an electrolyzer located downstream of the ejector and including an electrolysis-purpose electrode supplied with the direct-current power to electrolyze the ejected water mixed with the ozone-containing gas.2. The water treatment system according to claim 1 , comprisinga plurality ...

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Номер записи: 50

07-01-2021 дата публикации

METHODS FOR ERADICATING BIOFILMS FROM PLUMBING SYSTEMS

Номер: US20210002152A1

Автор: GORDON Gilbert, Rosenblatt Aaron

Принадлежит: GORDON & ROSENBLATT, LLC

Disclosed are advantageous systems and methods for treating building water systems, especially the interior surfaces of premise plumbing, to remove biofilm and inactivate biofilm-associated pathogens, including protozoa, using disinfectant formulations at concentrations at in excess of those used for drinking water treatment, and further, in co-applying complexing agents to mitigate corrosion of the materials treated; and using these in conjunction with off-gas containment devices that allow flushing of taps without the liberation of toxic fumes. 123-. (canceled)24. A method for containing gases during acute chemical treatment of plumbing systems , the method comprising:(a) attaching a conduit to a water source comprising water which comprises chlorine dioxide such that the opposing end of the conduit is proximal to or extends into a drain, and(b) passing said water which comprises chlorine dioxide down the drain.25. The method of claim 24 , wherein the conduit is partially impermeable to chlorine and chlorine dioxide gas.26. The method of claim 25 , wherein the conduit is impermeable to chlorine and chlorine dioxide gas.27. The method of claim 24 , wherein at least a portion of the conduit is flexible.28. The method of claim 24 , wherein the conduit contains an apparatus designed to prevent backflow.29. The method of claim 24 , wherein the apparatus is a check valve.30. The method of claim 24 , wherein the conduit is fitted into a drain claim 24 , at the end of the conduit that is not attached to the water source.31. The method of claim 24 , wherein the conduit is attached to the tapered end of a funnel claim 24 , at the end of the conduit that is not attached to the water source.32. The method of claim 31 , wherein contact between the conduit and the funnel is sealed.33. The method of claim 31 , wherein the conduit attached to the tapered end of a funnel has a length that creates a gap between the conduit and the wide end of the funnel.34. The method of wherein ...

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Номер записи: 51

02-01-2020 дата публикации

Method and apparatus for electrochemical purification of wastewater

Номер: US20200002195A1

Автор: Colleen Legzdins, Edward D. RICCI

Принадлежит: Oxbyel Technologies Inc

The invention of the current application is directed to a wastewater treatment apparatus. The invention includes a divided membrane electrochemical cell including an anode contained within a anode compartment and cathode contained within a cathode compartment. The anode compartment and said cathode compartment are separated by a proton selective membrane. The invention also includes a voltage source, and a liquid-gas separator. The invention is an economically viable electrochemical advanced oxidation system that can cost-effectively treat recalcitrant COD with low energy, without the necessity for chemicals, and reduce or prevent sludge production in a single step.

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Номер записи: 52

04-01-2018 дата публикации

Device for Improving the Chemical and Physical Properties of Water and Methods of Using Same

Номер: US20180002204A1

Автор: John Beck, William Lizalde

Принадлежит: Wellspring Water Technologies LLC

A water treatment device for altering the chemical and physical properties of water for use in existing plumbing and/or piping systems wherein the treatment device may be customized for intended use and for treatment of the water profile in the geographical area of installation.

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Номер записи: 53

03-01-2019 дата публикации

WATER TREATMENT SYSTEM AND METHODS THEREOF

Номер: US20190002317A1

Автор: ABDEL-WAHAB Mohamed Shaaban, AL-GHAMDI Attieh Ali, MEMIC Adnan, SALAH Numan Abdullah

Принадлежит: KING ABDULAZIZ UNIVERSITY

A water treatment system with a photocatalytic nanocomposite sheet, an adsorbent layer, and a fibrous filter, wherein the photocatalytic nanocomposite sheet comprises polymethylmethacrylate and silver phosphate, the adsorbent layer comprises plasma activated carbon nanotubes, and the fibrous filter is a composite of polymethylmethacrylate, polyvinylidene fluoride, and polyvinylpyrrolidone polymer fibers, with carbon nanotubes that are dispersed within the polymer fibers and silver nanoparticles that are deposited on the polymer fibers. Various embodiments of the water treatment system and methods of fabricating the photocatalytic nanocomposite sheet, the adsorbent layer, and the fibrous filter are also provided. 1: A water treatment system , comprising:a pipe comprising a water inlet, a water outlet, and a transparent section located between the water inlet and the water outlet; anda photocatalytic nanocomposite sheet comprising polymethylmethacrylate and silver phosphate located inside the transparent section, wherein the photocatalytic nanocomposite sheet is configured to decompose at least a portion of organic pollutants present in water.2: The water treatment system of claim 1 , wherein the transparent section is coil shaped.3: The water treatment system of claim 1 , wherein the photocatalytic nanocomposite sheet has a thickness in the range of 0.5 to 2 mm.4: The water treatment system of claim 1 , further comprising:at least one mirror configured to reflect sunlight to the transparent section.5: The water treatment system of claim 1 , further comprising:a filter housing with an inlet and an outlet; anda fibrous filter located inside the filter housing and between the inlet and the outlet,wherein the inlet is fluidly connected to the water outlet.6: The filtration system of claim 5 , wherein the fibrous filter comprises polymer fibers comprising polymethylmethacrylate claim 5 , polyvinylidene fluoride claim 5 , and polyvinylpyrrolidone claim 5 , and silver ...

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Номер записи: 54

03-01-2019 дата публикации

Process and apparatus for dosing nutrients to a bioreactor

Номер: US20190002318A1

Автор: Eric C. Tompkins, Killol H. Thakkar, Robert W. Brafford

Принадлежит: UOP LLC

The present invention relates to a control system for a bioreactor. More particularly, this invention relates to a process and apparatus for reading the characteristics of an industrial waste water stream and dosing amount of nutrients that play a key role to help the microorganisms in the bioreactor work efficiently to remove impurities from the industrial wastewater stream.

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Номер записи: 55

02-01-2020 дата публикации

HIERARCHICAL MAGNETIC NANOPARTICLE-ENZYME MESOPOROUS ASSEMBLIES EMBEDDED IN MACROPOROUS SCAFFOLDS

Номер: US20200002698A1

Автор: ANESHANSLEY Daniel, CORGIE Stephane C., Duan Xiaonan, Giannelis Emmanuel, WALKER Larry P.

Принадлежит: CORNELL UNIVERSITY

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion. 122.-. (canceled)23. A method for epoxidation reactions of alkenes , the method comprising reacting alkenes in the presence of oxygen with a hierarchical catalyst composition comprising a continuous macroporous scaffold in which is incorporated self-assembled mesoporous aggregates of magnetic nanoparticles containing an oxygen-transfer enzyme embedded in mesopores of said mesoporous aggregates of magnetic nanoparticles , to produce an alkene oxide.24. The method of claim 23 , wherein said oxygen-transfer enzyme is a chloroperoxidase or a lipase.2539.-. (canceled)40. The method of claim 23 , further comprising magnetic particles claim 23 , not belonging to said mesoporous aggregates of magnetic nanoparticles claim 23 , embedded in said continuous macroporous scaffold.41. The method of claim 23 , wherein said continuous macroporous scaffold has a polymeric composition.42 ...

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Номер записи: 56

01-01-2015 дата публикации

METHOD AND APPARATUS FOR DISINFECTING SEWAGE SLUDGE

Номер: US20150004256A1

Автор: Pyy Reima

Принадлежит:

A method and an apparatus for disinfecting sewage sludge are disclosed, in which sewage sludge is loaded from a silo into an open container, the open container is transferred away from the loading site, a granular calcium oxide (CaO) is dispensed into the sludge, a diluted peracetic acid solution is dispensed into the sludge and the sludge is mixed in the open container by at least four horizontal mixing screws for about two hours. 1. A method for disinfecting sewage sludge , which comprises:loading sewage sludge from a silo into an open container;transferring the open container from the loading site;dispensing a granular calcium oxide (CaO) into the sludge;dispensing a diluted solution of peracetic acid into the sludge and mixing the sludge in the open container by means of at least four horizontal mixing screws for about two hours.2. The method of claim 1 , further comprising determining the degree of disinfection the sludge by measuring for a temperature and pH during the dispensing.3. The method of claim 1 , further comprising loading the treated sludge onto a vehicle intended for sludge transport.4. An apparatus to disinfect sewage sludge claim 1 , which comprises:an open container, in the interior of which container at least four mixing screws are arranged;a ready-to-use solution container; andan acid spray system connected to the ready-to-use solution container for feeding a peracetic acid solution from the ready-to-use solution container into the sludge in the open container.5. The apparatus of claim 4 , wherein the mixing screws comprise two lower mixing screws and two upper mixing screws.6. The apparatus of claim 5 , wherein the mixing screws are horizontal and mutually parallel screws.7. The apparatus of claim 4 , wherein the open container is a trailer with open top.8. The apparatus of claim 4 , wherein the capacity of the open container is about 20 mand the capacity of the ready-to-use solution container is about 200 litres.9. The apparatus of claim 7 , ...

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Номер записи: 57

01-01-2015 дата публикации

WASTEWATER TREATMENT METHOD

Номер: US20150005379A1

Автор: Block Philip, Tran Minh

Принадлежит:

The present invention relates to a method for treating wastewater comprising adding a peracid to such wastewater after such wastewater has undergone a filtration step, characterized in that said peracid is added to said wastewater at a first peracid addition point; as well as at one or more subsequent peracid addition point(s) placed at sequential location(s) in a contact chamber. It has been unexpectedly found that such sequential addition is more effective than adding such peracid at a single location. 1. A method for treating wastewater comprising adding a peracid to such wastewater after such wastewater has undergone a filtration step , characterized in that said peracid is added to said wastewater at (a) a first peracid addition point; and (b) at one or more additional peracid addition point or points located at a sequential location or locations in a contact chamber.2. The method of wherein such wastewater treatment is for surface discharge claim 1 , reuse or combined sewer overflow use.3. The method of wherein the peracid is peracetic acid.4. The method of wherein the peracetic acid is added at a total rate of between 0.5 ppm and 50 ppm by weight of wastewater.5. The method of wherein the peracetic acid is added at a total rate of between 1 ppm and 30 ppm by weight of wastewater.6. The method of wherein the peracid is added at a first peracid addition point and a second peracid addition point.7. The method of wherein the peracid is peracetic acid.8. The method of wherein the peracetic acid is added at a total rate of between 0.5 ppm and 50 ppm by weight of wastewater.9. The method of wherein the peracetic acid is added at a total rate of between 1 ppm and 30 ppm by weight of wastewater.10. The method of wherein the weight ratio of peracetic acid added at the first peracid addition point to peracetic acid added at the additional peracid addition point is between 2:1 and 1:4.11. The method of wherein the weight ratio of peracetic acid added at the first peracid ...

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Номер записи: 58

14-01-2016 дата публикации

Photocatalytic element for purification and disinfection of air and water and method for the production thereof

Номер: US20160008804A1

Автор: Evgeny Nikolaevich Kabachnikov, Evgeny Nikolaevich Kurkin, Igor Anatolevich Domashnev, Igor Lvovich Balikhin, Victor Ivanovich Berestenko, Vladimir Nikolaevich Troitsky

Принадлежит: IPKHF RAN, NTSCHRAN, Ooo "krasnoe Pole", OOO "TIOKRAFT"

The invention relates to the purification and disinfection of air and water. A photocatalytic element consists of sintered glass beads with a pore volume fraction from 20% to 40% and a pore size from 0.1 to 0.5 mm, the surface of which is coated with a titanium dioxide powder, having a specific surface area of 150-400 m 2 /g, at the rate of 0.5-2% relative to the total mass of the photocatalytic element. The surface of the glass beads has a relief shape with a relief depression of 0.5-10 pm. The method for producing the photocatalytic element comprises sintering the glass beads at a temperature that is 5-20° C. higher than the glass softening temperature, modifying the bead surface with chemical etching agents, and coating the bead surface with the titanium dioxide powder from a water suspension at a pH of 2.9±0.1.

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Номер записи: 59

12-01-2017 дата публикации

Biosludge Reduction Method

Номер: US20170008787A1

Автор: Chang-Ching Lin

Принадлежит: Individual

A biosludge reduction method includes: fracturing a biosludge under oscillation of an aqueous solution to split zoogleal bacteria flocs contained in the biosludge so as to form a mixture containing the fractured biosludge and the aqueous solution; introducing an oxidizing agent gas into the mixture to bring the fractured biosludge in contact with the oxidizing agent gas; and reacting the mixture with the oxidizing agent gas so as to conduct lysis of the zoogleal bacteria.

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Номер записи: 60

11-01-2018 дата публикации

SYSTEMS AND METHODS FOR PERFORMING THE BACTERIAL DISINFECTION OF A FLUID USING POINT RADIATION SOURCES

Номер: US20180008741A9

Автор: PAGAN Jennifer Godwin, Schmedake Thomas Andrew, Stokes Edward Brittain

Принадлежит:

A system for disinfecting a fluid, including: a flow cell including one or more inlet ports and one or more outlet ports, wherein the flow cell is configured to communicate a fluid containing a biological contaminant from the one or more inlet ports to the one or more outlet portions through an interior portion thereof; and one or more point radiation sources disposed about the flow cell, wherein the one or more point radiation sources are operable for delivering radiation to the biological contaminant; wherein an interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources; and wherein the interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources such that a radiation intensity is uniform throughout the interior portion of the flow cell. In one exemplary embodiment, the flow cell is an integrating sphere. Optionally, the system also includes a photocatalyzing material disposed on at least a portion of the interior surface of the flow cell. 1. A system for disinfecting a fluid , comprising:a flow cell comprising one or more inlet ports and one or more outlet ports, wherein the flow cell is configured to communicate a fluid from the one or more inlet ports to the one or more outlet portions through an interior portion thereof; andone or more point radiation sources disposed about the flow cell, wherein the one or more point radiation sources are operable for delivering radiation to the fluid;wherein an interior surface of the flow cell is operable for reflecting the radiation delivered to the fluid by the one or more point radiation sources.2. The system of claim 1 , wherein the flow cell comprises one or more of an integrating cavity claim 1 , an integrating ellipsoid claim 1 , and an integrating sphere.3. The system of claim 1 , wherein the one or more point radiation ...

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Номер записи: 61

27-01-2022 дата публикации

Photodynamic method to decontaminate surfaces

Номер: US20220023454A1

Автор: Hamada Aboubakr, Sagar GOYAL

Принадлежит: Individual

A method to decontaminant surfaces including the surface of food and aqueous solutions is provided.

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Номер записи: 62

11-01-2018 дата публикации

HYBRID NANOSTRUCTURED PHOTOCATALYSTS AND PREPARATION METHOD THEREOF

Номер: US20180008967A1

Автор: KIM Woosik, SHAHZAD Aasim, YI Minyoung, Yu Taekyung

Принадлежит:

The present invention relates to a hybrid nanostructured photocatalyst, comprising a first nanoparticle comprising silver halide (AgX); a second nanoparticle, which is formed on an outer surface of the first nanoparticle and comprises Ag; and a polymer formed on any one outer surface of the first nanoparticle and the second nanoparticle, and a preparation method thereof. Specifically, the present invention provides a hybrid nanostructured photocatalyst having a high photocatalytic activity in a visible light region and a preparation method thereof. 1. A hybrid nanostructured photocatalyst , comprising:a first nanoparticle comprising silver halide (AgX), wherein X is any of Cl, Br, and I;multiple second nanoparticles in a dendritic form on an outer surface of the first nanoparticle and comprising Ag; anda polymer formed on any one outer surface of the first nanoparticle and the multiple second nanoparticles.2. The hybrid nanostructured photocatalyst of claim 1 , wherein the first nanoparticle has at least one shape selected from the group consisting of a semi-sphere claim 1 , a sphere claim 1 , a truncated-cube claim 1 , and a cube.3. The hybrid nanostructured photocatalyst of claim 1 , wherein the second nanoparticle is formed on the outer surface of the first nanoparticle claim 1 , and the shape of the hybrid nanostructured photocatalyst is formed to correspond to the shape of the first nanoparticle.4. The hybrid nanostructured photocatalyst of claim 1 , wherein at least a part of the first nanoparticle and the second nanoparticle has a crystal structure.5. The hybrid nanostructured photocatalyst of claim 1 , wherein at least a part of the first nanoparticle and the second nanoparticle has a face-centered cubic structure.6. The hybrid nanostructured photocatalyst of claim 1 , wherein the photocatalyst has a band gap energy of 2.0 eV to 3.0 eV and a photocatalytic activity in a visible light region.7. (canceled)8. The hybrid nanostructured photocatalyst of claim 1 , ...

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Номер записи: 63

12-01-2017 дата публикации

Method for Making a Biosludge-Based Biomass Fuel

Номер: US20170009164A1

Автор: LIN CHANG-CHING

Принадлежит:

A method for making a biosludge-based biomass fuel includes: introducing an oxidizing agent gas and an aqueous solution into a biosludge to undergo lysis of bacteria contained in a biosludge under oscillation of the oxidizing agent gas and the aqueous solution so as to form a pre-treated biosludge mixture; filtering out the oxidized biosludge from the pre-treated biosludge mixture under pressurized treatment to form biosludge solids; drying the biosludge solids; grinding the dried biosludge solids to form particulate biosludge solids; and mixing the particulate biosludge solids with an oil sludge. 1. A method for making a biosludge-based biomass fuel , comprising:introducing an oxidizing agent gas and an aqueous solution into a biosludge to undergo lysis of bacteria contained in the biosludge under oscillation of the oxidizing agent gas and the aqueous solution so as to form a pre-treated biosludge mixture;filtering out the oxidized biosludge from the pre-treated biosludge mixture under pressurized treatment to form biosludge solids;drying the biosludge solids;grinding the dried biosludge solids to form particulate biosludge solids; andmixing the particulate biosludge solids with an oil sludge.2. The method for making a biosludge-based biomass fuel of claim 1 , wherein the oxidizing agent gas is ozone and the aqueous solution is water.3. The method for making a biosludge-based biomass fuel of claim 2 , wherein the ozone is introduced in an amount of 0.06 to 0.13 grams per 1 gram of dry weight of the biosludge.4. The method for making a biosludge-based biomass fuel of claim 1 , wherein the biosludge solids obtained from filtering of the pre-treated biosludge mixture has a water content ranging from 55% to 65%.5. The method for making a biosludge-based biomass fuel of claim 1 , wherein the dried biosludge solids have a water content less than 8%.6. The method for making a biosludge-based biomass fuel of claim 1 , wherein drying of the biosludge solids is conducted at ...

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Номер записи: 64

10-01-2019 дата публикации

Conductive thin-films for direct membrane surface electroheating

Номер: US20190009217A1

Автор: Alexander V. DUDCHENKO, David Jassby

Принадлежит: UNIVERSITY OF CALIFORNIA

A method is disclosed for preventing carbon nanotube degradation in ionizable environments. The method includes immersing a porous thin-film nanotube (CNT)/polymer composite Joule heating element in an ionizable environment; and applying an alternating current at a frequency of at least 100 Hz to the porous thin-film nanotube (CNT)/polymer composite Joule heating element in the ionizable environment.

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Номер записи: 65

10-01-2019 дата публикации

SILICON-TITANIUM DIOXIDE-POLYPYRROLE THREE-DIMENSIONAL BIONIC COMPOSITE MATERIAL BASED ON HIERARCHICAL ASSEMBLY AND USE THEREOF

Номер: US20190009261A1

Автор: Chi Lifeng, HE Fei, LI Ying, Lv Nan, NI Caihua, Shi Gang, Wang Dawei

Принадлежит:

The invention relates to a three-dimensional bionic composite material based on refection elimination and double-layer P/N heterojunctions. The preparation method of the composite material comprises: (1) anisotropically etching a silicon wafer with an alkaline solution, to form compactly arranged tetragonal pyramids on the surface of the silicon wafer; (2) performing hydrophilic treatment on the silicon wafer, growing TiO2 crystal seeds on the surface of the silicon wafer, and calcining the silicon wafer in a muffle furnace; (3) putting the silicon wafer obtained in the step (2) into a reaction kettle, and growing TiO2 nano-rods on the side walls of silicon cones by a hydrothermal synthesis method; and (4) depositing PPY nano-particles on the TiO2 nano-rods. The composite material has good refection elimination performance and efficient photogenerated charge separation capability, and is applicable in fields of photo-catalysis, photoelectric conversion devices, solar cells and the like. 1. A silicon-titanium dioxide-polypyrrole three-dimensional bionic composite material based on hierarchical assembly , comprising an ordered hierarchy (Si/TiO/PPY) of monocrystalline silicon (Si) , titanium dioxide (TiO) and polypyrrole (PPY) ,wherein Si is 100-type monocrystalline silicon with a tapered microstructure surface and is a P-type semiconductor, and has compactly arranged silicon cone structure of tetragonal pyramids with a height of 4-10 μm;{'sub': 2', '2, 'TiOis TiOnano-rods of rutile phase and is an N-type semiconductor, and is quadrangular with a height of 500-4000 nm and a diameter of 40-250 nm, and orderly and vertically grown on the side walls of the silicon cones;'}{'sub': '2', 'PPY is polypyrrole nano-particles with a diameter of 10-60 nm and is a P-type semiconductor, and is uniformly grown on the surfaces of the TiOnano-rods;'}{'sub': 2', '2', '2, 'in the Si/TiO/PPY three-dimensional bionic composite material, double P/N heterojunctions are formed on interfaces ...

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Номер записи: 66

11-01-2018 дата публикации

METHOD AND SYSTEM FOR TREATING WASTEWATER

Номер: US20180009688A1

Автор: Bogdan Jerel, Ertel Daniel, McManus Kent, Rushing Jason

Принадлежит: Eureka Resources LLC

Methods and systems are provided herein for treating wastewater, such as wastewater from oil and natural gas production. Distilled water may be treated with bacteria and other micro-organisms to remove nitrogen compounds from the distilled water. The distilled water may be produced from pretreating and distilling wastewater. The treatment steps of the distilled water include subjecting the water to microbial action under both anoxic and aerobic conditions and employing a membrane bioreactor to further purify the water. The purified water is still further purified by either reverse osmosis or ion exchange systems. 1. A method of preparing de-wasted water from oil and/or natural gas production wastewater , the method comprising:distilling oil and/or natural gas production wastewater to produce a distilled water comprising contaminants, the contaminants comprising nitrogen compounds; adjusting the temperature of the distilled water to between 20° C. to 35° C.;', 'denitrifying a portion of the nitrogen compounds in the distilled water under anoxic conditions;', 'nitrifying additional nitrogen compounds in the distilled water under aerobic conditions; and', 'introducing the distilled water to a membrane bioreactor comprising a membrane to remove a portion of the contaminants from the distilled water to arrive at a purified water from the membrane bioreactor; and, 'purifying the distilled water to produce a purified water therefrom, said purifying comprisingintroducing the purified water to a reverse osmosis system to convert the purified water into a de-wasted water that meets or exceeds each de-wasted water criterion of General Permit WMGR123 (Pennsylvania Department of Environmental Protection, 2012).2. The method of claim 1 , further comprising pretreating the wastewater prior to the distilling claim 1 , the pretreating comprising one or more of: adjusting a pH of the wastewater claim 1 , adding one or more chemicals to the wastewater claim 1 , clarifying the ...

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Номер записи: 67

14-01-2021 дата публикации

RECIRCULATING, PURIFYING, DISINFECTING, COOLING, DECONTAMINATING, FEEDBACK CONTROLLED WATER SYSTEM FOR DRINKING WATER AND OTHER USES TO IMPROVE HEALTH AND WELL BEING OF ANIMALS AND HUMANS

Номер: US20210009453A1

Автор: Boyle Stephen, Mohamed Ahmed Abbas

Принадлежит: Curozone Ireland Limited

A water purification system provides clean water for the consumption by livestock by using a continuously recirculating water loop. A circulating pump moves the water within the water loop in a flow direction. A particle filter system is fluidically connected in series and removes dissolved solids or particulates within the water. An ozone purification system and/or with the addition of other antimicrobial or purification agents is fluidically connected in parallel to a portion of the continuously recirculating feedback monitored and control water loop. The ozone purification system is disposed downstream of the particle filter system in relation to the flow direction. A feeding station is connected in series with the continuously recirculating water loop disposed downstream of the ozone purification system in relation to the flow direction. An alkaline water apparatus is disposed upstream of the ozone purification unit, connected either before or in parallel to the ozone purification system. 1. A water purification system configured to provide clean water for consumption by livestock or other animals , the water purification system comprising:a continuously recirculating water loop;a circulating pump fluidically connected in series with the continuously recirculating water loop configured to pump water within the continuously recirculating water loop in a flow direction;a water supply inlet fluidically connected to the continuously recirculating water loop at a first check valve, the water supply inlet configured to provide additional water due to the water consumption in the water purification system;at least one particle filter system fluidically connected as part of and in series with the continuously recirculating water loop, the at least one particle filter system configured to remove dissolved solids or particulates within the water, the particle filter system disposed downstream of the first check valve in relation to the flow direction;an ozone purification ...

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Номер записи: 68

09-01-2020 дата публикации

Liquid treatment apparatus

Номер: US20200010340A1

Автор: Gaku Miyake, Genichiro Matsuda, Takahiro Kitai, Yoshio Yamada

Принадлежит: Panasonic Intellectual Property Management Co Ltd

There is provided a liquid treatment apparatus which includes a treatment tank which generates a gas phase in a swirling flow of liquid, by swirling an introduced liquid and which treats liquid by applying a pulse voltage to a generated gas phase to generate plasma, in which an insulator which is an insulating space forming member is disposed on a wall surface of one end of the treatment tank so as to prevent a swirling flow from being affected, faces the space connected via the through-hole of the insulator, and thus the first electrode is disposed.

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Номер записи: 69

11-01-2018 дата публикации

Optical density monitor and comparator systems and methods

Номер: US20180011020A9

Автор: Edward Brittain Stokes, Jennifer Godwin Pagan, Paolo BATONI

Принадлежит: Aguisense Technologies LLC, UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE

The present disclosure relates generally to systems and methods for determining the absorption coefficient and the optical density of a fluid as they relate to the wavelength of incident radiation. Specifically, ultraviolet light-emitting diodes (UV LEDs) or the like that emit ultraviolet (UV) radiation or the like are used as sources for irradiating the interior of an integrating chamber that is designed to increase the path length of the radiation through the fluid, thus enhancing the detection limits of the absorption coefficient and the optical density according to Beer's Law.

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Номер записи: 70

15-01-2015 дата публикации

REMOVAL OF HEAVY METALS FROM AQUEOUS SOLUTIONS USING METAL-DOPED TITANIUM DIOXIDE NANOPARTICLES

Номер: US20150014253A1

Автор: "FAQIR NAIM MOHD ABDALLAH", AL-HARTHI MAMDOUH AHMED, MIRGHANI MOUSAB SALAH ALDEEN, SHAMMAKH MOHAMMAD BA, SHAWABKEH REYAD AWWAD KHALAF

Принадлежит:

The removal of heavy metals from aqueous solutions using metal-doped titanium dioxide nanoparticles is a method that comprises contacting the aqueous solution with metal-doped titanium dioxide nanoparticles. The three transition metals tungsten, vanadium and iron were selected for doping of titanium dioxide. Removal of the toxic heavy metals Pb(II), Zn(II) and Cd(II) was studied intensively by using metal-doped titanium dioxide to measure the isotherms and kinetics. The isotherms studies showed that the highest removal percentage of Pb(II) was achieved by W-doped titanium dioxide, while Fe-doped titanium dioxide and V-doped titanium dioxide performed better for removal of Zn(II) and Cd(II), respectively.

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Номер записи: 71

03-02-2022 дата публикации

Ionic liquids formulation as an environmentally friendly oil dispersant

Номер: US20220032249A1

Автор: Atikah Aini ABDULLAH, Cecilia Devi WILFRED, Magaret a/p SIVAPRAGASAM, Mohamed Ibrahim ABDUL MUTALIB, Muhammad MONIRUZZAMAN, Noorul Adawiyah MUSTAHIL, Siti Hawatulaila BAHARUDDIN

Принадлежит: PETROLIAM NASIONAL BERHAD

Disclosed herein is an oil dispersant composition that contains an acyl amino acid ionic liquid, a dicationic ionic liquid, a fruit acid ionic liquid, a polyacid ionic liquid, and an ethoxylate oleyl ether ionic liquid. The composition may also be diluted with water. The composition is useful for dispersing an oil spill in a body of water, while being less toxic to the aquatic environment and also acting to stimulate bacterial growth in said aquatic environment.

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Номер записи: 72

03-02-2022 дата публикации

Biofilm Electrochemical Reactor for Simultaneously Removing Nitrate Nitrogen and Trace Organic Matters in Water

Номер: US20220033286A1

Автор: Baoxiu ZHAO, Jie Liu, Jincheng Li, Wenxiang XIA, Xiaoli Zhao, Xiaoting YANG, Yanyan Wang

Принадлежит: QINGDAO UNIVERSITY OF TECHNOLOGY

The application belongs to the technical field of water treatment, and relates to a biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water. According to the principles of electrochemical reaction and products completely different under different cathode and anode material conditions, the reactor is divided into three functional regions, wherein first, an electrochemical reaction of producing hydrogen at a cathode and decomposing carbon at an anode is realized in a first functional region so as to provide a condition for reduction of nitrate nitrogen by a hydrogen autotrophic denitrifying bacteria of a particle electrode layer in a second functional region, after products generated by means of the electrochemical reaction and a biochemical reaction in the previous two functional regions enter a third functional region, pollutants such as trace organic components and residual ammonia nitrogen in water are oxidized and decomposed by using anodic oxidation function.

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Номер записи: 73

03-02-2022 дата публикации

DEVICE FOR PURIFYING A FLUID, IN PARTICULAR WASTE WATER

Номер: US20220033288A1

Автор: AUBERT Brice, BOUSSANTROUX Yves Marcel Léon, Raffy Stephane, SALLES Corinne

Принадлежит:

An electrochemical device for purifying a fluid, for example wastewater or sludge, includes an electrochemical filtering membrane, including a metallic support, for example chosen from a screen, a fabric or an open-pore foam, the support being permeable to the fluid, a coating layer of the support including a titanium oxide of general formula TiOx, with x between 1.5 and 1.9. 1. An electrochemical device for purifying a fluid by oxidation of organic compounds contained in said fluid comprising an electrochemical filtering membrane , said electrochemical filtering membrane comprising:a metallic support said metallic support being permeable to said fluid,{'sub': 'x', 'a coating layer of said metallic support comprising or consisting of a titanium oxide of general formula TiO, with x between 1.5 and 1.9.'}2. The electrochemical device as claimed in claim 1 , wherein the electrochemical filtering membrane is configured to act as electrode enabling the partial or complete degradation of said organic compounds.3. The electrochemical device as claimed in claim 1 , wherein the metallic support comprises or consists of a metal chosen from titanium claim 1 , stainless steel.4. The electrochemical device as claimed in claim 1 , wherein the metallic support has a porosity of between 10% and 90%.5. The electrochemical device as claimed in claim 1 , wherein the metallic support has a median pore diameter claim 1 , by volume claim 1 , of between 10 micrometers and 10 millimeters.6. The electrochemical device as claimed in claim 1 , wherein the metallic support has a median pore diameter of less than 50 micrometers.7. The electrochemical device as claimed in claim 1 , wherein the metallic support has a median pore diameter of greater than 70 micrometers.8. The electrochemical device as claimed in claim 25 , wherein the metallic support is a screen.9. The electrochemical device as claimed in claim 25 , wherein the metallic support is a fabric of assembled metal wires.10. The ...

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Номер записи: 74

19-01-2017 дата публикации

Method Of Remediation Of Organic Toxins Using Supported Lipid Bilayer Nanoparticles

Номер: US20170014878A1

Автор: Bojeong KIM, Stephanie L. Wunder

Принадлежит: Temple University of Commonwealth System of Higher Education

The present invention relates to methods and compositions for water treatment and environmental remediation using nanoparticle supported lipid bilayers (NP-SLBs). In one embodiment, the NP-SLBs are single or multilayer lipid bilayers of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) supported by silica.

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Номер записи: 75

19-01-2017 дата публикации

METHOD FOR TREATING ORGANIC WASTE BY HYDROTHERMAL OXIDATION

Номер: US20170015578A1

Автор: Chaillou Mathieu, Richer Carine, Sarrail Grégoire

Принадлежит: INNOVEOX

The present invention relates to a method for treating waste comprising at least one organic phase, said method comprising the following consecutive steps: a) preparation of an oil-in-water emulsion with controlled TOD using waste to be treated comprising at least one organic phase, by mixing said waste with an aqueous phase in a mixer, preferably with high shear; b) possible adjustment of the TOD of the emulsion obtained in step a); and c) hydrothermal oxidation, under subcritical or supercritical starting conditions, of the emulsion thus obtained. The present invention also relates to a facility suitable for implementing the method for treating waste comprising at least one organic phase according to the invention. 2. The method according to claim 1 , wherein the emulsion obtained at the end of step a) or b) has an average drop size of less than 1 claim 1 ,000 μm.3. The method according to claim 1 , wherein the TOD of the oil-in-water emulsion obtained at the end of step b) is comprised between 20 and 400 g/L.4. The method according to claim 1 , wherein the aqueous phase of the emulsion in step a) comprises at least one surfactant claim 1 , representing less than 10% by weight claim 1 , based on the total weight of the aqueous phase.5. The method according to claim 4 , wherein the surfactant is non-ionic claim 4 , preferably selected from among polysorbates and nonylphenol ethoxylates.6. The method according to claim 4 , wherein the surfactant is mixed with the aqueous phase claim 4 , and then the waste to be treated comprising at least one organic phase is gradually incorporated in a mixer to said aqueous phase comprising the surfactant claim 4 , leading to the formation of the oil-in-water emulsion.7. The method according to claim 1 , wherein the steps a) and b) are conducted according to a batch-wise method.8. The method according to claim 1 , wherein the oxidizer used during step c) exclusively consists of dioxygen (O) or air claim 1 , or a mixture thereof.9. ...

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Номер записи: 76

18-01-2018 дата публикации

RESIN NANOCOMPOSITE, METHOD FOR PREPARING THE SAME, AND METHOD FOR TREATING SEWAGE WITH THE SAME

Номер: US20180015441A1

Автор: CHEN Zefang, Cheng Cheng, Pan Bingcai, PAN Siyuan, Zhang Xiaolin

Принадлежит:

A resin nanocomposite, including a resin skeleton structure and nanoparticles. The resin skeleton structure is an aminated polystyrene. The nanoparticles are dispersed in the resin skeleton structure. The specific area of the nanocomposite is between 50 and 300 m/g, and the pore size thereof is between 5 and 40 nm. The invention also provides a method for preparing the resin nanocomposite, the method including: 1) mixing and dissolving a linear polyethylene with a chloromethyl polystyrene or a polyvinyl chloride to yield a polymer solution, and adding the nanoparticles to the polymer solution; 2) adding an alcohol solution to liquid nitrogen; adding the mixed solution dropwise to the liquid nitrogen to yield a mixture; allowing the mixture to stand; collecting, washing and drying resin beads to yield a composite material; and 3) adding the composite material to an amine solution for reaction, and washing and drying the resulting product. 1. A resin nanocomposite , comprising a resin skeleton structure and nanoparticles;{'sup': '2', 'wherein the resin skeleton structure is an aminated polystyrene; the nanoparticles are dispersed in the resin skeleton structure; a specific area of the nanocomposite is between 50 and 300 m/g, and a pore size of the nanocomposite is between 5 and 40 nm.'}2. The nanocomposite of claim 1 , wherein an anion exchange capacity of the nanocomposite is between 0.5 and 3.0 mmol/g claim 1 , and the nanoparticles account for between 1 and 30 percent by weight of total weight of the nanocomposite.3. The nanocomposite of claim 1 , wherein characteristic absorption peaks are present at 1650-1630 cm claim 1 , 1230-1200 cm claim 1 , and <1000 cmin an infrared spectrum of the nanocomposite and respectively correspond to an N—H bending vibration claim 1 , a C—N stretching vibration claim 1 , and the nanoparticles.4. The nanocomposite of claim 2 , wherein characteristic absorption peaks are present at 1650-1630 cm claim 2 , 1230-1200 cm claim 2 , and < ...

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Номер записи: 77

18-01-2018 дата публикации

Magnetic Metal Oxide Biochar Composite Particles, and Their Use in Recovering Pollutants From Aqueous Solution

Номер: US20180016162A1

Автор: Li Ronghua, Wang Jim J, Zhou Baoyue

Принадлежит: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College

Composite particles are disclosed comprising magnesium oxide, iron oxide, and biochar; and methods of making and using the composite particles. The composite particles may be used to recover solutes including phosphate, nitrate, ammonium, and organic compounds from aqueous solution, and the resulting solute-loaded particles may be used as a fertilizer to enhance plant growth. The composites be used to remove pollutants from agricultural runoff, wastewater, and surface water. The particles possess magnetic properties that enhance their recovery following solute adsorption. 1. A process for making magnesium oxide/iron oxide/biochar composite particles , said process comprising the sequential steps of:(a) impregnating biomass with aqueous solutions of one or more iron salts and one or more magnesium salts; and{'sub': 3', '4, '(b) pyrolyzing the iron- and magnesium-impregnated biomass under anoxic conditions to produce composite particles; wherein the composite particles comprise biochar, MgO, and FeO.'}2. The process of claim 1 , wherein the composite particles are ferrimagnetic.3. The process of claim 1 , wherein the biomass comprises sugarcane harvest residue.4. The process of claim 1 , wherein said process additionally comprises the step of drying the biomass before said step of impregnating the biomass with the salts; and wherein the biomass is impregnated with the iron salt before the biomass is impregnated with the magnesium salt.5. The process of claim 4 , wherein the biomass is dried between the iron salt impregnation step and the magnesium salt impregnation step.6. The process of claim 1 , wherein the composite particles have the capacity to adsorb an amount of phosphate equivalent to at least 10% phosphorus by mass of the composite particles.7. The process of claim 1 , wherein the composite particles comprise at least 3% iron by mass claim 1 , and at least 10% magnesium by mass.8. Composite particles produced by the process of .9. A process for recovering ...

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Номер записи: 78

18-01-2018 дата публикации

System and Method for Treating Water Systems with High Voltage Discharge and Ozone

Номер: US20180016163A1

Автор: Denvir Adrian J., Holloway Matt C., Vela David F.

Принадлежит:

A system and method for treating flowing water systems with a plasma discharge to remove or control growth of microbiological species. The system and method protect other components of the water system from being damaged by excess energy from the electrohydraulic treatment. The system and method also recycle ozone gas generated by a high voltage generator that powers the plasma discharge to further treat the water. A gas infusion system upstream of or inside a plasma reaction chamber may be used to create fine bubbles of ozone, air, or other gases in the water being treated to aid in plasma generation. 17-. (canceled)8. The method of further comprising isolating a power supply to the high voltage generator from other electronic components of the flowing water system.9. The method of further comprising providing one or more ground devices connected to components of the water system.10. The method of wherein the protecting step comprises one or more of the following: connecting one or more electromagnetic interference suppressors to one or more electronic components of the flowing water system claim 14 , segregating a first power supply for the one or more electronic components of the water system from a second power supply for the high voltage generator and connecting one or more grounding devices to one or more pipe segments or to a sump in the flowing water system.11. A method for treating water in a flowing water system with a plasma discharge claim 14 , the method comprising:diverting at least a portion of water from the flowing water system to flow through a reaction chamber comprising an inlet in fluid communication with the water system, an outlet in fluid communication with the water system, a body, a high voltage electrode at least partially disposed within the body, and a ground electrode at least partially disposed within the body;generating the plasma discharge in the diverted portion of water flowing through the reaction chamber body to treat that ...

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Номер записи: 79

17-01-2019 дата публикации

Doped carbonaceous materials for photocatalytic removal of pollutants under visible light, making methods and applications of same

Номер: US20190015818A1

Автор: Anindya Ghosh, Bijay P. CHHETRI

Принадлежит: University of Arkansas

A method of synthesizing a doped carbonaceous material includes mixing a carbon precursor material with at least one dopant to form a homogeneous/heterogeneous mixture; and subjecting the mixture to pyrolysis in an inert atmosphere to obtain the doped carbonaceous material. A method of purifying water includes providing an amount of the doped carbonaceous material in the water as a photocatalyst; and illuminating the water containing the doped carbonaceous material with visible light such that under visible light illumination, the doped carbonaceous material generates excitons (electron-hole pairs) and has high electron affinity, which react with oxygen and water adsorbed on its surface forming reactive oxygen species (ROS), such as hydroxyl radicals and superoxide radicals, singlet oxygen, hydrogen peroxide, that, in turn, decompose pollutants and micropollutants.

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Номер записи: 80

21-01-2016 дата публикации

Contraction and confinement of oil slicks on water, including water where ice is present, using non-ionic surfactants

Номер: US20160017560A1

Автор: Koichi Takamura, Nina Loahardjo, Norman R. Morrow, Winoto

Принадлежит: UNIVERSITY OF WYOMING

Methods for reducing the size of an oil slick on a water surface or on a water surface when ice is present are described. Spreading of oil can be reversed by reducing the surface tension of the seawater, for example, by using a low concentration of at least one water-soluble surfactant, such as a non-ionic surfactant. A controlled amount of the surfactant or surfactant mixture may be discharged over time at the inner-wall of a spill control boom surrounding the oil spill, or within the vicinity of the oil spill in the absence of control booms using a soaker hose or a floating polyethylene or polypropylene hose impregnated with surfactant, whereby the confinement and contraction of the oil slick is maintained by compensating for dissolved surfactant and surfactant moving away from the oil slick. Water-soluble surfactants are typically solids or gels at low temperatures when no organic co-solvent is added to the surfactant. The solid or gel form is advantageous for generating slow, but continuous release of surfactant, and thus there is no need for an organic co-solvent. This is not the situation for oil-soluble surfactants, which require an organic co-solvent to be successfully applied at low temperatures. Mixing oil-soluble surfactants with water-soluble surfactants may overcome the problem of dispersing oil-soluble surfactant without an organic co-solvent at low temperatures.

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Номер записи: 81

16-01-2020 дата публикации

ELECTROCHEMICAL ADSORBTION WITH GRAPHENE NANOCOMPOSITES

Номер: US20200017374A1

Автор: Roberts Edward, Sharif Farbod

Принадлежит: UITI Limited Partnership

In alternative aspects, the invention provides processes for cyclic electrochemical adsorption of aqueous contaminants using nanocomposites of graphene with tin oxide or antimony doped tin oxide. 1. A process for treating a liquid , comprising:contacting the liquid with a solid adsorbent nanocomposite of graphene with tin oxide (TO) or antimony doped tin oxide (ATO), so that a contaminant in the liquid is adsorbed onto the nanocomposite to provide a treated liquid; and,passing a current through the nanocomposite to regenerate the nanocomposite by electrochemical conversion of the adsorbed contaminant so as to remove the contaminant from the nanocomposite and thereby provide a regenerated nanocomposite.2. The process of claim 1 , wherein the liquid is aqueous and the contaminant is an organic compound.3. The process of or claim 1 , wherein the electrochemical conversion comprises electrochemical oxidation of the contaminant.4. The process of any one of to claim 1 , wherein the current is 3-50 mA per cmof a current feeder for the nanocomposite.5. The process of claim 4 , wherein the current is 5-15 mA per cmof the current feeder.6. The process of or claim 4 , wherein the current feeder is graphite claim 4 , and a bed of the nanocomposite sits on the current feeder.7. The process of claim 6 , wherein the bed of the nanocomposite is from about 0.2 mm to 2 mm thick.8. The process of or claim 6 , wherein a salt is added to the bed of nanocomposite.9. The process of claim 8 , wherein the salt is NaCl or NaSO.10. The process of any one of to claim 8 , wherein the process is a batch treatment process.11. The process of any one of to claim 8 , wherein the process is a continuous treatment process.12. The process of any one of to claim 8 , wherein the process further comprises contacting the liquid with the regenerated nanocomposite.13. The process of claim 12 , wherein the process further comprises a plurality of cycles of contacting the liquid and regenerating the ...

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Номер записи: 82

16-01-2020 дата публикации

FILTER ASSEMBLY FOR DISINFECTING PATHOGENS USING MULTIPLE WAVELENGTH ULTRAVIOLET LIGHT EMITTING DIODES (UV-LEDS) AND METHOD THEREFOR

Номер: US20200017375A1

Автор: RYU HODON, WOO HYOUNGMIN

Принадлежит: U.S. ENVIRONMENTAL PROTECTION AGENCY

A point-of-use (POU) water filtration device has a container. A plurality of channels is formed within the container, water entering the container flowing through the plurality of channels. A plurality of Ultraviolet (UV) Light Emitting Diodes (LEDs) is provided. Each of the plurality of UV LEDs illuminating UV light down an associated channel of the plurality of channels. 1. A Point of Use (POU) water filtration device comprising:a container;a plurality of channels formed within the container, water entering the container flowing through the plurality of channels; anda plurality of Ultraviolet (UV) Light Emitting Diodes (LEDs), each of the plurality of UV LEDs illuminating UV light down an associated channel of the plurality of channels.2. The POU water filtration device of claim 1 , comprising:a top rover coupled to a top surface of the container enclosing the container; andan opening formed in the top cover allowing the water to enter the container.3. The POU water filtration device of claim 1 , comprising at least one drainage opening formed in claim 1 , a floor of the container claim 1 , the drainage opening allowing the water entering the container to exit the container.4. The POU water filtration device of claim 3 , comprising:a collection plate coupled to the container and positioned below the, floor of the container; andand a plurality of collection plate openings form through the collection plate allowing the water to exit the POU water filtration device.5. The POU water filtration device of claim 1 , comprising at least one of a photo reactant or UV reflective materials coating a floor of the container.6. The particle of claim 2 , comprising at least one of photo reactant or UV reflective claim 2 , materials coating a floor of the container and the top cover.7. The POU water filtration device of claim 1 , comprising at least one of photo reactant or UV reflective materials coating separations walls forming the plurality of channels.8. The POU water ...

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Номер записи: 83

16-01-2020 дата публикации

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

Номер: US20200017758A1

Автор: FENG LIANG, Leiming Li, Tao Chen

Принадлежит: Saudi Arabian Oil Co

Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.

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Номер записи: 84

22-01-2015 дата публикации

Personal Water Purifier

Номер: US20150021243A1

Автор: Herrington Rodney E, Rich Katie F, Roderick Kevin

Принадлежит:

An electrolytic device and method for generating a disinfecting solution that utilizes a brine generator, an electrical circuit with an on-board solar panel and rechargeable storage battery. The electrical circuit preferably conditions the power received from a variety of power sources to charge the storage battery and conditions the power stored in the storage battery to provide the appropriate power to maximize the disinfection efficacy of the disinfecting solution. The on-board solar panel and/or rechargeable battery can be utilized as the power source to recharge or operate other devices such as cell phones, PDAs, flashlights, GPS systems, or other such devices. The device can incorporate a touch screen display and electronics that is an electronic “water finder” application for locating sources of water that can be made potable. The device can incorporate a biocidal agent and foul resistant water filter that can be folded up to provide a compact configuration for storage. 1. An apparatus to facilitate production of potable water , comprising:(a) an electrolytic cell configured to generate oxidation/reduction products, at least a first product of which is suitable for disinfecting water;(b) an electrical system configured to supply electrical power to the electrolytic cell for at least one of (i) a predetermined time, or (ii) until activity in the electrolytic cell indicates that a desired quantity of the first product has been produced;(c) a housing in which the electrolytic cell and electrical system are mounted.2. An apparatus as in claim 1 , further comprising a filter suitable for filtering water claim 1 , wherein the filter is mounted with the housing.3. An apparatus as in claim 2 , wherein the filter is mounted with the housing with a removable mounting relationship between the filter and the housing.4. An apparatus as in claim 2 , wherein the filter comprises a sheet prefolded such that it can be configured to a substantially flat configuration and to a ...

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Номер записи: 85

22-01-2015 дата публикации

HYPERBRANCHED POLYMERS

Номер: US20150021274A1

Автор: ARTS Henricus Johannes, Derks Franciscus Johannes Marie, Hyett Wendy, Witters Stijn

Принадлежит:

There is disclosed certain hyperbranched polyester amides with a cloud point of at least 50° C. in water with end groups selected from: two or more i] tertiary amine functional end groups ii) ammonium functional end groups, iii) polyalkylene glycol functional end groups; iv) quaternary ammonium zwitterionic end groups and/or v) other ionic groups (such as phosphate or sulfate), that are useful in various end uses such as a flocculant. 1. A hyperbranched polyester amide having a cloud point of at least 50° C. in BBRINE where the polyester amide comprises at least one end group thereon selected from:two or more:i) non-cyclic tertiary amine functional end groupsii) quaternary ammonium functional end groups,iii) polyalkylene glycol functional end groups;iv) quaternary ammonium zwitterionic end groups, and/orv) phosphate end groups2. A hyperbranched polyester amide as claimed in claim 1 , which has a cloud point of at least 60° C. in BRINE at pH 4 and where the at least one end group thereon comprises:two or more of:{'sub': '1-6', 'tertiary amine functional end groups substituted by Calkyl'}tertiary amine groups that are protonatedpolypropylene glycol and/or polyethylene glycolzwitterions that have an anionic carboxylate attached to a positively charged nitrogen atom4. A hyperbranched polyester amide as claimed in any preceding claim claim 1 , which comprises cationic functional groups thereon and one or more carboxylate counter anion(s) obtained and/or obtainable from at least one organic (mono or poly) carboxylic acid (including acidic and/or hydrogen salts thereof).5. A hyperbranched polyester amide as claimed in the preceding claim which comprises one or more carboxylate counter ion(s) obtained and/or obtainable from citric acid and/or any suitable acid salt thereof.6. A hyperbranched polyester amide as claimed in any preceding claim comprising a core obtained and/or obtainable from hexahydrophthalic anhydride.7. A hyperbranched polyester amide as claimed in any ...

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Номер записи: 86

22-01-2015 дата публикации

Stable Salt-Free Polyaluminum Chlorosulfates

Номер: US20150021514A1

Автор: Dulko James M.

Принадлежит:

Highly sulfated, high basicity polyaluminum chlorosulfate compositions that can be made by mixing dry aluminum hydroxychloride with a solution of aluminum sulfate or by diluting a dry mixture of aluminum hydroxychloride and aluminum sulfate with water. 1. A composition comprising polyaluminumchlorosulfate (PACS) , wherein said PACS has a sulfate content of 0.5% by weight or greater and a basicity of 50% or greater and wherein said composition comprises less than 0.1% sodium chloride by weight and less than 0.1% sodium sulfate by weight.2. The composition of claim 1 , wherein said PACS comprises formula (I):{'br': None, 'sub': x', '(3-x-2y)', '4', 'y, 'Al(OH)Cl(SO)\u2003\u2003(I)'}wherein:1.78≦x≦2.02 and 0.03≦y≦0.45, and 1.8≦x+y/2≦2.1;{'sub': '4', 'Al:SO=2 to 34;'}Al:Cl=0.9 to 1.3;Al:OH=0.5 to 0.6;% Basicity=55 to 70%; andthe average molecular weight of said PACS is greater than or equal to 95 and less than or equal to 111.3. The PACS compound of claim 2 , wherein:x=1.78 to 1.82;3−x−2y=0.35 to 1.1;y=0.065 to 0.45; andx+y/2=1.83 to 2.024. The PACS compound of claim 2 , wherein:x=1.95 to 2.02;3−x−2y=0.6 to 1.0;y=0.03 to 0.20; andx+y/2=1.95 to 2.1.5. A process for producing polyaluminumchlorosulfate (PACS) claim 2 , wherein said PACS has a sulfate content of 0.5% by weight or greater and a basicity of 55% or greater and wherein said composition comprises less than 0.1% sodium chloride by weight and less than 0.1% sodium sulfate by weight claim 2 , said process comprising:a) mixing aluminum hydroxychloride and aluminum sulfate in water to form an aqueous milky suspension, wherein, on a dry weight basis, the ratio of aluminum hydroxychloride to aluminum sulfate is 0.75-20 parts aluminum hydroxychloride to 1 part aluminum sulfate; andb) maintaining the milky suspension of step a) for a period sufficient to allow said milky suspension to form a clear to slightly turbid solution.6. The process of claim 5 , wherein claim 5 , in step a) claim 5 , 62-83% basic solid aluminum ...

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Номер записи: 87

28-01-2016 дата публикации

Nanocomposite with nanochannels or nanopores for filtration of waste effluents

Номер: US20160023167A1

Автор: Eva Deemer, Russell R. Chianelli

Принадлежит: University of Texas System

The present invention includes a treatment system and methods for removing waste or other agents from a fluid stream, the system comprising: an inlet flow path for receiving a fluid stream from a source outside the treatment system; a vessel for containing the fluid stream, the vessel comprising a permeable filter configured for biological and physical treatment of the fluid stream, the filter comprising one or more nano-thin film or polymer composite layers of carbon materials assembled in sp2 hybridized structures comprising carbon-carbon bonds, wherein the waste or agent is removed as it flows through pores in the film composite; and a drain fluidly connected to the vessel for discharging treated fluid stream from the vessel from which the waste or agents have been removed.

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Номер записи: 88

24-01-2019 дата публикации

MICROBICIDAL COMPOSITION

Номер: US20190021317A1

Автор: Yin Bei

Принадлежит:

A synergistic microbicidal composition comprising a non-ionic surfactant and glutaraldehyde and a method for inhibiting the growth of microorganisms in an aqueous medium. 2. A method for controlling the growth of microorganisms in an aqueous medium; the method comprising adding to the aqueous medium the synergistic microbiocidal composition of .4. A method for controlling the growth of microorganisms in an aqueous medium; the method comprising adding to the aqueous medium the synergistic microbiocidal composition of . This invention relates to microbicidal compositions containing glutaraldehyde and a surfactant.A composition containing 5-chloro-2-methylisothiazolin-3-one, 2-methylisothiazolin-3-one and a nonionic dispersant is disclosed in U.S. Pat. No. 4,295,932. The composition contains a 3:1 mixture of 5-chloro-2-methylisothiazolin-3-one and 2-methylisothiazolin-3-one, and a copolymer of ethylene oxide and propylene oxide. However, there is a need for combinations of microbicides having synergistic activity against various strains of microorganisms to provide effective control of the microorganisms. Moreover, there is a need for such combinations containing lower levels of individual microbicides for environmental and economic benefit. The problem addressed by this invention is to provide such synergistic combinations of microbicides.The present invention is directed to a synergistic microbicidal composition comprising: (a) a nonionic surfactant with structure:H(OCHCH)(OCHCHCH)(OCHCH)OHwherein x+y=22-28 and z=27-33—(Surf. A) and (b) glutaraldehyde; wherein a weight ratio of the glutaraldehyde to nonionic surfactant is from 8:1 to 1:1.The present invention is further directed to a synergistic microbicidal composition comprising: (a) a nonionic surfactant with structure:H(OCHCH)(OCHCHCH)(OCHCH)OHwherein x+y=6-8 and z=40-50—(Surf. B) and (b) glutaraldehyde; wherein a weight ratio of the glutaraldehyde to nonionic surfactant is from 17:1 to 1:1.The present invention ...

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Номер записи: 89

24-01-2019 дата публикации

MICROBICIDAL COMPOSITION

Номер: US20190021318A1

Автор: Yin Bei

Принадлежит:

A synergistic microbicidal composition comprising a non-ionic surfactant and glutaraldehyde and a method for inhibiting the growth of microorganisms in an aqueous medium. 1. A synergistic microbicidal composition comprising: (a) a nonionic surfactant with structure:{'br': None, 'sup': '1', 'sub': 2', '3', '5', '2', '2', '6, 'RO(CHCH(CH)O)(CHCHO)H'}{'sup': '1', 'where Ris 2-ethylhexyl; and (b) glutaraldehyde; wherein a weight ratio of the glutaraldehyde to nonionic surfactant is from 8:1 to 1:1.'}2. A method for controlling the growth of microorganisms in an aqueous medium; the method comprising adding to the aqueous medium the synergistic microbicidal composition of .3. A synergistic microbicidal composition comprising: (a) a nonionic surfactant with structure:{'br': None, 'sup': '1', 'sub': 2', '3', '5', '2', '2', '9, 'RO(CHCH(CH)O)(CHCHO)H'}{'sup': '1', 'where Ris 2-ethylhexyl; and (b) glutaraldehyde; wherein a weight ratio of the glutaraldehyde to nonionic surfactant is from 8:1 to 1:4'}4. A method for controlling the growth of microorganisms in an aqueous medium; the method comprising adding to the aqueous medium the synergistic microbicidal composition of . This invention relates to microbicidal compositions containing glutaraldehyde and a surfactant.A composition containing 5-chloro-2-methylisothiazolin-3-one, 2-methylisothiazolin-3-one and a nonionic dispersant is disclosed in U.S. Pat. No. 4,295,932. The composition contains a 3:1 mixture of 5-chloro-2-methylisothiazolin-3-one and 2-methylisothiazolin-3-one, and a copolymer of ethylene oxide and propylene oxide. However, there is a need for combinations of microbicides having synergistic activity against various strains of microorganisms to provide effective control of the microorganisms. Moreover, there is a need for such combinations containing lower levels of individual microbicides for environmental and economic benefit. The problem addressed by this invention is to provide such synergistic combinations ...

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Номер записи: 90

25-01-2018 дата публикации

INORGANIC PARTICLE POLYMER HYBRIDS AND USES THEREOF

Номер: US20180021700A1

Автор: CHOW Ross, KRENKEL Harold Bernard, LI Haihong, MO Xinghua, ZHOU Zhiang (Joe)

Принадлежит:

Described herein is combination of flocculants for flocculating fines solids in a suspension thereof. The combination includes: (a) an anionic polymer flocculant, and (b) a charged particle-polymer hybrid flocculant that includes charged core particles having an average size between about 150 nm and about 800 nm and each having a polymer polymerized thereon. The anionic polymer flocculant is to be added before, or at substantially the same time as, the charged particle-polymer hybrid flocculant. 1. A method for flocculating mature fine tailings in a suspension thereof , the method comprising:adding an anionic polymer flocculant to the suspension of the mature fine tailings, andadding a charged particle-polymer hybrid flocculant comprising charged core particles having an average size between about 340 nm and about 750 nm and each having a polymer polymerized thereon to the suspension of the mature fine tailings;wherein the anionic polymer flocculant and the charged particle-polymer hybrid flocculant are separate, and wherein the anionic polymer flocculant is added to the suspension of the mature fine tailings before, or at substantially the same time as, the charged particle-polymer hybrid flocculant is added to the suspension of the mature fine tailings.2. The method according to claim 1 , wherein the anionic polymer flocculant and the charged particle polymer hybrid are added to the suspension of the mature fine tailings in a ratio of about 1:1 to 1:5.3. The method according to claim 1 , wherein the anionic polymer flocculant and the charged particle polymer hybrid are added to the suspension of the mature fine tailings in a ratio of about 1:1 to 1:2.4. The method according to claim 1 , wherein the anionic polymer flocculant is added to the suspension of the mature fine tailings before the charged particle-polymer hybrid flocculant is added to the suspension of the mature fine tailings.5. The method according to claim 1 , wherein the charged core particles have an ...

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Номер записи: 91

25-01-2018 дата публикации

WATER TREATMENT APPARATUS AND WATER TREATMENT METHOD

Номер: US20180022624A1

Автор: INANAGA Yasutaka, OINUMA Gaku

Принадлежит: Mitsubishi Electric Corporation

A water treatment apparatus including a central electrode, and an outer periphery electrode, water to be treated being treated by applying a high voltage between the central electrode and the outer periphery electrode to thereby form a discharge in a discharge space between the central electrode and the outer periphery electrode and supplying the water to be treated as water droplets or a water film into the discharge space from above the discharge space, the water treatment apparatus further including a water droplet reformation unit connected to the outer periphery electrode, wherein the water droplet reformation unit captures, as trapped water, a portion of the water to be treated falling in the discharge space, performs water droplet reformation by causing the captured trapped water and gas containing oxygen supplied via a gas pipe to be mixed, and jets out water droplets formed by water droplet reformation into the discharge space. 1: A water treatment apparatus comprising:a central electrode provided such that a longitudinal direction thereof is set to be vertical; andan outer periphery electrode provided coaxially with the central electrode so as to surround the central electrode,water to be treated being treated by applying a high voltage between the central electrode and the outer periphery electrode to thereby form a discharge in a discharge space between the central electrode and the outer periphery electrode and supplying the water to be treated as water droplets or a water film into the discharge space from above the discharge space, a water droplet reformation unit connected to the outer periphery electrode, wherein', 'the water droplet reformation unit captures, as trapped water, a portion of the water to be treated falling in the discharge space, performs water droplet reformation by causing the captured trapped water and gas containing oxygen supplied via a gas pipe to be mixed, and jets out water droplets formed by water droplet reformation into ...

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Номер записи: 92

10-02-2022 дата публикации

INCREASED WASTEWATER FLOW WITH FENTON's REAGENT

Номер: US20220041477A1

Автор: Potts David A., Wigginton Sara K.

Принадлежит:

Use of Fenton's reagent or modified Fenton's reagent is described to promote rejuvenation of water treatment systems hampered by bioclogging matter. Hydraulic flow through one or more components of the water treatment system may be enhanced through the use of modified Fenton's reagent. 1. A method for rejuvenation of a water treatment system or water infiltration field having bioclogging matter , the method comprising:adding at least one metal catalyst in aqueous solution, and at least one oxidizing agent in aqueous solution, to the water treatment system, to at least one infiltration field, or to both.2. The method of wherein the at least one metal catalyst and the at least one oxidizing agent are mixed together before being added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both; the at least one metal catalyst and the at least one oxidizing agent are added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both at the same time; or both.3. The method of wherein the at least one metal catalyst is added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both first claim 1 , and the at least one oxidizing agent is added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both second.4. The method of wherein the at least one oxidizing agent is added to the water treatment system claim 3 , to the at least one infiltration field claim 3 , or to both approximately 1 hour or more after adding the at least one metal catalyst.5. The method of wherein the at least one oxidizing agent is added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both first claim 1 , and the at least one metal catalyst is added to the water treatment system claim 1 , to the at least one infiltration field claim 1 , or to both second.6. The method of wherein the at least one ...

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Номер записи: 93

28-01-2021 дата публикации

Fenton-like Catalytic Material with Dual Reaction Centers and Preparation Method Thereof

Номер: US20210023545A1

Автор: Jinnan Wang, Lifang Chen, Suqian XU, Weilin BIAN, Zhibin WEN

Принадлежит: NANJING UNIVERSITY, Nanjing University& Yancheng Academy Of Environmental Protection Technology And Engineering

A method for preparing a Fenton-like catalytic material with dual reaction centers includes the following steps: (1) placing a nitrogen-containing compound in a muffle furnace for calcination, then dissolving the product in deionized water to form a suspension solution; (2) dissolving aluminum nitrate nonahydrate, copper nitrate trihydrate and glucose in deionized water to form a solution; (3) adding the suspension solution in a dropwise manner to the solution, then performing a closed hydrothermal reaction, washing with water, centrifuging and drying to obtain a solid; and (4) placing the prepared solid in a muffle furnace for calcination to obtain the Fenton-like catalytic material. The catalytic material presents a complete ball-flower shaped mesoporous structure, has a large specific surface area, and can expose more catalytic active sites, so that H2O2 is reduced at the electron-rich center as much as possible to generate hydroxyl radicals during the reaction.

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Номер записи: 94

23-01-2020 дата публикации

METHOD AND DEVICE FOR SEWAGE TREATMENT

Номер: US20200024162A1

Автор: DAI Ximei, DONG Qingqing, LI Haipu, PAN Siyuan, YANG Zhaoguang, Yao Jingjing, YUAN Nadi

Принадлежит:

A device for sewage treatment comprises a treatment tank, a power and electric control unit, a gas supply and tail gas recovery unit and a circular reaction treatment unit; the treatment tank is provided with a liquid inlet, a liquid outlet, a gas intake port and a tail gas exhaust port; the gas supply and tail gas recovery unit is communicated with the treatment tank through the gas intake port; the tail gas exhaust port is communicated with the gas supply and tail gas recovery unit; the circular reaction treatment unit comprises an external circulating device and a reaction treatment element arranged inside the treatment tank. 13018301830. A device for sewage treatment , comprising a treatment tank , a power and electric control unit , a gas supply and tail gas recovery unit and a circular reaction treatment unit , wherein the treatment tank is provided with a liquid inlet () , a liquid outlet () , a gas intake port and a tail gas exhaust port; the gas supply and tail gas recovery unit is communicated with the treatment tank through the gas intake port; the tail gas exhaust port is communicated with the gas supply and tail gas recovery unit; the circular reaction treatment unit comprises an external circulating device and a reaction treatment element; the reaction treatment element is arranged inside the treatment tank; the external circulating device is arranged outside the treatment tank and is communicated with the liquid inlet () and the liquid outlet () respectively; the power and electric control unit is connected with the reaction treatment element; and sewage to be processed enters the treatment tank through the liquid inlet () and reacts with the reaction treatment element.2. The device for sewage treatment according to claim 1 , wherein the reaction treatment element comprises a micro-nano aeration disk claim 1 , an electrochemical cathode claim 1 , a three-dimensional particle electrode and an electrochemical anode; the micro-nano aeration disk claim 1 ...

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Номер записи: 95

24-04-2014 дата публикации

Flotation process for the reduction of particle content in cooling water

Номер: US20140110346A1

Автор: Arthur I. Shirley, Marcus Guzmann

Принадлежит: Linde GmbH

Systems and methods for removing particles from cooling water employing a flotation process to remove particulate matter from the cooling water, particularly during times of the year when particle content in the water is at its peak.

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Номер записи: 96

28-01-2021 дата публикации

METHOD FOR ENHANCING NITROGEN REMOVAL BY DENITRIFICATION IN HORIZONTAL SUBSURFACE-FLOW CONSTRUCTED WETLAND

Номер: US20210024390A1

Автор: DIAO Fei, KE Fan, LI WENCHAO, PAN Jizheng

Принадлежит: Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences

A method for enhancing nitrogen removal by denitrification in a horizontal subsurface-flow constructed wetland, which includes three treatment steps of strain acclimation, strain screening and strain pouring. Firstly, the enrichment of aerobic denitrifying bacteria is achieved through acclimation culture, and the denitrification advantages of the strains are improved to obtain acclimated strains; meanwhile in the present technical solution, after obtained, the acclimated strains are screened for multiple times to remove aging strains and some strains incapable of performing denitrification from sludge and obtain strains truly having good denitrification effects as strains to be poured; and finally the strains to be poured as obtained by the screening is combined with a biocarrier to obtain an immobilized filler and thus prevent the strains from loss. 1. A method for enhancing nitrogen removal by denitrification in a horizontal subsurface-flow constructed wetland , comprising the following steps:1) conducting strain acclimation;2) conducting strain screening;3) conducting strain pouring; and4) ending the operation.2. The method of claim 1 , wherein conducting strain acclimation comprises:A. preparing a carbon source, a nitrogen source, activated sludge obtained after enrichment culture and a culture solution, and concentrating the activated sludge to obtain a concentrated sludge solution for later use;B. pouring the culture solution prepared in step A into a container, then adding the concentrated sludge solution, adjusting the pH, and then adding the carbon source and the nitrogen source, so that in the container the carbon content is 390-410 ppm, the nitrogen content is about 18-22 ppm, and a ratio of carbon to nitrogen is C/N=20; and{'img': {'@id': 'CUSTOM-CHARACTER-00001', '@he': '2.96mm', '@wi': '53.51mm', '@file': 'US20210024390A1-20210128-P00999.TIF', '@alt': 'text missing or illegible when filed', '@img-content': 'character', '@img-format': 'tif'}, 'C. ...

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Номер записи: 97

28-01-2021 дата публикации

ION REMOVAL SYSTEM

Номер: US20210024393A1

Автор: AKITA Tomohiro, KIHARA Ayane, MAEDA Yasunari

Принадлежит:

An ion removal system includes: an ion removal device including a hard water storage configured to store hard water and a fine bubble generator configured to generate a fine bubble to supply the hard water storage with the fine bubble, for removing a metal ion from the hard water by adsorbing the metal ion in the hard water to the fines bubble in the hard water storage and crystallizing and precipitating the adsorbed metal ion; and a particle feeder configured to bring a particle containing a same element as that of the metal ion into the hard water at a feeding point, the feeding point being located upstream of the hard water storage or located in the hard water storage. 1. An ion removal system comprising:an ion removal device including a hard water storage configured to store hard water and a fine bubble generator configured to generate a fine bubble to supply the hard water storage with the fine bubble, for removing a metal ion from the hard water by adsorbing the metal ion in the hard water to the fines bubble in the hard water storage and crystallizing and precipitating the adsorbed metal ion; anda particle feeder configured to bring a particle containing a same element as that of the metal ion into the hard water at a feeding point, the feeding point being located upstream of the hard water storage or located in the hard water storage.2. The ion removal system according to claim 1 ,wherein the metal ion is a calcium ion; andthe particle is calcium carbonate.3. The ion removal system according to claim 1 ,wherein the particle feeder includes: a particle feeding mechanism connected to the feeding point to bring the particle to the feeding point; and a particle storage configured to store the particle to be supplied to the particle feeding mechanism.4. The ion removal system according to claim 3 , further comprising an ion removal gas storage configured to store an ion removal gas as a raw material of the fine bubble generated by the fine bubble generator claim ...

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Номер записи: 98

29-01-2015 дата публикации

PORTABLE STERILIZATION APPARATUS

Номер: US20150027940A1

Автор: LEE Jung Ryul, LEE Young Hun

Принадлежит:

Disclosed herein is a portable sterilization apparatus. The portable sterilization apparatus includes: a case; a power supply disposed inside the case; a power supply disposed inside the case; a hydroxyl radical generator electrically connected to the power supply and exposed outside from the case; and a switch unit disposed inside the case and selectively supplying electric power from the power supply to the hydroxyl radical generator. 1. A portable sterilization apparatus comprising:a case;a power supply disposed inside the case;a hydroxyl radical generator electrically connected to the power supply and exposed outside from the case; anda switch unit disposed inside the case and selectively supplying electric power from the power supply to the hydroxyl radical generator.2. The portable sterilization apparatus according to claim 1 , wherein the case is provided with an exposure cap to expose the hydroxyl radical generator to an outside; and the exposure cap is detachable from the case.3. The portable sterilization apparatus according to claim 1 , wherein the hydroxyl radical generator comprises:a plurality of positive electrodes electrically connected to the power supply;a plurality of negative electrodes electrically connected to the power supply; andan electrode guide allowing the plurality of negative electrodes and the plurality of positive electrodes to be alternately stacked one above another in a separated state, and electrically connecting the plurality of negative electrodes to each other while electrically connecting the plurality of positive electrodes to each other.4. The portable sterilization apparatus according to claim 3 , wherein the electrode guide comprises:a pair of electric bars passing through the plurality of positive electrodes and the plurality of negative electrodes, respectively, the pair of electric bars being electrically connected to the power supply and arranged in parallel;connecting members each fitted to the electric bar and ...

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Номер записи: 99

29-01-2015 дата публикации

Process for treating with a chemical compound a body of water used in aquaculture

Номер: US20150027962A1

Автор: SKITT Paul

Принадлежит:

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. 2331ab. The process according to claim 1 , wherein the induced liquid (B) is drawn in the educator part () and then in the diffuser part () of the educator nozzle due to the high velocity of the pumped liquid (A) exiting from the nozzle part () of the educator nozzle.3. The process according to claim 1 , wherein the agitation system comprises more than one submerged outlet equipped with an eductor nozzle claim 1 , per square meter of the upper surface area of the body of water to be treated.4. The process according to claim 1 , wherein the agitation system is land-based claim 1 , connected to a trailer claim 1 , mounted on a boat claim 1 , or connected to a boat.5. The process according to claim 1 , wherein the pump is a submersible electric pump submersed in the body of water to be treated claim 1 , and wherein the pumped liquid (A) comprises at least part of the water to be treated.6. The process according to claim 1 , wherein the pump is located out of the body of water to be treated claim 1 , and wherein the pumped liquid (A) is withdrawn from a liquid contained in a storage container or in a dosing chamber claim 1 , or combinations thereof.7. The process according to claim 1 , being applied to a body of water having a volume from 0.5 m3 to 10000 m3.8. The process according to claim 1 , wherein the at least one chemical compound is selected from the group consisting of microbicides claim 1 , bactericides claim 1 , viricides claim 1 , parasiticides claim 1 , fungicides claim 1 , algicides claim 1 , and combinations thereof.9. The process according to claim 1 , wherein the at least one ...

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Номер записи: 100