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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 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 51. Отображено 50.
21-06-2018 дата публикации

PROCESS AND SYSTEM FOR REMOVING AMMONIUM FROM WASTEWATER

Номер: US20180170775A1
Автор: Xiangchun YIN, Benjamin SPARROW
Принадлежит: Saltworks Technologies Inc.

Methods, systems, and techniques for removing ammonium from ammonia-containing water involve using a stack that has alternating product chambers and concentrate chambers for receiving ammonia-containing water and an acidic solution, respectively, with the chambers being bounded by alternating cation exchange membranes and proton permselective cation exchange membranes. Ammonium moves from the product chambers to the concentrate chambers across the CEMs and protons move from the concentrate chambers to the product chambers across the pCEMs when the stack is in use. An electrolyzer may also be used to convert the ammonium in the concentrate chambers into nitrogen. 1. A system for removing ammonium from ammonia-containing water , the system comprising an ammonium-removal stack , the stack comprising:(a) alternating product chambers and concentrate chambers configured to receive the ammonia-containing water and an acidic solution, respectively; and 'wherein the ammonium moves from the product chambers to the concentrate chambers across the CEMs and protons move from the concentrate chambers to the product chambers across the pCEMs when the stack is in use.', '(b) alternating cation exchange membranes (“CEMs”) and proton permselective cation exchange membranes (“pCEMs”) located between and bounding the product and concentrate chambers, wherein the pCEMs have a proton permeability of more than ten times that of other cations,'}2. The system of wherein the stack further comprises a first electrode and a second electrode claim 1 , wherein the product and concentrate chambers are located between the first and second electrodes.3. The system of wherein the membrane that bounds the chamber nearest to the first electrode and the membrane that bounds the chamber nearest to the second electrode are pCEMs.4. The system of wherein at least one of the membranes that bounds the chamber nearest to the first electrode and that bounds the chamber nearest to the second electrode is one ...

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Номер записи: 1
21-03-2024 дата публикации

System and Method for Cleaning of a Forced-Circulation Evaporative Crystallizer

Номер: US20240091668A1
Автор: Justin Donghoon LEE, Benjamin SPARROW
Принадлежит: Saltworks Technologies Inc

A system and method for cleaning of a forced-circulation evaporative crystallizer. The crystallizer is used to produce salt solids and includes a circulation pump, a heat exchanger, a separator, and a vapor processor. Solids deposits accumulate during salt solids production within at least one of the circulation pump, heat exchanger, and separator. A solids deposits metric representative of an amount of the accumulated solids deposits is measured. The solids deposits metric is determined to deviate from a baseline by at least a cleaning threshold. Certain determinations are made based on the solids deposits metric: determining a cleaning mode and at least one of a type of cleaning solution and a duration for which at least one of the circulation pump, heat exchanger, and separator is to be cleaned. At least one of the circulation pump, heat exchanger, and separator is then cleaned in accordance with those determinations.

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Номер записи: 2
02-02-2012 дата публикации

Modular Apparatus For A Saltwater Desalinating System, And Method For Using Same

Номер: US20120024704A1
Автор: Kim Kyungbaek, Sparrow Benjamin Stuart, Tang James Hing Bong, Zoshi Joshua Aniket
Принадлежит: Saltworks Technologies Inc.

The present disclosure is directed at a modular apparatus for a saltwater desalinating system, and a method for using same. The apparatus includes multiple internal modules that are compressively coupled to each other. Each of the internal modules includes a pair of rigid end plates located at opposing ends of the internal module, and a stack of membrane bounded compartments that are layered from one of the end plates to the other. The modular apparatus can be used in a membrane based desalination system, which includes concentration difference energy systems, electrodialysis reversal systems, and membrane distillation systems. The modular apparatus helps to mitigate problems such as leakage and buckling in such systems, and can be used to increase membrane packing density and, accordingly, desalination efficiency. 1. An apparatus for a saltwater desalinating system , the apparatus comprising a plurality of internal modules compressively coupled to each other wherein each of the internal modules comprises:a pair of rigid interior end plates located at opposing ends of the internal module; anda stack of membrane bounded compartments layered from one of the interior end plates to the other of the interior end plates.2. The apparatus as claimed in claim 1 , wherein the stack of membrane bounded compartments comprises alternating membranes and gasket separators claim 1 , and wherein the apparatus further comprises a series of dowel holes spaced around the periphery of each of the gasket separators claim 1 , membranes and end plates of the internal modules such that when the gasket separators claim 1 , membranes claim 1 , and end plates are aligned with each other claim 1 , the dowel holes align to form dowel conduits extending between the opposing ends of the internal module.3. The apparatus as claimed in claim 2 , wherein for an adjacent pair of the internal modules claim 2 , the apparatus further comprises dowels extending through one subset of the dowel holes of one ...

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Номер записи: 3
02-05-2013 дата публикации

APPARATUS FOR COMPRESSION OF A STACK AND FOR A WATER TREATMENT SYSTEM

Номер: US20130105325A1
Автор: Kim Kyungbaek, Sparrow Benjamin Stuart, Tang James Hing Bong, Zoshi Joshua Aniket
Принадлежит: Saltworks Technologies Inc.

The present disclosure is directed at a compression device for compressing a stack to prevent leaks and at an apparatus including the stack and the compression device. The stack includes a pair of rigid end plates located at opposing ends of the stack, a plurality of membrane bounded compartments layered between one of the rigid end plates and the other of the rigid end plates and fluid manifolds extending through the membrane bound compartments. The compression device is fixedly coupled to opposing ends of the pair of rigid end plates and includes compression members movable to compress one of the rigid end plates towards the other of the rigid end plates. The compression members are positioned to apply force to the stack in the vicinity of the fluid manifolds. 1. An apparatus comprising:a stack comprising:(a) a pair of rigid end plates located at opposing ends of the stack;(b) a plurality of membrane bounded compartments layered between one of the rigid end plates and the other of the rigid end plates; and(c) fluid manifolds extending through the membrane bounded compartments; anda compression device fixedly coupled to opposing ends of the pair of rigid end plates and including compression members movable to compress one of the rigid end plates towards the other of the rigid end plates, wherein the compression members are positioned to apply force to the rigid end plates in the vicinity of the fluid manifolds.2. An apparatus as claimed in claim 1 , further comprising:(a) a series of holes spaced around the periphery of each of the compression device, the pair of rigid end plates and the plurality of membranes such that when the compression device, the pair of rigid end plates and the plurality of membranes are aligned with each other, the holes align to form conduits extending therethrough;(b) a plurality of tensioning rod having threaded ends and extending through the conduits; and(c) a pair of tensioning rod nuts screwed on to the ends of the tensioning rod to ...

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Номер записи: 4
06-03-2014 дата публикации

Method, Apparatus And System For Concentrating Solutions Using Evaporation

Номер: US20140061958A1
Автор: Coleman Ross, Kim Hojung, Sparrow Benjamin Stuart, Tsin Henry
Принадлежит: Saltworks Technologies Inc.

The present disclosure is directed at a system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air. 1. A system for concentrating a solution comprising:a first solution concentrating circuit comprising: a first humidification device comprising a first humidification media; a first dehumidification device in gas flow communication with the first humidification device; a first solution flow path for flow of a first solution to be concentrated to the first humidification device; the first humidification media facilitating evaporation of liquid from the first solution to be concentrated to a first gas as the first solution to be concentrated passes through the first humidification media thereby concentrating the first solution and producing a first humidified gas;a second solution concentrating circuit comprising: a second solution container; a second humidification device comprising a second humidification media; a second solution flow path for flow of a second solution to be concentrated to the second humidification device; the second humidification media facilitating evaporation ...

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Номер записи: 5
07-01-2016 дата публикации

MULTIVALENT ION SEPARATING DESALINATION PROCESS AND SYSTEM

Номер: US20160002082A1
Автор: Man Malcolm, Sparrow Benjamin Stuart, Yin Xiangchun
Принадлежит: Saltworks Technologies Inc.

A multivalent ion separating desalination system and associated process employs at least one multivalent ion separator subsystem to split sparingly soluble multivalent ion species from saltwater into highly soluble salts comprising multivalent cations and monovalent anions and salts comprising monovalent cations and multivalent anions. 1. A process for desalinating saltwater , the input saltwater comprising multivalent ion pairs and the process comprising:(a) circulating the input saltwater through a common fluid circuit comprising a multivalent cation-extracting branch and a multivalent anion-extracting branch, wherein a portion of the cation-extracting branch and a portion of the anion-extracting branch are distinct from each other;(b) removing multivalent cations from the input saltwater when the input saltwater is in the portion of the cation-extracting branch distinct from the anion-extracting branch, wherein the multivalent cations are removed using a multivalent cation-extracting stack comprising alternating cation exchange membranes and monovalent anion exchange membranes; and(c) removing multivalent anions from the input saltwater when the input saltwater is in the portion of the anion-extracting branch distinct from the cation-extracting branch, wherein the multivalent anions are removed using a multivalent anion-extracting stack comprising alternating anion exchange membranes and monovalent cation exchange membranes.2. The process of further comprising:(a) transferring the multivalent cations removed from the input saltwater to a multivalent cation fluid circuit distinct from the common fluid circuit; and(b) transferring the multivalent anions removed from the input saltwater to a multivalent anion fluid circuit distinct from the common fluid circuit and the multivalent cation fluid circuit.3. The process of or further comprising adding monovalent ion species to the input saltwater upstream of the portions of the anion-extracting and cation-extracting ...

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Номер записи: 6
11-02-2016 дата публикации

Multiple Effect Concentration Swap De-Scaling System

Номер: US20160039683A1
Автор: Naveed Saqib, Sparrow Benjamin Stuart
Принадлежит: Saltworks Technologies Inc.

A multistage thermal desalination system, together with its associated method of use, allows de-scaling of subsystems exposed to saturated saltwater by alternating the saturation stage of the process between two neighboring physical desalination stages. The desalination system is provided with at least one transfer conduit, at least one pump, and valving to permit saltwaters being desalinated by higher and lower stage desalination subsystems to be swapped. By replacing the saturated saltwater in a higher salt concentration desalination subsystem with lower salt concentration saltwater, the scaling in higher salt concentration desalination subsystem is reduced while the saturation load is placed on another of the desalination subsystems. 1. A multistage desalination system comprising:(a) a higher stage desalination subsystem comprising a first evaporation stage for evaporating a first saltwater at a first temperature and a first condensation stage, fluidly coupled to the first evaporation stage, for condensing product water from vapor that evaporates from the saltwater in the first evaporation stage;(b) a lower stage desalination subsystem comprising a second evaporation stage for evaporating a second saltwater at a second temperature and a second condensation stage, fluidly coupled to the second evaporation stage, for condensing product water from vapor that evaporates from the saltwater in the second evaporation stage, wherein the second temperature is lower than the first temperature;(c) a first pump and a second pump fluidly coupled to the higher and lower stage desalination subsystems, respectively, for pumping the saltwaters through the desalination subsystems;(d) at least one transfer conduit fluidly coupling the higher and lower stage desalination systems; and(e) valving fluidly coupled at least to the at least one transfer conduit, the valving configurable to operate the multistage desalination system in a normal mode in which the first and second saltwaters ...

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Номер записи: 7
19-02-2015 дата публикации

MODULAR HUMIDIFICATION-DEHUMIDIFICATION APPARATUS FOR CONCENTRATING SOLUTIONS

Номер: US20150047963A1
Автор: Roch Nicholas C., Sparrow Benjamin Stuart
Принадлежит:

The present disclosure describes a modular humidification-dehumidification (HDH) apparatus and system for concentrating a solution including a plurality of internal modules coupled to each other. The plurality of internal modules includes a humidification module and a dehumidification module in gas flow communication with the humidification module. The humidification module includes humidification media facilitating evaporation of liquid from the solution to gas as the solution passes through the humidification media thereby producing a concentrated solution and a humidified gas. The dehumidification module includes a condensing heat exchanger for condensing vapour from the humidified gas. 1. A modular humidification-dehumidification (HDH) apparatus for concentrating a solution , the apparatus comprising a plurality of internal modules coupled to each other , the plurality of internal modules comprising:(a) a humidification module comprising humidification media facilitating evaporation of liquid from the solution to gas as the solution passes through the humidification media thereby producing a concentrated solution and a humidified gas; and(b) a dehumidification module in gas flow communication with the humidification module, the dehumidification module comprising a condensing heat exchanger for condensing vapour from the humidified gas.2. The apparatus of further comprising a fan for generating gas flow through the plurality of internal modules.3. The apparatus of claim 2 , wherein the fan is configured to generate gas flow in one direction through the plurality of internal modules and to generate gas flow in an opposite direction through the plurality of internal modules.4. The apparatus of claim 2 , wherein the plurality of internal modules further comprises a fan module and the fan is positioned in the fan module.5. The apparatus of further comprising a plurality of seals with each seal positioned between adjacent internal modules to fluidly seal the internal ...

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Номер записи: 8
09-04-2015 дата публикации

Method, Apparatus And System For Desalinating Saltwater

Номер: US20150096891A1
Автор: Benjamin SPARROW, Henry TSIN, Joshua Zoshi, Malcolm Man
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at an apparatus, method and plant for desalinating saltwater and contaminated saltwater. The apparatus includes a stack and a manifolding assembly. The stack includes a product chamber, a first and second concentrate chamber, an anion exchange membrane forming a boundary between the first concentrate chamber and the product chamber and a cation exchange membrane forming a boundary between the second concentrate chamber and the product chamber. The manifolding assembly includes product and concentrate manifolding fluidly coupled to the product and concentrate chambers respectively, to convey a saltwater being desalinated to and away from the product chamber, and a concentrate to and away from the concentrate chambers. The stack may include a diluent chamber and adjacent anion or cation exchange membranes between the product chamber, diluent chamber and concentrate chamber to respectively convey anions or cations across multiple chambers.

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Номер записи: 9
17-07-2014 дата публикации

METHOD, APPARATUS AND SYSTEM FOR DESALINATING SALTWATER

Номер: US20140197029A1
Автор: Man Malcolm, Sparrow Benjamin, Tsin Henry, Zoshi Joshua
Принадлежит: Saltworks Technologies, Inc.

An apparatus, method and plant for desalinating saltwater and contaminated saltwater. The apparatus includes a stack and a manifolding assembly. The stack includes a product chamber, a first and second concentrate chamber, an anion exchange membrane forming a boundary between the first concentrate chamber and the product chamber and a cation exchange membrane forming a boundary between the second concentrate chamber and the product chamber. The manifolding assembly includes product and concentrate manifolding fluidly coupled to the product and concentrate chambers respectively, to convey a saltwater being desalinated to and away from the product chamber, and a concentrate to and away from the concentrate chambers. The stack may include a diluent chamber and adjacent anion or cation exchange membranes between the product chamber, diluent chamber and concentrate chamber to respectively convey anions or cations across multiple chambers. 1. A method of reducing salinity of a product in a stack comprising:(a) flowing a product feed through a first product chamber in the stack, the first product chamber having a first anion exchange membrane on one side of and in ionic communication with the first product chamber and a first cation exchange membrane on another side of and in ionic communication with the first product chamber;(b) flowing a concentrate feed through a first concentrate chamber in the stack in ionic communication with the first anion exchange membrane;(c) flowing the concentrate feed through a second concentrate chamber in the stack in ionic communication with the first cation exchange membrane;(d) flowing an electrolyte through a first and second electrolyte chamber in the stack, the first electrolyte chamber bounded on one side by and in ionic communication with a first stack end cation exchange membrane and on another side by and in electrical communication with a first electrode, the second electrolyte chamber bounded on one side by and in ionic ...

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Номер записи: 10
11-06-2015 дата публикации

METHOD, APPARATUS AND SYSTEM FOR DESALINATING SALTWATER

Номер: US20150158746A1
Автор: Man Malcolm, Sparrow Benjamin Stuart, Tsin Henry, Zoshi Joshua
Принадлежит: Saltworks Technologies, Inc.

The present disclosure is directed at an apparatus, method and plant for desalinating saltwater and contaminated saltwater. The apparatus comprises a stack and a manifolding assembly. The stack comprises a product chamber, a first and second concentrate chamber, an anion exchange membrane forming a boundary between the first concentrate chamber and the product chamber and a cation exchange membrane forming a boundary between the second concentrate chamber and the product chamber. The manifolding assembly comprises product and concentrate manifolding fluidly coupled to the product and concentrate chambers respectively, to convey a saltwater being desalinated to and away from the product chamber, and a concentrate to and away from the concentrate chambers. The stack may include a diluent chamber and adjacent anion or cation exchange membranes between the product chamber, diluent chamber and concentrate chamber to respectively convey anions or cations across multiple chambers. The stack may also contain a rinse chamber bounded by an anion exchange membrane to guard the stack electrodes from scaling cations. A cleaning system for cleaning the stack is also disclosed. 1. An apparatus for desalinating saltwater comprising: (i) a product chamber bounded on one side by a product chamber anion exchange membrane and bounded on another side by a product chamber cation exchange membrane;', '(ii) a concentrate chamber bounded on one side by a concentrate chamber anion exchange membrane and bounded on another side by a concentrate chamber cation exchange membrane;', '(iv) a first diluent chamber between the product chamber and the concentrate chamber; and', '(iv) a second diluent chamber on an opposite side of the product chamber to the first diluent chamber;', the product chamber anion exchange membrane and the concentrate chamber anion exchange membrane in adjacent alignment either side of the first diluent chamber; or', 'the product chamber cation exchange membrane and the ...

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Номер записи: 11
25-09-2014 дата публикации

METHOD, APPARATUS AND SYSTEM FOR CONCENTRATING SOLUTIONS USING EVAPORATION

Номер: US20140284002A1
Автор: Coleman Ross, Kim Hojung, Sparrow Benjamin Stuart, Tsin Henry
Принадлежит: Saltworks Technologies Inc.

A system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air. 1. A system for concentrating a solution comprising:a humidification device comprising humidification media;a solution flow path for flow of a solution to be concentrated to the humidification device, the humidification media facilitating evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution; and a cleaning solution container for cleaning solution; and', 'a closable outlet flow path fluidly connecting the cleaning solution container with the solution flow path, for controllable flow of cleaning solution from the cleaning solution container through at least part of the solution flow path., 'a cleaning circuit comprising2. The system of claim 1 , wherein the outlet flow path is closable by a one way valve.3. The system of claim 1 , wherein the cleaning circuit further comprises a closable return flow path fluidly connecting the solution flow path with the cleaning solution container for return flow ...

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Номер записи: 12
29-07-2021 дата публикации

CONTROLLED PRODUCED WATER DESALINATION FOR ENHANCED HYDROCARBON RECOVERY

Номер: US20210230024A1
Автор: Man Malcolm, Sparrow Benjamin, Yin Xiangchun
Принадлежит: Saltworks Technologies Inc.

Processes, systems, and techniques for treating produced water drawn from a subterranean formation. The produced water is provided and contains dissolved solids and magnesium, calcium, and sodium ions. The produced water is desalinated using an electrically-driven membrane separation apparatus that includes alternating anion exchange membranes and cation exchange membranes defining opposing sides of alternating product and concentrate chambers. The desalinating involves flowing the produced water through the product chamber, flowing a second water through the concentrate chamber, and applying an electric potential across the cation and anion exchange membranes as the produced and second waters flow through the product and concentrate chambers, respectively. The product water is consequently produced and has a total dissolved solids content of between 300 mg/L and 8,000 mg/L, a total concentration of calcium ions and magnesium ions less than 100 mg/L, and a sodium adsorption ratio of 20 to 90. 1. A process for treating produced water drawn from a subterranean formation , the process comprising:(a) providing the produced water, wherein the produced water comprises dissolved solids, and magnesium, calcium, and sodium ions; (i) flowing the produced water through the product chamber;', '(ii) flowing a second water through the concentrate chamber; and', '(iii) applying an electric potential across the cation and anion exchange membranes as the produced and second waters flow through the product and concentrate chambers, respectively; and, '(b) desalinating the produced water using an electrically-driven membrane separation apparatus, wherein the separation apparatus comprises alternating anion exchange membranes and cation exchange membranes defining opposing sides of alternating product and concentrate chambers, wherein the permeability of at least one of the cation exchange membranes toward multivalent calcium and magnesium ions over monovalent sodium ions is between 1. ...

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Номер записи: 13
27-07-2017 дата публикации

Process and apparatus for multivalent ion desalination

Номер: US20170210644A1
Автор: Benjamin SPARROW, Malcolm Man, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc

Processes, systems, and techniques for multivalent ion desalination of a feed water use an apparatus that has a cathode, an anode, and an electrodialysis cell located between the cathode and anode. The cell has a product chamber through which the feed water flows, a multivalent cation concentrating chamber on a cathodic side of the product chamber through which the concentrated multivalent cation solution flows, and a multivalent anion concentrating chamber on an anodic side of the product chamber through which the concentrated multivalent anion solution flows. The product chamber and the multivalent cation concentrating chamber are each bounded by and share a cation exchange membrane, and the product chamber and the multivalent anion concentrating chamber are each bounded by and share an anion exchange membrane. A monovalent ion species is added to at least one of the concentrated multivalent cation solution and the concentrated multivalent anion solution.

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Номер записи: 14
16-10-2014 дата публикации

Method, Apparatus And System For Concentrating Solutions Using Evaporation

Номер: US20140305149A1
Автор: Coleman Ross, Kim Hojung, Sparrow Benjamin Stuart, Tsin Henry
Принадлежит: Saltworks Technologies Inc.

A system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air. 1. A system for concentrating a solution comprising:a humidification device comprising humidification media;a solution flow path for flow of a solution to be concentrated to the humidification device, the humidification media facilitating evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution; anda solution container in fluid communication with an outlet of the humidification device such that the concentrated solution passes into the solution container, the solution container comprising a body portion and a cone shaped portion configured to funnel the concentrated solution into a solids precipitation area.2. The system of claim 1 , wherein the solution container further comprises an inlet for the concentrated solution and a deflection plate positioned beneath the inlet and above the solids precipitation area claim 1 , such that the concentrated solution entering the solution container is deflected ...

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Номер записи: 15
20-08-2015 дата публикации

Acrylamide-Based Crosslinking Monomers, Their Preparation, And Uses Thereof

Номер: US20150232627A1
Автор: Sparrow Benjamin, Yin Xiangchun, Zhou Zhongyuan
Принадлежит:

A process for preparing an acrylamide-based crosslinking monomer comprising reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid or methacrylic acid. These acrylamide-based crosslinking monomers are used in the preparation of coating compositions, adhesive compositions curable by applying thermal or radiation energy, and in the preparation of cation or anion exchange membranes. 124-. (canceled)26. The process according to claim 25 , wherein the ion exchange membrane is a cation exchange membrane; andwherein the ionic monomer is selected from the group consisting of sodium 4-vinylbenzenesulfonate, 3-sulfopropyl acrylate potassium salt, 2-acrylamido-2-methyl-1-propanesulfonic acid, and 2-acrylamido-2-methyl-1-propanesulfonic acid salts.27. The process according to claim 25 , wherein the ion exchange membrane is an anion exchange membrane; andwherein the ionic monomer is selected from the group consisting of 3-acrylamidopropyl trimethylammonium chloride, 2-acryloyloxyethyl trimethylammonium chloride, 2-methacryloyloxyethyl trimethylammonium chloride, 3-methacryloylaminopropyl trimethylammonium chloride, and vinylbenzyl trimethylammonium chloride.29. A process for preparing a highly crosslinked ion exchange membrane comprising a homogenous crosslinked ion-exchange polymer claim 25 , the process comprising: an ionic monomer having an ionic group selected from the group consisting of a sulfonic acid group, a sulfonate group, and a quaternary ammonium group; and', 'an acrylamide-based crosslinking monomer;', 'wherein the acrylamide-based crosslinking monomer percentage in total monomers is above 44 wt %; and, 'polymerizing a homogenous solution comprising [ one of acrylic acid and methacrylic acid;', 'a solvent selected from the group consisting of chloroform, dichloromethane, dimethylacetamide, ethylene glycol dimethyl ether, N-methylpyrrolidone, and tetrahydrofuran; and', 'a catalyst selected ...

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Номер записи: 16
07-10-2021 дата публикации

METHOD AND SYSTEM FOR TREATING SALTWATER CONTAINING VOLATILE COMPOUNDS

Номер: US20210309550A1
Автор: Sparrow Benjamin, Tsin Henry
Принадлежит:

Systems, processes, and techniques for treating a saltwater contaminated with volatile compounds. The saltwater is evaporated, resulting in a gas composed of water vapor and gaseous volatile compounds. This gas is then condensed into a condensate contaminated with the volatile compounds. The contaminated condensate is biologically treated to remove those volatile compounds, producing a purified water. Latent heat released by the condensing is used to evaporate the purified water into the atmosphere in an energy efficient manner. The contaminated saltwater is accordingly evaporatively disposed of without creating an issue regarding how to manage substantial liquid water byproduct, and without emitting substantial amounts of the volatile compounds into the atmosphere. 1. A process for treating a saltwater containing volatile compounds , the process comprising:(a) evaporating the saltwater to produce a concentrated brine having a salt concentration higher than the saltwater and a first gaseous stream comprising water vapor and gaseous volatile compounds;(b) condensing at least some of the water vapor and gaseous volatile compounds to produce a contaminated condensate and to release a latent heat of condensation;(c) biologically removing at least some of the volatile compounds from the contaminated condensate to produce a purified water with a lower concentration of the volatile compounds than the contaminated condensate;(d) heating the purified water using at least some of the latent heat; and(e) evaporating at least some of the heated purified water to produce a second gaseous stream.2. The process of claim 1 , further comprising discharging into the atmosphere the second gaseous stream.3. The process of claim 2 , further comprising filtering the purified water claim 2 , wherein the filtering comprises applying at least one of microfiltration and ultrafiltration without applying reverse osmosis.4. The process of claim 3 , further comprising polishing the purified ...

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Номер записи: 17
22-09-2016 дата публикации

Removal of ammonia from ammonia-containing water using an electrodialysis process

Номер: US20160271562A1
Автор: Benjamin SPARROW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc

A process and system for removing ammonia from an aqueous ammonia solution. A first aqueous solution and the ammonia solution are flowed respectively through a first and a second separation chamber of a bipolar membrane electrodialysis (“BPMED”) stack. The first separation chamber is bounded on an anodic side by a cation exchange membrane and the second separation chamber is bounded on a cathodic side by the cation exchange membrane and on an anodic side by a bipolar membrane. The bipolar membrane has an anion-permeable layer and a cation-permeable layer respectively oriented to face the stack's anode and cathode. While the solutions are flowing through the stack a voltage is applied across the stack that causes the bipolar membrane to dissociate water into protons and hydroxide ions. The protons migrate into the second separation chamber and react there with ammonia to form ammonium ions that migrate to the first separation chamber.

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Номер записи: 18
03-11-2016 дата публикации

Acrylamide-Based Crosslinking Monomers, Their Preparation, And Uses Thereof

Номер: US20160318013A1
Автор: Sparrow Benjamin, Yin Xiangchun, Zhou Zhongyuan
Принадлежит:

A process for preparing an acrylamide-based crosslinking monomer including reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid and methacrylic acid. 2. The crosslinked ion exchange membrane of claim 1 , wherein the ion exchange membrane is a cation exchange membrane.3. The crosslinked ion exchange membrane of claim 2 , wherein the ionic monomer is selected from the group consisting of sodium 4-vinylbenzenesulfonate claim 2 , 3-sulfopropyl acrylate potassium salt claim 2 , 2-acrylamido-2-methyl-1-propanesulfonic acid claim 2 , and 2-acrylamido-2-methyl-1-propanesulfonic acid salts.4. The crosslinked ion exchange membrane of claim 1 , wherein the ion exchange membrane is an anion exchange membrane.5. The crosslinked ion exchange membrane of claim 4 , wherein the ionic monomer is selected from the group consisting of 3-acrylamidopropyl trimethylammonium chloride claim 4 , 2-acryloyloxyethyl trimethylammonium chloride claim 4 , 2-methacryloyloxyethyl trimethylammonium chloride claim 4 , 3-methacryloylaminopropyl trimethylammonium chloride claim 4 , and vinylbenzyl trimethylammonium chloride.6. The crosslinked ion exchange membrane of claim 1 , wherein the acrylamide-based crosslinking monomer is produced by a process comprising:preparing a first solution comprising: (i) one of acrylic acid and methacrylic acid; (ii) a solvent selected from the group consisting of chloroform, dichloromethane, dimethylacetamide, ethylene glycol dimethyl ether, N-methylpyrrolidone, and tetrahydrofuran; and (iii) a catalyst selected from the group consisting of organometallic compounds, metal salts, tertiary amines, and combinations thereof;preparing a second solution by adding into and mixing with the first solution an isocyanate compound having at least two isocyanate groups, the isocyanate compound selected from the group consisting of aliphatic isocyanates, cycloaliphatic isocyanates, oligomer isocyanates, and ...

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Номер записи: 19
20-08-2015 дата публикации

Multiple effect concentration swap de-scaling system

Номер: AU2014357321A1
Автор: Benjamin SPARROW, Saqib NAVEED
Принадлежит: Saltworks Technologies Inc

A multistage thermal desalination system, together with its associated method of use, allows de-scaling of subsystems exposed to saturated saltwater by alternating the saturation stage of the process between two neighboring physical desalination stages. The desalination system is provided with at least one transfer conduit, at least one pump, and valving to permit saltwaters being desalinated by higher and lower stage desalination subsystems to be swapped. By replacing the saturated saltwater in a higher salt concentration desalination subsystem with lower salt concentration saltwater, the scaling in higher salt concentration desalination subsystem is reduced while the saturation load is placed on another of the desalination subsystems.

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Номер записи: 20
13-10-2015 дата публикации

Apparatus for compression of a stack and for a water treatment system

Номер: CA2825713C
Автор: Benjamin Stuart Sparrow, James Hing Bong Tang, Joshua Aniket Zoshi, Kyungbaek Kim
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at a modular apparatus for a water treatment system. The apparatus includes multiple internal modules that are compressively coupled to each other. Each of the internal modules includes a pair of rigid end plates located at opposing ends of the internal module, and a stack of membrane bounded compartments that are layered from one of the end plates to the other. Each of the rigid interior end plates includes an electrode, and the electrode of one of the rigid interior end plates is electrically connected to the electrode of the other of the rigid interior end plates to complete an ionic circuit through each of the internal modules. The present disclosure is also directed at a non-modular apparatus including a stack and a compression device for compressing the stack to prevent leaks. The stack includes a pair of rigid end plates located at opposing ends of the stack, a plurality of membrane bounded compartments layered between one of the rigid end plates and the other of the rigid end plates and fluid manifolds extending through the membrane bound compartments. The compression device is fixedly coupled to opposing ends of the pair of rigid end plates and includes compression members movable to compress one of the rigid end plates towards the other of the rigid end plates. The compression members are positioned to apply force to the stack in the vicinity of the fluid manifolds.

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Номер записи: 21
14-08-2013 дата публикации

Modular humidification-dehumidification apparatus for concentrating solutions

Номер: CA2818055A1
Автор: Benjamin Stuart Sparrow, Nicholas C. Roch
Принадлежит: Saltworks Technologies Inc

The present disclosure describes a modular humidification-dehumidification (HDH) apparatus and system for concentrating a solution including a plurality of internal modules coupled to each other. The plurality of internal modules includes a humidification module and a dehumidification module in gas flow communication with the humidification module. The humidification module includes humidification media facilitating evaporation of liquid from the solution to gas as the solution passes through the humidification media thereby producing a concentrated solution and a humidified gas. The dehumidification module includes a condensing heat exchanger for condensing vapour from the humidified gas.

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Номер записи: 22
28-11-2016 дата публикации

Process and system for removing ammonium from wastewater

Номер: CA2941617A1
Автор: Benjamin SPARROW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc

Methods, systems, and techniques for removing ammonium from ammonia-containing water involve using a stack that has alternating product chambers and concentrate chambers for receiving ammonia-containing water and an acidic solution, respectively, with the chambers being bounded by alternating cation exchange membranes and proton permselective cation exchange membranes. Ammonium moves from the product chambers to the concentrate chambers across the CEMs and protons move from the concentrate chambers to the product chambers across the pCEMs when the stack is in use. An electrolyzer may also be used to convert the ammonium in the concentrate chambers into nitrogen.

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Номер записи: 23
14-01-2014 дата публикации

Method, apparatus and system for concentrating solutions using evaporation

Номер: CA2821453C
Автор: Benjamin SPARROW, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at a system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air.

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Номер записи: 24
21-01-2016 дата публикации

Method and system for concentrating solutions using evaporation

Номер: AU2014218482B2
Автор: Benjamin SPARROW, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

The invention relates to a system for concentrating a solution. The system comprises a humidification device comprising humidification media and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification media facilitates evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The system further comprises a solution container in fluid communication with an outlet of the humidification device such that the concentrated solution passes into the solution container. The solution container comprises a body portion and a cone shaped portion configured to funnel the concentrated solution into a solids precipitation area. The invention also relates to a method of concentrating a solution. The method comprises flowing a solution to be concentrated along a flow path to a humidification device comprising humidification media, flowing a gas through the humidification media, flowing the solution to be concentrated through the humidification media, such that there is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas, and precipitating solids from the concentrated solution.

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Номер записи: 25
29-11-2012 дата публикации

Method, apparatus and system for concentrating solutions using evaporation

Номер: CA2821453A1
Автор: Benjamin SPARROW, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at a system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air.

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Номер записи: 26
13-08-2020 дата публикации

Method and system for treating saltwater containing volatile compounds

Номер: WO2020160669A1
Автор: Benjamin SPARROW, Henry TSIN
Принадлежит: Saltworks Technologies Inc.

Systems, processes, and techniques for treating a saltwater contaminated with volatile compounds. The saltwater is evaporated, resulting in a gas composed of water vapor and gaseous volatile compounds. This gas is then condensed into a condensate contaminated with the volatile compounds. The contaminated condensate is biologically treated to remove those volatile compounds, producing a purified water. Latent heat released by the condensing is used to evaporate the purified water into the atmosphere in an energy efficient manner. The contaminated saltwater is accordingly evaporatively disposed of without creating an issue regarding how to manage substantial liquid water byproduct, and without emitting substantial amounts of the volatile compounds into the atmosphere.

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Номер записи: 27
21-04-2015 дата публикации

Acrylamide-based crosslinking monomers, their preparation, and uses thereof

Номер: CA2858238C
Автор: Benjamin SPARROW, Xiangchun Yin, Zhongyuan Zhou
Принадлежит: Saltworks Technologies Inc

A process for preparing an acrylamide-based crosslinking monomer comprising reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid or methacrylic acid. These acrylamide-based crosslinking monomers are used in the preparation of coating compositions, adhesive compositions curable by applying thermal or radiation energy, and in the preparation of cation or anion exchange membranes.

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Номер записи: 28
14-05-2015 дата публикации

Removal of ammonia from ammonia-containing water using an electrodialysis process

Номер: CA2893708A1
Автор: Benjamin SPARROW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc

A process and system for removing ammonia from an aqueous ammonia solution. A first aqueous solution and the ammonia solution are flowed respectively through a first and a second separation chamber of a bipolar membrane electrodialysis ("BPMED") stack. The first separation chamber is bounded on an anodic side by a cation exchange membrane and the second separation chamber is bounded on a cathodic side by the cation exchange membrane and on an anodic side by a bipolar membrane. The bipolar membrane has an anion-permeable layer and a cation- permeable layer respectively oriented to face the stack's anode and cathode. While the solutions are flowing through the stack a voltage is applied across the stack that causes the bipolar membrane to dissociate water into protons and hydroxide ions. The protons migrate into the second separation chamber and react there with ammonia to form ammonium ions that migrate to the first separation chamber.

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Номер записи: 29
14-05-2015 дата публикации

Removal of ammonia from ammonia-containing water using an electrodialysis process

Номер: WO2015066811A1
Автор: Benjamin SPARROW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc.

A process and system for removing ammonia from an aqueous ammonia solution. A first aqueous solution and the ammonia solution are flowed respectively through a first and a second separation chamber of a bipolar membrane electrodialysis ("BPMED") stack. The first separation chamber is bounded on an anodic side by a cation exchange membrane and the second separation chamber is bounded on a cathodic side by the cation exchange membrane and on an anodic side by a bipolar membrane. The bipolar membrane has an anion-permeable layer and a cation- permeable layer respectively oriented to face the stack's anode and cathode. While the solutions are flowing through the stack a voltage is applied across the stack that causes the bipolar membrane to dissociate water into protons and hydroxide ions. The protons migrate into the second separation chamber and react there with ammonia to form ammonium ions that migrate to the first separation chamber.

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Номер записи: 30
01-04-2014 дата публикации

Method, apparatus and system for concentrating solutions using evaporation

Номер: CA2816746C
Автор: Benjamin Stuart Sparrow, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at a system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air.

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Номер записи: 31
08-04-2009 дата публикации

Method, apparatus and plant for desalinating saltwater using concentration difference energy

Номер: CA2649873A1
Автор: Benjamin Stuart Sparrow, James Tang, Joshua Zoshi
Принадлежит: Saltworks Technologies Inc

A method and apparatus for desalinating saltwater using concentration difference energy is disclosed. In order to desalinate saltwater that is contained within a product chamber, a drive cell is used to generate a drive voltage. The product chamber has a desalination voltage such that when a sufficient voltage is applied to the product chamber, anions and cations migrate out of the product chamber, thereby desalinating the water. The sufficient voltage, which includes the drive voltage and which is equal to or greater than the desalination voltage, is applied to the product chamber, consequently effecting desalination. Beneficially, concentration difference energy can be generated using a concentrated solution, which can be generated using, for example, solar energy.

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Номер записи: 32
12-04-2011 дата публикации

Method and system for desalinating saltwater using concentration difference energy

Номер: CA2699174C
Автор: Benjamin Stuart Sparrow, James Hing Bong Tang, Joshua Aniket Zoshi
Принадлежит: Saltworks Technologies Inc

Described herein are a method and system for desalinating saltwater using concentration difference energy. A "five stream" dialytic stack is described that can be used to desalinate saltwater at a relatively high recovery ratio. The dialytic stack may include, for example, one or more drive cells having a paired concentrate and a diluent-c chamber in ionic communication with a product chamber that is adjacent to an anion and a cation discharge chamber each filled with diluent-p. The drive cell applies a drive voltage across the product chamber, and when the drive voltage exceeds a desalination voltage of the product chamber, the saltwater in the product chamber is desalinated. The diluent-p may be at a lower ionic concentration than the diluent-c, which may be at a lower concentration than the concentrate. The relatively high concentrations of the concentrate and the diluent-c facilitate a relatively high recovery ratio, while the relatively low concentration of the diluent-p facilitates a relatively low desalination voltage. The dialytic stack may accept brine discharged from a first desalination plant and may use this brine as a source of the concentrate, diluent-c, or diluent-p. Alternatively, the dialytic stack may accept the brine as saltwater to be desalinated, and may then output desalinated brine back to the first desalination plant for further desalination. Processing the brine in the dialytic stack may decrease its volume, decreasing costs associated with treating or otherwise disposing of the brine.

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Номер записи: 33
06-04-2011 дата публикации

Method, apparatus and plant for desalinating saltwater using concentration difference energy

Номер: EP2303784A1
Автор: Benjamin Stuart Sparrow, James Tang, Joshua Zoshi
Принадлежит: Saltworks Technologies Inc

A method and apparatus for desalinating saltwater using concentration difference energy is disclosed. In order to desalinate saltwater that is contained within a product chamber, a drive cell is used to generate a drive voltage. The product chamber has a desalination voltage such that when a sufficient voltage is applied to the product chamber, anions and cations migrate out of the product chamber, thereby desalinating the water. The sufficient voltage, which includes the drive voltage and which is equal to or greater than the desalination voltage, is applied to the product chamber, consequently effecting desalination. Beneficially, concentration difference energy can be generated using a concentrated solution, which can be generated using, for example, solar energy.

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Номер записи: 34
14-11-2013 дата публикации

Method and system for desalinating saltwater using concentration difference energy

Номер: AU2010234202B2
Автор: Benjamin Stuart Sparrow, James Hing Bong Tang, Joshua Aniket Zoshi
Принадлежит: Saltworks Technologies Inc

Described herein are a method and system for desalinating saltwater using concentration difference energy. A "five stream" dialytic stack is described that can be used to desalinate saltwater at a relatively high recovery ratio. The dialytic stack may include, for example, one or more drive cells having a paired concentrate and a diluent-c chamber in ionic communication with a product chamber that is adjacent to an anion and a cation discharge chamber each filled with diluent-p. The drive cell applies a drive voltage across the product chamber, and when the drive voltage exceeds a desalination voltage of the product chamber, the saltwater in the product chamber is desalinated. The diluent-p may be at a lower ionic concentration than the diluent-c, which may be at a lower concentration than the concentrate. The relatively high concentrations of the concentrate and the diluent-c facilitate a relatively high recovery ratio, while the relatively low concentration of the diluent-p facilitates a relatively low desalination voltage. The dialytic stack may accept brine discharged from a first desalination plant and may use this brine as a source of the concentrate, diluent-c, or diluent-p. Alternatively, the dialytic stack may accept the brine as saltwater to be desalinated, and may then output desalinated brine back to the first desalination plant for further desalination. Processing the brine in the dialytic stack may decrease its volume, decreasing costs associated with treating or otherwise disposing of the brine.

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Номер записи: 35
14-10-2014 дата публикации

Method, apparatus and system for concentrating solutions using evaporation

Номер: US8857798B1
Автор: Benjamin Stuart Sparrow, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

A system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air.

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Номер записи: 36
24-04-2014 дата публикации

Acrylamide-based crosslinking monomers, their preparation, and uses thereof

Номер: WO2014059516A1
Автор: Benjamin SPARROW, Xiangchun Yin, Zhongyuan Zhou
Принадлежит: Saltworks Technologies Inc.

A process for preparing an acrylamide-based crosslinking monomer comprising reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid or methacrylic acid. These acrylamide-based crosslinking monomers are used in the preparation of coating compositions, adhesive compositions curable by applying thermal or radiation energy, and in the preparation of cation or anion exchange membranes.

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Номер записи: 37
29-11-2012 дата публикации

Method, apparatus and system for concentrating solutions using evaporation

Номер: WO2012159203A1
Автор: Benjamin SPARROW, Henry TSIN, Hojung Kim, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc.

The present disclosure is directed at a system, apparatus and method for concentrating a solution. The system includes a humidification device and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification device includes humidification media to facilitate evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The method includes flowing a solution to be concentrated along a flow path to a humidification device including humidification media, flowing a gas through the humidification media, and flowing the solution to be concentrated through the humidification media. There is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The solution to be concentrated may be salt water and the gas may be air.

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Номер записи: 38
06-05-2014 дата публикации

Method, apparatus and system for desalinating saltwater

Номер: CA2812825C
Автор: Benjamin Stuart Sparrow, Henry TSIN, Joshua Zoshi, Malcolm Man
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at an apparatus, method and plant for desalinating saltwater and contaminated saltwater. The apparatus comprises a stack and a manifolding assembly. The stack comprises a product chamber, a first and second concentrate chamber, an anion exchange membrane forming a boundary between the first concentrate chamber and the product chamber and a cation exchange membrane forming a boundary between the second concentrate chamber and the product chamber. The manifolding assembly comprises product and concentrate manifolding fluidly coupled to the product and concentrate chambers respectively, to convey a saltwater being desalinated to and away from the product chamber, and a concentrate to and away from the concentrate chambers. The stack may include a diluent chamber and adjacent anion or cation exchange membranes between the product chamber, diluent chamber and concentrate chamber to respectively convey anions or cations across multiple chambers. The stack may also contain a rinse chamber bounded by an anion exchange membrane to guard the stack electrodes from scaling cations. A cleaning system for cleaning the stack is also disclosed.

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Номер записи: 39
05-02-2015 дата публикации

Hybrid electrochemical softening desalination system and method

Номер: WO2015013809A1
Автор: Benjamin Stuart Sparrow
Принадлежит: Saltworks Technologies Inc.

A hybrid electrochemical water softening desalination system softens water by both electrodialytical and non-electrodialytical means before desalinating the softened water in a primary desalination subsystem. The concentrate produced as byproduct from the desalination is provided to a concentrate channel of the electrodialysis device employed, and the electrodialysis device extracts multivalent ions from the water to the concentrate channel. In some embodiments the electrodialysis device provides softened water directly to the primary desalination subsystem. In other embodiments the electrodialysis device provides electrodialytically softened water to a non-electrodialytical softening subsystem for further softening, before the softened water is supplied to the primary desalination subsystem. The arrangement integrates the concentrate disposal line of the primary desalination subsystem with the functioning of the electrodialysis device.

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Номер записи: 40
14-09-2023 дата публикации

System and process for extracting lithium from a saltwater

Номер: WO2023168539A1
Автор: Benjamin SPARROW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc.

Methods, systems, and techniques for extracting lithium from a saltwater using an electrochemical apparatus that performs the lithium extraction. The electrochemical apparatus includes a four- chamber electrochemical cell with adjacent two saltwater chambers or two adjacent lithium recovery solution chambers. Each chamber is bounded by an anion exchange membrane and either a lithium-deintercalated electrode or a lithium-intercalated electrode. The lithium deintercalated electrode and the lithium intercalated electrode may include a saltwater-impermeable and electrically conductive substrate, and respectively a porous lithium-deintercalated media and a porous lithium-intercalated media in contact with one or more surfaces of the saltwater- impermeable and conductive substrate. The lithium-deintercalated electrode absorbs lithium from the saltwater and the lithium-intercalated electrode releases lithium into the lithium recovery solution when an electrical potential is applied to the lithium-deintercalated electrode and the lithium-intercalated electrode.

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Номер записи: 41
27-09-2023 дата публикации

System and method for cleaning of a forced-circulation evaporative crystallizer

Номер: EP4247509A1
Автор: Benjamin SPARROW, Justin Donghoon LEE
Принадлежит: Saltworks Technologies Inc

A system and method for cleaning of a forced-circulation evaporative crystallizer. The crystallizer is used to produce salt solids and includes a circulation pump, a heat exchanger, a separator, and a vapor processor. Solids deposits accumulate during salt solids production within at least one of the circulation pump, heat exchanger, and separator. A solids deposits metric representative of an amount of the accumulated solids deposits is measured. The solids deposits metric is determined to deviate from a baseline by at least a cleaning threshold. Certain determinations are made based on the solids deposits metric: determining a cleaning mode and at least one of a type of cleaning solution and a duration for which at least one of the circulation pump, heat exchanger, and separator is to be cleaned. At least one of the circulation pump, heat exchanger, and separator is then cleaned in accordance with those determinations.

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Номер записи: 42
25-01-2024 дата публикации

System and process for recovering lithium from a saltwater

Номер: WO2024016080A1
Автор: Benjamin SPARROW, Megan LOW, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc.

A method and system for recovering lithium from a saltwater. Lithium in the saltwater is extracted by applying a first direct lithium extraction process to produce a first lithium recovery solution having a mass ratio of lithium content to total dissolved solids content of at least 0.01, which is then concentrated by applying reverse osmosis to produce a reverse osmosis concentrate. Lithium in the concentrated first lithium recovery solution is then extracted by applying a second direct lithium extraction process to produce a second lithium recovery solution having a mass ratio of lithium content to total dissolved solids content of at least 0.04. Battery grade lithium carbonate can be produced from the second lithium recovery solution.

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Номер записи: 43
23-07-2014 дата публикации

Method, apparatus and system for desalinating saltwater

Номер: EP2755923A1
Автор: Benjamin SPARROW, Henry TSIN, Joshua Zoshi, Malcolm Man
Принадлежит: Saltworks Technologies Inc

The present disclosure is directed at an apparatus, method and plant for desalinating saltwater and contaminated saltwater. The apparatus comprises a stack and a manifolding assembly. The stack comprises a product chamber, a first and second concentrate chamber, an anion exchange membrane forming a boundary between the first concentrate chamber and the product chamber and a cation exchange membrane forming a boundary between the second concentrate chamber and the product chamber. The manifolding assembly comprises product and concentrate manifolding fluidly coupled to the product and concentrate chambers respectively, to convey a saltwater being desalinated to and away from the product chamber, and a concentrate to and away from the concentrate chambers. The stack may include a diluent chamber and adjacent anion or cation exchange membranes between the product chamber, diluent chamber and concentrate chamber to respectively convey anions or cations across multiple chambers. The stack may also contain a rinse chamber bounded by an anion exchange membrane to guard the stack electrodes from scaling cations. A cleaning system for cleaning the stack is also disclosed.

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Номер записи: 44
21-04-2022 дата публикации

Method and system for desalinating a saltwater using a humidifier unit

Номер: US20220119279A1
Автор: Benjamin SPARROW, Henry TSIN, Justin Donghoodn Lee, Ross COLEMAN
Принадлежит: Saltworks Technologies Inc

Methods, systems, and techniques for desalinating a saltwater using a humidifier unit. The humidifier unit has a housing, which has a carrier gas inlet and a saltwater inlet. The humidifier unit also includes a packing, within the housing, having a surface with a critical surface tension of less than 25 mN/m according to the Zisman method. The packing is arranged to facilitate a saltwater that enters the housing through the saltwater inlet and a carrier gas that enters the housing through the carrier gas inlet to contact each other. The contact facilitates evaporation of the saltwater, which produces salt solids on at least a surface of the packing, a humidified gas and a concentrated brine.

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Номер записи: 45
01-12-2023 дата публикации

Sistema y método de limpieza de un cristalizador evaporativo de circulación forzada

Номер: CL2023001404A1
Автор: Benjamin SPARROW, Justin Donghoon LEE
Принадлежит: Saltworks Tech Inc

Sistema y método para la limpieza de un cristalizador evaporativo de circulación forzada. El cristalizador se utiliza para producir sólidos salinos e incluye una bomba de circulación, un intercambiador de calor, un separador y un procesador de vapor. Los depósitos de sólidos se acumulan durante la producción de sólidos salinos en, al menos, una de las bombas de circulación, el intercambiador de calor y el separador. Se mide una métrica de depósitos de sólidos representativa de una cantidad de depósitos de sólidos acumulados. Se determina que la métrica de depósitos de sólidos se desvía de una línea de base en, al menos, un umbral de limpieza. A partir de la métrica de los depósitos de sólidos, se realizan ciertas determinaciones: se determina un modo de limpieza y al menos uno de los tipos de solución de limpieza y la duración de la limpieza de, al menos, una de las bombas de circulación, el intercambiador de calor y el separador. A continuación, al menos una de las bombas de circulación, el intercambiador de calor y el separador se limpian de acuerdo con dichas determinaciones.

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Номер записи: 46
02-03-2023 дата публикации

Crystallization of salts from high pressure reverse osmosis concentrate

Номер: US20230065608A1
Автор: Benjamin SPARROW, Megan LOW
Принадлежит: Saltworks Technologies Inc

Zero liquid discharge systems, processes, and techniques for treating a saltwater without evaporative crystallization. The saltwater is treated by a fluidic circuit comprising a high-pressure reverse osmosis (“HPRO”) unit configured to operate at a hydraulic pressure of at least 1,500 psi, a cooling crystallizer, and a solids-liquid separator. The saltwater is first concentrated by the HPRO unit to produce an HPRO brine, which is subsequently cooled to a designated crystallization temperature by the cooling crystallizer. The cooling crystallizer crystallizes salt crystals from the cooled HPRO brine and produces a salt-diminished brine. The solids-liquid separator separates the salt-diminished brine from the salt crystals. The salt-diminished brine from the solids-liquid separator is returned to the HPRO unit for further treatment, which allows additional salts to be crystallized from the returned salt-diminished brine.

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Номер записи: 47
10-09-2021 дата публикации

Crystallization of salts from high pressure reverse osmosis concentrate

Номер: CA3169028A1
Автор: Benjamin SPARROW, Megan LOW
Принадлежит: Saltworks Technologies Inc

Zero liquid discharge systems, processes, and techniques for treating a saltwater without evaporative crystallization. The saltwater is treated by a fluidic circuit comprising a high-pressure reverse osmosis ("HPRO") unit configured to operate at a hydraulic pressure of at least 1,500 psi, a cooling crystallizer, and a solids-liquid separator. The saltwater is first concentrated by the HPRO unit to produce an HPRO brine, which is subsequently cooled to a designated crystallization temperature by the cooling crystallizer. The cooling crystallizer crystallizes salt crystals from the cooled HPRO brine and produces a salt-diminished brine. The solids-liquid separator separates the salt-diminished brine from the salt crystals. The salt-diminished brine from the solids-liquid separator is returned to the HPRO unit for further treatment, which allows additional salts to be crystallized from the returned salt-diminished brine.

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Номер записи: 48
03-05-2018 дата публикации

Controlled produced water desalination for enhanced hydrocarbon recovery

Номер: WO2018076115A1
Автор: Benjamin SPARROW, Malcolm Man, Xiangchun Yin
Принадлежит: Saltworks Technologies Inc.

ABSTRACT Processes, systems, and techniques for treating produced water drawn from a subterranean formation. The produced water is provided and contains dissolved solids and magnesium, calcium, and sodium ions. The produced water is desalinated using an electrically-driven membrane separation apparatus that includes alternating anion exchange membranes and cation exchange membranes defining opposing sides of alternating product and concentrate chambers. The desalinating involves flowing the produced water through the product chamber, flowing a second water through the concentrate chamber, and applying an electric potential across the cation and anion exchange membranes as the produced and second waters flow through the product and concentrate chambers, respectively. The product water is consequently produced and has a total dissolved solids content of between 300 mg/L and 8,000 mg/L, a total concentration of calcium ions and magnesium ions less than 100 mg/L, and a sodium adsorption ratio of 20 to 90.

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Номер записи: 49
30-05-2017 дата публикации

Acrylamide-based crosslinking monomers, their preparation, and uses thereof

Номер: US09662647B2
Автор: Benjamin SPARROW, Xiangchun Yin, Zhongyuan Zhou
Принадлежит: Saltworks Technologies Inc

A process for preparing an acrylamide-based crosslinking monomer including reacting in the presence of a catalyst an isocyanate compound containing at least two isocyanate groups with one of acrylic acid and methacrylic acid.

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Номер записи: 50