Class / Patent application number | Description | Number of patent applications / Date published |
204630000 | Ion selective | 60 |
20080245668 | Parking a Sample Stream and Suppressing the Sample - Pretreatment method and apparatus to remove matrix ions from a liquid sample, prior to separation of the sample analytes (e.g. by chromatography), by flowing the liquid sample into a sample compartment and stopping the flow. The sample compartment has a wall comprising an ion exchange membrane having exchangeable ions of the same charge as the matrix ions to be removed. A regenerant liquid stream flows through a regenerant flow compartment on the other side of the membrane from said parked liquid sample. Matrix ions in the parked liquid sample are transported across the membrane into the regenerant flow compartment. Suppression may be performed electrolytically and/or chemically. A concentrator column may also be used. | 10-09-2008 |
20090152117 | Electrodialysis apparatus, waste water treatment method and fluorine treatment system - An electrodialysis apparatus includes an anode chamber ( | 06-18-2009 |
20090308752 | Electrochemical Pump - The invention provides electrochemically-based methods and devices for producing fluid flow and/or changes in fluid pressure. In the methods and devices of the invention, current passes through a divided electrochemical cell. Adjacent compartments of the cell are divided by an ionically conducting separator. Each compartment includes an electrode and an electrolyte solution or ionic liquid. The electrolyte solution(s) or ionic liquid(s) and the ionically conducting separator are selected to obtain the desired relationship between the current through the cell and the fluid flowrate and/or change in fluid pressure. | 12-17-2009 |
20120118741 | Integrated Electronic Device and Methods of Making the Same - An integrated electronic device, and its method of manufacture, are provided. The integrated electronic device can include Iontophoresis electrodes that are electrically coupled to a thin printed flexible electrochemical cell. In one example, the Iontophoresis electrodes and the electrochemical battery are provided on a single substrate. In one example method of manufacture, the entire cell can be made on a printing press to integrate the battery directly with the electronic assembly of the Iontophoresis electrodes. | 05-17-2012 |
20120118742 | Techniques for Promoting Current Efficiency in Electrochemical Separation Systems and Methods - An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system. | 05-17-2012 |
20120199486 | Ion-Selective Capacitive Deionization Composite Electrode, and Method for Manufacturing a Module - Provided are a CDI electrode and a method for manufacturing a module using the same. A composite electrode manufactured by the manufacturing method of the present invention can manufacture a CDI electrode capable of increasing adsorption efficiency and rate of ions and selectively adsorbing cation and anion, thereby simply and inexpensively manufacturing the CDI electrode module without using a cation-exchange membrane and an anion-exchange membrane. | 08-09-2012 |
20130008795 | ELECTROPHORESIS APPARATUS - An electrophoresis apparatus for measuring, characterizing and/or altering a composition of a sample. The apparatus comprises an anode compartment having an anode and a cathode compartment having a cathode. The anode and cathode are spaced at a distance from one another to define an electric field having a direction along longitudinal axis, and between the anode and cathode compartments can be at least one separation compartment. Each compartment includes means for adding or removing a solution, a first dimension orthogonal to the direction of the electric field, a second dimension orthogonal to the electric field and the first dimension, and a third dimension parallel to the electric field and orthogonal to the first and second dimensions. A ratio of the first and second dimensions define an aspect ratio, at least one aspect ratio being less than one. An ion-permeable barrier is positioned between each compartment to prevent convective mixing therebetween. | 01-10-2013 |
20130256139 | FUNCTIONALIZED GRAPHENE OR GRAPHENE OXIDE NANOPORE FOR BIO-MOLECULAR SENSING AND DNA SEQUENCING - A technique for a nanodevice is provided. A reservoir is separated into two parts by a membrane. A nanopore is formed through the membrane, and the nanopore connects the two parts of the reservoir. The nanopore and the two parts of the reservoir are filled with ionic buffer. The membrane includes a graphene layer or a graphene oxide layer. The nanopore could be oxidized to graphene oxide at an inner surface. The graphene or graphene oxide in the nanopore is coated with an organic layer configured to interact with biomolecules in a different way in order to differentiate the biomolecules. The organic layer enhances resolution and motion control of the biomolecules. A time trace of ionic current is monitored to identify the biomolecules based on a respective interaction of the biomolecules with the organic layer. | 10-03-2013 |
20130284601 | METHOD FOR PREPARING AN ANION EXCHANGE MEMBRANE WITH ION EXCHANGE GROUPS AND AN APPARATUS FOR REMOVAL OF IONS - A method of preparing an anion exchange membrane with anion exchange groups. The method includes polymerizing a first monomer with a functional group selected from the pyridine derivatives with a second monomer selected from the benzene derivatives, such as styrene, to form a copolymer. The copolymer may be crosslinked with a crosslinker. The functional group of the copolymer may be functionalized to an anion exchange group. | 10-31-2013 |
20130292252 | ANION EXCHANGE MEMBRANES, METHODS OF PREPARATION AND USES - The present invention provides anion exchange membranes, processes for producing same and uses thereof. The anion exchange membranes according to embodiments of the present invention achieve a desirable combination of low resistance, high permselectivity and low degree of dimensional swelling. Anion exchange membranes according to embodiments of the present invention are also cost effective. | 11-07-2013 |
20140014518 | ACTIVE COMPONENTS AND MEMBRANES FOR ELECTROCHEMICAL COMPRESSION - A compound membrane for use in electrochemical devices is disclosed. The compound membrane has of proton-conducting polymer cast in a porous media having dispersed therein at least one active ingredients. It supplies considerably improved performance data in comparison to known membranes. The compound membrane electrode can be produced by treating proton-conducting polymers with acetone to obtain polymer pulp, then sulfonating the polymer pulp, combining one or more active ingredients with the polymer pulp and casting the polymer pulp to obtain the membrane. | 01-16-2014 |
20140197032 | Anion Exchange Block Copolymers, Their Manufacture And Their Use - Selectively amino- or phosphino-functionalized block copolymers, and their preparation, for use as anion exchange membrane materials. The selectively functionalized block copolymers have at least two end blocks A each of which are substantially free of amino- or phosphino-functional groups, and have at least one interior block D which comprises on average at least one amino- or phosphino-functionalized polymer unit of formula (I) | 07-17-2014 |
20150291452 | ION EXCHANGE MEMBRANE, METHOD FOR PRODUCING SAME, AND ELECTRODIALYZER - Provided is an ion exchange membrane including an ionic vinyl alcohol polymer having a cation exchange group or an anion exchange group. The ion exchange membrane | 10-15-2015 |
20150368125 | TECHNIQUES FOR PROMOTING CURRENT EFFICIENCY IN ELECTROCHEMICAL SEPARATION SYSTEMS AND METHODS - An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system. | 12-24-2015 |
20160145124 | APPARATUS FOR TREATING A FLUID - Apparatus for treating a fluid, which comprises at least one pair of electrode layers power supplied to different polarities, delimiting between them a passage chamber for a first fluid flow containing ionized particles and exerting hydraulic pressure on at least one surface of such electrode layers. Each electrode layer comprises a metal conduction layer electrically connected to a power supply and at least one layer of graphite having a wet surface directed towards the passage chamber and a dry surface compressed, by the hydraulic pressure exerted by the first fluid contained in the passage chamber, directly in adherence against the metal conduction layer, in order to distribute the current of the power supply from the metal conduction layer to the layer of graphite. | 05-26-2016 |
204631000 | With bipolar membrane | 6 |
20100096269 | ELECTRODEIONIZATION APPARATUS - An electrodeionization apparatus has a cathode and an anode, and has alternately formed therebetween concentrating chambers and desalination chambers by alternately arranging a plurality of anion exchange membranes and cation exchange membranes, each of the concentrating chambers being provided with a bipolar membrane to partition the interior of the concentrating chamber into a cathode side and an anode side, and each of the desalination chambers being divided into at least two layers including a first layer and a second layer, from an upstream side in a direction of flow of water to be treated, and being filled with an ion exchanger comprising an anion exchanger and a cation exchanger. The ion exchanger filling the first layer contains no less than 50 vol % of the cation exchanger, while the ion exchanger filling the second layer contains over 50 vol % to 80 vol % of the anion exchanger. As a result, the electrodeionization apparatus can be stably operated for a prolonged period of time while preventing formation of scale in the concentrating chambers and desalination chambers. | 04-22-2010 |
20110042218 | CARTRIDGE HAVING TEXTURED MEMBRANE - A cartridge for an ion exchanging electrochemical cell, the cartridge comprising at least one spiral wound, textured, bipolar ion exchange membrane having (i) an anion exchange layer abutting a cation exchange layer with continuous contact between the anion exchange layer and the cation exchange layer; and (ii) an exposed textured surface having a pattern of texture features. A method of manufacturing a cartridge for an ion exchange electrochemical cell comprises winding the textured, bipolar ion exchange membrane into a spiral wound membrane. | 02-24-2011 |
20120152747 | HIGH-PRESSURE ELECTRODIALYSIS DEVICE - An apparatus for performing electrodialysis at pressures greater than or equal to the ambient pressure is described. The apparatus includes an electrodialysis membrane stack and housing. The electrodialysis membrane stack includes at least one electrodialysis cell. The electrodialysis apparatus includes electrodes that apply voltage across the electrodialysis stack. The housing pressurizes the electrodialysis stack at a stack pressure. The housing includes a cell chamber that receives the electrodialysis stack, the cell chamber including at least one pressurization port communicating with the cell chamber such that a portion of electrode solution is transmittable into a region of the cell chamber outside the electrodialysis stack. A system for performing electrodialysis at pressures greater than ambient pressure includes at least two solution loops, an electrode solution loop, and an electrodialysis apparatus operatively connected to the solution and electrode solution loops that performs electrodialysis at a stack pressure that is greater than ambient pressure. | 06-21-2012 |
20130015071 | MODIFIED SULFONATED BLOCK COPOLYMERS AND THE PREPARATION THEREOFAANM Willis; Carl L.AACI HoustonAAST TXAACO USAAGP Willis; Carl L. Houston TX US - Described herein are modified sulfonated block copolymers which comprise at least two polymer end blocks A and at least one polymer interior block B, wherein each A block contains essentially no sulfonic acid or sulfonate functional groups and each B block comprises sulfonation susceptible monomer units and, based on the number of the sulfonation susceptible monomer units, from about 10 to about 100 mol % of a functional group of formula (I) | 01-17-2013 |
20140042029 | SYSTEM FOR RINSING ELECTRODIALYSIS ELECTRODES - A system for rinsing electrodialysis electrodes includes an anode input coupled to an anode of an electrodialysis (ED) system for receiving a first fluid from the anode. The first fluid is for removing ions from the anode. The system also includes an anode output coupled to the anode of the ED system for providing the first fluid to the anode. The system includes a cathode input coupled to a cathode of the ED system for receiving a second fluid from the cathode. The second fluid is for removing ions from the cathode of the ED system. The system also includes a cathode output coupled to the cathode of the ED system for providing the second fluid to the cathode. The system includes an air stripper for receiving the first and/or second fluid, and for removing oxygen and/or a chlorine gas from the first and/or second fluid. | 02-13-2014 |
20140202867 | ELECTRODEIONIZATION APPARATUS FOR PRODUCING DEIONIZED WATER - Provided is an electrodeionization apparatus for producing deionized water, capable of removing or reducing a biased flow of electric current in a deionization chamber. In the electrodeionization apparatus for producing deionized water, at least one deionization treatment unit including the deionization chamber and a pair of concentration chambers adjacent to both sides of the deionization chamber is disposed between a cathode and an anode. In the deionization chamber, anion exchanger layers and cation exchanger layers are stacked in an order in which a last ion exchanger layer through which water to be treated passes is an anion exchanger layer. A bipolar membrane is formed on the cathode side of the anion exchanger layer in the deionization chamber. The anion exchange membrane of the bipolar membrane is in contact with the anion exchanger layer. | 07-24-2014 |
204632000 | And ion exchange material (e.g., suspended ion exchange resin particles, etc.) | 21 |
20090283409 | Under-sink Apparatus for Target Pharmaceutical Compound Treatment - A target compound treatment apparatus of a size capable of being mounted under a sink, the apparatus comprising a destruction zone in which an aqueous solution containing at least one target compound is exposed to a destruction agent adapted to convert the target compound into destruction byproduct; a filtration zone in which a filtration agent removes the destruction byproduct from the solution; and a flow inducer/pump adapted to cause the aqueous solution to flow through the apparatus. The destruction agent may comprise an acid, a base, an oxidizing agent, or a reducing agent. The destruction agent may be available on a surface of a solid substrate disposed within the destruction zone, or it may be available in a gaseous or liquid reagent that is admixed with the aqueous solution. The filtration agent may be comprised of an adsorption media such as activated carbon and/or other filtration means for removing destruction byproduct. The pump may be manually activated, or it may be activated by a sensor that detects a solution entering the apparatus. | 11-19-2009 |
20100108521 | METHODS AND APPARATUS FOR ELECTRODEIONIZATION - The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to minimize the fouling of the electrode chambers and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatuses. | 05-06-2010 |
20100126867 | METHOD AND APPARATUS FOR ELECTRODEIONIZATION LAYERED CHAMBERS - The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to minimize the fouling of the electrode chambers and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatuses. | 05-27-2010 |
20100140095 | ON-DEMAND INTERMITTENT HIGH PURITY WATER PRODUCTION SYSTEM - An on-demand system for intermittent high purity water production which by locating a storage tank for pre-polished water just prior to a final high purity polishing device reduces the potential for stagnant water in the system to reduce or degrade product high purity water quality and reduces the actual degradation of high purity water quality. Pre-polished water is preferably produced by reverse osmosis. Final polished water is produced by continuous electrodeionization. | 06-10-2010 |
20100326833 | APPARATUS AND SYSTEM FOR DEIONIZATION - There is provided herein a membrane package comprising a plurality of membranes, wherein said membrane package is adapted to facilitate a feed stream flow having a process stream flow wherein said hydrodynamic resistance of said feed stream flow is substantially the same as said hydrodynamic resistance of said process stream flow. | 12-30-2010 |
20110000792 | Arrangement of ion exchange material within an electrodeionization apparatus - An electrodeionization apparatus is provided comprising an ion-concentrating compartment partially bounded by an anion permeable membrane and also partially bounded by a cation permeable membrane, and a first ion exchange material domain disposed within the ion-concentrating compartment, wherein the first ion exchange material domain is contiguous with at least a portion of an ion-concentrating compartment side surface of one of the anion permeable membrane and the cation permeable membrane, and is spaced apart from the other one of the one of the anion permeable membrane and the cation permeable membrane. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is an anion permeable membrane, the first ion exchange material domain is an anion exchange material predominant domain. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is a cation permeable membrane, the first ion exchange material domain is a cation exchange material predominant domain. | 01-06-2011 |
20110005933 | METHOD FOR OPERATING ELECTRODEIONIZATION DEIONIZED WATER PRODUCING APPARATUS, ELECTRODEIONIZATION DEIONIZED WATER PRODUCING SYSTEM, AND ELECTRODEIONIZATION DEIONIZED WATER PRODUCING APPARATUS - An electrodeionization deionized water producing apparatus includes, between an anode chamber having an anode and a cathode chamber having a cathode, a desalination chamber in which a side near the anode is demarcated by an anion exchange membrane and a side near the cathode is demarcated by a cation exchange membrane, and a concentrating chamber in which a side near the anode is demarcated by a cation exchange membrane and a side near the cathode is demarcated by an anion exchange membrane, and the anode side of the anion exchange membrane is filled with an anion exchanger. In the electrodeionization deionized water producing apparatus, water containing free carbon dioxide is supplied to the concentrating chamber and formation of scales in the concentrating chamber during a continuous operation of a long period is inhibited. | 01-13-2011 |
20110005934 | Arrangement of ion exchange material within an electrodeionization apparatus - an electrodeionization apparatus is provided comprising an ion-concentrating compartment partially bounded by an anion permeable membrane and also partially bounded by a cation permeable membrane, and a first ion exchange material domain disposed within the ion-concentrating compartment, wherein the first ion exchange material domain is contiguous with at least a portion of an ion-concentrating compartment side surface of one of the anion permeable membrane and the cation permeable membrane, and is spaced apart from the other one of the one of the anion permeable membrane and the cation permeable membrane. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is an anion permeable membrane, the first ion exchange material domain is an anion exchange material predominant domain. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is a cation permeable membrane, the first ion exchange material domain is a cation exchange material predominant domain. | 01-13-2011 |
20110303544 | APPARATUS FOR FLUID PURIFICATION AND METHODS OF MANUFACTURE AND USE THEREOF - The present invention generally relates to devices able to purify fluids electrically that are contained within pressure vessels, as well as to methods of manufacture and use thereof. Liquids or other fluids to be purified enter the purification device and, under the influence of an electric field, are treated to produce an ion-depleted liquid. Species from the entering liquids are collected to produce an ion-concentrated liquid. Increasing the exterior pressure on the device may reduce the pressure difference between the interior of the device and the exterior, which may reduce manufacturing costs or simplify construction. | 12-15-2011 |
20120168313 | ELECTRODEIONIZATION DEVICE AND METHOD WITH IMPROVED SCALING RESISTANCE - An electrodeionization apparatus includes an anode compartment provided with an anode and a cathode compartment spaced from the anode compartment and provided with a cathode, wherein the anode and cathode are configured for coupling to a DC power source to effect an electric potential difference between the anode and the cathode and thereby influence transport of ionic material in liquid media and ion exchange media by the influence of the electric potential difference. The electrodeionization apparatus also includes a feed inlet receiving a feed solution, a product water outlet and a plurality of anion exchange membranes and a plurality of cation exchange membranes alternately arranged between the anode compartment and the cathode compartment. The electrodeionization apparatus also includes a plurality of spacers, wherein the spacers and the anion and cation exchange membranes are arranged to form a first diluting compartment receiving feed solution from the feed inlet, a second diluting compartment in series with the first diluting compartment and delivering product water to the product water outlet, a first concentrating compartment and a second concentrating compartment. The first and second diluting compartments are bounded by an anion exchange membrane on the side closest to the anode and by a cation exchange membrane on the side closest to the cathode. The first and second concentrating compartments are bounded by a cation exchange membrane on the side closest to the anode and by an anion exchange membrane on the side closest to the cathode. | 07-05-2012 |
20120267248 | METHOD FOR PRODUCING A SULFONATED BLOCK COPOLYMER COMPOSITION - Sulfonated block copolymer composition formed by dissolving in an aprotic polar solvent at least one sulfonated block copolymer having at least one end block A and at least one interior block B wherein each A block contains essentially no sulfonic acid or sulfonate ester functional groups and each B block is a polymer block containing from about 10 to about 100 mol % sulfonic acid or sulfonate ester functional groups based on the number of sulfonation susceptible monomer units of the B block. | 10-25-2012 |
20130068624 | ELECTRODEIONIZATION APPARATUS FOR PRODUCING DEIONIZED WATER - An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C | 03-21-2013 |
20130180858 | ELECTRIC DEVICE FOR PRODUCING DEIONIZED WATER - The present invention provides an electric device for producing deionized water comprising: desalting chamber ( | 07-18-2013 |
20130233715 | INTERNAL GAS AND LIQUID DISTRIBUTOR FOR ELECTRODEIONIZATION DEVICE - The present invention provides a resin-wafer electrodeionization (RW-EDI) apparatus including cathode and anode electrodes separated by a plurality of porous solid ion exchange resin wafers, which when in use are filled with an aqueous fluid. The apparatus includes one or more wafers comprising a basic ion exchange medium, and preferably includes one or more wafers comprising an acidic ion exchange medium. The wafers are separated from one another by ion exchange membranes. The gas and aqueous fluid are introduced into each basic wafer via a porous gas distributor which disperses the gas as micro-sized bubbles laterally throughout the distributor before entering the wafer. The fluid within the acidic and/or basic ion exchange wafers preferably includes, or is in contact with, a carbonic anhydrase (CA) enzyme or inorganic catalyst to facilitate conversion of bicarbonate ion to carbon dioxide within the acidic medium. | 09-12-2013 |
20130306482 | IONIC SPECIES REMOVAL SYSTEM - The present invention relates to an ionic species removal system comprising one or more electrode stack(s), each electrode stack including two electrodes and cation exchange membranes and anion exchange membranes alternately arranged between the two electrodes, wherein at least one electrode of at least one of the electrode stack(s) is an electrode coated with an ion exchange coating. The ionic species removal system mitigates the scaling risk by employing an electrode coated with an ion exchange coating. | 11-21-2013 |
20140014519 | ION-EXCHANGE MEMBRANE - An ion-exchange membrane including a porous unstretched polyethylene sheet in which fine pores are piercing, the pores being filled with an ion-exchange resin. | 01-16-2014 |
20140166488 | ION EXCHANGE MEMBRANES - Highly energy efficient electrodialysis membranes having low operating costs and a novel process for their manufacture are described herein. The membranes are useful in the desalination of water and purification of waste water. They are effective in desalination of seawater due to their low electrical resistance and high permselectivity. These membranes are made by a novel process which results in membranes significantly thinner than prior art commercial electrodialysis membranes. The membranes are produced by polymerizing one or more monofunctional ionogenic monomers with at least one multifunctional monomer in the pores of a porous substrate. | 06-19-2014 |
20150329386 | Coated Ion Exchange Membranes - Ion exchange membranes may include a polymeric microporous substrate, a cross-linked ion transferring polymeric layer on the substrate, and a hydrophobic coating on the cross-linked ion transferring polymer. The hydrophobic coating may comprise at least one of a weak base copolymer and an organosilicate compound. | 11-19-2015 |
20160096141 | WATER TREATMENT SYSTEM - A water treatment system ( | 04-07-2016 |
20160145125 | Layered electrodeionization device with discreet anion chamber - The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses are configured to produce purified liquids having an ion content at a level of parts-per-trillion or less, and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Specifically, the present invention relates to an electrodeionization apparatus wherein an initial input port for feed to the apparatus is placed at a location such that feed enters into an anion bed at a location in close proximity to an anion membrane. | 05-26-2016 |
20160200599 | FLEXIBLE COMPOSITE ELECTRODE FOR DESALTING, METHOD FOR MANUFACTURING SAME, AND DESALTING DEVICE USING SAME | 07-14-2016 |
204633000 | Both anion and cation selective membranes | 11 |
20100078327 | Deionization apparatus, electrode module for the same and method for manufacturing the same - In the deionization apparatus, among a pair of electrode modules to which a power is applied, only one electrode module includes an electrode capable of adsorbing ions to impart an ion-adsorption capability thereto and the other electrode module includes an electrode having no ion-adsorption capability not to impart an ion-adsorption capability thereto, to remove only one of cations and anions, in order to improve production efficiency and reduce manufacturing costs. | 04-01-2010 |
20120031763 | ELECTRODIALYZER - An object of this invention is to provide an electrodialyzer which is effective in saving electric power. According to this invention, there is provided an electrodialyzer which electrically dialyzes water to be processed while a voltage causing substantially no current to flow is applied between an anode and a cathode. | 02-09-2012 |
20140166489 | NANOENGINEERED FIELD INDUCED CHARGE SEPARATION MEMBRANES MANUFACTURE THEREOF - A device according to one embodiment includes a porous membrane having a surface charge and pore configuration characterized by a double layer overlap effect being present in pores of the membrane, where the porous membrane includes functional groups that preferentially interact with either cations or anions. A device according to another embodiment includes a porous membrane having a surface charge in pores thereof sufficient to impart anion or cation selectivity in the pores. Additional devices, systems and methods are also presented. | 06-19-2014 |
20140318972 | DESALINATION AND PURIFICATION SYSTEM - A liquid electrolyte can be desalinated and purified using a system that includes a first electrode and a configuration selected from (a) a second electrode and at least one distinct ion-selective boundary and (b) a second electrode that also serves as the ion-selective boundary. The ion-selective boundary is contained in the liquid conduit adjacent to a porous medium that defines pore channels filled with the liquid and that have a surface charge, and the charge of the ion-selective boundary and the surface charge of the pore channels share the same sign. A liquid including at least one charged species flows through the pore channels, forming a thin diffuse electrochemical double layer at an interface of the liquid and the charged surface of the pore channels. A voltage differential is applied between the electrodes across the porous medium to draw ions in the liquid to the electrodes to produce brine at the electrodes and to create a shock in the dissolved-ion concentration in the bulk volume of the liquid within the pore channels, wherein a depleted zone with a substantially reduced concentration of dissolved ions forms in the liquid bulk volume between the shock and the ion-selective boundary. | 10-30-2014 |
20160250597 | A CALCIUM ION SEPARATION DEVICE | 09-01-2016 |
204634000 | Alternating anion and cation selective membranes | 6 |
20110068008 | Method, Apparatus And Plant For Desalinating Saltwater Using Concentration Difference Energy - 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. | 03-24-2011 |
20120118743 | ELECTRICAL PURIFICATION APPARATUS - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-17-2012 |
20120118744 | ELECTROCHEMICAL SEPARATION MODULES - An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system. | 05-17-2012 |
20150122657 | ELECTRICAL PURIFICATION APPARATUS HAVING A BLOCKING SPACER - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-07-2015 |
204635000 | Tortuous path-type frame or membrane spacer | 1 |
20160009573 | Flow Distributors for Electrochemical Separation | 01-14-2016 |
204636000 | With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.) | 1 |
20110042219 | NON-FARADAY BASED SYSTEMS, DEVICES AND METHODS FOR REMOVING IONIC SPECIES FROM LIQUID - A non-Faraday ionic species removal process and system is described. The system includes a power supply, a pump for transporting a liquid through the system, and a plurality of porous electrodes. The electrodes , each include an electrically conductive porous portion. The electrodes may also include a substrate contiguous with the porous portion. The porous electrode can be utilized in electrodialysis and electrodialysis reversal systems. A method for forming a porous electrode is described. | 02-24-2011 |
204638000 | With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.) | 7 |
20090032402 | ELECTROPHORESIS DEVICE COMPRISING HOLE-CONTAINING STRUCTURE AND METHOD FOR FABRICATING THE SAME - Disclosed herein are an electrophoresis device comprising a hole-containing structure and a method for fabricating the same. By which electrophoretic particles are embedded into holes, the optical properties of the device can be controlled. The electrophoresis device includes a structure having inherent optical properties, thus realizing improvement in reliability and display quality. Since the electrophoresis device uses a gas or vacuum as a medium of the electrophoretic particles, it can be driven with a high speed. | 02-05-2009 |
20100089756 | METHOD AND APPARATUS FOR DESALINATION - A method and apparatus for purifying water are provided. A feed water such as seawater can be fed to a filter such as a microporous or nanofiltration membrane to produce a permeate that can, in turn, be fed to an electrodeionization system to produce fresh water. | 04-15-2010 |
20110162967 | ION EXCHANGE ELEMENT, SPACER COMPONENT, AND DEVICES MADE THEREFROM - A linear exchange element with functionalized polymer on a core of rope, twine or yarn has well defined physical structure and may function as a spacer or be formed into free-standing exchange elements. A screen is fabricated from such strands or strips, with a pattern of mixed, sequential or other exchange types for enhanced operation in a capture device or in an electrodialysis device. Strands possess tensile strength, enabling deionization devices of new architecture, such as fiber-wound cartridges and other packing arrangements. Bodies made of the strands may operate as walls to perform the function of an exchange membrane or bed, or may operate as spacers positioned between membranes to enhance ion capture and transport, and their properties simplify handling and regeneration. Electroseparation devices advantageously employ the open spacers to better treat food, fermentation product or other streams where high conductivity, suspended solids and fouling would otherwise present problems. “Woven” mats may be arranged so that strands of one type in a first layer possess at least some points of contact with strands of opposite type in an adjacent layer, and different strand diameter and mesh pitch or dimension may be employed for treating fluids of different viscosity or concentration to optimize treatment throughput and removal rate, or to minimize fouling or flow obstruction and otherwise extend the range of treatment parameters. | 07-07-2011 |
20130153426 | MEMBRANE ENHANCED DEIONIZATION CAPACITOR DEVICE - A membrane enhanced deionized capacitor (MEDC) device, consisting of insulating plates ( | 06-20-2013 |
20130264209 | ION EXCHANGER, METHOD OF MANUFACTURING THE SAME, AND ION EXCHANGE FILTER DEVICE AND ELECTRO-DEIONIZATION DEVICE INCLUDING THE SAME - An ion exchanger according to a non-limiting embodiment may include an open cell polymer support and a microporous polymer matrix charged within the open cell polymer support. The microporous polymer matrix includes an ion conductive polymer. The ion conductive polymer may be obtained by polymerizing monomers having at least one ion exchange functional group and at least one cross-linkable functional group with a cross-linking agent having at least two cross-linkable functional groups. | 10-10-2013 |
20130313118 | ANION EXCHANGE MEMBRANES AND PROCESS FOR MAKING - Embodiments of the present invention provide for anion exchange membranes and processes for their manufacture. The anion exchange membranes described herein are made the polymerization product of at least one functional monomer comprising a tertiary amine which is reacted with a quaternizing agent in the polymerization process. | 11-28-2013 |
20150299001 | ANION EXCHANGE MEMBRANES AND PROCESS FOR MAKING - Embodiments of the present invention provide for anion exchange membranes and processes for their manufacture. The anion exchange membranes described herein are made the polymerization product of at least one functional monomer comprising a tertiary amine which is reacted with a quaternizing agent in the polymerization process. | 10-22-2015 |