Class / Patent application number | Description | Number of patent applications / Date published |
205746000 | Using membrane | 41 |
20090008268 | Process for Production of a Disinfectant Through the Electrochemical Activation (Eca) of Water, a Disinfectant Produced in this Way and the Use Thereof - A description is given of a process for the production of a disinfectant by electrochemical activation (ECA) of water, in that to the water to be disinfected is added an electrolytic solution, particularly a sodium or potassium chloride solution and the water to which the electrolytic solution has been added in the form of a dilute water/electrolytic solution is supplied with an electrical current in an electrolytic reactor with a cathode compartment having a cathode and with an anode compartment having an anode separated spatially from the cathode compartment by applying a d.c. voltage to the electrodes, in order to bring the water/electrolytic solution into a metastable state suitable for disinfection. To bring about a reliable disinfecting action of the electrochemically activated water and with high reproducibility, the invention proposes that the pH-value of the dilute water/electrolytic solution in the reactor anode compartment is controlled to a value between 2.5 and 3.5, particularly approximately 3, so that the potential of the anodic oxidation is controlled (potential-controlled anodic oxidation or PAO). The invention also relates to a disinfectant produced in this way and the use thereof. | 01-08-2009 |
20090038961 | Process and System for Treating Radioactive Waste Water to Prevent Overloading Demineralizer Systems - A process and system for treating waste water containing contaminants to prevent excessive accumulation on demineralizer media of a driver contaminate capable of such accumulation before another contaminant can reach a predetermined level of accumulation. The waste water is treated upstream of the demineralizer media with removal means for specifically removing the driver contaminant while leaving the other contaminant for subsequent removal by the demineralizer media. The amount of accumulation on the demineralizer media of the other contaminant is monitored, and the supplying of treated waste water to the demineralizer media is terminated when its accumulation reaches the predetermined level. | 02-12-2009 |
20090071843 | ELECTROLYZED WATER PRODUCING METHOD AND APPARATUS - Electrolyzed water producing method and apparatus are provided which are capable of producing electrolyzed water having a desired property irrespective of the quality of raw water supplied and the like while allowing the size and weight of the apparatus and the cost to be reduced by limiting the capacity of an electrolysis power source. The electrolyzed water producing method includes: circulating an aqueous electrolyte solution to a first electrolytic chamber of a pair of electrolytic chambers opposed to each other across an intervening ion permeable diaphragm while supplying raw water to the second electrolytic chamber; and applying a predetermined voltage to a pair of electrodes disposed in the respective electrolytic chambers with the diaphragm intervening there between, to electrolyze the raw water and the aqueous electrolyte solution, thereby producing electrolyzed water in the second electrolytic chamber. | 03-19-2009 |
20100133115 | DEVICES AND METHODS FOR ACID AND BASE GENERATION - Electrochemical devices and methods for acid and base generation are disclosed. A source of purified water is fluidly connected to at least one compartment of the device. A source of an ionic species, such as an acid or base precursor, is also provided to at least one compartment of the device. An applied electrical field promotes ion transport across selective membranes which at least partially define the compartments. The purified water may be dissociated into hydronium and hydroxyl ions in an electrolyzing compartment of the device. Acid and/or base product streams may be recovered as desired at outlets of the various compartments. In some embodiments, a bipolar membrane may be used to split water in place of the electrolyzing compartment. | 06-03-2010 |
20100243474 | Apparatus and Method for Preparing Multiple pH Water Streams - The invention provides an improved method for creating at least two flows of water from a reactor, derived from substantially pH 7 water, for various applications and having widely divergent pH readings between 2 and 14 without need for chemicals. In addition, the reactor generates said divergent flows without need of an RF or A/C generator. | 09-30-2010 |
20100252448 | PROCESS FOR PRETREATMENT OF DRINKING WATER BY USING AN ION SELECTIVE MEMBRANE WITHOUT USING ANY CHEMICALS - The process according to the invention is suitable for eliminating organic contaminations and bacterial infections in water by using only electric current without the use of external oxygen source and without adding any oxidative chemicals. According to the process when preconditioning the water contaminated with organic materials and infected with bacteria for the purpose of drinking water the water is introduced to the anode space, where the anode space and the cathode space are separated from each other by anion selective membrane, while the hydroxyl ion containing solution is circulated through the cathode space. Hydroxyl ions passing through the membrane are converted to hydroxyl radicals on the anode, which by their strong oxidative activity intensively oxidize the organic materials, resulting in the control of bacteria. | 10-07-2010 |
20110017610 | DEVICE AND PROCESS FOR BREAKING DOWN POLLUTANTS IN A LIQUID AND ALSO USE OF SUCH A DEVICE | 01-27-2011 |
20110048966 | MICROFLUIDIC DEVICE FOR ELECTROCHEMICALLY REGULATING THE PH OF A FLUID THEREIN USING SEMICONDUCTOR DOPED WITH IMPURITY AND METHOD OF REGULATING THE PH OF A FLUID IN A MICROFLUIDIC DEVICE USING THE SAME - Provided is a microfluidic device for electrochemically regulating the pH of a fluid comprising: a cathode substrate; an anode substrate facing the cathode substrate and forming a reaction chamber with the cathode substrate; and a nonconductor which forms a boundary between the portions of the cathode substrate and the anode substrate that are capable of contacting one another, wherein at least one of the cathode substrate and the anode substrate is a semiconductor doped with impurities and the other is a metal electrode. | 03-03-2011 |
20110198236 | APPARATUS AND METHOD FOR PRODUCING HYDROGEN-DISSOLVED DRINKING WATER - An apparatus for producing in the home hydrogen-dissolved drinking water that is suitable for drinking, has a high dissolved hydrogen concentration, and a long dissolved hydrogen life. A hydrogen-dissolved drinking water production apparatus includes an electrolytic cell through which water can pass for producing drinking water having a pH in a range of 2.5 to 8.5, and in particular, in a range of 5.8 to 8.5, and a dissolved hydrogen concentration of 0.1 ppm or more by supplying high-purity water having a conductivity of 50 μS/cm or less. The hydrogen-dissolved drinking water production apparatus is characterized in that the electrolytic cell includes a vertical anode chamber having a water-permeable plate-like anode electrode and a vertical cathode chamber having a plate-like cathode electrode, the anode chamber and the cathode chamber are separated by a diaphragm formed from a fluorine-based cation exchange membrane, the water-permeable plate-like anode electrode is closely adhered to the diaphragm formed from the fluorine-based cation exchange membrane, and an ion-exchange resin is filled in a space between the diaphragm and the cathode electrode. | 08-18-2011 |
20110284392 | Electrochemical Reactor - An electrochemical reactor comprises at least one electrolytic cell, each cell is divided by a membrane ( | 11-24-2011 |
20120037511 | SUPER-CAPACITOR DESALINATION DEVICES AND METHODS - A super-capacitor desalination device is described and includes a pair of terminal electrodes and at least one bipolar electrode located between the terminal electrodes. The at least one bipolar electrode has an ion exchange material disposed on opposing surfaces thereof The ion exchange material is a cation exchange material or an anion exchange material. A method for super-capacitor desalination is also provided. | 02-16-2012 |
20120055806 | METHOD FOR PURIFYING LITHIUM-CONTAINING WASTE WATERS DURING THE CONTINUOUS MANUFACTURE OF LITHIUM TRANSITION METAL PHOSPHATES - A method for continuously manufacturing lithium transition metal phosphates of the formula LiMPO | 03-08-2012 |
20120067738 | Mobile Surface Cleaner and Method for Generating and Applying an Electrochemically Activated Sanitizing Liquid Having O3 Molecules - A method and apparatus are provided for generating and applying a sanitizing liquid. The method includes moving a mobile floor cleaning device along a floor and electrochemically activating a liquid on the mobile floor cleaning device by passing the liquid through a functional generator having first and second electrode chambers that are separated by an ion exchange membrane such that the liquid activated in the first electrode chamber comprises O | 03-22-2012 |
20120234693 | APPARATUS AND METHOD FOR PRODUCING ELECTROLYZED WATER - An electrolyzed water production apparatus and method safely and simply produce electrolyzed water having a sterilizing action, having a physiologically neutral pH value, and, in addition, simultaneously with strong acidic electrolyzed water and strong alkaline electrolyzed water depending upon the structure. The electrolyzed water production apparatus has an electrolyzer tank with an end that receives or stores raw water, and a power supply. The interior portion of the electrolyzer tank is partitioned by a plurality of diaphragms into a plurality of regions. An anode and a cathode (constituting an electrode pair) are positioned on either side of the diaphragm. In a certain region of the electrolyzer tank, an anode and a cathode are arranged so as to face each other without a diaphragm sandwiched between them. When raw water for electrolysis is electrolyzed, electrolyzed water having a desired pH of a neutral range is produced during electrolysis. | 09-20-2012 |
20120267256 | INDEPENDENT PRODUCTION OF ELECTROLYZED ACIDIC WATER AND ELECTROLYZED BASIC WATER - An apparatus for the selective production of electrolyzed water is provided, wherein the apparatus allows for the production and discharge of either electrolyzed acidic water or electrolyzed basic water to be independently without the corresponding production and discharge of the other. In certain embodiments, the present invention can provide a low chloride electrolyzed acidic water or a low chloride electrolyzed basic water. | 10-25-2012 |
20130277231 | Electrolytic Apparatus and Method for Treating Water to Remove Nitrates, Phosphates, Arsenic, Molecules of High Molecular Weight, and Organic Materials - An apparatus for treating contaminated water includes an electrolytic cell and a flow directing device. The electrolytic cell includes an anode chamber, a cathode chamber, an anode, a cathode, and a membrane. The anode is in the anode chamber and the cathode is in the cathode chamber. The membrane is positioned in the electrolytic cell to maintain a pH difference between the anode chamber and cathode chamber when a voltage is applied between the anode and cathode. The contaminated water for treatment is provided with hydrogen ions at the anode and with hydroxyl ions at the cathode when the voltage is applied. The flow directing device is connected to direct the water from the anode chamber to the cathode chamber. | 10-24-2013 |
20140183058 | Methods for enhanced electrocoagulation processing using membrane aeration - Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment. | 07-03-2014 |
20150353386 | BIOELECTROCHEMICAL DEVICES FOR ENHANCED IN SITU BIOREMEDIATION - A bioelectrochemical system device may be used to enhance groundwater pollutant chemical removal or degradation. Such a bioelectrochemical system may be inserted into the environment to be remediated through a variety of techniques, such as through insertion into wells or other access points, trench insertion, direct insertion, borehole insertion, or combinations thereof. In some aspects, the bioelectrochemical system device may have a hollow-tube configuration with an outer ring anode and inner ring cathode. In further aspects, the bioelectrochemical system device may have a modular form that can be combined with multiple other modules such one or more bioelectrochemical system devices. | 12-10-2015 |
20160010222 | ELECTROCHEMICAL WATER TREATMENT SYSTEM AND METHOD | 01-14-2016 |
205747000 | With filtering | 4 |
20120234694 | ELECTROCHEMICAL CARBON NANOTUBE FILTER AND METHOD - A filtration apparatus and filtration method can be used to reduce at least one contaminant (e.g., organic molecules, ions and/or biological microorganisms) in an aqueous fluid. The filtration apparatuses and methods of the invention can separate at least one contaminant from an aqueous fluid and/or oxidize at least one contaminant. In operation, an aqueous fluid is flowed through a filtration apparatus comprising a porous carbon nanotube filter material at an applied voltage. In some embodiments, the filtration apparatus described herein can be used for dead-end filtration. In some embodiments, the filtration apparatus described herein can be used for cross-over filtration. | 09-20-2012 |
20130193002 | APPARATUS FOR PRODUCING ELECTROLYTIC REDUCED WATER AND CONTROL METHOD THEREOF - An apparatus for producing electrolytic reduced water capable of improving the sterilization performance and a control method thereof, the apparatus including an electrolytic cell configured to produce electrolytic reduced water by electrolyzing purified water that is penetrated through a reverse osmosis filter of a water purifying unit, a water storage tank configured to store the electrolytic reduced water, a sterilization electrolytic cell configured to produce sterilization water by electrolyzing reverse osmosis waste water that is discharged from the water purifying unit, and a control unit configured to perform a control operation to sterilize at least one of the water storage tank, a cork connected to the water storage tank, and a pipe that connect the water storage tank to the electrolytic cell by use of the sterilization water. | 08-01-2013 |
20160122211 | METHOD AND DEVICE TO REMOVE IONS FROM AN ELECTROLYTIC MEDIA, SUCH AS WATER DESALINATION, USING SUSPENSION OF DIVIDED MATERIALS IN A FLOW CAPACITOR - An object of the present invention is to provide a cheap and efficient method and device to remove ions from an electrolytic media, such as water desalination. | 05-05-2016 |
20160199786 | METHOD FOR MANUFACTURING ELECTRICALLY CONDUCTIVE SEPARATION MEMBRANE FOR WATER TREATMENT, SEPARATION MEMBRANE MANUFACTURED THEREBY, AND WATER TREATMENT METHOD USING SAME SEPARATION MEMBRANE | 07-14-2016 |
205748000 | Plural membranes | 15 |
20100044245 | IMMOBILIZED REDOX MEDIATORS FOR THE TREATMENT OF CONTAMINATED WATERS AND GAS EMISSIONS - The present invention relates to a treatment process applicable to degrade or transform organic and inorganic pollutants, commonly found in industrial wastewaters, contaminated aquifers and gas emissions, in which reduction or oxidation reactions (e.g. redox reactions) are involved. The treatment concept comprises reactors in which catalysts, with redox mediating properties, have been immobilized on ion exchange resins in order to improve and accelerate the transformation of priority pollutants by chemical or biological means. | 02-25-2010 |
20100065438 | Method of Operating A Capacitive Deionization Cell Using Gentle Charge - A method of operating a capacitive deionization cell using charge potentials of 1 V or less. | 03-18-2010 |
20100065439 | Method of Operating a Capacitive Deionization Cell Using a Relatively Slow Discharge Flow Rate - A method of operating a capacitive deionization cell using a relatively slow discharge flow rate. | 03-18-2010 |
20100187129 | METHOD FOR PRODUCING ELECTROLYZED WATER - A method for producing of electrolyzed water involves, using an electrolyzing apparatus for water having a structural feature of dividing an electrolyzer into an anode chamber (D) and a cathode chamber (E) by a diaphragm ( | 07-29-2010 |
20100270172 | ELECTROLYZER CELL FOR PRODUCING ACIDIC OR ALKALINE ELECTROLYZED WATER - A three-electrode electrolyzer cell is described that can produce either alkaline water or acid water, by selecting polarity and ion exchange membrane type. The cell has a middle chamber and two side electrolysis chambers bordering the middle chamber. Each of the side electrolysis chambers is separated from the middle chambers by a membrane, which is the same on both sides. Porous electrodes are placed on the electrolysis side of each membrane. The electrolysis chamber electrodes are placed next to the membranes, and they are both charged with either positive or negative polarity at the same time. The electrode in the middle chamber is charged with the opposite polarity to the electrolysis chamber electrodes. Each of the electrolysis chambers has inlets and outlets for flowing a solution to be electrolyzed through the cells. The electrolyte solution is in the middle chamber. It is not circulated, or is only circulated to replenish electrolytes or remove gases. The electrolyzer of the invention is significantly more efficient than prior art electrolyzers, when only one type of water (acid or alkaline) is required. | 10-28-2010 |
20110259760 | ELECTROLYZING SYSTEM - An electrolyzing system for electrolyzing a brine solution of water and an alkali salt to produce acidic electrolyzed water and alkaline electrolyzed water is provided. The system includes an internal chamber for receiving the brine solution and two electrolyzer cells immersed in a brine bath. Each electrolyzer cell includes an electrode, at least one ion permeable membrane supported relative to the electrode to define a space communicating between a fresh water supply and a chemical outlet into which brine enters only through the membrane. One of the electrodes is coupled to a positive charging electrical supply and the other to a negative charging electrical supply. | 10-27-2011 |
20110266159 | APPARATUS AND METHOD FOR PRODUCING ELECTROLYZED WATER - An electrolyzed water production apparatus and method safely and simply produce electrolyzed water having a sterilizing action, having a physiologically neutral pH value, and, in addition, simultaneously with strong acidic electrolyzed water and strong alkaline electrolyzed water depending upon the structure. The electrolyzed water production apparatus has an electrolyzer tank with an end that receives or stores raw water, and a power supply. The interior portion of the electrolyzer tank is partitioned by a plurality of diaphragms into a plurality of regions. An anode and a cathode (constituting an electrode pair) are positioned on either side of the diaphragm. In a certain region of the electrolyzer tank, an anode and a cathode are arranged so as to face each other without a diaphragm sandwiched between them. When raw water for electrolysis is electrolyzed, electrolyzed water having a desired pH of a neutral range is produced during electrolysis. | 11-03-2011 |
20120255873 | APPARATUS AND METHOD FOR PRODUCING ELECTROLYTIC REDUCING WATER - An apparatus for producing electrolytic reducing water with excellent reducing ability and a pH that is maintained neutral by combining advantages of a conventional water purifier and a conventional alkaline ionized water device. | 10-11-2012 |
20120255874 | IONIZED WATER PRODUCTION METHOD AND PRODUCTION DEVICE - An energy-saving ionized water production device and a production method are provided that are capable of producing strongly alkaline ionized in a short period of time. | 10-11-2012 |
20140076740 | APPARATUS AND METHOD FOR ELECTROCHEMICAL MODIFICATION OF LIQUIDS - An apparatus for electrochemical modification of liquid streams employing an electrolytic cell which includes an anode compartment defined by an anode structure where oxidation is effected, containing a liquid electrolyte anolyte, and a cathode compartment defined by a cathode structure where reduction is effected containing a liquid electrolyte catholyte. In addition, the electrolytic cell includes at least one additional compartment arranged at least partially between the anode compartment and the cathode compartment and separated from the anode compartment and the cathode compartment by a separator structure arranged to supports ionic conduction of current between the anode structure and the cathode structure. | 03-20-2014 |
20140374274 | Water Desalination/Purification and Bio-Agent Preconcentration by Ion Concentration Polarization - Between two juxtaposed similar ion exchange membranes (AEMs or CEMs), an ion depletion zone (d | 12-25-2014 |
20150298998 | EFFICIENT TREATMENT OF WASTEWATER USING ELECTROCHEMICAL CELL - An efficient method and system for the electrochemical treatment of waste water comprising organic and/or inorganic pollutants is disclosed. The system comprises at least first and second solid polymer electrolyte electrolytic cell stacks in which each cell comprises a solid polymer, proton exchange membrane electrolyte operating without catholyte or other supporting electrolyte. The first and second stacks differ either in construction or operating condition. The cell stack design and operating conditions chosen provide for significantly greater operating efficiency. | 10-22-2015 |
20150344332 | ELECTROCHEMICAL SEPARATION SYSTEMS AND METHODS - Systems and methods for treating water may involve a first electrochemical separation module that includes at least one ion exchange membrane having a first set of performance characteristics, and a second electrochemical separation module that includes at least one ion exchange membrane having a second set of performance characteristics that is different than the first set of performance characteristics. Performance characteristics may relate to at least one of water loss, electrical resistance, and permselectivity. Staged treatment systems and methods may provide improved efficiency. | 12-03-2015 |
205749000 | With recycle or reuse | 2 |
20140251824 | RECHARGEABLE ELECTROCHEMICAL CELLS - Provided are electrochemical devices that are rechargeable, where the regeneration techniques are based on a batchwise application of current or current density to the cells, where there are a service mode where no current or current density is applied and a recharge mode where a current or current density is applied. Electrochemical and EDI systems according to the embodiments herein are suitable for deionization and/or purification of typical municipal tap quality water in applications where demand for purified, low-TDS water is intermittent. Such operations avoid the use of chemical additions for regeneration purposes. In addition the cells provided herein are amenable to small footprints for consumer and commercial applications such as: dishwashers, washing machines, coffee and espresso makers, ice makers, steam tables, car wash water sources, and steamers. | 09-11-2014 |
20150329384 | RECHARGEABLE ELECTROCHEMICAL CELLS - Provided are electrochemical devices that are rechargeable, where an electrolyte stream whose electrolyte is electro-chemically inert is supplied to an ion concentrate compartment between a bipolar membrane and an electrode, thereby eliminating a potential for scale build-up. When strong or weak cation resins are used in a product compartment of an electrochemical device, acid water produced can be used to soak and clean an ion concentrate compartment next to an electrode, such as the cathode. | 11-19-2015 |
205750000 | Removing metal | 3 |
20110215001 | Electrochemical Removal of Arsenic - The present invention provides for a system for removing arsenic from an arsenic contaminated aqueous solution, and its use thereof. The system comprises an anode comprising iron and a cathode comprising iron or an electricity conducting metal that is electropositive relative to iron in contact with the arsenic contaminated aqueous solution. The system is used by running an electric current through the water via the anode and cathode to cause the formation of iron (hydr)oxide from the iron of the anode which then forms an insoluble arsenic-iron (hydr)oxide complex which can be separated from the aqueous solution. | 09-08-2011 |
20150122668 | Apparatuses and Methods for Conditioning Water, and Systems and Processes Incorporating Same - A water conditioner that utilizes ionic flow and selective ionic filtering to control water hardness and/or pH. In some embodiments, the water conditioner includes one or more conditioning cells each having electrodes and a cathode side and an anode side separated by an ion-selective filter. The ion-selective filter is design/configured/selected to pass alkaline earth metal cations and block corresponding carbonate anions. When the electrodes are energized and water is present on the cathode and anode sides of the filter membrane, the alkaline earth metal cations pass from the anode side to the cathode side through the membrane, while the membrane blocks carbonate ions on the cathode side from passing to the anode side. In this manner, alkaline earth metal cations, and water hardness, can be reduced in the anode flow. | 05-07-2015 |
20150321930 | SYSTEMS AND METHODS FOR TREATING HEAVY METAL WASTEWATER - Methods for treating wastewater containing one or more heavy metals are disclosed. The methods can include providing a fuel cell, the fuel cell including: an anode having a catalyst; a cathode electrically coupled to the anode; and an ion-exchange membrane disposed between the anode and the cathode. The methods may also include contacting a fuel to the anode to oxidize the fuel and contacting the wastewater to the cathode to reduce at least a portion of the heavy metals in the wastewater. The methods for treating wastewater may advantageously provide an efficient means for treating the wastewater while producing electricity. Systems for treating wastewater are also disclosed. | 11-12-2015 |