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JP7031263B2 |
To provide a method for more easily recovering lithium from a manufacturing process wastewater of a positive electrode material for lithium secondary battery containing lithium and aluminum, and reducing recovery cost.There is provided a...
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JP7031264B2 |
To provide a method for more easily recovering lithium from a manufacturing process wastewater of a positive electrode material for lithium secondary battery containing lithium and aluminum, and reducing recovery cost.There is provided a...
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JP2022035725A |
To produce a pure water production system which can stably feed water whose hardness content is removed to an EDI device in a system where a softening device is provided between a reverse osmosis membrane device and the EDI device.A pure...
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JP2022035422A |
To provide a water softening device which can improve water softening performance on raw water including a permanent hardness component in a water softening treatment with a water softening layer using a weakly acidic cation-exchange res...
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JP2022034116A |
To provide a water softening apparatus capable of performing regeneration treatment of a water softening tank with a weakly acidic cation exchange resin without causing softened water supply restrictions to the user.A water softening dev...
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JP7018325B2 |
To provide a wastewater treatment facility or the like that can relatively easily determine whether either a cation break or an anion break has occurred.The present invention provides a wastewater treatment facility or the like including...
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JP2022026484A |
To provide a water softening apparatus equipped with regeneration means capable of improving the regeneration efficiency of weakly acidic cation exchange resin by acidic electrolytic water generated by electrolysis and maintaining the re...
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JP2022026486A |
To provide a water softening apparatus capable of performing regeneration of a weakly acidic cation exchange resin by acidic electrolytic water generated by electrolysis at an appropriate timing.A water softening apparatus 1 is equipped ...
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JP2022015198A |
To provide a treatment method of water with hardness which can perform regeneration treatment of an ion-exchange resin at a suitable timing in treating the water with hardness having a high salt concentration.There is provided in present...
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JP7003507B2 |
To provide a recovery method of lithium capable of recovering lithium by eluting the same at high elution rate while suppressing chemical cost.There is provided a recovery method of lithium for recovering lithium from a manufacturing pro...
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JP2022014826A |
To provide a water treatment apparatus that can monitor regenerated salt at low cost.A water treatment device 10: comprising a filtration tank 22 accommodating filter material 32; a regeneration tank 23 that is connected to the filter ta...
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JP6999894B2 |
To provide a treatment method of an arsenic containing solution which can remove arsenic effectively even when other anions exist together, and to provide an arsenic recovery material.A treatment method of an arsenic containing solution ...
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JP2022508172A |
Includes a tank containing a bed of at least one fluid treatment medium, a distribution plate that separates the bed from the end of the tank, and amorphous particles with a harmonic mean diameter of 2.5-250 mm and a density of 0.57-0.99...
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JP2022013569A |
To provide a water softening device capable of regeneration of a weakly acidic cation-exchange resin with good efficiency by using an acidic electrolytic water produced in electrolysis.A water softening device 1 is assembled with a water...
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JP2022507940A |
The ion exchange membrane materials according to the present disclosure exhibit improved conductivity at low and intermediate relative humidity without sacrificing mechanical strength. Polymers are provided that include a scaffold with o...
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JP6998834B2 |
To provide a washing test device for testing washability of an ion-exchange resin by using a part of the ion-exchange resin collected from an actual machine, with less influence of a residue regenerant in piping due to reduction of a wat...
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JP2021191566A |
To start up a regenerative ion exchange apparatus quickly with low elution.A method for producing pure water involves alternating between an operating state in which treated water is treated in an ion exchange apparatus 2A filled with re...
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JP2021186698A |
To provide a device of producing purified water for pharmaceuticals, capable of controlling the proliferation of germs in a water softening unit and of easily improving the quality of the purified water for pharmaceuticals.A purified wat...
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JP2021188080A |
To provide a manufacturing method of high-purity cadmium hydroxide that becomes a starting material when manufacturing a high-purity cadmium solution.A manufacturing method of cadmium hydroxide comprises: a first pH adjustment step in wh...
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JP6971628B2 |
To provide a water treatment device which can promote adding of a recycle material.A according to one embodiment, a water treatment device has: a recycle tank that is connected to a filtration tank, which stores a filter medium and allow...
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JP6972220B2 |
The present invention provides a method for reducing the concentration of aluminum and nickel cations in a brine comprising aluminum and nickel cations. The treated brine can be used as a feedstock to membrane cell chlor-alkali process.
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JP6971630B2 |
To provide a water treatment device and a water treatment method which can prevent filtration failures.According to one embodiment, a water treatment device has: a filtration tank that stores a filter medium and allows water conduction; ...
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JP2021171709A |
To provide a cation-exchange resin that enables separation of a hardness component contained in tap water by exchange with sodium ions which suppresses a used amount of a treatment liquid for regeneration, and safely enhances a regenerat...
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JP2021171717A |
To provide a method and an apparatus for producing a refined ion exchange resin from which fine particles eluted from an ion exchange resin has been removed with a small amount of a non-aqueous solvent in a short time.A method for produc...
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JP2021171710A |
To provide a cation-exchange resin that enables separation of a hardness component contained in tap water by exchange with sodium ions which suppresses a used amount of a treatment liquid for regeneration, and enhances a regeneration rat...
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JP2021159898A |
To provide a water softening apparatus capable of suppressing the decrease in pH of the produced softened water in the water softening apparatus in which an acidic electrolytic water is used for the regeneration of a weakly acidic cation...
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JP2021133268A |
To provide a softening apparatus capable of generating soft water usable as daily water even with weakly acidic cation exchange resin, and capable of automatically regenerating and preventing adhesion a fastened substance caused by a har...
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JP6924300B1 |
To appropriately treat wastewater generated in a process of producing ultrapure water. The hardness component of wastewater after desalting generated in the desalting treatment in the ultrapure water production process is replaced with a...
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JP6910844B2 |
The purpose of the invention is to easily separate a cation exchanger and an anion exchanger and control the installation area. A condensate demineralization device 1 has: an inner cylinder 3 defining an inner-side space 6 filled with a ...
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JP6890129B2 |
Systems and methods for recovering and concentrating rare earth elements from seabed sediment deposits using seabed excavators and shipboard processing systems.
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JP6885922B2 |
Compositions, methods, devices, and systems for purifying a source liquid from a replenishment stock solution that includes stabilizing agents, such as metal ions, prior to vaporization. Certain embodiments effect the purification with a...
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JP6883501B2 |
To provide a treatment apparatus of treated water which easily removes a suspended matter when back washing is performed, and in which the suspended matter hardly remains in the treatment apparatus.A treatment apparatus of treated water ...
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JP6883567B2 |
Provided is a method of regenerating an acrylic resin (B2), comprising (A) providing a collection of particles of acrylic resin (B2) that has calculated Hansch parameter of -1.0 to 2.5, wherein one or more humic acid, one or more fulvic ...
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JP6884345B2 |
The purpose of the present invention is to provide a method for efficiently separating selenoneine from a starting material, which contains selenoneine, without using an organic solvent. The present invention relates to a method for sepa...
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JP6879698B2 |
To provide a water treatment apparatus and method capable of reducing a space required for arranging valves and regenerating a water treatment material accommodated in a treatment tower with a simple configuration and operation.A water t...
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JP2021513452A |
A method for stabilizing a virgin ion exchange resin material is provided. The method comprises cleaning the virgin ion exchange resin material with a preparation comprising a nonionic cleaning agent. The method comprises washing the vir...
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JP6873972B2 |
In an ion-exchange separation system, a single regeneration column provides for separation of anion and cation resins and the regeneration of both cation and anion resins with a very low level of cross-contamination. After regeneration m...
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JP6868612B2 |
Provided is a method of purifying water comprising (a) providing an aqueous solution (A) that has pH of 5.5 or lower and that comprises (i) one or more dissolved organic compounds in an amount of 5 mg/L or more, measured as dissolved org...
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JP6871796B2 |
To provide a water treatment apparatus and water treatment method capable of sufficiently purifying ground water.There is provided a water treatment apparatus for purifying ground water comprising a reverse osmosis unit and a water softe...
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JP2021070859A |
To provide a metal recovery method and a metal recovery device which can separate at least one of zinc and cadmium from other heavy metal from metal-containing water containing at least one of zinc and cadmium and other heavy metal even ...
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JP6867409B2 |
The present invention relates to a process for the purification of methylcobalamin, namely from iron cyanide impurities, comprising contacting a solution comprising methylcobalamin and iron cyanide anions with a strongly basic anion exch...
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JP6863849B2 |
To provide a method for removing a musty substance capable of easily removing a musty substance at a low cost and a water treatment apparatus capable of removing a musty substance.The present invention provides a method for removing at l...
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JP6857184B2 |
Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specifi...
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JP6843127B2 |
Provided is a method of regenerating an acrylic resin (B2), comprising (A) providing a collection of particles of acrylic resin (B2) that has calculated Hansch parameter of -1.0 to 2.5, wherein one or more humic acid, one or more fulvic ...
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JP2021038158A |
To provide a production method capable of producing a solid, high-purity cyclic compound or a derivative thereof at a high yield.A production method of a cyclic compound or a derivative thereof includes: an adsorption step of making a ra...
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JP2021007927A |
To enable regeneration of a water softener without enhancing an apparatus capacity and adjusting an operation in a manufacturing system of desalted water having a RO membrane device installed at the latter stage of the water softener.Con...
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JP2021003675A |
To provide an ion exchange device, and a water treatment apparatus and a water treatment method using the ion exchange device capable of detecting timing of regeneration and replacement of the ion exchange device at a low cost, and capab...
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JP6808201B2 |
To provide a method for producing a weakly-acidic aqueous hypochlorous acid solution more efficiently by reducing the loss of available chlorine when the weakly-acidic aqueous hypochlorous acid solution is produced through an ion exchang...
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JP2020195946A |
To provide a pretreatment device for an ion exchange resin which can reduce a water content simply and economically while suppressing contamination caused by an eluted metal.There is provided a pretreatment device for an ion exchange res...
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JP2020195947A |
To provide a pretreatment device for an ion exchange resin which can reduce a water content simply and economically while suppressing contamination caused by an eluted metal.There is provided a pretreatment device for an ion exchange res...
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