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JP2004148161 |
To provide a compact soft water preparing unit which does not require a solenoid valve for cation exchange resin regeneration and high-level control for regeneration.This soft water preparing unit is provided with a cation exchange resin...
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JP2004147541 |
To provide a method for purifying a sugar solution, by which a switching operation can profitably be performed with a few towers.This method for purifying the sugar solution is characterized by disposing two liquid-passing towers in each...
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JP2004136231 |
To provide a method for washing ion-exchange resins after regeneration by which the quantity of washing water used in the washing after regenerating the ion-exchange resins packed in an ion-exchange column by means of a regenerating agen...
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JP2004130175 |
To provide a method for separating a metal ion effectively from a solution of a metal complex.This metal ion separating method comprises a step of adsorbing the metal complex in a liquid onto an ion exchanger, a step of eluting the metal...
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JP2004131775 |
To provide a method for drastically reducing the discharge amount of waste solutions by selectively removing the phosphite ions accumulated in an electroless nickel plating solution, thereby making the solution reusable for the electrole...
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JP3546463 |
PURPOSE: To obtain a separation spherical inert resin having excellent sedimentation properties and easy to wash by copolymerizing a monovinyl monomer having a polyoxyalkylene group, other monovinyl monomer and a polyvinyl type crosslink...
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JP2004122015 |
To provide an interface regulation method by an ion exchange resin which rapidly locates a separation interface between an anion exchange resin layer and a cation exchange resin layer in a desired position when separating the ion exchang...
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JP3543389 |
PURPOSE: To improve the separability of two ion exchange resins from each other by locating an intermediate layer consisting of a mixture of the both ion exchange resins above the subsequent ion exchange resins to be separated and regene...
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JP2004113951 |
To provide a method and apparatus for separating an ion-exchange resin, whereby, in separating an ion-exchange resin containing suspended matters in a separation tower, the interface between an anion-exchange resin layer and a cation-exc...
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JP3541251 |
PURPOSE: To efficiently remove a hardness component in water and to shorten washing time after reproduction of a cation exchange resin, in a water softening device used for a steam generation device for household, etc. CONSTITUTION: The ...
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JP3542251 |
To prevent hard water from being sent to a device using soft water, by detecting a regeneration abnormality in its early stages and making it possible to deal with it promptly in a softening device of parallel installation. This softenin...
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JP2004098011 |
To provide a method for properly detecting an interface between an anion exchange resin and a cation exchange resin separated in a separation tower, and to provide an interface detection apparatus.The method comprises an imaging step for...
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JP2004089904 |
To easily isolate and recover an organic acid from an organic acid-adsorbed substance.Carbon dioxide at a temperature of 20°C or higher and a pressure of 1 MPa or higher is brought into contact with an organic acid-adsorbed substance (a...
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JP2004085481 |
To provide a method for cleaning a stored resin of a condensate demineralizing tower apparatus, capable of draining water to the limit, by such a prescribed amount that air will enter a resin layer, when draining the water from a condens...
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JP2004066102 |
To separate and concentrate tetraalkylammonium ions contained in photoresist waste liquid.A plurality of adsorption tanks filled with ion exchange resin adsorbing the tetraalkylammonium ions in the photoresist waste liquid are installed....
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JP2004066161 |
To provide a method by which the rapid adsorption and removal of harmful ions in a harmful ion-containing treating water can be performed by using an ion exchange resin, and the desorption of the harmful ion and the regeneration of the i...
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JP2004068182 |
To establish a technique for efficiently removing arsenic finely contained in water by a simple method without distinction of waste water/water for use, and to provide a raw material preferably used for the treatment.This arsenic-catchin...
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JP3525900 |
To solve such a problem that when water supply is interrupted in a domestic softener regeneration process, brine (regenerant) in a treatment vessel is mixed into soft water and the soft water containing brine is supplied as a soft water ...
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JP3525899 |
To solve such a problem that when water is not passed through a domestic water softening device using ion-exchange resin over a long period of time, harmless organic matter flows out from the ion-exchange resin and the softening device t...
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JP3524719 |
To elute Sb from a chelating resin with a low consumption of alkali at low cost by repeatedly eluting with a part of the supernatant or filtrate neutralized with alkali and then eluting with an acid soln. having the Sb concn. below a spe...
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JP2004041915 |
To provide a basic anion exchange resin which has a reduction in the elution of total organic carbon (TOC).The basic anion exchange resin, after being heated in an alkali solution, is washed with a water-soluble organic solvent or an aqu...
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JP2004041054 |
To provide a profitable method for purifying a sugar solution, which adopts a technique different from a countercurrent recycling technique, does not cause the problem of impurity leakage before the breakthrough of a resin, and can preve...
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JP2004045195 |
To provide a method and a device for treating condensate which can substantially reduce the frequency of regeneration and can prolong a stable treatment duration time by properly preventing a phenomenon, where peaks of CL ions appear, in...
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JP2004024987 |
To eliminate trouble caused by simultaneously changing cation and anion exchange resins when ion exchange resins packed in a mixed bed ion exchange column are changed.An anion exchange resin packed in a mixed bed ion exchange column is c...
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JP2004020417 |
To provide a filtration demineralization device capable of recovery processing of precoated type film elements of a plurality of filtration demineralization devices with different specifications by using a single precoated recovery equip...
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JP3508341 |
To obtain a method and an apparatus by which the amount (the ratio) of hydrazine in an ion-exchange resin at a condensate demineralization device after its regeneration can be measured easily, at low costs and precisely by a method where...
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JP3505912 |
To wash a drain line with raw water having a large flow rate per unit time and high pressure by implementing a priming process to extrude air and to make regeneration liquid flow down smoothly by natural dropping in a water treatment app...
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JP2003340449 |
To provide a method for treating waste water containing a tetraalkylammonium hydroxide (TMAH) by which waste water containing the tetraalkylammonium hydroxide and containing a photoresist is efficiently treated and the TMAH can be regene...
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JP2003334549 |
To facilitate the installment of a new city water softening apparatus and the transfer of an existing city water softening apparatus.A part of soft water supplied from a water softening tank 1 is diverted. The diverted soft water is supp...
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JP2003334567 |
To perform a rapid drain treatment process which can respond to load fluctuations without increasing the sludge treatment amount by the use of a flocculating agent, or the like, and makes a device compact.In the drain treating device des...
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JP2003326130 |
To provide an ion exchange scrubber for sharply reducing the amount of use of water and economical but having high gas treatment efficiency and collaterally, to make the ion exchange scrubber operable even if there is no nozzle to reduce...
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JP2003320340 |
To provide a method for solving the problems involved in treatment technique for removing harmful heavy metal elements by selectively adsorbing cadmium and the like contained in an aquatic product process residue by the help of a chelate...
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JP2003315496 |
To provide a method for regenerating an ion-exchange resin and a method for refining a regenerant used for it which make it possible to constrain the outflow of Na and Cl ions from a regenerated ion-exchange resin into treatment water to...
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JP2003311161 |
To enable the repetition of stable generation of regeneration salt water by breaking a bridge formed by solidifying dissolved residual salt without depending on the water permeability of the residual salt.A breakage supporting member 80 ...
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JP2003311266 |
To provide a small water softener which removes hardness components, such as magnesium ions and calcium ions, contained in tap water to allow soap to lather well and to relieve skin itching.The household water softener is fixed in a self...
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JP2003305474 |
To provide a water cleaning system and a water cleaning method which effectively treats water to be treated containing nitrogen compounds such as contaminated ground water and enables the miniaturization of the system.The water cleaning ...
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JP2003300068 |
To provide a water treatment apparatus which prevents the deterioration of treated water purity in the softening and the purification, etc., of the water to be treated and secures the stability of installment by lowering the height of th...
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JP2003299968 |
To improve a water treatment apparatus for softening or purifying water by passing object water through a housing part filled with a treatment material and to stabilize the installation of the apparatus by suppressing the fluidization de...
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JP2003292157 |
To provide a tank filler-transporting system for performing accurate metering by actually and efficiently metering the amount of filler to be transported and for performing metering without any errors even in the case of a small amount o...
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JP2003275605 |
To easily rapidly regenerate an ion exchanger and to extremely reduce the load of the washing of the ion exchanger after regeneration.When the contaminated ion exchanger 10 to be treated for regeneration is regenerated, it is arranged to...
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JP2003275604 |
To provide a capacity restoring method for an ion exchanger capable of effectively restoring the capacity of an anion exchanger (an anion exchange resin, an anion exchange film or the like) lowered in its capacity and hardly restored in ...
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JP2003266080 |
To provide a method for treating waste liquid from regenerated ion exchange resin which can remove colloidal- or scum-precipitates generated by neutralization of ions in a high concentration state in a compact device, and which solves pr...
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JP2003265890 |
To provide a washing machine exhibiting an enough detergency without using a detergent.The washing machine has a washing tub 2 for washing, ion exchange means 14 accommodating cation-exchange resin arranged within a water supplying chann...
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JP3473969 |
PURPOSE: To efficiently separate a polyvalnet metal ion (Fe, Cr, Zn) from a self-precipitation type coating compsn. after use and to efficiently regenerate the ion exchange resin used in the separation of the metal ion. CONSTITUTION: A p...
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JP3472658 |
To markedly restore the desalting capacity of an anion exchange resin contaminated with a polymeric org. substance containing a sulfonic acid group by bringing the anion exchange resin contaminated with the polymeric org. substance conta...
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JP2003245659 |
To provide a method for treating drain water having a high treatment capacity for an oxidizing agent such as hydrogen peroxide or the like, reducing the drain water by almost completely removing the oxidizing agent in collected water and...
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JP2003236564 |
To provide a treating method for an aqueous solution containing a metal fluoride by which an expensive metal contained in waste liquid generated by acid washing is recovered as resources, the amount of industrial wastes is reduced and an...
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JP2003236539 |
To provide a small and inexpensive water softener which is portable.The water softener includes an ion exchanger part 1 filled with an ion exchange resin 1a to carry out softening of raw water by passing the raw water, and a pump 6 to pr...
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JP2003236540 |
To provide a method of improving water quality in a desalination apparatus in which only physically sound resin particles in a granular ion exchange resin used for the desalination apparatus are used and the leakage of the fine resin or ...
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JP2003232890 |
To reduce the quantity of waste liquid generated in disposal of a used ion exchange resin.Waste sulfuric acid into which radionuclides are eluted in an elution unit 10 is fed into a waste acid chamber 40c of a sulfuric acid recovery devi...
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