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JP2021165688A |
To provide a draining system of light water of room temperature for removing tritium-containing water (T2O, THO,TDO), by directly freezing the tritium-containing water from a tank storing a large amount of the light water with the tritiu...
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JP6935282B2 |
To provide an oxygen isotope substitution method and an oxygen isotope substitution device, capable of effectively introducing any oxygen isotope into inside of carbon monoxide at any ratio, and obtaining desired carbon monoxide stable i...
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JP6933842B2 |
Water is separated into deuterium-depleted water having a low deuterium concentration and deuterium-enriched water having a high deuterium concentration easily and at low cost. A method for separating water into deuterium-depleted water ...
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JP6925379B2 |
A process for isolating 17O from water and a process for concentrating 17O by using the same are provided. The process for isolating 17O from water includes: mixing 17O-containing water with formaldehyde to prepare an aqueous formaldehyd...
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JP6920060B2 |
Methods for isolating Pb and/or Pb isotopes from various sources are provided. Compositions comprising Pb and/or Pb isotopes free of certain amounts of various contaminants are also provided.
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JP6913786B1 |
To provide a stable isotope enrichment method capable of efficient enrichment by reducing equipment cost and power without prolonging the start-up time. This is a method for separating stable isotopes using a plurality of cascade-connect...
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JP6913772B2 |
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JP6901141B2 |
To provide a technique for efficiently separating tritium water from water to be treated containing tritium water.Disclosed is a method for separating tritium water from water to be treated by bringing the water to be treated containing ...
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JP6902070B2 |
To provide a carbon monoxide stable isotope concentration apparatus capable of highly concentrating and obtaining 13C16O in a high yield.A carbon monoxide stable isotope concentration apparatus for concentrating carbon monoxide stable is...
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JP6902091B2 |
The invention is related to the production of oxygen-18 for positron-emission tomography. Oxygen-18 enriched water is obtained using a water fractionation method, under vacuum conditions, in packed columns. The production installation co...
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JP6889644B2 |
To provide an oxygen isotope substitution method and an oxygen isotope substitution device, capable of effectively introducing any oxygen isotope into inside of carbon monoxide at any ratio, and obtaining desired carbon monoxide stable i...
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JP6890311B2 |
To provide a molybdenum absorber of pseudo-boehmite alumina having a higher Mo absorption amount than medical alumina used for currentMo/Tc generators and having a mixed phase of χ and γ and capable of recovering Mo which is absorbed a...
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JP6873860B2 |
To provide an isotope separation device that is further miniaturized and reduced in processing cost, and to provide an isotope separation method.An isotope separation device 10A includes: atomization means 11 for spraying liquid containi...
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JP6869846B2 |
To provide a multiple reflection cell and an isotope concentrator for preventing a generation gas generated by a photoreaction from being diluted by pyrolysis of a sample gas at a reflection surface of a concave surface mirror.The multip...
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JP6868903B2 |
A first laser beam having a first wavelength excites palladium isotopes at a ground level to a first excited level. A second laser beam having a second wavelength excites the palladium isotopes at the first excited level to a second exci...
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JP6868257B2 |
According to the present invention, water is separated into deuterium-depleted water and deuterium-concentrated water easily at low cost.Provided is a method for producing deuterium-depleted water by removing heavy water and semi-heavy w...
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JP6865798B2 |
To provide a carbon monoxide stable isotope concentration device where the reduction of troubles at the starting up of the device and the shortening of a starting time can be achieved by the necessary minimum depletion processing capacit...
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JP2021053529A |
To provide an adsorbent for heavy water adsorption capable of selectively adsorbing heavy water.An adsorbent for heavy water adsorption that is an adsorbent for selectively adsorbing heavy water contains amylose.SELECTED DRAWING: None
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JPWO2020085046A1 |
At the Fukushima Daiichi Nuclear Power Station, a large amount of radioactive (tritium) contaminated water was generated due to the core meltdown accident, but even now that the prevention of groundwater contamination has been completed,...
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JP6828091B2 |
The present disclosure relates to a method for separating a carbon isotope and a method for concentrating a carbon isotope using the same, the method for separating a carbon isotope including: cooling a formaldehyde gas to a temperature ...
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JP6819954B2 |
To provide a molybdenum absorber of bayerite alumina having a higher Mo absorption amount than medical alumina used for currentMo/Tc generators and having a mixed phase of χ and γ and capable of recovering Mo which is absorbed at once,...
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JP6818342B2 |
To provide a molybdenum absorber of gibbsite alumina having higher Mo absorption amount than medical alumina used for currentMo/Tc generators and having a mixed phase of χ and γ and capable of recovering Mo which is absorbed at once, a...
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JP6773424B2 |
To provide an isotope separator and an isotope separation method capable of efficiently separating isotope water from water containing the isotope water and light water.An isotope separator 50 comprises: a separation vessel 11; a liquid ...
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JP2020056763A |
To solve the problem that a fundamental treatment method has not been devised although various treatment methods for radioactive contaminated water in an operation and waste furnace of a nuclear reactor have been devised.Tritium is separ...
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JP6675562B2 |
To provide an absorbing material to separate tritium from heavy water. By using a deuterium ion- or hydrogen ion-containing manganese oxide having a spinel-type crystal structure as a tritium absorbing material collecting tritium from he...
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JP6666612B2 |
The purpose of the present invention is to recover tritium at low cost from a tritium-containing manganese oxide and reuse said manganese oxide. Tritium is recovered by evaporation from a tritium-containing manganese oxide, and lithium i...
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JP6659668B2 |
Utilizing the fact that a predetermined adsorbent adsorbs light water at an initial desorption rate higher than heavy water and semi-heavy water, deuterium depleted water having a reduced concentration of heavy water and semi-heavy water...
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JP2020008431A |
To provide a tritium contamination water treatment system capable of surely separating tritium from tritium contamination water to completely remove the tritium from the tritium contamination water.A tritium contamination water treatment...
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JP2020003438A |
To generate hydrogen through steam reforming reaction and additionally treat tritium.A mixture gas of hydrogen (H) and tritium gas (HT) with carbon dioxide (CO) removed is generated by pressurizing and heating tritium contaminated water ...
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JP2019219423A |
To provide a contaminated water processing device for suitably removing harmful substances from contaminated water using an ultraviolet lamp, and a contaminated water processing system.A contaminated water processing device 4 includes a ...
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JP6623352B2 |
Provided is an industrially feasible method for separating tritiated water from light water. The method comprises: a step of removing tritiated water and heavy water from light water by adding heavy water to a liquid mixture containing t...
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JP6606522B2 |
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JP2019155248A |
To provide: a tritium separation and immobilization agent for separating tritium from an aqueous solution containing tritium and immobilizing it; and a tritium separation and immobilization method using the same.The tritium separation an...
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JP6572223B2 |
A method for separating water into light water, and heavy water and semi-heavy water, comprising an adsorption step of supplying water vapor to a predetermined adsorbent (2) at pressure at which heavy water and semi-heavy water are adsor...
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JP6564371B2 |
Systems for filtering water according to its isotopic forms. In some embodiments, a stream of water, such as a waste stream of water from a nuclear power plant, comprising at least two distinct isotopic forms of water may be directed int...
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JP2019093312A |
To provide a compact isotope separation device having high isotope separation efficiency, an isotope separation system and an isotope separation method.An isotope separation device includes: a container 1 storing a liquid 1a containing i...
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JP2019072669A |
To provide an isotope separating device having a high-exciting ionization efficiency for a radioisotope element.An isotope separating device includes: a placing part on which a metal to be measured is placed; and a laser source for radia...
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JP2019035735A |
To provide a processing method allowing a large amount of contaminated water including tritium to be reduced to a practical use level.A tritium-water including contaminated water is absorbed by a water-absorbing polymer as necessary in t...
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JP2019000847A |
To provide a method, a device and a system for separation or concentration of one or more kinds of isotopes from an isotope molecule mixture.A method for separation of an isotope molecule mixture includes: a process in which a fluid flow...
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JP6425958B2 |
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JP6419470B2 |
To provide a method and an apparatus for an electrolytic treatment which enables continuous electrolysis of an electrolytic solution prepared by adding alkali water to raw material water containing alkali metal ions and alkaline earth me...
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JP2018140378A |
To provide new method, device and so on for separating deuterium.A reaction treatment part 12 causes reaction of graphene and a mixture gas by exposing graphene (in which carbon is two-dimensionally placed) to the mixture gas which has b...
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JP6383950B2 |
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JP6371936B2 |
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JP2018114488A |
To provide a tritium adsorbing material and a tritium removal technique according to an adsorption method using the tritium adsorbing material in order to solve such a problem that tritium contaminated water storage quantity is increased...
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JP2018103165A |
To solve the problem that the storage amount of tritium-polluted water is increased since a tritium removal technique is poor from the view point of construction cost, operability, the generation amount of radioactive wastes and the like...
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JP2018069107A |
To provide a filler capable of realizing a distillation method and a distillation apparatus where a reflux ratio and the theoretical number of stages are drastically reduced and the pressure loss of a distillation tower can be reduced to...
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JPWO2016199800A1 |
Provided are a tritiated water distillation apparatus and a tritiated aqueous distillation method capable of remarkably improving the separation performance (specific volatility), reducing the number of theoretical plates to a practical ...
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JP6303238B2 |
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JP6284404B2 |
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