JPH07260997A - Method and device for treating radioactive waste liquid containing organic matter - Google Patents
Method and device for treating radioactive waste liquid containing organic matterInfo
- Publication number
- JPH07260997A JPH07260997A JP4678994A JP4678994A JPH07260997A JP H07260997 A JPH07260997 A JP H07260997A JP 4678994 A JP4678994 A JP 4678994A JP 4678994 A JP4678994 A JP 4678994A JP H07260997 A JPH07260997 A JP H07260997A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- radioactive
- adsorbent
- radioactive waste
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は有機物を含む放射性廃液
処理装置に係り、特に、原子力発電所などで、放射性物
質と有機物が混入する水からこれらを除去するに適した
放射性廃液処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating radioactive liquid waste containing organic matter, and more particularly to an apparatus for treating radioactive liquid waste which is suitable for removing radioactive substances and organic substances from water mixed with them in a nuclear power plant or the like.
【０００２】[0002]
【従来の技術】原子力発電所で発生する放射性廃液は、
再利用を行う際に廃液中から放射性物質を回収する必要
がある。また、有機物が入っている場合、これも取り除
く必要がある。このような有機物を含む放射性廃液の処
理法の一つとして濾過と酸化処理を組み合わせる方法が
ある。特公平1−58480号公報には、放射性洗濯廃液の処
理法として、酸化剤とアニオン性界面活性剤を廃液に添
加した後、超濾過膜によって濾過する方法が記載されて
いる。また、特開昭63−93396 号公報には、オゾンによ
り酸化処理を行い濾過を行う廃液処理法が記載されてい
る。いずれの方法においても、有機物を酸化分解し、同
時に放射性廃液中に含まれる水溶性の遷移金属イオンを
酸化物として水に不溶化し濾過による除去を行うもので
ある。2. Description of the Related Art The radioactive liquid waste generated in a nuclear power plant is
It is necessary to recover radioactive substances from the waste liquid when reusing. Also, if organic matter is contained, it must be removed as well. As one of the treatment methods for radioactive waste liquid containing such organic substances, there is a method of combining filtration and oxidation treatment. Japanese Examined Patent Publication No. 1-58480 describes a method for treating radioactive laundry waste liquid, which comprises adding an oxidizing agent and an anionic surfactant to the waste liquid and then filtering the waste liquid with an ultrafiltration membrane. Further, JP-A-63-93396 describes a waste liquid treatment method in which oxidation treatment is carried out by ozone and filtration is carried out. In either method, organic substances are oxidatively decomposed, and at the same time, water-soluble transition metal ions contained in the radioactive liquid waste are made insoluble in water as oxides and removed by filtration.
【０００３】[0003]
【発明が解決しようとする課題】上記公知例では、酸化
処理と濾過によって放射性金属を除去する。ここで、酸
化処理によって生成した金属酸化物結晶は微小であるた
め、通常の濾過ではなく、より高度な濾過方法を用いる
必要がある。超濾過膜の使用による濾過（特開平1−584
80号公報）はその例であるが、超濾過膜は逆洗が困難で
あることや水洩れの発生、超濾過膜のコストが高いとい
った欠点を持っている。また、我々の新たな知見によれ
ば、酸化分解により、廃液中の有機化合物が分解して低
分子量の有機化合物が発生する。これは超濾過を用いた
としても除去することはできない。こういった低分子量
の有機化合物を酸化分解しきってしまうには酸化剤を多
く使い、酸化反応槽での滞留時間を多くとる必要があ
る。In the above-mentioned known example, the radioactive metal is removed by oxidation treatment and filtration. Here, since the metal oxide crystals generated by the oxidation treatment are minute, it is necessary to use a more sophisticated filtration method instead of ordinary filtration. Filtration by using an ultrafiltration membrane (JP-A-1-584
No. 80) is an example, but the ultrafiltration membrane has drawbacks such as difficulty in backwashing, occurrence of water leakage, and high cost of the ultrafiltration membrane. Moreover, according to our new knowledge, the organic compounds in the waste liquid are decomposed by the oxidative decomposition to generate low molecular weight organic compounds. It cannot be removed even with ultrafiltration. In order to completely oxidize and decompose these low-molecular weight organic compounds, it is necessary to use a large amount of an oxidant and take a long residence time in the oxidation reaction tank.
【０００４】本発明の目的は、このような問題を解決す
る、経済的かつ効率的な有機物含有放射性廃液処理法お
よびその装置を提供することにある。An object of the present invention is to provide an economical and efficient method for treating a radioactive waste liquid containing organic substances and an apparatus therefor, which solves such problems.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は有機物を含む放射性廃液から清浄な処理水
を得る方法において、放射性廃液を酸化処理し、吸着剤
を加えて撹拌し、濾過によってこれを除去する。酸化剤
および吸着剤を供給する機構は、放射性廃液中の有機物
あるいは放射性物質その他の不純物濃度を測定する機構
と連動しており、不純物の濃度に応じた酸化剤あるいは
吸着剤を供給する。In order to achieve the above object, the present invention provides a method for obtaining clean treated water from a radioactive waste liquid containing organic matter, in which a radioactive waste liquid is subjected to an oxidation treatment, an adsorbent is added, and the mixture is stirred. It is removed by filtration. The mechanism for supplying the oxidizing agent and the adsorbent is linked to the mechanism for measuring the concentration of impurities such as organic substances, radioactive substances and the like in the radioactive waste liquid, and supplies the oxidizing agent or the adsorbent according to the concentration of impurities.
【０００６】[0006]
【作用】本発明の有機物を含む放射性廃液処理装置にお
いて、酸化処理によって有機物が酸化分解され、放射性
廃液中の放射能の原因である遷移金属元素のうち水に可
溶なイオンが水に不溶な金属酸化物になる。ここで、吸
着剤の添加を行うと、生成した微小な金属酸化物結晶
が、吸着剤に吸着される。また、吸着剤は、酸化分解さ
れなかった有機化合物や、超濾過などの濾過法によって
も除去することができない低分子量の有機化合物を吸着
する。以上の処理を行った放射性廃液を濾過することに
より、放射性物質や有機化合物ごと吸着剤が捕捉され
る。In the apparatus for treating a radioactive liquid waste containing the organic substance of the present invention, the organic substance is oxidatively decomposed by the oxidation treatment, and among the transition metal elements causing the radioactivity in the radioactive liquid waste, the water-soluble ions are insoluble in the water. Becomes a metal oxide. Here, when the adsorbent is added, the generated fine metal oxide crystals are adsorbed by the adsorbent. Further, the adsorbent adsorbs an organic compound that has not been oxidatively decomposed or a low molecular weight organic compound that cannot be removed by a filtration method such as ultrafiltration. By filtering the radioactive waste liquid that has been subjected to the above treatment, the adsorbent is captured together with the radioactive substance and the organic compound.
【０００７】このため、安価な濾過機構、例えば合成繊
維を濾布とした濾過でも確実な除去効果が期待できる。Therefore, a reliable removal effect can be expected even with an inexpensive filtration mechanism, for example, filtration using a synthetic fiber filter cloth.
【０００８】[0008]
【実施例】本発明の好適な実施例について以下に述べ
る。The preferred embodiments of the present invention will be described below.
【０００９】（実施例１）本発明の好適な実施例の系統
図を図１に示した。これについて以下説明する。ここで
は、放射性廃液として機器ドレンなどの一般的な低レベ
ル放射性廃液を処理し、酸化剤として過酸化水素水，吸
着剤として粉状活性炭を用いるものとする。(Embodiment 1) A system diagram of a preferred embodiment of the present invention is shown in FIG. This will be described below. Here, a general low-level radioactive waste liquid such as equipment drain is treated as the radioactive waste liquid, and hydrogen peroxide water is used as the oxidizing agent and powdered activated carbon is used as the adsorbent.
【００１０】図１の処理装置は、酸化剤タンク１，酸化
槽２，吸着剤添加槽３，濾過器４，サンプルタンク５，
復水貯蔵タンク６，放射性廃液タンク７，吸着剤タンク
８から構成されている。各構成要素をつなぐ配管系は、
放射性廃液供給系９，送液系１０，１１，１２，１３，
１７，酸化剤供給系１４，吸着剤供給系１５，濾屑送出
系１６がある。放射性廃液供給系９には酸化剤供給バル
ブ１８，廃液供給系１４には不純物濃度測定装置１９が
設けられている。送液系１０には不純物濃度測定装置２
１と送液ポンプ２２が設けられている。吸着剤供給系１
５には吸着剤の供給量を加減するための吸着剤供給バル
ブが設けられている。送液系１１には、送液ポンプ２
３，送液系１７には送液ポンプ２４とバルブ２５が設け
られている。酸化槽２と吸着剤添加槽３にはそれぞれ撹
拌装置２６と２７が設けられている。The processing apparatus shown in FIG. 1 comprises an oxidizing agent tank 1, an oxidizing tank 2, an adsorbent adding tank 3, a filter 4, a sample tank 5,
It is composed of a condensate storage tank 6, a radioactive waste liquid tank 7, and an adsorbent tank 8. The piping system that connects each component is
Radioactive waste liquid supply system 9, liquid transfer system 10, 11, 12, 13,
17, an oxidant supply system 14, an adsorbent supply system 15, and a debris delivery system 16. The radioactive waste liquid supply system 9 is provided with an oxidant supply valve 18, and the waste liquid supply system 14 is provided with an impurity concentration measuring device 19. Impurity concentration measuring device 2
1 and a liquid feed pump 22 are provided. Adsorbent supply system 1
Reference numeral 5 is provided with an adsorbent supply valve for adjusting the amount of adsorbent supplied. The liquid feed system 11 includes a liquid feed pump 2
3. The liquid feeding system 17 is provided with a liquid feeding pump 24 and a valve 25. Stirring devices 26 and 27 are provided in the oxidation tank 2 and the adsorbent addition tank 3, respectively.
【００１１】次に処理装置を用いての廃液処理法につい
て説明する。酸化槽２に放射性廃液供給系１４より放射
性廃液を送りこむ。放射性廃液中の有機物，金属その他
不純物の濃度は不純物濃度測定装置１９によって常に監
視されている。これを酸化剤供給バルブ１８と電気的に
連動させることによって、供給する過酸化水素水の量を
最小限に抑える。すなわち、不純物濃度が多いときは酸
化剤の供給量を増やし、少ないときは供給量を減らす。
これにより、酸化剤の添加量を節約でき、かつ酸化剤に
よる装置の腐食損傷を防ぐことができる。ここでは不純
物濃度測定装置は、不純物濃度を放射性廃液の光の透過
度によって測定する装置である。過酸化水素水の添加に
よって酸化槽２の内部では、有機物の酸化分解反応と酸
化による金属酸化物の生成反応が進行する。酸化処理さ
れた廃液は、送液系１０を通り吸着剤添加槽３に送られ
る。ここで、吸着剤タンク８から吸着剤供給系１５によ
り運ばれてきた粉状活性炭が加えられ、撹拌装置２７に
より撹拌される。吸着剤添加槽３では金属酸化物，酸化
分解生成物および酸化により分解されなかった有機物の
粉状活性炭表面への吸着がおこる。吸着剤供給バルブ２
０は、送液系１０に取り付けられた不純物濃度測定装置
と電気的に連動しており、放射性廃液中の不純物の濃度
に応じて粉状活性炭の供給量を変化させる。これによっ
て、加える粉状活性炭の量を必要最小限に抑えて、発生
する放射性廃棄物の量を少なくすることができる。吸着
剤添加槽３をでた廃液は送液系１１を通って濾過器４に
送られ、濾過される。濾過器４は連続運転が可能な可逆
濾過器が適当であり、濾布は合成繊維網を用いる。濾過
によって発生したスラリ状の濾屑は、濾屑送出系１６に
よって送出され、焼却減量されたのち保管される。濾液
は送液系９によってサンプルタンク１６で放射能レベル
をチェックされたのち、復水貯蔵タンク６に蓄えられ再
使用に供する。サンプルタンクで放射能レベルが高い場
合は復水貯蔵タンク６へ濾液を送らず、送液系１７を通
して再び酸化槽２に送り返す。Next, a waste liquid treatment method using the treatment device will be described. The radioactive waste liquid is sent to the oxidation tank 2 from the radioactive waste liquid supply system 14. The concentration of organic substances, metals and other impurities in the radioactive liquid waste is constantly monitored by the impurity concentration measuring device 19. By electrically interlocking this with the oxidant supply valve 18, the amount of hydrogen peroxide solution supplied is minimized. That is, when the impurity concentration is high, the supply amount of the oxidant is increased, and when it is low, the supply amount is decreased.
As a result, the amount of oxidant added can be saved and corrosion damage to the device due to the oxidant can be prevented. Here, the impurity concentration measuring device is a device for measuring the impurity concentration by the light transmittance of the radioactive waste liquid. By the addition of the hydrogen peroxide solution, the oxidative decomposition reaction of the organic matter and the metal oxide production reaction due to the oxidation proceed inside the oxidation tank 2. The waste liquid subjected to the oxidation treatment is sent to the adsorbent addition tank 3 through the liquid sending system 10. Here, the powdered activated carbon carried by the adsorbent supply system 15 is added from the adsorbent tank 8 and stirred by the stirring device 27. In the adsorbent addition tank 3, metal oxides, oxidative decomposition products, and organic substances not decomposed by oxidation are adsorbed on the surface of the powdery activated carbon. Adsorbent supply valve 2
0 is electrically interlocked with an impurity concentration measuring device attached to the liquid feeding system 10, and changes the supply amount of powdered activated carbon according to the concentration of impurities in the radioactive waste liquid. As a result, the amount of powdered activated carbon added can be suppressed to a necessary minimum, and the amount of radioactive waste generated can be reduced. The waste liquid leaving the adsorbent addition tank 3 is sent to the filter 4 through the liquid sending system 11 and filtered. A reversible filter capable of continuous operation is suitable for the filter 4, and a synthetic fiber mesh is used as the filter cloth. The slurry-like debris generated by the filtration is delivered by the debris delivery system 16, incinerated and reduced, and then stored. The filtrate is checked for radioactivity level in the sample tank 16 by the liquid sending system 9, and then stored in the condensate storage tank 6 for reuse. When the radioactivity level is high in the sample tank, the filtrate is not sent to the condensate storage tank 6 and is sent back to the oxidation tank 2 through the liquid sending system 17.
【００１２】（実施例２）上記実施例では酸化剤として
過酸化水素水を用いたが、過酸化水素水のかわりに紫外
線ランプとオゾンを用いる方法について以下に説明す
る。系統図を図２に示した。Example 2 Although hydrogen peroxide solution was used as the oxidizer in the above example, a method of using an ultraviolet lamp and ozone instead of the hydrogen peroxide solution will be described below. A systematic diagram is shown in FIG.
【００１３】図２の処理装置は図１の処理装置に、構成
要素として気液分離装置３１，オゾン分解装置３３，送
気系２９，送液系３０，送気系３２，排気系３４が加わ
り、図１の酸化剤タンク１の代わりにオゾン発生装置
１′を設けた。また、酸化槽２には紫外線ランプ２８と
散気管３５が設けられている。The processing apparatus of FIG. 2 has a gas-liquid separating apparatus 31, an ozone decomposing apparatus 33, an air feeding system 29, a liquid feeding system 30, an air feeding system 32, and an exhaust system 34 as constituent elements in addition to the processing apparatus of FIG. Instead of the oxidizer tank 1 of FIG. 1, an ozone generator 1'is provided. Further, the oxidation tank 2 is provided with an ultraviolet lamp 28 and an air diffuser 35.
【００１４】次に処理装置を用いての廃液処理法につい
て説明する。Next, a waste liquid treatment method using the treatment device will be described.
【００１５】まず、紫外線ランプ２８を点燈し、酸化剤
供給系９よりオゾンを吹き込み、放射性廃液供給系１４
より酸化槽２に廃液を供給する。実施例１と同様に酸化
剤供給バルブ１８は不純物濃度測定系１９と連動してい
る。図２の実施例では、更に紫外線ランプの出力も不純
物濃度測定系１９に連動しており、不純物が少ないとき
は出力を弱め、多いときは出力を上げて消費電力を抑え
る。オゾンと紫外線の照射により酸化槽２の内部では酸
化反応が進行する。酸化処理以降の廃液処理操作は、実
施例１と同様である。First, the ultraviolet lamp 28 is turned on, ozone is blown from the oxidant supply system 9, and the radioactive waste liquid supply system 14 is supplied.
Waste liquid is supplied to the oxidation tank 2. As in the first embodiment, the oxidant supply valve 18 is linked to the impurity concentration measuring system 19. In the embodiment of FIG. 2, the output of the ultraviolet lamp is also linked to the impurity concentration measuring system 19, and when the amount of impurities is small, the output is weakened, and when the amount is large, the output is increased to suppress the power consumption. Oxidation reaction proceeds inside the oxidation tank 2 by irradiation of ozone and ultraviolet rays. The waste liquid treatment operation after the oxidation treatment is the same as in Example 1.
【００１６】次に発生する排オゾンの処理について、以
下に述べる。酸化糟２で発生する排オゾンは送気系２９
を通って気液分離系３１に移動する。排オゾンに伴って
出て来る同伴液体を分離するため、気液分離槽３１で気
液分離が行われる。液成分は送液系３０を通って酸化槽
２に戻され、排オゾンは送気管３２を通ってオゾン分解
装置３３で分解される。無害化された排気は排気系３４
より排出される。The treatment of the exhaust ozone generated next will be described below. Exhaust ozone generated in the oxidizer 2 is sent to the air supply system 29
And moves to the gas-liquid separation system 31. Gas-liquid separation is performed in the gas-liquid separation tank 31 in order to separate the accompanying liquid that comes out with the exhaust ozone. The liquid component is returned to the oxidation tank 2 through the liquid supply system 30, and the exhaust ozone is decomposed by the ozone decomposition device 33 through the air supply pipe 32. The harmless exhaust is the exhaust system 34
More discharged.
【００１７】（実施例３）上記実施例１，２では吸着剤
として粉状活性炭を用いたが、吸着能を増すために表面
処理あるいはそのほかの処理を行った活性炭を用いても
同様の効果を奏する。また、活性炭の代わりに同等の性
能を持つ吸着剤を用いても同様の効果を奏する。(Embodiment 3) Although powdered activated carbon was used as the adsorbent in the above-mentioned Examples 1 and 2, the same effect can be obtained by using activated carbon which has been surface-treated or other treatment to increase the adsorption capacity. Play. Further, the same effect can be obtained by using an adsorbent having equivalent performance instead of the activated carbon.
【００１８】（実施例４）上記実施例では過酸化水素
水，オゾン，紫外線を用いたが、同等の酸化処理を行う
ことができる他の手段によっても同様の効果を奏する。
ただし、次亜塩素酸ナトリウム，塩素ガスなど塩素系酸
化剤は、処理水中に塩素イオンや塩素化合物を生じる可
能性があるので好ましくない。最も望ましいのは、オゾ
ン，紫外線によるものである。過酸化水素水のような酸
化剤溶液を用いた場合、放射性廃液と酸化剤溶液を合わ
せるために処理すべき液量が多くなってしまうという欠
点がある。(Embodiment 4) Although hydrogen peroxide solution, ozone and ultraviolet rays are used in the above embodiment, the same effect can be obtained by other means capable of performing the same oxidation treatment.
However, chlorine-based oxidizing agents such as sodium hypochlorite and chlorine gas are not preferable because they may generate chlorine ions or chlorine compounds in the treated water. Most desirable is ozone or ultraviolet rays. When an oxidant solution such as hydrogen peroxide is used, there is a drawback that the amount of liquid to be treated in order to combine the radioactive waste liquid and the oxidant solution increases.
【００１９】（実施例５）上記実施例では濾過器として
可逆濾過器を用いたが、葉状型濾過器，多孔質濾過器な
どによっても同様の効果を奏する。また、濾材として合
成繊維を用いたが、同等の除去性能を持つガラス繊維，
炭素繊維あるいは金属網などによっても同様の効果を奏
する。(Embodiment 5) Although a reversible filter is used as the filter in the above embodiment, the same effect can be obtained by using a leaf type filter, a porous filter or the like. In addition, although synthetic fiber was used as the filter medium, glass fiber with the same removal performance,
The same effect can be obtained by using carbon fiber or a metal net.
【００２０】（実施例６）本発明では、廃液処理過程に
酸化処理が含まれている。このため、放射性廃液中の有
機物成分の酸化分解を同時に行うことができる。したが
って、原子力発電所の洗濯廃液の分解処理に有効であ
る。(Embodiment 6) In the present invention, an oxidation treatment is included in the waste liquid treatment process. Therefore, the oxidative decomposition of the organic component in the radioactive waste liquid can be performed at the same time. Therefore, it is effective for the decomposition treatment of the laundry waste liquid of the nuclear power plant.
【００２１】[0021]
【発明の効果】本発明によれば、酸化処理と吸着剤を用
いた濾過により、安価な濾過方法によって確実な放射性
物質および有機物除去性能を持つ有機物含有放射性廃液
の処理が行える。また、添加する酸化剤や吸着剤の量
は、放射性廃液中の不純物濃度に応じて加減するため、
酸化剤および吸着剤の節約，酸化剤による装置の腐食防
止，発生する固体廃棄物の減量が可能である。According to the present invention, the oxidation treatment and the filtration using the adsorbent enable the treatment of the radioactive waste liquid containing organic substances having a reliable removal property of radioactive substances and organic substances by an inexpensive filtration method. Also, the amount of oxidizer and adsorbent to be added is adjusted according to the concentration of impurities in the radioactive liquid waste,
It is possible to save oxidizer and adsorbent, prevent corrosion of equipment by oxidizer, and reduce solid waste generated.
【図１】酸化剤として過酸化水素水，吸着剤として粉状
活性炭を用いた場合の実施例の系統図。FIG. 1 is a system diagram of an example in which hydrogen peroxide solution is used as an oxidant and powdered activated carbon is used as an adsorbent.
【図２】酸化処理にオゾンと紫外線ランプを用い、吸着
剤として粉状活性炭を用いた場合の実施例の系統図。FIG. 2 is a system diagram of an example in which ozone and an ultraviolet lamp are used for the oxidation treatment and powdered activated carbon is used as an adsorbent.
１…酸化剤タンク、２…酸化槽、３…吸着剤添加槽、４
…濾過器、５…サンプルタンク、６…復水貯蔵タンク、
７…放射性廃液タンク、８…吸着剤タンク。1 ... oxidant tank, 2 ... oxidation tank, 3 ... adsorbent addition tank, 4
... filter, 5 ... sample tank, 6 ... condensate storage tank,
7 ... Radioactive waste liquid tank, 8 ... Adsorbent tank.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西 高志 茨城県日立市大みか町七丁目２番１号 株 式会社日立製作所エネルギー研究所内 (72)発明者 泉田 龍男 茨城県日立市幸町三丁目１番１号 株式会 社日立製作所日立工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takashi Nishi Inventor Takashi Nishi 2-7-1 Omika-cho, Hitachi City, Ibaraki Hitachi Energy Co., Ltd. (72) Inventor Tatsuo Izumida 3-chome, Saiwai-cho, Hitachi City, Ibaraki Prefecture No. 1 Hitachi Ltd. Hitachi factory
Claims (7)
および放射性物質を除去して清浄な処理水を得る方法に
おいて、前記放射性廃液を酸化処理し、吸着剤を加え、
濾過によって水に不溶な成分を除去して清浄な処理水を
得ることを特徴とする有機物を含む放射性廃液の処理方
法。1. A method for obtaining clean treated water by removing the organic substances and radioactive substances from a radioactive waste liquid containing an organic substance, wherein the radioactive waste liquid is subjected to an oxidation treatment and an adsorbent is added,
A method for treating a radioactive liquid waste containing an organic substance, characterized in that water-insoluble components are removed by filtration to obtain clean treated water.
する有機物を含む放射性廃液の処理方法。2. The method for treating a radioactive liquid waste containing an organic substance which is oxidized by an oxidizing agent according to claim 1.
および／または過酸化水素水を使用する有機物を含む放
射性廃液の処理方法。3. The method for treating a radioactive waste liquid containing an organic substance using ozone and / or hydrogen peroxide as an oxidant according to claim 2.
する有機物を含む放射性廃液の処理方法。4. The method for treating a radioactive waste liquid containing an organic substance which is oxidized by ultraviolet rays according to claim 1.
および前記有機物を除去して清浄な処理水を得る装置に
おいて、少なくとも、前記放射性廃液の酸化を行うため
の酸化剤添加手段あるいは紫外線照射手段，吸着剤の添
加を行うため吸着剤添加手段，廃液の濾過を行う手段と
からなることを特徴とする放射性廃液の処理装置。5. An apparatus for obtaining radioactive effluent containing organic substances to obtain clean treated water by removing radioactive substances and the organic substances, at least an oxidizing agent adding means or an ultraviolet irradiation means for oxidizing the radioactive waste liquid, An apparatus for treating radioactive waste liquid, comprising adsorbent addition means for adding adsorbent and means for filtering waste liquid.
が、前記放射性廃液中の不純物濃度を測定して酸化剤の
使用量を最小限に調節する機能を有する酸化剤添加装
置。6. The oxidant addition device according to claim 5, wherein the oxidant addition means has a function of measuring an impurity concentration in the radioactive waste liquid and adjusting the amount of the oxidant used to a minimum.
が、前記放射性廃液中の不純物濃度を測定して吸着剤の
使用量を最小限に調節する機能を有する吸着剤添加装
置。7. The adsorbent addition device according to claim 5, wherein the adsorbent addition means has a function of measuring the concentration of impurities in the radioactive waste liquid and adjusting the amount of adsorbent used to a minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4678994A JPH07260997A (en) | 1994-03-17 | 1994-03-17 | Method and device for treating radioactive waste liquid containing organic matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4678994A JPH07260997A (en) | 1994-03-17 | 1994-03-17 | Method and device for treating radioactive waste liquid containing organic matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07260997A true JPH07260997A (en) | 1995-10-13 |
Family
ID=12757107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4678994A Pending JPH07260997A (en) | 1994-03-17 | 1994-03-17 | Method and device for treating radioactive waste liquid containing organic matter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07260997A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006098360A (en) * | 2004-09-30 | 2006-04-13 | Toshiba Corp | Chemical decontamination method and chemical decontamination device |
| JP2012185013A (en) * | 2011-03-04 | 2012-09-27 | Hitachi-Ge Nuclear Energy Ltd | Processing method of radioactive waste liquid and processing apparatus therefor |
| JP2017511467A (en) * | 2014-12-29 | 2017-04-20 | エクソルブ リミテッド | Liquid radioactive waste disposal and reuse methods |
| JP2017176974A (en) * | 2016-03-29 | 2017-10-05 | 三菱重工業株式会社 | Processing apparatus of liquid to be processed, and processing method of liquid to be processed |
-
1994
- 1994-03-17 JP JP4678994A patent/JPH07260997A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006098360A (en) * | 2004-09-30 | 2006-04-13 | Toshiba Corp | Chemical decontamination method and chemical decontamination device |
| JP2012185013A (en) * | 2011-03-04 | 2012-09-27 | Hitachi-Ge Nuclear Energy Ltd | Processing method of radioactive waste liquid and processing apparatus therefor |
| JP2017511467A (en) * | 2014-12-29 | 2017-04-20 | エクソルブ リミテッド | Liquid radioactive waste disposal and reuse methods |
| CN107430897A (en) * | 2014-12-29 | 2017-12-01 | Eksorb有限公司 | The processing method of radioactive liquid waste and its application |
| JP2017176974A (en) * | 2016-03-29 | 2017-10-05 | 三菱重工業株式会社 | Processing apparatus of liquid to be processed, and processing method of liquid to be processed |
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