JPS617500A - Method and device for treating radioactive organic waste - Google Patents
Method and device for treating radioactive organic wasteInfo
- Publication number
- JPS617500A JPS617500A JP59127800A JP12780084A JPS617500A JP S617500 A JPS617500 A JP S617500A JP 59127800 A JP59127800 A JP 59127800A JP 12780084 A JP12780084 A JP 12780084A JP S617500 A JPS617500 A JP S617500A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen peroxide
- slurry
- organic waste
- decomposition
- supply
- 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
Links
- 238000000034 method Methods 0.000 title claims description 18
- 239000010815 organic waste Substances 0.000 title claims description 18
- 230000002285 radioactive effect Effects 0.000 title claims description 15
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 74
- 239000002002 slurry Substances 0.000 claims description 26
- 238000000354 decomposition reaction Methods 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000003957 anion exchange resin Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000003729 cation exchange resin Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- -1 iron ions Chemical class 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000013522 chelant Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000012736 aqueous medium Substances 0.000 claims 2
- 230000001590 oxidative effect Effects 0.000 claims 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229920001429 chelating resin Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229940023913 cation exchange resins Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012066 reaction slurry Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- RHQQHZQUAMFINJ-GKWSUJDHSA-N 1-[(3s,5s,8s,9s,10s,11s,13s,14s,17s)-3,11-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl]-2-hydroxyethanone Chemical compound C1[C@@H](O)CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@H](CC4)C(=O)CO)[C@@H]4[C@@H]3CC[C@H]21 RHQQHZQUAMFINJ-GKWSUJDHSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/30—Processing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
発明の目的 purpose of invention
【産業上の利用分野１
本発明は、放射性を有する有機質固体廃棄物の、過酸化
水素を用いた湿式酸化分解による処理方法の改良に関し
、その装置をも包含する。
（従来の技術）
原子力発電所や原子力研究施設において発生する放射性
核種を含有する廃水は、濾過、およびイオン交換樹脂に
より処理されており、その結果、放射性のフィルタース
ラッジおよび使用ずみイオン交換樹脂が放射性廃棄物と
して発生する。
これらの放射性の有機廃棄物を過酸化水素を用いて湿式
酸化分解することにより処理覆る技術があり、出願人は
、アニオン交換樹脂、キレート型樹脂おにび有機質フィ
ルタースラッジの１種、２種または３種を含む放射性の
有機質固体廃棄物に、鉄イオンおよび（または）カチオ
ン樹脂の存在下で過酸化水素を作用させることにより、
効果的に処理できることを開示した。（特開昭５７−１
４４６号）
この技術を工業的に一層効果的に実［る条件も開示した
（特開昭５９−４８６９７号）。 その条件とは、濃度
３０〜６０重都％の過酸化水素の形で、液状のまま、ま
たはガス状にして、被分解物１（１（乾燥Ｍ準）あたり
２〜４０ｇ／＋１の速度で連続的に供給することである
。 より好ましい条件は、過酸化水素水の供給速度を被
分解物１ｇ／時あたり１〜２０ｇ／時に保ちながら、被
分解物をも連続的に供給して処理することである。
いずれの場合も、過酸化水素を供給する代表的な態様は
、過酸化水素水を反応装置の下方から供給づることによ
り反応系の撹拌を助長しつつ酸化分解を行なうものであ
る。
【発明が解決しようとする問題点ｌ
このように過酸化水素を用いた湿式酸化分解法の利点は
、反応生成物が最終的にはＣＯ２および）−１２０とな
り、無害で処理が容易なことにある。
しかし、供給した過酸化水素の全部が有機物の分解に利
用されるわけではなく、むだに消費される部分もあり、
これが処理の費用を高くしている。
本発明の目的は、この問題を解決し、過酸化水素を有効
に利用して、酸化分解反応を効果的に進行させる方法と
その装置を提供することにある。
発明の構成
【問題点を解決するための手段】
本発明の放射性有機廃棄物を処理する方法は、アニオン
交換樹脂、キレート型樹脂および有機フィルタースラッ
ジの１種、２種または３種を含む放射性の有機廃棄物を
含有するスラリーを、処理槽内で、撹拌おにび加熱しな
がら、スラリーの流れの中に開口する複数の過酸化水素
供給口から過酸化水素を供給して、酸化分解することを
特徴とする。
上記の処理方法を実施するための装置は、図面に示すよ
うに、撹拌手段２および加熱手段たとえばジ１７ケツト
３１および加熱コイル３２を有し、放射性の有機廃棄物
のスラリーの供給管４をそなえた反応槽を用いる。 ５
は、酸化分解により発生するガスや水蒸気の排出口であ
る。 この反応槽１の内部において、撹拌手段２により
形成されるスラリーの流れ、図示した例では中央部を上
胃し周辺部を下降する循環流の中に開口する複数の過酸
化水素供給口６３を設けたことが、この装置の特徴であ
る。
（作 用１
過酸化水素による有機物Ｒの分解反応は、下記のような
ラジカル発生を出発点としている。
Ｆｅ２＋ （触媒）＋ＨＯ−ＯＨ−） Ｆｅ３＋＋Ｏ
Ｈ＋−０ＨＲＨ＋・ＯＨ−＋ Ｈ３Ｏ＋・Ｒ
・Ｒ＋ＨＯ−ＯＨ−→ ＲＯＨ＋・ＯＨしかし、生成し
たラジカル（・Ｒ１・０ｆ−４＞は、有機質廃棄物の分
解に関与せずに消費されるものもある。
・Ｒ＋・Ｒ−＋Ｒ−Ｒ
・ ＯＨ＋ＨＯ−０ト１ → Ｈ２０＋ＨＯｐ
Ｆｅ ３ ＋ 十Ｆ＋０２ −＋ Ｆｅ
２ ＋ ＋０２ 十Ｈこのような知見にもとづき、
本発明においては、酸化分解すべき有機質廃棄物のスラ
リーの流れの中に開口する多数の供給管から過酸化水素
をいっせいに放出する構成をとったので、その分解によ
って生じるラジカル・ＯＨが効果的に有機質廃棄物の分
解に消費されるわけである。[Industrial Application Field 1] The present invention relates to an improvement in a method for treating radioactive organic solid waste by wet oxidative decomposition using hydrogen peroxide, and also includes an apparatus for the treatment. (Prior art) Wastewater containing radionuclides generated at nuclear power plants and nuclear research facilities is filtered and treated with ion exchange resins. As a result, radioactive filter sludge and used ion exchange resins become radioactive. Generated as waste. There is a technology for treating these radioactive organic wastes by wet oxidative decomposition using hydrogen peroxide, and the applicant has proposed using one, two or two of anion exchange resins, chelate resins, and organic filter sludge. By allowing hydrogen peroxide to act on radioactive organic solid waste containing three types of waste in the presence of iron ions and/or cationic resins,
It has been shown that it can be treated effectively. (Unexamined Japanese Patent Publication No. 57-1
(No. 446) Conditions for implementing this technique more effectively industrially were also disclosed (Japanese Patent Application Laid-open No. 48697/1983). The conditions are hydrogen peroxide with a concentration of 30 to 60% by weight, either in liquid form or in gaseous form, at a rate of 2 to 40 g/+1 per 1 (1 (dry M)) of decomposed material. A more preferable condition is to continuously supply the decomposition product while maintaining the hydrogen peroxide solution supply rate from 1 to 20 g/hour per 1 g/hour of the decomposition product. In either case, a typical mode of supplying hydrogen peroxide is to feed hydrogen peroxide solution from below the reactor to facilitate oxidative decomposition while promoting agitation of the reaction system. [Problems to be solved by the invention] The advantage of the wet oxidative decomposition method using hydrogen peroxide is that the reaction products are CO2 and )-120 in the end, which are harmless and easy to process. It is in. However, not all of the supplied hydrogen peroxide is used to decompose organic matter, and some portion is wasted.
This makes processing expensive. An object of the present invention is to solve this problem and provide a method and an apparatus for effectively utilizing hydrogen peroxide to effectively proceed with an oxidative decomposition reaction. Structure of the Invention [Means for Solving the Problems] The method of treating radioactive organic waste of the present invention comprises a radioactive organic waste containing one, two or three of anion exchange resin, chelate type resin and organic filter sludge. Slurry containing organic waste is oxidized and decomposed in a treatment tank while stirring and heating while supplying hydrogen peroxide from multiple hydrogen peroxide supply ports that open into the flow of the slurry. It is characterized by As shown in the drawings, the apparatus for carrying out the above treatment method has a stirring means 2 and a heating means, such as a jacket 31 and a heating coil 32, and is equipped with a supply pipe 4 for slurry of radioactive organic waste. Use a reaction tank with 5
is an outlet for gas and water vapor generated by oxidative decomposition. Inside the reaction tank 1, a plurality of hydrogen peroxide supply ports 63 are opened into the flow of the slurry formed by the stirring means 2, which in the illustrated example is a circulating flow that flows from the central part to the epigastric region and descends from the peripheral part. This is a feature of this device. (Action 1 The decomposition reaction of organic substance R by hydrogen peroxide starts with the generation of radicals as shown below. Fe2+ (catalyst) + HO-OH-) Fe3++O
H+-0HRH+・OH-+ H3O+・R ・R+HO-OH-→ ROH+・OH However, some of the generated radicals (・R1・0f-4> are consumed without participating in the decomposition of organic waste.・R+・R−+R−R ・OH+HO−0to1 → H20+HOp
Fe 3 + 10F+02 −+ Fe
2 + +02 10H Based on this knowledge,
In the present invention, hydrogen peroxide is released all at once from a large number of supply pipes that open into the flow of slurry of organic waste to be oxidized and decomposed, so that the radicals and OH generated by the decomposition are effectively removed. It is consumed in the decomposition of organic waste.
【実施態様１
好ましい反応装置の形態は、図面に示すように、複数の
過酸化水素供給口６３が、反応槽１の底部中央から１方
へ向う供給母管６１から放射状に等間隔に分岐した（図
示した例では、水平方向に９０°ずつの間隔で分岐し、
再び立ち上がっている）複数の供給管６２の端に、水平
または下向き（図示した例では水平）に開口したもので
ある。
供給ｉ」を水平またはそれより下向きにするのは、供給
１」に、樹脂類や分解生成物の残油が詰まらないように
配慮し１．：乙のである。
過酸化水素の供給量はさして多くなく、配管にかかる圧
力も小さいため、母管から分岐し供給管の先端までの距
離はすべて等しくして、放出量を均等に保つべきである
。 また過酸化水素の供給速度が低くても、管内流速を
大きくできるように、分岐した供給管の径は、実用的な
範囲で細いものを用いるとよい。
過酸化水素の流路となる管の材質としては、耐食性のよ
いチタンまたはその合金が好ましい。
運転は、まず放射性の有機質廃棄物を含有するスラリー
を、第１図に示す供給管４がら供給し、加熱用コイル３
２とジャケラｉ・３１にスチームを通して、スラリーを
１００℃程度まで加熱し、撹拌する。 スラリ一温度が
十分に高くなったら、前述の４本に分岐した供給管６２
を通じ、供給口６３から、過酸化水素を分散供給する。
、過酸化水素は撹拌によるスラリーの流れの中に放出さ
れて混合され、スラリー中の有機物の分解反応が進行す
る。
本発明の実施に当っては、過酸化水素の供給方法以外は
、湿式酸化分解処理に関して知られている技術に従えば
よい。
づなわち、触媒は鉄イオンおよび（または）カチオン交
換樹脂であて、鉄イオン源としては、可溶性の塩類を任
意にえらんで用いることができる。
たとえば、Ｆｅ２イオンを与えるものには、「ｅＳＯ４
、（Ｎ＋−１４）２ Ｆｅ （ＳＯ４）２、ＦｅＣ１
２、Ｆｅ （ＣＨ３−ＣＨＯＨＣＯＯ）２、ＦＯＣ２
０４などがあり、Ｆ：Ｃ３を与えるものとし （１よ、
に 〇 り （８０４） ３ 、 Ｆｅ
（ＮＯ３＞３ ．１−ｅ Ｃ１３、（ＮＨ４’）２Ｆｅ
２ （ＳＯ４）３などが挙げられる。、ツでに開示し
たように、これらの中では、［−ｅＳ０４、［ｅ ２
（ＳＯ４＞、 ３、Ｆｅ（Ｎ、０３）３などが適当であ
る。
カチオン交換樹脂は、アニオン交換樹脂など、それ以外
の有機廃棄物に対して、重最で１％以上存在すれはその
影響が認められる。 効果が顕著に得られるのは１０％
またはそれ以上である。
実際上、原子力施設の廃水処理からは、有機廃棄物とし
゛Ｃ使用ずみのカチオン交換樹脂とアニオン交換樹脂と
が同時に発生するから、それらを−緒に処理づ−ればよ
いわけである。
過酸化水素は、これもさきに開示したように、ａ度３０
〜６０重量％の過酸化水素水を液状のまま、またはカス
状にして、被分解物１９ （乾燥基Ｑ’＝）あたり２〜
４０ａ／ｈの速度で連続的に供給量る。
【実施例１および比較例１】
図面に示した形状の、内容積３０（ｌの反応槽に、有機
質廃棄物として、粒状カチオン交換樹脂「アンバーライ
トＪＩＲ１２０Ｂの５Ｋ（］およびアニオン交換樹脂「
アンバーライトＪ ＩＲＡ４００の２．５Ｋｇを含有す
るスラリー１５０文（これをスラリーｒＡＪとする）、
または、粒状アニオン交換樹脂［アンバーライトＪＩＲ
Ａ４００の７．４Ｋｇを含有するスラリー１５（１（こ
れをスラリーＦＢＩとする）を供給し、触媒としてＦｅ
ＳＯ４・７１−１２０をスラリー基準で０．０２ｍｏ
ｆ／Ｑ存在させ、撹拌しながら、１００℃に加熱して、
３５％過酸化水素水を４本に分岐した供給管から１５１
／ｈの速度で供給し、回分式で反応させた。 反応時間
２．４および６時間後の分解率を測定した。その結果を
第１表に示す。
比較のため、上記と同じ装置および試料を用い、過酸化
水素を１本の供給管（母管）だけから供給して、酸化分
解を行なった。 その結果を、あわせて第１表に示す。
第 １ 表
反応 スラリーＡ スラリーＢｉ」 比較例
実施例 比較例 実施例２ ｔｌ＋６．７
％ ６４．５％ ３．７％ １２，５％４ ８
０．３ ９０．３ ．５４．６ ５３．５６
９２．７ ９５，８ ８０．０
８３．３[Embodiment 1] As shown in the drawing, a plurality of hydrogen peroxide supply ports 63 are branched radially at equal intervals from a supply main pipe 61 extending in one direction from the center of the bottom of the reaction tank 1. (In the illustrated example, it branches horizontally at intervals of 90°,
The supply pipes 62 are opened horizontally or downwardly (horizontally in the illustrated example) at the ends of the plurality of supply pipes 62 (standing up again). The reason why "Feed I" is set horizontally or downward is to prevent the "Feed 1" from becoming clogged with residual oil from resins or decomposition products. :Otsu no deru. Since the amount of hydrogen peroxide supplied is not very large and the pressure applied to the pipe is small, the distances from the main pipe to the tip of the supply pipe should all be the same to keep the amount released even. Further, even if the supply rate of hydrogen peroxide is low, the diameter of the branched supply pipe is preferably as small as practical so that the flow rate in the pipe can be increased. The material of the tube serving as the hydrogen peroxide flow path is preferably titanium or an alloy thereof, which has good corrosion resistance. In operation, first, a slurry containing radioactive organic waste is supplied through the supply pipe 4 shown in FIG.
Heat the slurry to about 100°C by passing steam through 2 and Jaquera i-31, and stir. When the slurry temperature becomes high enough, the aforementioned four branched supply pipes 62
Through the supply port 63, hydrogen peroxide is distributed and supplied. , hydrogen peroxide is released and mixed into the slurry flow due to stirring, and the decomposition reaction of organic matter in the slurry proceeds. In carrying out the present invention, techniques known regarding wet oxidative decomposition treatment may be followed except for the method of supplying hydrogen peroxide. That is, the catalyst is iron ions and/or a cation exchange resin, and any soluble salts can be used as the iron ion source. For example, something that gives Fe2 ions is “eSO4
, (N+-14)2 Fe (SO4)2, FeC1
2, Fe (CH3-CHOHCOO)2, FOC2
04, etc., and give F:C3 (1,
(804) 3, Fe
(NO3>3 .1-e C13, (NH4')2Fe
2 (SO4)3 and the like. , among these, [-eS04, [e 2
(SO4>, 3, Fe(N, 03)3, etc. are suitable.Cation exchange resins, such as anion exchange resins, have a heavy influence on other organic wastes if they exist at a maximum of 1% or more. The effect is noticeable in 10% of cases.
or more. In fact, since organic waste and cation exchange resins and anion exchange resins used in carbon are generated at the same time in the treatment of wastewater from nuclear facilities, it is sufficient to treat them together. As previously disclosed, hydrogen peroxide has a temperature of 30 degrees
~60% by weight of hydrogen peroxide solution, either in liquid form or in the form of dregs, is added to 2~60% by weight of hydrogen peroxide solution per 19 (dry group Q'=) to be decomposed.
Feed continuously at a rate of 40 a/h. [Example 1 and Comparative Example 1] A granular cation exchange resin "Amberlite JIR120B 5K (]" and an anion exchange resin "
150 sentences of slurry containing 2.5 kg of Amberlite J IRA400 (this is referred to as slurry rAJ),
Or, granular anion exchange resin [Amberlite JIR
Slurry 15 (1 (this is referred to as slurry FBI) containing 7.4 kg of A400 is supplied, and Fe as a catalyst is supplied.
0.02mo of SO4 71-120 based on slurry
in the presence of f/Q, heated to 100°C while stirring,
151 35% hydrogen peroxide solution from four branched supply pipes
The reaction was carried out batchwise by feeding at a rate of 1/h. The decomposition rate was measured after reaction times of 2.4 and 6 hours. The results are shown in Table 1. For comparison, oxidative decomposition was carried out using the same apparatus and sample as above, with hydrogen peroxide being supplied from only one supply pipe (main pipe). The results are also shown in Table 1. Table 1 Reaction Slurry A Slurry Bi Comparative Example Example Comparative Example Example 2 tl+6.7
% 64.5% 3.7% 12.5%4 8
0.3 90.3. 54.6 53.56
92.7 95.8 80.0
83.3
【実施例２および比較例２】
有機質廃棄物として、粉末のカチオン交換樹脂「ＰｃＨ
−１５Ｋａおよびアニオン交換樹脂Ｉ’ＰＡＯＪ ２．
５ＫＣＩを含有するスラリー（これをスラリーｒ ＣＪ
とする）および上記ｒＰＣＨＪ ３．７５Ｋ（］および
ｔＰＡＯＪ ３．７５ＫＣＩを含有するスラリー（これ
をスラリーｒＤＪとする）を、実施例１の方法に従って
処理した。
比較のため、上記２種のスラリーを、比較例１の方法に
従って処理した。
以上の結果を第２表に示す。
第 ２ 表
反応 スラリー〇 スラリーＤｉｌ 比較例
実施例 比較例 実施例２ １６．０％
１４．８％ ２．６％ ３．８％４ ４４．５
５３，４ ３６．９’ ３６．７Ｇ
８１．９ ８３．５ ７３．９ ７５．７
発明の効果
本発明に従う過酸化水素の供給を行なえば、過酸化水素
が効率よく分解反応に消費され、より高い分解率を達成
できる。 見方をかえれば、従来と同じ分解率を得るに
必要な反応時間が短縮されることになる。
放射性の有機質廃棄物のより多くの部分がより短い時間
で分解処理されることは、後続の蒸発濃縮工程へ送る対
象物が少なくなることを意味し、高い減容性が実現し、
かつ廃棄物処理に要するエネルギーが節減できる。[Example 2 and Comparative Example 2] Powdered cation exchange resin “PcH” was used as organic waste.
-15Ka and anion exchange resin I'PAOJ 2.
Slurry containing 5KCI (slurry r CJ
A slurry containing rPCHJ 3.75K (] and tPAOJ 3.75KCI (this is referred to as slurry rDJ) was treated according to the method of Example 1. For comparison, the above two slurries were The treatment was carried out according to the method of Comparative Example 1. The above results are shown in Table 2. Table 2 Reaction Slurry 〇 Slurry Dil Comparative Example Example Comparative Example Example 2 16.0%
14.8% 2.6% 3.8%4 44.5
53.4 36.9' 36.7G
81.9 83.5 73.9 75.7
Effects of the Invention By supplying hydrogen peroxide according to the present invention, hydrogen peroxide is efficiently consumed in the decomposition reaction, and a higher decomposition rate can be achieved. From a different perspective, the reaction time required to obtain the same decomposition rate as conventional methods is shortened. A larger portion of radioactive organic waste is decomposed in a shorter time, which means that less material is sent to the subsequent evaporative concentration process, resulting in a higher volume reduction.
In addition, the energy required for waste treatment can be saved.
図面は本発明の処理゛装置の代表的な例を示すものであ
って、第１図は縦断面図であり、第２図は第１図Ｉ−１
位回における横断面図である。
１・・・反応槽
２・・・撹拌手段 □
３１・・・加熱用ジＶケット
３２・・・加熱用コイル
４・・・有ｍ貿廃東物供給管
５・・・排気口
６１・・・過酸化水素供給母管
６２・・・過酸化水素供給分岐管
６３・・・過酸化水素供給口The drawings show a typical example of the processing apparatus of the present invention, in which FIG. 1 is a longitudinal sectional view, and FIG. 2 is a cross-sectional view of FIG.
FIG. 1... Reaction tank 2... Stirring means □ 31... Heating di-Vket 32... Heating coil 4... Yumbo Haitobutsu supply pipe 5... Exhaust port 61...・Hydrogen peroxide supply main pipe 62...Hydrogen peroxide supply branch pipe 63...Hydrogen peroxide supply port
Claims (5)
フィルタースラッジの１種、２種または３種を含む放射
性の有機廃棄物を、触媒の存在下に水性媒体中で、過酸
化水素を作用させて酸化分解することにより処理する方
法において、放射性の有機廃棄物を含有するスラリーを
、処理槽内で撹拌および加熱しながら、スラリーの流れ
の中の開口する複数の過酸化水素供給口から過酸化水素
を供給して酸化分解することを特徴とする処理方法。(1) Radioactive organic waste containing one, two, or three of anion exchange resin, chelate resin, and organic filter sludge is oxidized by the action of hydrogen peroxide in an aqueous medium in the presence of a catalyst. In a method of processing by decomposition, a slurry containing radioactive organic waste is stirred and heated in a processing tank, while hydrogen peroxide is supplied through multiple hydrogen peroxide supply ports that open into the slurry flow. A treatment method characterized by supplying and oxidizing decomposition.
換樹脂を用いる特許請求の範囲第１項に記載の方法。(2) The method according to claim 1, which uses iron ions and/or a cation exchange resin as a catalyst.
水の形で、液状のまま、またはガス状にして、被分解物
１ｇ（乾燥基準）あたり２〜４０ｇ／ｈの速度で連続的
に供給する特許請求の範囲第１項に記載の方法。(3) Continuously add hydrogen peroxide in the form of hydrogen peroxide solution with a concentration of 30 to 60% by weight, either in liquid form or in gaseous form, at a rate of 2 to 40 g/h per 1 g of decomposition material (dry basis). A method according to claim 1, wherein the method is provided as follows.
で過酸化水素を作用させて酸化分解することにより処理
する装置において、撹拌手段および加熱手段を有し放射
性の有機廃棄物のスラリーの供給管をそなえた反応槽に
、上記撹拌手段により形成されるスラリーの流れの中に
開口する複数の過酸化水素供給口を設けたことを特徴と
する処理装置。(4) An apparatus for treating radioactive organic waste by oxidizing and decomposing it with hydrogen peroxide in an aqueous medium in the presence of a catalyst, which has a stirring means and a heating means and is a slurry of radioactive organic waste. A processing apparatus characterized in that a reaction tank equipped with a supply pipe is provided with a plurality of hydrogen peroxide supply ports opening into the flow of slurry formed by the stirring means.
ら上方に向う供給母管から放射状に分岐した複数の供給
管の端に、水平または水平より下向きに開口している特
許請求の範囲第４項に記載の処理装置。(5) A plurality of hydrogen peroxide supply ports are opened horizontally or downward from the horizontal at the ends of a plurality of supply pipes branching radially from a supply main pipe extending upward from the center of the bottom of the reaction tank. The processing device according to scope 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59127800A JPS617500A (en) | 1984-06-21 | 1984-06-21 | Method and device for treating radioactive organic waste |
| SE8503064A SE8503064L (en) | 1984-06-21 | 1985-06-19 | TREATMENT OF RADIOACTIVE WASTE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59127800A JPS617500A (en) | 1984-06-21 | 1984-06-21 | Method and device for treating radioactive organic waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS617500A true JPS617500A (en) | 1986-01-14 |
Family
ID=14968986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59127800A Pending JPS617500A (en) | 1984-06-21 | 1984-06-21 | Method and device for treating radioactive organic waste |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS617500A (en) |
| SE (1) | SE8503064L (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07508612A (en) * | 1992-11-20 | 1995-09-21 | ストッキエーロ，オリンピオ | Electrode elements for storage batteries |
| WO1996037897A1 (en) * | 1995-05-22 | 1996-11-28 | Siemens Aktiengesellschaft | Process and device for separating a medium into a solid matter-containing component and a liquid component |
| RU2733055C1 (en) * | 2020-01-23 | 2020-09-29 | Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") | Method of processing spent ion-exchange resins |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571446A (en) * | 1980-06-05 | 1982-01-06 | Japan Atom Energy Res Inst | Decomposition of ion exchange resin |
| JPS5735898B2 (en) * | 1978-10-31 | 1982-07-31 | ||
| JPS5948697A (en) * | 1982-09-13 | 1984-03-19 | 日揮株式会社 | Method of processing radioactive organic waste |
-
1984
- 1984-06-21 JP JP59127800A patent/JPS617500A/en active Pending
-
1985
- 1985-06-19 SE SE8503064A patent/SE8503064L/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735898B2 (en) * | 1978-10-31 | 1982-07-31 | ||
| JPS571446A (en) * | 1980-06-05 | 1982-01-06 | Japan Atom Energy Res Inst | Decomposition of ion exchange resin |
| JPS5948697A (en) * | 1982-09-13 | 1984-03-19 | 日揮株式会社 | Method of processing radioactive organic waste |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07508612A (en) * | 1992-11-20 | 1995-09-21 | ストッキエーロ，オリンピオ | Electrode elements for storage batteries |
| WO1996037897A1 (en) * | 1995-05-22 | 1996-11-28 | Siemens Aktiengesellschaft | Process and device for separating a medium into a solid matter-containing component and a liquid component |
| RU2733055C1 (en) * | 2020-01-23 | 2020-09-29 | Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") | Method of processing spent ion-exchange resins |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8503064D0 (en) | 1985-06-19 |
| SE8503064L (en) | 1985-12-22 |
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