JPS62206498A - Processor for sea water containing radioactive substance - Google Patents
Processor for sea water containing radioactive substanceInfo
- Publication number
- JPS62206498A JPS62206498A JP61049272A JP4927286A JPS62206498A JP S62206498 A JPS62206498 A JP S62206498A JP 61049272 A JP61049272 A JP 61049272A JP 4927286 A JP4927286 A JP 4927286A JP S62206498 A JPS62206498 A JP S62206498A
- Authority
- JP
- Japan
- Prior art keywords
- seawater
- water
- tank
- concentrated
- processor
- 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
- 239000013535 sea water Substances 0.000 title claims description 40
- 239000000941 radioactive substance Substances 0.000 title description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 150000003839 salts Chemical class 0.000 claims description 12
- 238000010612 desalination reaction Methods 0.000 claims description 11
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- 238000001223 reverse osmosis Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- -1 chlorine ions Chemical class 0.000 claims description 3
- 239000012267 brine Substances 0.000 claims 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000012857 radioactive material Substances 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 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 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、主として原子力発電所の管理区域内等で発生
する海水ドレーン及び放射性物質の混入したリーク海水
を処理する海水処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seawater treatment device for treating leaked seawater contaminated with seawater drains and radioactive substances, which mainly occurs in controlled areas of nuclear power plants.
原子力発電所の冷却水系統に海水を使用している設備で
は、その配管フランジの継手部分より海水が僅かに漏れ
ることがある。このような海水ドレーンが管理区域を通
過することにより、それ自体に放射性物質を僅かに含む
ことになる。In facilities that use seawater for the cooling water system of nuclear power plants, a small amount of seawater may leak from the joints of the piping flanges. When such seawater drains pass through controlled areas, they themselves contain small amounts of radioactive materials.
又、冷却装置の熱交換器等において材料腐食が生じた場
合には、放射性流体側に海水が混入することになる。こ
のような放射性物質を含む海水は、それを通常の排水処
理装置により処理すると海水中の塩素により処理装置の
腐食を起こし、安全な排水処理を行うことができない。Furthermore, if material corrosion occurs in a heat exchanger or the like of a cooling device, seawater will enter the radioactive fluid side. If seawater containing such radioactive substances is treated with a normal wastewater treatment device, the treatment device will be corroded by the chlorine in the seawater, making safe wastewater treatment impossible.
従って、このような海水はその塩素骨を取り除いた後で
しか通常の排水処理装置を使用することができない。そ
こで、海水を処理する装置としては、従来次のような物
が一般に存在した。先ず、蒸発濃縮法により海水を処理
するものがあるが、この方法によると海水中の塩素によ
り濡縮器の材料がおかされたり加熱源のコストが犬とな
る欠点があった。次に、電気透析法による方法が考えら
れるが、この方法は、減容性に劣り、電気設備と大掛か
りな装置が必要である。Therefore, such seawater can only be used in conventional wastewater treatment equipment after its chlorine bones have been removed. Therefore, the following types of equipment have conventionally existed for treating seawater. First, there is a method for treating seawater by evaporation concentration, but this method has the disadvantages that the material of the wetting device is damaged by the chlorine in the seawater and the cost of the heating source is high. Next, a method using electrodialysis may be considered, but this method has poor volume reduction properties and requires electrical equipment and large-scale equipment.
それと共に前処理装置として濾過装置を必要とする等設
備が大規模になる欠点がある。更にはイオン交換樹脂法
が考えられるが、この方法は海水と同程度の量のイオン
交換樹脂を必要とするため、減容性に劣り樹脂のコスト
が高（、経済性に欠ける欠点がある。さらには晶析共沈
法によれば、処理する運転員が熟練者で且つ、化学的知
識のある者でなげればならず操作の安全性にも欠ける欠
点があった。At the same time, there is a drawback that the equipment becomes large-scale, such as requiring a filtration device as a pre-treatment device. Another possibility is the ion exchange resin method, but this method requires an amount of ion exchange resin comparable to that of seawater, so it has the drawbacks of poor volume reduction and high resin cost (and lack of economic efficiency). Furthermore, according to the crystallization coprecipitation method, the operator who carries out the treatment must be an experienced person and have chemical knowledge, and there is a drawback that the operation is not safe.
そこで本発明は以上の問題点に鑑み、原子力発電所内で
漏出する海水は、その発生場所の範囲が広い事と又発生
量も少ない事とに着目し、経済性のある逆浸透法を採用
した循環濃縮処理を行い得る処理装置を提供することを
目的とし、その構成は次のとおりである。Therefore, in view of the above problems, the present invention focused on the fact that the seawater leaking inside a nuclear power plant is generated over a wide range of areas and the amount generated is small, and adopted an economical reverse osmosis method. The purpose of the present invention is to provide a processing device capable of performing cyclic concentration processing, and its configuration is as follows.
即ち、放射性物質を含む海水を収容する海水光はタンク
１を設け、該海水光げタンク１から脱塩装置２に海水を
供給する。そして該脱塩装置２に内装された逆浸透性物
質により海水中の塩素イオン及び塩分を除去した水のみ
を透過するように構成する。更に、脱塩装置２と海水光
はタンク１との間を還流ライン３で連結し、脱塩水以外
の濃縮塩水を前記海水光はタンク１に還流させる。それ
と共に脱塩水を前記脱塩装置２から取り出す脱塩水ライ
ン４を設ける。そして、海水光はタンク１内に最終的に
補足された前記濃縮塩水を細化処理するように構成した
ものである。That is, a seawater light tank 1 containing seawater containing radioactive substances is provided, and seawater is supplied from the seawater light tank 1 to the desalination apparatus 2. The desalination device 2 is configured so that only water from which chlorine ions and salts have been removed from the seawater is transmitted through the desalination device 2 by means of a reverse osmosis material installed therein. Further, the desalination device 2 and the seawater light tank 1 are connected by a reflux line 3, and the seawater light and the seawater light are refluxed to the tank 1 with concentrated salt water other than desalinated water. At the same time, a desalinated water line 4 for taking out desalinated water from the desalting device 2 is provided. The seawater light is configured to atomize the concentrated saltwater that is finally captured in the tank 1.
次に図面に基づいて本発明の実施例につき説明する。 Next, embodiments of the present invention will be described based on the drawings.
微量の放射性物質を含む海水は海水光はタンク１に収納
される。そして、この海水光はタンク１からポンプ６に
より海水供給ライン５を介して脱塩装置２に海水が供給
される。この脱塩装置２は逆浸透膜を内装し、それによ
り海水中の塩素イオンや塩分を取り除き、脱塩水と残滓
の濃縮液とに分離する。そして脱塩水は脱塩水ライン４
を介し脱塩水受タンク１０に収納される。Seawater containing a trace amount of radioactive material is stored in a seawater tank 1. Then, this seawater light is supplied from the tank 1 to the desalination apparatus 2 via the seawater supply line 5 by the pump 6. This desalination device 2 is equipped with a reverse osmosis membrane, which removes chlorine ions and salt from seawater and separates it into desalinated water and concentrated residue. And desalinated water is desalinated water line 4
The demineralized water is stored in the desalinated water receiving tank 10 via the demineralized water tank 10.
又、残滓を有する比較的少量の濃縮液は還流ライン３を
通り海水光はタンク１に戻される。そして、再びこの海
水光はタンク１、海水供給ライン５、脱塩装置２、還流
ライン３間を循環することにより濃縮液は高濃縮減容化
する。そして、最終的な海水光はタンク１内の濃縮液は
濃縮水出口ライン８を介し濃縮水受皿９に導かれる。こ
の濃縮水受皿９に導かれた濃縮水は濃縮減容化されてい
るため極めて少量である。そこでこの濃縮水受皿９に於
いて自然乾燥或いは加熱による蒸発乾燥され、さらには
残滓凝固剤を添加することにより、それをペースト状に
固化する。勿論このような固化された物質中には少量の
放射性物質が含まれている。次に、このようにして処理
された脱塩水中には微量放射性物質を含む虞れがあるた
め、通常の排水処理装置に翼かれる。或いばポンプ７及
び循環系洗浄ライン１１を介し、本装置の停止時に於け
る濃縮循環系の洗浄用水として使用される。Also, a relatively small amount of concentrated liquid containing residue passes through a reflux line 3, and the seawater is returned to the tank 1. Then, this seawater light is circulated again between the tank 1, the seawater supply line 5, the desalination device 2, and the reflux line 3, whereby the concentrated liquid is highly concentrated and reduced in volume. In the final seawater light, the concentrated liquid in the tank 1 is led to a concentrated water receiving tray 9 via a concentrated water outlet line 8. The concentrated water introduced into the concentrated water receiving tray 9 is concentrated and reduced in volume, so that the amount of concentrated water is extremely small. Then, the concentrated water is dried naturally or evaporated by heating in the concentrated water tray 9, and then solidified into a paste by adding a residual coagulant. Of course, such a solidified substance contains a small amount of radioactive material. Next, since there is a risk that the desalinated water treated in this way may contain trace amounts of radioactive substances, it is sent to ordinary wastewater treatment equipment. Alternatively, it is used as water for cleaning the concentration circulation system when the apparatus is stopped, via the pump 7 and the circulation system cleaning line 11.
なお本装置に使用される海水光はタンク１や各種機器及
び配管は耐蝕性を有するステンレス鋼や耐蝕性を有する
樹脂材料で構成されている。In addition, the tank 1, various equipment, and piping of the seawater light used in this device are constructed of corrosion-resistant stainless steel or corrosion-resistant resin materials.
本発明の海水の処理装置は以上のような構成からなり、
次の効果を有する。The seawater treatment device of the present invention has the above configuration,
It has the following effects.
（１） 本装置は、原子力発電所内で生じた放射性物
質を含む海水中の塩分又は塩素骨を逆浸透性物質を内装
した脱塩装置２により除去できるように構成したから、
脱塩後の水を通常の放射性物質を含む水として別個の処
理装置で容易に処理することができる。即ち、塩素等が
存在しないから、放射性物質を含む水により、その処理
装置を損傷させることがなく、安全なる放射性物質の処
理作業を行い得る。(1) This device is configured so that the desalination device 2 equipped with a reverse osmosis material can remove salt or chlorine from seawater containing radioactive materials generated within a nuclear power plant.
The water after desalination can be easily treated as water containing ordinary radioactive substances in a separate treatment device. That is, since there is no chlorine or the like, the treatment equipment will not be damaged by water containing radioactive substances, and radioactive substance processing operations can be carried out safely.
（２）又、本装置は逆浸透性物質を内装した脱塩装置２
と還流ライン３及び脱塩水ライン４とからなり、構造が
簡単で本装置を故障なく安全に作動し得る。しかも、装
置が簡単であるから小型で可搬性があり、安価にそれを
提供し得る。(2) Also, this device is a desalination device 2 equipped with a reverse osmosis substance.
It consists of a reflux line 3 and a demineralized water line 4, and the structure is simple and the device can be operated safely without trouble. Moreover, since the device is simple, it is small and portable, and can be provided at low cost.
（３） さらに、本装置により海水光はタンク１内に
最終的に生じた′濃縮塩水は、それを固化処理するよう
に構成しているから、該濃縮塩水中の放射性物質を安全
に処理することができる。(3) Furthermore, since this device is configured to solidify the concentrated salt water that is finally produced in the tank 1, radioactive substances in the concentrated salt water can be safely processed. be able to.
（４）又、木肌塩装置２が逆浸透性物質を内装したもの
からなるため、本装置では塩水を濃縮する工程において
熱源を殆ど用いることがなく、ランニングコストが安価
となる。(4) Furthermore, since the wood salt device 2 includes a reverse osmosis substance, this device hardly uses a heat source in the process of concentrating the salt water, resulting in low running costs.
図面は本装置の一実施例を示す説明図である。 The drawing is an explanatory diagram showing one embodiment of the present device.
Claims (1)
１）と、該タンク（１）から前記海水を供給し、該海水
中の塩素イオン及び塩分を除去した水のみが、透過する
逆浸透性物質を内装した脱塩装置（２）と、前記脱塩装
置（２）と前記タンク（１）との間を連結し、前記脱塩
水以外の濃縮塩水を前記タンク（１）に還流させる還流
ライン（３）と、前記脱塩水を前記脱塩装置（２）から
取り出す脱塩水ライン（４）と、を具備し、前記タンク
（１）内の最終的な前記濃縮塩水を固化処理してペース
ト状等にするように構成したことを特徴とする放射性物
質を含む海水の処理装置。 ２）前記最終的な濃縮塩水が乾燥蒸発されてその残滓を
固化するように構成した特許請求の範囲第１項記載の処
理装置[Claims] 1) A seawater receiving tank (
1), a desalination device (2) equipped with a reverse osmosis substance that supplies the seawater from the tank (1) and allows only the water from which chlorine ions and salts have been removed to pass through; A reflux line (3) connects the salt device (2) and the tank (1) and refluxes concentrated salt water other than the desalted water to the tank (1), and a reflux line (3) connects the desalted water to the desalted device ( 2), and is configured to solidify the final concentrated salt water in the tank (1) to form a paste or the like. Seawater treatment equipment, including: 2) The processing apparatus according to claim 1, which is configured to dry and evaporate the final concentrated brine and solidify its residue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61049272A JPS62206498A (en) | 1986-03-05 | 1986-03-05 | Processor for sea water containing radioactive substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61049272A JPS62206498A (en) | 1986-03-05 | 1986-03-05 | Processor for sea water containing radioactive substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62206498A true JPS62206498A (en) | 1987-09-10 |
Family
ID=12826203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61049272A Pending JPS62206498A (en) | 1986-03-05 | 1986-03-05 | Processor for sea water containing radioactive substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62206498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013124918A (en) * | 2011-12-14 | 2013-06-24 | Jgc Corp | Processing method of sea water waste contaminated with radionuclide |
| JP2014001952A (en) * | 2012-06-15 | 2014-01-09 | Kaken:Kk | Radionuclide decontamination system and radionuclide decontamination method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584586A (en) * | 1978-09-20 | 1980-06-25 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
-
1986
- 1986-03-05 JP JP61049272A patent/JPS62206498A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5584586A (en) * | 1978-09-20 | 1980-06-25 | Mitsubishi Heavy Ind Ltd | Treatment of waste water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013124918A (en) * | 2011-12-14 | 2013-06-24 | Jgc Corp | Processing method of sea water waste contaminated with radionuclide |
| JP2014001952A (en) * | 2012-06-15 | 2014-01-09 | Kaken:Kk | Radionuclide decontamination system and radionuclide decontamination method |
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