JPS59179187A - Chlorine ion remover in radioactive waste liquid - Google Patents
Chlorine ion remover in radioactive waste liquidInfo
- Publication number
- JPS59179187A JPS59179187A JP5471783A JP5471783A JPS59179187A JP S59179187 A JPS59179187 A JP S59179187A JP 5471783 A JP5471783 A JP 5471783A JP 5471783 A JP5471783 A JP 5471783A JP S59179187 A JPS59179187 A JP S59179187A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- chlorine
- ions
- chlorine ion
- column
- 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.)
- Granted
Links
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、例えば原子力発電プラントにおいて生ずる放
射性廃液中の塩素イオンを除去するための装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an apparatus for removing chloride ions from radioactive waste liquid produced, for example, in a nuclear power plant.
［発明の技術的背崇とその問題点］
原子力発電プラントにおいては、二次冷却水とじで海水
を使用しており、この海水がリークして原子カプラント
内に流入した場合、プラントから排出される廃液中には
腐蝕性の塩素イオンが含有されるようになるため、この
ような廃液は蒸発濃縮器で処理することができないとい
う問題があった。[Technical defamation of the invention and its problems] In nuclear power plants, seawater is used for secondary cooling water, and if this seawater leaks and flows into the nuclear coupler, it will be discharged from the plant. Since the waste liquid contains corrosive chlorine ions, there is a problem in that such waste liquid cannot be treated with an evaporative concentrator.
本発明者等はこのような問題を解決するために、先に放
射性廃液中の塩素イオンをビスマス化合物に吸着させて
除去する方法を提案したが、この方法においＣは廃液中
にナトリウムイオンやＦｅ２Ｏ３等の不溶解固形分が存
在すると塩素イオンの除去効果が非常に低下するという
難点があった。In order to solve this problem, the present inventors previously proposed a method of removing chlorine ions in radioactive waste liquid by adsorbing them to a bismuth compound. There is a problem in that the presence of undissolved solids such as chloride ions greatly reduces the effectiveness of removing chlorine ions.
第１図および第２図はこの状況を示すグラフであり、第
１図は２０００ｐｐｍの塩素イオンを有する１）Ｈ７の
溶液にＦｅ２（、）：＋を添加して、水酸化ヒスマスの
塩素イオン吸＠桁を温度２５℃、浸漬時間２４時間の条
件下で測定した結果を、また第２図は２３００ ｐｐｍ
の塩素イオンを有するＩ）Ｉ−１２の溶液でナトリウム
イオンを含む液（曲線Ａ）およびナトリウムイオンを含
まない液（曲線Ｂ）についＣ１水酸化ビスマスを充填し
たカラムにて０゜１ｍ／ｈｒの通水速度で処理した場合
の処理液量（＋＋ｌ／（１−Ｂｉ （ＯＨ）３ ）
、カラム出口塩素ｍ度（μ（１／ｍｆ＞をぞれぞれ測定
した結果を示している。Figures 1 and 2 are graphs showing this situation. Figure 1 shows the absorption of chloride ions by hismuth hydroxide by adding Fe2(,):+ to a solution of 1) H7 containing 2000 ppm of chloride ions. Figure 2 shows the results of measuring the @digit under the conditions of a temperature of 25°C and a immersion time of 24 hours.
A solution of I) I-12 containing sodium ions (curve A) and a solution containing no sodium ions (curve B) was heated at 0°1 m/hr in a column packed with C1 bismuth hydroxide. Processing liquid volume when processing at water flow rate (++l/(1-Bi (OH)3)
, column outlet chlorine degree (μ(1/mf)) are shown.
これらのグラフから明らかなように、被処理液中にＦｅ
２Ｏ３やナトリウムイオンが存在すると水酸化ビスマス
による塩素イオン吸着作用は、存在しない場合に比較し
Ｃかなり低下するようになる。As is clear from these graphs, Fe is present in the liquid to be treated.
When 2O3 or sodium ions are present, the chloride ion adsorption effect of bismuth hydroxide is considerably lower than when they are not present.
［発明の目的］
本発明はかかる点に対処してなされたもので、塩素イオ
ン除去装置の前段に、予め放射性廃液中の不溶解固形分
くクラッド）およびナトリウムイオンを除去する手段を
設けることにより、効率よく廃液中の塩素イオンを除去
する装置を提供することを目的とする。[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and by providing a means for removing insoluble solids (crud) and sodium ions in radioactive waste liquid in advance of the chlorine ion removal device, An object of the present invention is to provide a device that efficiently removes chlorine ions from waste liquid.
［発明の概要］
すなわち本発明は、塩素イオンを含む放射性廃液を収容
する廃液収容槽と、前記廃液中のクラッドを除去し陽イ
オンを水素イオンと置換する陽イオン交換およびクラッ
ド除去装置と、前記陽イオン交換およびクラッド除去装
置により処理された廃液中の塩素イオンを吸着するため
のビスマス化合物を収容した塩素イオン吸着装置とを備
えたことを特徴とする放射性廃液中の塩素イオン除去装
置である。[Summary of the Invention] That is, the present invention provides a waste liquid storage tank that stores radioactive waste liquid containing chlorine ions, a cation exchange and crud removal device that removes crud in the waste liquid and replaces cations with hydrogen ions, and This is a device for removing chlorine ions from radioactive waste liquid, characterized by comprising a chlorine ion adsorption device containing a bismuth compound for adsorbing chlorine ions in the waste liquid treated by the cation exchange and crud removal device.
［発明の実施例］
以ＩＺ本発明の詳細を図面に示す一実施例について説明
する。[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第３図に本発明の塩素イオン除去装置の一実施例の概略
を示す。図中符号１は廃液収容槽で、この中にリーク海
水やリーク海水を処理した脱塩器再生廃液あるいは床ド
レン廃液等の含塩素イオンイオン廃液２が一口収容され
る。符号３は陽イオン交換樹脂を充填したカラムで、廃
液収容槽１中の含塩素イオン廃液２がポンプ４によって
送り込まれる。陽イオン交換樹脂カラム３を通過した含
塩素イオン廃液は、耐酸性の配管５を通って塩素イオン
吸着駅間、すなわちどスマス酸またはその塩あるいは水
酸化ビスマス、酸化ビスマス等のビスマス化合物か充填
されたカラム６に送り込まれ、次いでこのビスマス化合
物カラム６を通過した廃液は、一旦受タンク７に収容さ
れた後蒸発瀾縮装置８へ送られ、１農縮減容される。FIG. 3 schematically shows an embodiment of the chlorine ion removal apparatus of the present invention. Reference numeral 1 in the figure denotes a waste liquid storage tank, in which a portion of chlorine-containing ion waste liquid 2 such as leak seawater, demineralizer recycled waste liquid after treating leak seawater, or floor drain waste liquid is stored. Reference numeral 3 denotes a column filled with a cation exchange resin, into which the chlorine-containing ion waste liquid 2 in the waste liquid storage tank 1 is sent by a pump 4 . The chlorine-containing waste liquid that has passed through the cation exchange resin column 3 is passed through an acid-resistant pipe 5 between the chlorine ion adsorption stations, which is filled with smuth acid or its salts, or bismuth compounds such as bismuth hydroxide and bismuth oxide. The waste liquid that has passed through the bismuth compound column 6 is once stored in a receiving tank 7 and then sent to an evaporation condensation device 8 where the volume is reduced by one size.
以上のように構成された装置の作用について次に説明す
る。The operation of the apparatus configured as above will be explained next.
まず、原子力ｙｈ’ｉブラン１〜で発生した含塩素イオ
ン廃液２は、一旦廃液収容槽１に収容された後ポンプ４
により適切な通水速度にて陽イオン交換樹脂カラム３に
通水される。この陽イオン交換樹脂カラム３において、
Ｐ？ｉ！液中の陽イオンが水素イオンに交換されるとと
もにクラッドも除去される。First, the chlorine-containing ion waste liquid 2 generated from the nuclear energy yh'i bran 1 is stored in the waste liquid storage tank 1 and then pumped into the
Water is passed through the cation exchange resin column 3 at an appropriate water passing rate. In this cation exchange resin column 3,
P? i! The cations in the liquid are exchanged with hydrogen ions and the cladding is also removed.
陽イオン交換樹脂カラム３を通過した廃液は、酸性とな
るため耐酸性の配管５を通ってビスマス化合物カラム６
に通水される。このビスマス化合物カラム６において廃
液中の塩素イオンはビスマス化合物によって吸＠され、
このカラム６を通過した処理水は塩素イオンを除去され
てほぼ中性付近の１１ＨになっＣ受タンク７に収容され
る。The waste liquid that has passed through the cation exchange resin column 3 becomes acidic and is passed through acid-resistant piping 5 to a bismuth compound column 6.
water is passed through. In this bismuth compound column 6, chlorine ions in the waste liquid are absorbed by the bismuth compound,
The treated water that has passed through the column 6 has chlorine ions removed, becomes approximately neutral 11H, and is stored in the C receiving tank 7.
従って、この塩素イオン除去装置にＪ：れば、陽イオン
交換樹脂により予め廃液中のクラッドおよびナトリウム
イオンが除去されるため、第１図および第２図に示すよ
うに、ビスマス化合物への塩素イオン吸着効果が改善さ
れ、塩素イオン除去効率が大幅に向上する。さらに陽イ
オン交換樹脂を通過した廃液は酸性になるため、第４図
に示すように塩素イオン吸＠闇が増大する。Therefore, if this chlorine ion removal device is used, crud and sodium ions in the waste liquid are removed in advance by the cation exchange resin, so as shown in Figures 1 and 2, chlorine ions are added to the bismuth compound. The adsorption effect is improved and the chloride ion removal efficiency is greatly improved. Furthermore, since the waste liquid that has passed through the cation exchange resin becomes acidic, the absorption of chlorine ions increases as shown in FIG.
第４図は２００ ｐｐｍの塩素イオンを含む液のｐＨを
変化させて、２５℃の液温にて水酸化ビスマスを２４時
間浸漬して水酸化ビスマスへの塩素吸’ｅｉｆｉ （ｍ
ｅｏ ／Ｑ−Ｂ ｉ （ＯＨ） ３ ） ヲｆｌｌ’
ｌ定シタＭｉ果を示すものである。Figure 4 shows how bismuth hydroxide was immersed for 24 hours at a temperature of 25°C while changing the pH of a solution containing 200 ppm of chlorine ions.
eo /Q-B i (OH) 3) wofl'
This shows the constant results.
また、さらにビスマス化合物にて吸着処理された廃液は
、第５図に示すように、再び中性付近になるため中和操
作が不要である。但し安全性を考慮し、前記受タンク７
に中和装置を設けてもよい。Moreover, the waste liquid that has been further adsorbed with a bismuth compound becomes near neutral again as shown in FIG. 5, so that a neutralization operation is not necessary. However, considering safety, the receiving tank 7
A neutralization device may be provided.
ここで第５図は第２図において、曲線ａで示した１）ｌ
−（２の塩素イオン濃度が２３００ ｐｐｍのＮａＣβ
溶液のカラム出口ｐ ｌ−１を測定した結果を示す。Here, FIG. 5 shows 1) l shown by curve a in FIG. 2.
-(NaCβ with a chloride ion concentration of 2300 ppm
The results of measuring the column outlet p l-1 of the solution are shown.
なおポンプ４は両力ラム３．６に対し最適な通水速度ど
なるように選定されるが、両力ラム３．６の最適通水速
度が著しく異なる場合は、両力ラム３と６の間に耐酸性
の受タンクおよびポンプを設置してもよい。The pump 4 is selected to have the optimum water flow rate for the double force rams 3.6, but if the optimum water flow speed for the double force rams 3.6 is significantly different, the pump 4 is selected to have the optimum water flow rate between the double force rams 3 and 6. An acid-resistant receiving tank and pump may be installed.
［発明の効果］
以上の説明からも明らかなように本発明によれば、塩素
イオン吸着処理の前に廃液中の陽イオンが水素イオンに
置換されかつクラッドを除去されることにより、ビスマ
ス化合物への塩素イオン吸着効果は著しく改善される。[Effects of the Invention] As is clear from the above description, according to the present invention, cations in the waste liquid are replaced with hydrogen ions and cladding is removed before the chloride ion adsorption treatment, thereby converting the bismuth compound into a bismuth compound. The chloride ion adsorption effect of is significantly improved.
さらにビスマス化合物によって処理された廃液のｐＨは
ほぼ中性刊近となるため、その後の中和操作が不要とな
るとともに、塩素イオンが効率よく除去されて蒸発濃縮
装置が可能となる。Furthermore, since the pH of the waste liquid treated with the bismuth compound becomes approximately neutral, a subsequent neutralization operation is not necessary, and chlorine ions are efficiently removed, making it possible to use an evaporative concentration device.
第１図はクラッドが存在した場合の塩素イオンイオンが
存在した時としない時の水酸化ビスマスを充填したカラ
ムの出ロ塩素イオン流度の処理液間に関する変化を示す
グラフ、第３図は本発明の一実施例を示すグロック図、
第４図はｐ１→による塩素イオン吸着量の変化を示すグ
ラフ、第５図はｐ（−１の含塩素溶液の塩素イオン吸着
処理後のｐｌ−１を示すグラフである。
１・・・・・・・・・・・・廃液収容槽３・・・・・・
・・・・・・陽イオン交換樹脂カラム５・・・・・・・
・・・・・ビスマス化合物カラム８・・・・・・・・・
・・・蒸発濃縮装置代理人弁理士 須 山 佐 −Figure 1 is a graph showing the change in the flow rate of chlorine ions from a column filled with bismuth hydroxide with and without chloride ions in the presence of crud, and Figure 3 is a graph showing the changes in the flow rate of chlorine ions between the treated solutions. A Glock diagram showing an embodiment of the invention,
Fig. 4 is a graph showing the change in the adsorption amount of chlorine ions due to p1→, and Fig. 5 is a graph showing pl-1 after chloride ion adsorption treatment of a chlorine-containing solution of p(-1.1... ...... Waste liquid storage tank 3...
...Cation exchange resin column 5...
...Bismuth compound column 8...
...Patent attorney representing evaporation concentrator Sasa Suyama −
Claims (2)
槽と、前記廃液中のクラッドを除去し陽イオンを水素イ
Ａンと置換する陽イオン交換およびクラッド除去装置と
、前記陽イオン交換およびクラット除去装置により処理
された廃液中の塩素イオンを吸着するだめのビスマス化
合物を収容した塩素イオン吸＠装置とを備えたことを特
徴とする放射性廃液中の塩素イオン除去装置。(1) A waste liquid storage tank containing a synthetic waste liquid containing chloride ions, a cation exchange and crud removal device that removes crud in the waste liquid and replaces cations with hydrogen ions, and the cation exchanger. and a chlorine ion absorption device containing a bismuth compound for adsorbing chlorine ions in the waste liquid treated by the crat removal device.
ン交換樹脂を充填した陽イオーン交換樹脂カラムＣ゛あ
る特許請求の範囲第１項記載の放射性廃液中の塩素イオ
ン除去装置。(2) A device for removing chlorine ions from radioactive waste liquid according to claim 1, wherein the cation exchange and crud removal device is a cation exchange resin column C filled with a cation exchange resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5471783A JPS59179187A (en) | 1983-03-30 | 1983-03-30 | Chlorine ion remover in radioactive waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5471783A JPS59179187A (en) | 1983-03-30 | 1983-03-30 | Chlorine ion remover in radioactive waste liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59179187A true JPS59179187A (en) | 1984-10-11 |
| JPH0563240B2 JPH0563240B2 (en) | 1993-09-10 |
Family
ID=12978553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5471783A Granted JPS59179187A (en) | 1983-03-30 | 1983-03-30 | Chlorine ion remover in radioactive waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59179187A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127196A (en) * | 1986-11-17 | 1988-05-31 | 株式会社東芝 | Seawater waste liquid transporter |
| US5667754A (en) * | 1995-09-25 | 1997-09-16 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
| US5683914A (en) * | 1995-09-25 | 1997-11-04 | Hach Company | Method for chloride ion removal prior to chemical oxygen demand analysis |
| JP2011115772A (en) * | 2009-10-26 | 2011-06-16 | Toshiba Corp | Method and apparatus for treating waste liquid |
-
1983
- 1983-03-30 JP JP5471783A patent/JPS59179187A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127196A (en) * | 1986-11-17 | 1988-05-31 | 株式会社東芝 | Seawater waste liquid transporter |
| US5667754A (en) * | 1995-09-25 | 1997-09-16 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
| US5683914A (en) * | 1995-09-25 | 1997-11-04 | Hach Company | Method for chloride ion removal prior to chemical oxygen demand analysis |
| US5932174A (en) * | 1995-09-25 | 1999-08-03 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
| JP2011115772A (en) * | 2009-10-26 | 2011-06-16 | Toshiba Corp | Method and apparatus for treating waste liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0563240B2 (en) | 1993-09-10 |
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