WO2018056869A3 - Method for deactivating radioactive ion-exchange resins - Google Patents
Method for deactivating radioactive ion-exchange resins Download PDFInfo
- Publication number
- WO2018056869A3 WO2018056869A3 PCT/RU2017/000699 RU2017000699W WO2018056869A3 WO 2018056869 A3 WO2018056869 A3 WO 2018056869A3 RU 2017000699 W RU2017000699 W RU 2017000699W WO 2018056869 A3 WO2018056869 A3 WO 2018056869A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ion
- exchange resins
- radioactive
- deactivating
- ier
- 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.)
- Ceased
Links
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
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention "Method for deactivating radioactive ion-exchange resins" relates to the field of radioactive waste treatment, and more particularly to the deactivation of spent ion-exchange resins (IER). The technical result of this invention consists in completely deactivating ion-exchange resins and minimizing the quantity of secondary radioactive waste that is formed. The technical result of the claimed invention is achieved in that spent radioactive ion-exchange resins are treated with solutions of alkali metal salts having a concentration of from 3 to 5 moles/liter and a pH of from 8 to 12, with the addition of an oxidizing agent as the IERs are simultaneously exposed to ultrasonic oscillations with an intensity of from 2 to 5 W/cm2 and a frequency of from 22 to 44 kHz at a temperature of from 50 to 80°С. The radioactive solution formed upon desorption is purified by selective sorbents placed in filtration columns. The deactivated ion-exchange resin is transferred to an industrial waste disposal site, and the deactivating solution, which is purified with selective sorbents, is sent, once its composition has been corrected, for re-use, i.e. for removing radionuclides from the next batch of IER.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2016137930 | 2016-09-22 | ||
| RU2016137930A RU2631942C1 (en) | 2016-09-22 | 2016-09-22 | Method of deactivating radioactive ion-exchange resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2018056869A2 WO2018056869A2 (en) | 2018-03-29 |
| WO2018056869A3 true WO2018056869A3 (en) | 2018-06-14 |
Family
ID=60040819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2017/000699 Ceased WO2018056869A2 (en) | 2016-09-22 | 2017-09-22 | Method for deactivating radioactive ion-exchange resins |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2631942C1 (en) |
| WO (1) | WO2018056869A2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4389253A (en) * | 1980-10-30 | 1983-06-21 | Hitachi, Ltd. | Process for removing crud from ion exchange resin |
| US4401591A (en) * | 1980-01-31 | 1983-08-30 | Asea Aktiebolag | Treatment of organic ion exchange material containing radioactive waste products |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3849196A (en) * | 1970-05-20 | 1974-11-19 | Gen Electric | Ultrasonic cleaning of resin |
| DE2607292C2 (en) * | 1976-02-23 | 1985-08-29 | Kraftwerk Union AG, 4330 Mülheim | Process for the removal of radioactive corrosion products from ion exchange resins used in nuclear reactor operation |
-
2016
- 2016-09-22 RU RU2016137930A patent/RU2631942C1/en not_active IP Right Cessation
-
2017
- 2017-09-22 WO PCT/RU2017/000699 patent/WO2018056869A2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401591A (en) * | 1980-01-31 | 1983-08-30 | Asea Aktiebolag | Treatment of organic ion exchange material containing radioactive waste products |
| US4389253A (en) * | 1980-10-30 | 1983-06-21 | Hitachi, Ltd. | Process for removing crud from ion exchange resin |
Non-Patent Citations (1)
| Title |
|---|
| A. D. ZIMON: "Desaktivatsiya", vol. 336, 1994, IZDAT, Moscow, pages: 167 - 175 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2631942C1 (en) | 2017-09-29 |
| WO2018056869A2 (en) | 2018-03-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
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