EP0257159A3 - Dewatering nuclear wastes - Google Patents
Dewatering nuclear wastes Download PDFInfo
- Publication number
- EP0257159A3 EP0257159A3 EP86307775A EP86307775A EP0257159A3 EP 0257159 A3 EP0257159 A3 EP 0257159A3 EP 86307775 A EP86307775 A EP 86307775A EP 86307775 A EP86307775 A EP 86307775A EP 0257159 A3 EP0257159 A3 EP 0257159A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- container
- dewatering
- water
- volume
- 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.)
- Withdrawn
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
- G21F9/08—Processing by evaporation; by distillation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A method of predictably dewatering a slurry that contains
radioactive particles to a condition for safe permanent storage. Interstitial
water is removed from the slurry, and then a sufficient quantity of adsorbed
water is removed from the particles so that at the permanent storage temper
ature the particles will be just unsaturated with respect to adsorbed water. The
dewatering endpoint is set to at least unsaturate the particles at the permanent
storage temperature. This minimum volume of adsorbed water removal is
necessary to assure the subsequent uptake of any condensed water that develops
during storage in a sealed container. An upper dewatering endpoint is preferably
set so that the volume of adsorbed water removed from the particles does not
excessively unsaturate the particles, so that the sealed storage container that
eventually confines the dewatered particles will not burst if the particles later
become exposed to ambient water or water vapor. This upper dewatering limit is
both particle- and container-specific and is set to assure that any increase in
particle volume, if the particular particles become further hydrated at the
permanent storage temperature, will not exceed the volume of compressible gas,
typically air but alternatively an inert gas, in the particular container.
Systems and apparatuses for dewatering nuclear wastes are also
provided. In one embodiment, a disposable container with a top region and a
bottom region is provided with a waste influent port for introducing a slurry of
radioactive particles into the container bottom region and with an air inlet port
for introducing relatively dry air into the container top region. A vapor
collector manifold is selectively disposed in the container bottom region to draw
air uniformly through the particle bed. A vapor outlet port, connected to the
vapor collector manifold, is provided to remove the humidified air that has
passed through the particle bed from the container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US899426 | 1986-08-21 | ||
| US89942686A | 1986-08-22 | 1986-08-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0257159A2 EP0257159A2 (en) | 1988-03-02 |
| EP0257159A3 true EP0257159A3 (en) | 1989-04-26 |
Family
ID=25410948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86307775A Withdrawn EP0257159A3 (en) | 1986-08-21 | 1986-10-08 | Dewatering nuclear wastes |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0257159A3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0791814A3 (en) * | 1997-05-26 | 1997-11-26 | Martin Lehmann | Method for leak testing and leak testing apparatus |
| CN112275452B (en) * | 2020-10-09 | 2022-05-06 | 永丰县天宝矿业有限公司 | Efficient recycling method for fluorite ore mining tailings |
| JP7548139B2 (en) * | 2021-06-23 | 2024-09-10 | トヨタ自動車株式会社 | Tank and its manufacturing method |
| CN115015527B (en) * | 2022-06-10 | 2023-12-22 | 山东理工大学 | Experimental device and experimental method for simulating high pressure of deep cone thickener |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1614497A1 (en) * | 1967-04-12 | 1970-08-20 | Siemens Ag | Process for the concentration of radioactive waste |
| US4040973A (en) * | 1974-01-03 | 1977-08-09 | Magyar Tudomanyos Akademia Izotop Intezete | Process and apparatus for the concentration and storage of liquid radioactive wastes |
| EP0196843A1 (en) * | 1985-03-22 | 1986-10-08 | Nuclear Packaging, Inc. | Dewatering nuclear wastes |
-
1986
- 1986-10-08 EP EP86307775A patent/EP0257159A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1614497A1 (en) * | 1967-04-12 | 1970-08-20 | Siemens Ag | Process for the concentration of radioactive waste |
| US4040973A (en) * | 1974-01-03 | 1977-08-09 | Magyar Tudomanyos Akademia Izotop Intezete | Process and apparatus for the concentration and storage of liquid radioactive wastes |
| EP0196843A1 (en) * | 1985-03-22 | 1986-10-08 | Nuclear Packaging, Inc. | Dewatering nuclear wastes |
Non-Patent Citations (1)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 82, no. 10, 10th March 1975, page 446, no. 64141x, Columbus, Ohio, US; & HU-A-8 973 (EROMU ES HALOZATTERVEZO VALLALAT; MAGYAR TUDOMANYOS AKADEMIA IZOTOP INTEZETE) 28-10-1974 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0257159A2 (en) | 1988-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
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| 17P | Request for examination filed |
Effective date: 19891023 |
|
| 17Q | First examination report despatched |
Effective date: 19911114 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19920404 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: TEMUS, CHARLES J. Inventor name: BURNHAM, RONALD E. Inventor name: ALLAN, GREGORY R. |