SE429698B - PROCEDURE FOR BINDING OF BIOLOGICAL DAMAGE WASTE - Google Patents
PROCEDURE FOR BINDING OF BIOLOGICAL DAMAGE WASTEInfo
- Publication number
- SE429698B SE429698B SE8005785A SE8005785A SE429698B SE 429698 B SE429698 B SE 429698B SE 8005785 A SE8005785 A SE 8005785A SE 8005785 A SE8005785 A SE 8005785A SE 429698 B SE429698 B SE 429698B
- Authority
- SE
- Sweden
- Prior art keywords
- densification
- waste
- milliseconds
- compacts
- binding
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000002699 waste material Substances 0.000 title claims description 7
- 238000000280 densification Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000002901 radioactive waste Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 1
- WJWSFWHDKPKKES-UHFFFAOYSA-N plutonium uranium Chemical compound [U].[Pu] WJWSFWHDKPKKES-UHFFFAOYSA-N 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/006—Radioactive compounds
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
8005785-4 2 för återupparbetning högradioaktiva heterogena och icke ströbara upplösningsåterstoder, som mâste.förtätas och bindas i en grund- massa. Dessa upplösningsåterstoder innehåller metallflingor, metallspân, korrosionsprodukter, skär- och slipmaterialrester samt i ringa mängder uran- och plutoniumhaltiga bränsleåter- stoder. 8005785-4 2 for reprocessing highly radioactive heterogeneous and non-dispersible solution residues, which must be densified and bound in a matrix. These dissolution residues contain metal flakes, metal chips, corrosion products, cutting and abrasive material residues as well as small amounts of uranium- and plutonium-containing fuel residues.
Till grund för uppfinningen ligger uppgiften att åstadkomma ett förfarande för överförande i fast form och förtätning av fasta eller i fast tillstånd överförda biologiskt skadliga, i synnerhet radioaktiva avfall genom pressning, som är oberoende av homogeniteten och ströbarhetsegenskaperna hos avfallsämnena' och kan genomföras på ett enkelt sätt.The invention is based on the object of providing a process for the solid transfer and densification of solid or solid state-transferred biologically harmful, in particular radioactive wastes by compression, which is independent of the homogeneity and dispersibility properties of the waste substances and can be carried out in a simple manner. way.
Denna uppgift löses enligt uppfinningen genom att avfallen överföres i ett sänke och att presskroppar framställes genom en slagartad förtätning inom en tidrymd av 3-500 millisekunder.This object is solved according to the invention by transferring the waste in a sink and press bodies being produced by a kind-like densification within a period of 3-500 milliseconds.
Det har helt överraskande visat sig att icke ströbara, inhomo- gena, biologiskt skadliga avfall kan införas i ett stålsänke och i detta slagartat förtätas till presskroppar, varvid för- tätnings- och utstötningsförloppet för presskroppen efter för- tätningen genomföres inom en tidrymd av några få millisekunder.It has been found, quite surprisingly, that non-dispersible, inhomogeneous, biologically harmful wastes can be introduced into a steel sink and in this kind are densified into compacts, whereby the sealing and expulsion process of the compaction after the compaction is carried out within a period of a few milliseconds.
Företrädesvis genomföres förtätningen inom en tidrymd av 3-50 millisekunder. Av fördel är härvid användning av temperaturer upp till 2300°C och tryck av mer än l kilobar.Preferably, the densification is performed within a period of 3-50 milliseconds. Advantageous is the use of temperatures up to 2300 ° C and pressures of more than 1 kilobar.
Av särskild fördel är vid förfarandet enligt uppfinningen den uppnåbara stora behandlingskapaciteten per tidsenhet på grund av de extremt korta förtätnings- och utstötningstiderna. Dessa snabba takttider tillåter vid hög behandlingsmängd per tids- enhet av avfallsmaterial förhållandevis små presskroppar. Häri- genom kan små presssänken och drivaggregat vara tillräckliga för genomförande av förtätningsförfarandet, vilka på ett gynn- samt sätt kan avskärmas, och kontamineringen minskas till ett minimum. På pressgodsets ströbarhet ställes inga krav. Man kan bearbeta material av godtycklig konstistens i den utsträckning de är torra. 80057854: Det är delvis även fördelaktigt att slutförtäta förpresskroppar med en täthet av mer än 40 % av den teoretiska tätheten med förfarandet enligt uppfinningen.Of particular advantage in the process according to the invention is the achievable large treatment capacity per unit of time due to the extremely short densification and ejection times. These fast beat times allow for a relatively high amount of treatment per unit time of waste material relatively small compacts. As a result, small press sinks and drive units can be sufficient for carrying out the densification process, which can be shielded in a favorable manner, and contamination is reduced to a minimum. There are no requirements for the spreadability of the press material. Materials of arbitrary consistency can be processed to the extent that they are dry. 80057854: It is partly also advantageous to final densify pre-compression bodies with a density of more than 40% of the theoretical density with the method according to the invention.
Förfarandet enligt uppfinningen beskrives närmare med följande utföringsexempel. l. Såsom modellsubstans för en högradioaktiv avfallsprodukt användes en icke ströbar pulverblandning av urandioxid, alumi- niumoxid, zirkoniumoxid, molybdenpulver och zirkoniumspân av olika sammansättning. Blandningarna införes i ett stâlsänke med en diameter av 8 mm och förtätas med en slaghammare med 8 kilobar och utstötes omedelbart därefter så att hela för- loppet förlöper inom en tidrymd av 5 millisekunder. Efter ut- stötning uppgick diametern hos presskroppen till 8 mm, höjden till 10 mm och tätheten till mer än 90 % av den teoretiska tät- heten. 2. Analogt med exempel l upphettades pulverblandningarna före förtätningen till l200°C och pressades därefter på det i exem- pel l angivna sättet. Presskroppen uppvisade härvid en täthet av mer än 95 % av den teoretiska tätheten.The method according to the invention is described in more detail with the following exemplary embodiments. As a model substance for a high-level radioactive waste product, a non-dispersible powder mixture of uranium dioxide, alumina, zirconia, molybdenum powder and zirconium chips of various compositions was used. The mixtures are introduced into a steel sink with a diameter of 8 mm and densified with an impact hammer with 8 kilobars and ejected immediately afterwards so that the entire process proceeds within a period of 5 milliseconds. After ejection, the diameter of the compact was 8 mm, the height 10 mm and the density more than 90% of the theoretical density. 2. In analogy to Example 1, the powder mixtures were heated before pre-densification to 1200 DEG C. and then pressed in the manner described in Example 1. The compression body showed a density of more than 95% of the theoretical density.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792933503 DE2933503A1 (en) | 1979-08-18 | 1979-08-18 | METHOD FOR STRENGTHENING BIOS-HARMFUL WASTE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8005785L SE8005785L (en) | 1981-02-19 |
| SE429698B true SE429698B (en) | 1983-09-19 |
Family
ID=6078759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8005785A SE429698B (en) | 1979-08-18 | 1980-08-15 | PROCEDURE FOR BINDING OF BIOLOGICAL DAMAGE WASTE |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5630700A (en) |
| DE (1) | DE2933503A1 (en) |
| FR (1) | FR2463971A1 (en) |
| GB (1) | GB2056361A (en) |
| SE (1) | SE429698B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57196199A (en) * | 1981-05-28 | 1982-12-02 | Kobe Steel Ltd | Method of volume-decreasing and solidifying radioactive waste ash and the like |
| JPS61181140A (en) * | 1985-02-06 | 1986-08-13 | Nec Corp | Semiconductor device and manufacture thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3000072A (en) * | 1959-08-20 | 1961-09-19 | Ca Atomic Energy Ltd | Process of containing and fixing fission products |
| US3276867A (en) * | 1964-05-05 | 1966-10-04 | Daniel W Brite | Cermet materials and process of making |
| DE2243136C3 (en) * | 1972-09-01 | 1980-03-27 | Nukem Gmbh, 6450 Hanau | Process and device for packaging solid radioactive or toxic waste |
| DE2659691C2 (en) * | 1976-12-31 | 1985-11-14 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Plant for pressing radioactive waste in a barrel |
-
1979
- 1979-08-18 DE DE19792933503 patent/DE2933503A1/en not_active Withdrawn
-
1980
- 1980-06-27 FR FR8014448A patent/FR2463971A1/en active Granted
- 1980-08-13 JP JP11046080A patent/JPS5630700A/en active Pending
- 1980-08-15 SE SE8005785A patent/SE429698B/en unknown
- 1980-08-15 GB GB8026759A patent/GB2056361A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2463971A1 (en) | 1981-02-27 |
| JPS5630700A (en) | 1981-03-27 |
| FR2463971B1 (en) | 1984-03-23 |
| GB2056361A (en) | 1981-03-18 |
| DE2933503A1 (en) | 1981-03-26 |
| SE8005785L (en) | 1981-02-19 |
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