FR2394155A1 - Solidifying aq. radioactive scrap for storage - by mixing with clay and cement, moulding into e.g. pellets, and sintering to form insol. minerals (J5 19.1.79) - Google Patents

Solidifying aq. radioactive scrap for storage - by mixing with clay and cement, moulding into e.g. pellets, and sintering to form insol. minerals (J5 19.1.79)

Info

Publication number
FR2394155A1
FR2394155A1 FR7817361A FR7817361A FR2394155A1 FR 2394155 A1 FR2394155 A1 FR 2394155A1 FR 7817361 A FR7817361 A FR 7817361A FR 7817361 A FR7817361 A FR 7817361A FR 2394155 A1 FR2394155 A1 FR 2394155A1
Authority
FR
France
Prior art keywords
clay
cement
insol
minerals
pellets
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
Application number
FR7817361A
Other languages
French (fr)
Other versions
FR2394155B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Forschungszentrum Karlsruhe GmbH
Original Assignee
Kernforschungszentrum Karlsruhe GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE2726087A external-priority patent/DE2726087C2/en
Priority claimed from DE2819085A external-priority patent/DE2819085C3/en
Application filed by Kernforschungszentrum Karlsruhe GmbH filed Critical Kernforschungszentrum Karlsruhe GmbH
Publication of FR2394155A1 publication Critical patent/FR2394155A1/en
Application granted granted Critical
Publication of FR2394155B1 publication Critical patent/FR2394155B1/en
Expired legal-status Critical Current

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
    • G21F9/16—Processing by fixation in stable solid media
    • G21F9/162—Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
    • G21F9/165—Cement or cement-like matrix
    • 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
    • G21F9/301—Processing by fixation in stable solid media
    • G21F9/302—Processing by fixation in stable solid media in an inorganic matrix

Abstract

The scrap consists of a conc. aq. soln. or suspension, which may contain actinides, and which is evapd. to obtain a concentrate (A) contg. 40-80% solids, including 10-30% metal- ions and/or -oxides; and the pH is adjusted to 5-10. (A) is mixed with a clay (B) contg. cement or an additive suppressing the volatility of alkali(ne earth) metals or the decomposable ions SO4, PO4, molybdates and/or uranates. The mixt. has wt. ratio (A):(B) of 1:1 to 2:1. Mixt (AB) is moulded, the mouldings being dried at =150 degrees C.; calcined at =800 degrees C.; sintered at 800-1400 degrees C. to form insol. minerals; and continuously encapsulated in a sealed ceramic or metallic mass. Material (B) is pref. 10 pts. wt. clay with 1-2 pts. wt. cement contg. 20-30% SiO2 and 40-70% CaO. The mouldings (AB) may consist of pellets.
FR7817361A 1977-06-10 1978-06-09 PROCESS FOR THE SOLIDIFICATION OF AQUEOUS RADIOACTIVE WASTE Expired FR2394155B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2726087A DE2726087C2 (en) 1977-06-10 1977-06-10 Process for the final disposal-ready, environmentally friendly solidification of "and moderately radioactive and / or actinide-containing, aqueous waste concentrates or of fine-grained solid waste suspended in water
DE2819085A DE2819085C3 (en) 1978-04-29 1978-04-29 Process for the environmentally friendly solidification of highly and moderately radioactive and / or actinide-containing aqueous waste concentrates or of fine-grain solid waste suspended in water in a manner that is ready for final disposal

Publications (2)

Publication Number Publication Date
FR2394155A1 true FR2394155A1 (en) 1979-01-05
FR2394155B1 FR2394155B1 (en) 1985-12-27

Family

ID=25772123

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817361A Expired FR2394155B1 (en) 1977-06-10 1978-06-09 PROCESS FOR THE SOLIDIFICATION OF AQUEOUS RADIOACTIVE WASTE

Country Status (2)

Country Link
JP (1) JPS547100A (en)
FR (1) FR2394155B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472818A1 (en) * 1979-11-08 1981-07-03 Kernforschungsz Karlsruhe PROCESS FOR SOLIDIFICATION FOR ENVIRONMENTALLY FIXED END STORAGE OF RADIOACTIVE ION EXCHANGE RESINS IN CEMENT BLOCKS
RU2610901C1 (en) * 2015-09-01 2017-02-17 Андрей Владимирович Кисляков Composition for cementing liquid radioactive wastes
EP3570293A4 (en) * 2017-01-16 2020-10-28 State Atomic Energy Corporation "Rosatom" on Behalf of The Russian Federation Method of handling radioactive solutions

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214242A1 (en) * 1982-04-17 1983-10-20 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe METHOD FOR IMPROVING THE PROPERTIES OF RADIOACTIVE WASTE REINFORCEMENTS REQUIRED FOR LONG TERM STORAGE
FI71625C (en) * 1982-04-30 1987-01-19 Imatran Voima Oy Process for ceramics of radioactive waste.
JPS5996036A (en) * 1982-11-22 1984-06-02 Toyota Motor Corp Brake force holding method of vehicle
JPS61191999A (en) * 1985-02-20 1986-08-26 動力炉・核燃料開発事業団 Method of stabilizing and treating uranium slag or uranium smelting waste slag
JPH0778257B2 (en) * 1985-03-08 1995-08-23 新日本製鐵株式会社 Sintered ore manufacturing method
JPS6243067U (en) * 1985-09-04 1987-03-14
JPS63167539U (en) * 1987-04-21 1988-11-01
WO2009132268A1 (en) 2008-04-24 2009-10-29 3M Innovative Properties Company Analysis of nucleic acid amplification curves using wavelet transformation
JP6067497B2 (en) * 2013-07-05 2017-01-25 株式会社東芝 Production method of solidified radioactive waste

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285130A (en) * 1959-01-19 1962-02-16 Method and device for the removal or solidification of aqueous atomic waste
US3093593A (en) * 1958-07-14 1963-06-11 Coors Porcelain Co Method for disposing of radioactive waste and resultant product
US3249551A (en) * 1963-06-03 1966-05-03 David L Neil Method and product for the disposal of radioactive wastes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343241A1 (en) * 1973-08-28 1975-03-06 Bayer Ag METHOD FOR CONSOLIDATING RADIOACTIVE WASTE SOLUTIONS
FR2266264A1 (en) * 1974-04-02 1975-10-24 Us Energy Radioactive isotopes entrapped in cancrinite - to protect the environment, by reacting caustic liquor with clay and sodium nitrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3093593A (en) * 1958-07-14 1963-06-11 Coors Porcelain Co Method for disposing of radioactive waste and resultant product
FR1285130A (en) * 1959-01-19 1962-02-16 Method and device for the removal or solidification of aqueous atomic waste
US3249551A (en) * 1963-06-03 1966-05-03 David L Neil Method and product for the disposal of radioactive wastes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472818A1 (en) * 1979-11-08 1981-07-03 Kernforschungsz Karlsruhe PROCESS FOR SOLIDIFICATION FOR ENVIRONMENTALLY FIXED END STORAGE OF RADIOACTIVE ION EXCHANGE RESINS IN CEMENT BLOCKS
RU2610901C1 (en) * 2015-09-01 2017-02-17 Андрей Владимирович Кисляков Composition for cementing liquid radioactive wastes
EP3570293A4 (en) * 2017-01-16 2020-10-28 State Atomic Energy Corporation "Rosatom" on Behalf of The Russian Federation Method of handling radioactive solutions

Also Published As

Publication number Publication date
FR2394155B1 (en) 1985-12-27
JPS6120839B2 (en) 1986-05-23
JPS547100A (en) 1979-01-19

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Legal Events

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