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FR2423035A1 - Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete - Google Patents

Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete

Info

Publication number
FR2423035A1
FR2423035A1 FR7810963A FR7810963A FR2423035A1 FR 2423035 A1 FR2423035 A1 FR 2423035A1 FR 7810963 A FR7810963 A FR 7810963A FR 7810963 A FR7810963 A FR 7810963A FR 2423035 A1 FR2423035 A1 FR 2423035A1
Authority
FR
France
Prior art keywords
cement
radioactive
asbestos
suspension
pptes
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
FR7810963A
Other languages
French (fr)
Other versions
FR2423035B1 (en
Inventor
Jean Taponier
Rene Pierlas
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.)
Societe Generale pour les Techniques Nouvelles SA SGN
Original Assignee
Societe Generale pour les Techniques Nouvelles SA SGN
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
Application filed by Societe Generale pour les Techniques Nouvelles SA SGN filed Critical Societe Generale pour les Techniques Nouvelles SA SGN
Priority to FR7810963A priority Critical patent/FR2423035A1/en
Priority to SE7902685A priority patent/SE7902685L/en
Priority to US06/028,453 priority patent/US4293437A/en
Priority to GB7912560A priority patent/GB2022312B/en
Priority to ES479571A priority patent/ES479571A1/en
Priority to BE0/194569A priority patent/BE875535A/en
Priority to IT67777/79A priority patent/IT1118452B/en
Priority to DE19792915034 priority patent/DE2915034A1/en
Publication of FR2423035A1 publication Critical patent/FR2423035A1/en
Application granted granted Critical
Publication of FR2423035B1 publication Critical patent/FR2423035B1/fr
Granted 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
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The effluent is pretreated, pref. continuously to ppte. radioactive cpds. and form a stable suspension of these cpds. 1 pt. wt. of the suspension is mixed with 0.6-2 pts. wt. cement, and 0.5-5 wt% w.r.t. the wt. of cement, of asbestos fibres, possibly adding water to ensure the setting of the cement. The suspension contains 15-75% dry matter, plus a suspension agent, and is cast into a container after mixing with the cement and asbestos. The pref. suspension contains 40-400 g/l of pptes. plus 0.2-6 g/l sodium silicate as the suspension agent, and at least part of the asbestos, it is then evaporated at 70-130 degrees C, to obtain 30-75% dry matter before adding the remainder of the asbestos and the cement. The mixt. may also contain 5-30% bitumen w.r.t. the wt. of cement. A reliable process which reduces the vol. of concrete obtd. and the concrete has high strength.
FR7810963A 1978-04-13 1978-04-13 Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete Granted FR2423035A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7810963A FR2423035A1 (en) 1978-04-13 1978-04-13 Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete
SE7902685A SE7902685L (en) 1978-04-13 1979-03-26 PROCEDURE FOR PREFERRED CONTINUOUS TREATMENT OF RADIOACTIVE FLUID OF LAGACTIVE OR MEDIUM-ACTIVE TYPE
US06/028,453 US4293437A (en) 1978-04-13 1979-04-09 Process for the treatment and packaging of low or average activity radio-active waste
GB7912560A GB2022312B (en) 1978-04-13 1979-04-10 Disposal of radioactive waste
ES479571A ES479571A1 (en) 1978-04-13 1979-04-11 Process for the treatment and packaging of low or average activity radio-active waste
BE0/194569A BE875535A (en) 1978-04-13 1979-04-12 PROCESS FOR THE TREATMENT AND CONDITIONING OF RADIO-ACTIVE EFFLUENTS OF LOW OR MEDIUM ACTIVITY
IT67777/79A IT1118452B (en) 1978-04-13 1979-04-12 PROCESSING AND CONDITIONING PROCEDURE OF ACTIVE RADIO EFFLUENTS
DE19792915034 DE2915034A1 (en) 1978-04-13 1979-04-12 METHOD FOR TREATMENT OF RADIOACTIVE FLOW MEDIA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810963A FR2423035A1 (en) 1978-04-13 1978-04-13 Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete

Publications (2)

Publication Number Publication Date
FR2423035A1 true FR2423035A1 (en) 1979-11-09
FR2423035B1 FR2423035B1 (en) 1980-10-31

Family

ID=9207096

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810963A Granted FR2423035A1 (en) 1978-04-13 1978-04-13 Continuous treatment of radioactive effluents - where stable suspension of radioactive pptes. is mixed with cement and asbestos to make cast concrete

Country Status (2)

Country Link
BE (1) BE875535A (en)
FR (1) FR2423035A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644555A1 (en) * 1993-09-16 1995-03-22 Institute Of Nuclear Energy Research, Taiwan, R.O.C. Preparation of inorganic hardenable slurry and method for solidifying wastes with the same
EP0929079A1 (en) * 1997-08-26 1999-07-14 Institute Of Nuclear Energy Research, Taiwan, R.O.C. Method for solidification of boric acid and/or borates solutions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1246848A (en) * 1959-10-13 1960-11-25 Commissariat Energie Atomique Process for the disposal of radioactive waste and products obtained by this process
FR2349194A1 (en) * 1975-01-17 1977-11-18 United Nuclear Ind Inc RADIOACTIVE RESIDUE TREATMENT PROCESS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1246848A (en) * 1959-10-13 1960-11-25 Commissariat Energie Atomique Process for the disposal of radioactive waste and products obtained by this process
FR2349194A1 (en) * 1975-01-17 1977-11-18 United Nuclear Ind Inc RADIOACTIVE RESIDUE TREATMENT PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644555A1 (en) * 1993-09-16 1995-03-22 Institute Of Nuclear Energy Research, Taiwan, R.O.C. Preparation of inorganic hardenable slurry and method for solidifying wastes with the same
EP0929079A1 (en) * 1997-08-26 1999-07-14 Institute Of Nuclear Energy Research, Taiwan, R.O.C. Method for solidification of boric acid and/or borates solutions

Also Published As

Publication number Publication date
FR2423035B1 (en) 1980-10-31
BE875535A (en) 1979-10-12

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Legal Events

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