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WO1995001641A1 - Nouveaux procedes de traitement et de rejet de dechets et de produits de fission nucleaire - Google Patents

Nouveaux procedes de traitement et de rejet de dechets et de produits de fission nucleaire Download PDF

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Publication number
WO1995001641A1
WO1995001641A1 PCT/IB1994/000188 IB9400188W WO9501641A1 WO 1995001641 A1 WO1995001641 A1 WO 1995001641A1 IB 9400188 W IB9400188 W IB 9400188W WO 9501641 A1 WO9501641 A1 WO 9501641A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste products
products
nuclear fission
waste
disposal
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
Application number
PCT/IB1994/000188
Other languages
English (en)
Inventor
Masaya KÜNO
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1995001641A1 publication Critical patent/WO1995001641A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G21F9/20—Disposal of liquid waste
    • G21F9/26—Disposal of liquid waste by dilution in water, e.g. in ocean, in stream
    • 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

Definitions

  • This invention relates to a method for treating and disposal of nuclear fission waste and products. More particularly, it concerns disposal of nuclear fission waste and products using red mud and the like.
  • Nuclear fission products present obvious hazards. Desirably, such products should be dispersed into the sea at a depth of at least about 1,000 m, particularly to avoid gamma rays. Nuclear fission products are transformed or changed to other products expelling alpha, beta, gamma radiation for many years.
  • Nuclear fission products are treated with acid, i.e., HN0 3 and the like to recover Pu, i.e., plutoniu and the like.
  • Red mud is obtained as a waste product by treating bauxite with NaOH solution to extract aluminum oxide. The aluminum oxide is then subjected to electrolysis to produce aluminum. The resultant red mud is sufficiently porous to adsorb fission waste. It is of ideal composition to adjust pH of the mixture.
  • An object of the present invention is to provide a method of treatment for disposal of nuclear fission waste and products using red mud and the like which is the industrial waste from the aluminum and steel industries and the like.
  • Figs. 1 and 2 represent schematic flow charts illustrating the present invention. Description of the Preferred Embodiments.
  • the present invention provides a new system for the disposal of fission and fusion products and waste using heavier, porous industrial waste such as red mud, slag and the like, the density of which is over 1.0, composed of other impurities and appropriate additive.
  • Red mud typically, composed of Si0 2 -18.6%, Al 2 0 3 -19.9%, Fe 2 0 3 -36.2%, Na 2 0-9.8% and water of crystallization is good adsorbent for radioactive cations such as zeolites, etc. in the waste water.
  • Radioactive cations are dissolved in water containing nitrate ions which are chemically reactive with alkaline compounds such as red mud and the like, which is also active physically due to the porous structure.
  • Red mud can also be used in dry form. Dried red mud can also absorb radioactive water to form water of crystallization, which reduces radioactive fallout.
  • box 1 depicts nuclear fission waste
  • box 2 is a red mud supply
  • box 3 are tanks for pH arrangement and so forth
  • box 4 is ship and 5 is long pipe
  • box 6 is a treating center.
  • box 1 depicts nuclear fission waste
  • box 2 is red mud
  • box 3 are tanks for pH arrangement and so forth
  • box 4 is a long pipe
  • box 6 is a treating center.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Sustainable Development (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Procédé de rejet de produits constitués par des déchets de fission nucléaire comprenant le mélange desdits produits avec des déchets industriels poreux permettant de les absorber et/ou d'effectuer une réaction chimique et possédant une densité supérieure à 1,0. On immerge ensuite le mélange obtenu dans une masse d'eau.
PCT/IB1994/000188 1993-07-01 1994-07-01 Nouveaux procedes de traitement et de rejet de dechets et de produits de fission nucleaire Ceased WO1995001641A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5/213304 1993-07-01
JP21330493A JPH0720286A (ja) 1993-07-01 1993-07-01 新しい核廃棄物の処理方法

Publications (1)

Publication Number Publication Date
WO1995001641A1 true WO1995001641A1 (fr) 1995-01-12

Family

ID=16636917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1994/000188 Ceased WO1995001641A1 (fr) 1993-07-01 1994-07-01 Nouveaux procedes de traitement et de rejet de dechets et de produits de fission nucleaire

Country Status (2)

Country Link
JP (1) JPH0720286A (fr)
WO (1) WO1995001641A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6589182B2 (ja) * 2017-10-31 2019-10-16 タストン・エアポート株式会社 廃棄物処理方法
JP2021081298A (ja) * 2019-11-19 2021-05-27 田中　伸一 汚染水貯蔵方法及び汚染水貯蔵システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132633A (en) * 1979-03-30 1980-10-15 Agency Of Ind Science & Technol Adsorbent for arsenic
FR2515149A1 (fr) * 1981-10-22 1983-04-29 Wintershall Ag Procede de stockage definitif de dechets susceptibles d'etre pompes
JPS6214984A (ja) * 1985-07-15 1987-01-23 Mitsui Toatsu Chem Inc リンの吸着除去方法
WO1993015831A1 (fr) * 1992-02-05 1993-08-19 Cinis Ltd. Agent de sorption servant a immobiliser des substances toxiques et contaminantes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132633A (en) * 1979-03-30 1980-10-15 Agency Of Ind Science & Technol Adsorbent for arsenic
FR2515149A1 (fr) * 1981-10-22 1983-04-29 Wintershall Ag Procede de stockage definitif de dechets susceptibles d'etre pompes
JPS6214984A (ja) * 1985-07-15 1987-01-23 Mitsui Toatsu Chem Inc リンの吸着除去方法
WO1993015831A1 (fr) * 1992-02-05 1993-08-19 Cinis Ltd. Agent de sorption servant a immobiliser des substances toxiques et contaminantes

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8709, Derwent World Patents Index; Class D15, AN 87-060510 *
PATENT ABSTRACTS OF JAPAN vol. 005, no. 004 (C - 038) 13 January 1981 (1981-01-13) *
PATENT ABSTRACTS OF JAPAN vol. 011, no. 192 (C - 429) 19 June 1987 (1987-06-19) *

Also Published As

Publication number Publication date
JPH0720286A (ja) 1995-01-24

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