WO1995001641A1 - Method for disposal of nuclear fission waste products - Google Patents
Method for disposal of nuclear fission waste products Download PDFInfo
- 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
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
A method for the disposal of nuclear fission waste products which comprises admixing such products with porous, industrial waste which is able to absorb them and/or react with them chemically and has a density of over 1.0, followed by sinking the resultant mixture in a body of water.
Description
METHOD FOR DISPOSAL OF NUCLEAR FISSION WASTE PRODUCTS
Background of the Invention
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.
However, there exists a possibility of their waves overlapping during accumulation and storage, which will exert huge power, because λE = constant (if C is constant, it is rewritten as he) . Each wave has its own λnEn, however, if the waves are the same, these waves are of probable accumulation such λ(E + E + ... + E) = nλE, which is the principle behind the power of the laser melting method. Therefore, the best way to dispose of these fission products is to sink them with industrial waste, e.g., red mud and the like, chemically reacted and/or physically absorbed on such waste, the density of which is over 1.0.
Channeling the waste with a long pipe and carefully dropping it onto the sea bottom, i.e., deeper than 1,000 m is the optimum approach.
Nuclear fission products are treated with acid, i.e., HN03 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.
Aluminum production requires power and disposal of red mud. Nuclear power companies produce power, requiring disposal of fission waste. Therefore, a combined system based on the above has much merit.
Summary of the Invention.
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.
Brief Description of the Drawing.
Figs. 1 and 2 represent schematic flow charts illustrating the present invention.
Description of the Preferred Embodiments.
More specifically, 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 Si02-18.6%, Al203-19.9%, Fe203-36.2%, Na20-9.8% 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.
The above combination, i.e., fission products and waste and red mud and the like is ideal to make new compounds via chemical reaction and physical absorption. New compounds in slurry form in a lot of water are sent to appropriate tanks to adjust pH, etc. , before carefully being dropped into the sea bottom from ships or pumping stations through long pipes, over 1,000 m length.
In Fig. 1, 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.
In Fig. 2, 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, and box 6 is a treating center.
Claims
1. A method for the disposal of nuclear fission waste products which comprises admixing such products with porous, industrial waste which is able to absorb them and/or react with them chemically and has a density of over 1.0, followed by sinking the resultant mixture in a body of water.
2. The method according to claim 1 wherein said nuclear fission waste products are dissolved in water containing nitrate ions to form a solution which is then chemically reacted with or physically absorbed on said waste products.
3. The method according to claim 2 wherein said waste product is red mud which is composed of Si02 - 18.6% by weight, A1203 - 19.9% by weight, Fe203 - 36.2% by weight, Na20 - 9.8% by weight, and water of crystallization.
4. An integrated process for the disposal of nuclear fission waste products from a nuclear power plant which comprises admixing said waste products with porous industrial waste having a specific gravity of 1.0 or greater to form a mixture having said fission waste products chemically reacted with and physically absorbed on said industrial waste products and then sinking the resultant mixture in a body of water and in proximity to said power plant, a plant for electrolytic production of aluminum from bauxite, said plant for production of aluminum consuming power from said nuclear power plant and said plant for production of aluminum producing red mud for the treatment of nuclear fission waste products from said nuclear power plant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5/213304 | 1993-07-01 | ||
| JP21330493A JPH0720286A (en) | 1993-07-01 | 1993-07-01 | New treatment of nuclear waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995001641A1 true WO1995001641A1 (en) | 1995-01-12 |
Family
ID=16636917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB1994/000188 Ceased WO1995001641A1 (en) | 1993-07-01 | 1994-07-01 | Method for disposal of nuclear fission waste products |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0720286A (en) |
| WO (1) | WO1995001641A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6589182B2 (en) * | 2017-10-31 | 2019-10-16 | タストン・エアポート株式会社 | Waste disposal method |
| JP2021081298A (en) * | 2019-11-19 | 2021-05-27 | 田中 伸一 | Method and system for storing polluted water |
Citations (4)
| 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 (en) * | 1981-10-22 | 1983-04-29 | Wintershall Ag | METHOD FOR DEFINITIVE STORAGE OF PUMPS LIKELY TO BE PUMPS |
| JPS6214984A (en) * | 1985-07-15 | 1987-01-23 | Mitsui Toatsu Chem Inc | Phosphorus adsorption removal method |
| WO1993015831A1 (en) * | 1992-02-05 | 1993-08-19 | Cinis Ltd. | Sorbent for immobilization of toxic and contaminating substances |
-
1993
- 1993-07-01 JP JP21330493A patent/JPH0720286A/en active Pending
-
1994
- 1994-07-01 WO PCT/IB1994/000188 patent/WO1995001641A1/en not_active Ceased
Patent Citations (4)
| 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 (en) * | 1981-10-22 | 1983-04-29 | Wintershall Ag | METHOD FOR DEFINITIVE STORAGE OF PUMPS LIKELY TO BE PUMPS |
| JPS6214984A (en) * | 1985-07-15 | 1987-01-23 | Mitsui Toatsu Chem Inc | Phosphorus adsorption removal method |
| WO1993015831A1 (en) * | 1992-02-05 | 1993-08-19 | Cinis Ltd. | Sorbent for immobilization of toxic and contaminating substances |
Non-Patent Citations (3)
| 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 (en) | 1995-01-24 |
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