US20050131265A1 - Treatment of waste products - Google Patents
Treatment of waste products Download PDFInfo
- Publication number
- US20050131265A1 US20050131265A1 US10/499,283 US49928305A US2005131265A1 US 20050131265 A1 US20050131265 A1 US 20050131265A1 US 49928305 A US49928305 A US 49928305A US 2005131265 A1 US2005131265 A1 US 2005131265A1
- Authority
- US
- United States
- Prior art keywords
- materials
- waste
- inorganic filler
- fine particulate
- microfine
- 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.)
- Abandoned
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 13
- 238000005538 encapsulation Methods 0.000 claims abstract description 12
- 239000011256 inorganic filler Substances 0.000 claims abstract description 11
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 11
- 239000011236 particulate material Substances 0.000 claims abstract description 10
- 239000011440 grout Substances 0.000 claims abstract description 7
- 239000011398 Portland cement Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003456 ion exchange resin Substances 0.000 claims description 4
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 2
- 229910052792 caesium Inorganic materials 0.000 claims description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000006028 limestone Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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
- G21F9/30—Processing
- G21F9/301—Processing by fixation in stable solid media
- G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
- G21F9/304—Cement or cement-like matrix
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- This invention relates to a method for the treatment of waste by encapsulation. More specifically, it is concerned with the encapsulation of waste products produced in the nuclear industry by treatment of the wastes with microfine inorganic filler materials.
- Encapsulation has proved to be an especially favoured method for the disposal of certain waste materials; specifically it provides a suitable means for the conversion of these materials into a stable and safe form, which allows for long-term storage and/or ultimate disposal.
- the technique can find particular application in the nuclear industry, where the highly toxic nature of the materials involved, and the extended timescales over which the toxicity is maintained, are the principal considerations when devising safe disposal methods.
- EP-A-412913 teaches the use of a Portland Cement based grout in the consolidation of concrete structures affected by fine cracks, providing a cost-effective means of infilling both superficial and deeper fissures and cavities in such structures, including such as buildings, bridges and dams.
- ZA-A-9209810 is concerned with a pumpable, spreadable grouting composition incorporating a cementitious and/or pozzolanic or equivalent material, and its application in sealing fissures and cracks, back-filling, providing mass fills in civil and mining works, or lining tunnels.
- hydraulic setting compositions comprising particles of Portland Cement together with fine particles of silica fume containing amorphous silica, which are the subject of EP-A-534385 and are used in the production of concrete, mortar or grout having improved fluidity
- GB-A-2187727 describes a rapid gelling, hydraulic cement composition which comprises an acrylic gelling agent, a fine filler and Portland Cement, this composition being thixotropic and finding particular application in the formation of bulk infills for underground mining, and in the filling of voids and cavities in construction or civil engineering.
- a composition which also is useful in general building and construction work, and as an insulating material comprises a particulate filler, cellulose fibres and a cementitious binder, and is disclosed in GB-A-2117753.
- EP-A-801124 Whilst the majority of these compositions of the prior art have a requirement for the addition of water, EP-A-801124 is concerned with a dry mixture, used for fine soil injection grout preparation, the mixture comprising fillers which do not react with water, cement and deflocculant; on addition of water, an agglomerate-free fine grout is formed, and this is easily injected into fine soil.
- a method for the encapsulation of fine particulate materials which comprises treating said materials with at least one microfine hydraulic inorganic filler.
- the microfine hydraulic inorganic filler comprises a cementitious material, preferably Portland Cement.
- One or more additional inorganic fillers may optionally be added to the cementitious material; suitable fillers include blast furnace slag, pulverised fuel ash, hydrated lime, finely divided silica, limestone flour and organic and inorganic fluidising agents.
- the filler is ground to a much smaller particle size than is normally used in the production of a grout.
- the filler has a maximum particle size of less than 10 ⁇ m.
- the microfine hydraulic inorganic filler is provided in the form of an aqueous composition for the treatment of the fine particulate materials; the water content of the composition is preferably in the region of 40-50% (w/w).
- the filler may be pumped under pressure through the materials in order to ensure that they become intimately encapsulated. In this way, the filler is able to fill the very small interstitial cavities in the waste, thereby achieving intimate encapsulation without the need to remove the materials from their container, with all the attendant disadvantages that would be associated with such a procedure.
- the method of the present invention may be distinguished over the prior art, since all the known methods involve the mixing of materials and filler in a container, whereas mixing of the filler into an aqueous composition occurs prior to treatment of the materials in the container in the present case.
- the intimate encapsulation which is a feature of the present method would not be achievable by using the methods of the prior art.
- a further advantage of the present method is that the container in which the fine particulate materials are held may be used as part of the waste packaging.
- the method of the present invention may be applied to the treatment of a wide range of fine particulate materials.
- the application of the method to the treatment of waste materials in general and, most particularly, waste materials which are encountered in the nuclear industry which, as previously discussed, provide particular areas of concern in their disposal.
- Such materials may be treated by this method in order to eliminate many of the practical handling difficulties, and potential contamination hazards, which would be associated with the need to remove the materials from their containers prior to treatment.
- a particular example of the application of the method in the field of nuclear technology involves the treatment of filters containing ion exchange resins.
- Said filters may typically be used for both liquids and gases and a particular application is in the removal of caesium from waste ponds.
- the used filters comprise cartridges of spent ion exchange resin and these may be successfully encapsulated using the technique according to the present invention.
Abstract
A method for the encapsulation of fine particulate materials includes treating these materials with a microfine hydraulic inorganic filler which, typically, includes a cementitious material, such as Portland Cement. The filler is ground to a much smaller particle size than is normally used in the production of a grout and is provided in the form of an aqueous composition for the treatment of the fine particulate materials by pumping under pressure through these materials such that they become intimately encapsulated. The method is particularly applicable to the treatment of waste materials and, most particularly, waste materials, which are encountered in the nuclear industry.
Description
- This invention relates to a method for the treatment of waste by encapsulation. More specifically, it is concerned with the encapsulation of waste products produced in the nuclear industry by treatment of the wastes with microfine inorganic filler materials.
- Encapsulation has proved to be an especially favoured method for the disposal of certain waste materials; specifically it provides a suitable means for the conversion of these materials into a stable and safe form, which allows for long-term storage and/or ultimate disposal. The technique can find particular application in the nuclear industry, where the highly toxic nature of the materials involved, and the extended timescales over which the toxicity is maintained, are the principal considerations when devising safe disposal methods.
- Whilst the technique of encapsulation can be of great value in such circumstances, however, it is known from the prior art that many fine particulate sized waste materials, as well as certain filters which contain ion exchange resins, are particularly problematic to encapsulate. This is a problem which becomes especially important in the nuclear industry where, in view of the nature of the waste products, it is vital to ensure that procedures are completed efficiently and successfully before disposal of the waste products.
- Previously, it has been found necessary to treat these problematic materials by removing them from the containers in which they are stored and mixing them in drums with the encapsulation material, or subjecting them to vibro-grouting techniques. Such procedures, involving removal from containers, are invariably difficult, messy and expensive to carry out, and generally give rise to copious amounts of additional waste. Furthermore, there are obvious implications in terms of extra containment requirements and additional plant capacity.
- In general, therefore, the situation is unsatisfactory. Indeed, no commercially acceptable means of dealing with such waste materials is yet available which does not rely on the technique of in-drum mixing which, as previously discussed, has several serious practical drawbacks.
- The use of cement based injection grouting in the construction industry is well known from the prior art. Thus, EP-A-412913 teaches the use of a Portland Cement based grout in the consolidation of concrete structures affected by fine cracks, providing a cost-effective means of infilling both superficial and deeper fissures and cavities in such structures, including such as buildings, bridges and dams. Similarly, ZA-A-9209810 is concerned with a pumpable, spreadable grouting composition incorporating a cementitious and/or pozzolanic or equivalent material, and its application in sealing fissures and cracks, back-filling, providing mass fills in civil and mining works, or lining tunnels.
- Also disclosed in the prior art are hydraulic setting compositions comprising particles of Portland Cement together with fine particles of silica fume containing amorphous silica, which are the subject of EP-A-534385 and are used in the production of concrete, mortar or grout having improved fluidity, whilst GB-A-2187727 describes a rapid gelling, hydraulic cement composition which comprises an acrylic gelling agent, a fine filler and Portland Cement, this composition being thixotropic and finding particular application in the formation of bulk infills for underground mining, and in the filling of voids and cavities in construction or civil engineering. A composition which also is useful in general building and construction work, and as an insulating material comprises a particulate filler, cellulose fibres and a cementitious binder, and is disclosed in GB-A-2117753.
- Whilst the majority of these compositions of the prior art have a requirement for the addition of water, EP-A-801124 is concerned with a dry mixture, used for fine soil injection grout preparation, the mixture comprising fillers which do not react with water, cement and deflocculant; on addition of water, an agglomerate-free fine grout is formed, and this is easily injected into fine soil.
- Thus, the use of such grouting materials in—primarily—civil engineering is well known. Surprisingly, the present inventors have now found that it is possible to make use of these materials in order to overcome many of the problems associated with encapsulation of fine particulate sized wastes which have previously been detailed. Thus, it is now possible to provide a treatment method for wastes of this type which affords much greater efficiency, convenience and safety in handling, and has a consequent beneficial effect both in terms of environmental considerations and cost.
- Thus, according to the present invention there is provided a method for the encapsulation of fine particulate materials which comprises treating said materials with at least one microfine hydraulic inorganic filler.
- Typically, the microfine hydraulic inorganic filler comprises a cementitious material, preferably Portland Cement.
- One or more additional inorganic fillers may optionally be added to the cementitious material; suitable fillers include blast furnace slag, pulverised fuel ash, hydrated lime, finely divided silica, limestone flour and organic and inorganic fluidising agents.
- In each case, the filler is ground to a much smaller particle size than is normally used in the production of a grout. Typically, the filler has a maximum particle size of less than 10 μm.
- The microfine hydraulic inorganic filler is provided in the form of an aqueous composition for the treatment of the fine particulate materials; the water content of the composition is preferably in the region of 40-50% (w/w). Thus, the filler may be pumped under pressure through the materials in order to ensure that they become intimately encapsulated. In this way, the filler is able to fill the very small interstitial cavities in the waste, thereby achieving intimate encapsulation without the need to remove the materials from their container, with all the attendant disadvantages that would be associated with such a procedure. Hence, the method of the present invention may be distinguished over the prior art, since all the known methods involve the mixing of materials and filler in a container, whereas mixing of the filler into an aqueous composition occurs prior to treatment of the materials in the container in the present case. The intimate encapsulation which is a feature of the present method would not be achievable by using the methods of the prior art.
- A further advantage of the present method is that the container in which the fine particulate materials are held may be used as part of the waste packaging.
- The method of the present invention may be applied to the treatment of a wide range of fine particulate materials. Of particular value, however, is the application of the method to the treatment of waste materials in general and, most particularly, waste materials which are encountered in the nuclear industry which, as previously discussed, provide particular areas of concern in their disposal. Such materials may be treated by this method in order to eliminate many of the practical handling difficulties, and potential contamination hazards, which would be associated with the need to remove the materials from their containers prior to treatment.
- A particular example of the application of the method in the field of nuclear technology involves the treatment of filters containing ion exchange resins. Said filters may typically be used for both liquids and gases and a particular application is in the removal of caesium from waste ponds. The used filters comprise cartridges of spent ion exchange resin and these may be successfully encapsulated using the technique according to the present invention.
Claims (15)
1. A method for the encapsulation of fine particulate materials comprising:
treating said materials with a microfine hydraulic inorganic filler.
2. A method as claimed in claim 1 wherein the microfine hydraulic inorganic filler comprises a cementitious material.
3. A method as claimed in claim 2 wherein the cementitious material comprises Portland Cement.
4. A method as claimed in claim 2 wherein the microfine hydraulic inorganic filler further comprises at least one inorganic filler selected from the group consisting of blast furnace slag, pulverised fuel ash, hydrated lime, finely divided silica, limestone flour and organic and inorganic fluidising agents.
5. A method as claimed in claim 1 wherein the filler is ground to a much smaller particle size than is normally used in the production of a grout.
6. A method as claimed in claim 4 wherein the filler has a maximum particle size of less than about 10 μm.
7. A method as claimed in claim 1 wherein the microfine hydraulic inorganic filler is provided in the form of an aqueous composition.
8. A method as claimed in claim 7 wherein the water content of the composition is approximately 40-50% (w/w).
9. A method as claimed in claim 7 wherein said aqueous composition is pumped under pressure through the fine particulate materials in order to achieve intimate encapsulation.
10. A method as claimed in claim 1 wherein the fine particulate materials comprise waste materials.
11. A method as claimed in claim 10 wherein said waste materials comprise waste materials generated in the nuclear industry.
12. A method as claimed in claim 10 wherein said waste materials comprise filters containing ion exchange resins.
13. A method as claimed in claim 12 wherein said filters are utilised in the removal of caesium from waste ponds.
14. A method as claimed in claim 1 wherein said fine particulate materials are treated in containers, without the requirement for removal from said containers prior to treatment.
15. A method as claimed in claim 14 wherein the container is used as part of the waste packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/538,969 US7445591B2 (en) | 2001-12-21 | 2006-10-05 | Treatment of waste products |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0130593.7A GB0130593D0 (en) | 2001-12-21 | 2001-12-21 | Treatment of waste products |
| GB0130593.7 | 2001-12-21 | ||
| PCT/GB2002/005861 WO2003056571A2 (en) | 2001-12-21 | 2002-12-20 | Treatment of waste products |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/538,969 Continuation US7445591B2 (en) | 2001-12-21 | 2006-10-05 | Treatment of waste products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20050131265A1 true US20050131265A1 (en) | 2005-06-16 |
Family
ID=9928119
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/499,283 Abandoned US20050131265A1 (en) | 2001-12-21 | 2002-12-20 | Treatment of waste products |
| US11/538,969 Expired - Fee Related US7445591B2 (en) | 2001-12-21 | 2006-10-05 | Treatment of waste products |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/538,969 Expired - Fee Related US7445591B2 (en) | 2001-12-21 | 2006-10-05 | Treatment of waste products |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20050131265A1 (en) |
| EP (1) | EP1459326B1 (en) |
| AT (1) | ATE458253T1 (en) |
| AU (1) | AU2002367212A1 (en) |
| DE (1) | DE60235405D1 (en) |
| GB (1) | GB0130593D0 (en) |
| WO (1) | WO2003056571A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015503094A (en) * | 2011-11-25 | 2015-01-29 | 中国広核集団有限公司 | Cement solidification formulation and solidification method used for high-concentration boron-containing radioactive waste resin in nuclear power plants |
| JP2015094608A (en) * | 2013-11-09 | 2015-05-18 | 恵和興業株式会社 | Method of manufacturing granulation/regeneration crushed stone by reducing radioactivity from radioactive waste |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0419682D0 (en) * | 2004-09-04 | 2004-10-06 | British Nuclear Fuels Plc | Novel encapsulation medium |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988258A (en) * | 1975-01-17 | 1976-10-26 | United Nuclear Industries, Inc. | Radwaste disposal by incorporation in matrix |
| US4116705A (en) * | 1973-06-01 | 1978-09-26 | Stablex Ag | Detoxification |
| US4249949A (en) * | 1978-05-18 | 1981-02-10 | Imperial Chemical Industries Limited | Methods for consolidating radioactive waste material using self-setting or water-settable compositions containing an organic polyisocyanate, a non-ionic surface active agent devoid of isocyanate-reactive groups and alkaline filler |
| US4379081A (en) * | 1981-03-12 | 1983-04-05 | Westinghouse Electric Corp. | Method of encapsulating waste radioactive material |
| US4409137A (en) * | 1980-04-09 | 1983-10-11 | Belgonucleaire | Solidification of radioactive waste effluents |
| US4432666A (en) * | 1979-12-14 | 1984-02-21 | Vfi, Verwertungsgesellschaft Fur Industrieruckstande Mbh | Process for the storage and dumping of waste materials |
| US4518508A (en) * | 1983-06-30 | 1985-05-21 | Solidtek Systems, Inc. | Method for treating wastes by solidification |
| US4530723A (en) * | 1983-03-07 | 1985-07-23 | Westinghouse Electric Corp. | Encapsulation of ion exchange resins |
| US4600514A (en) * | 1983-09-15 | 1986-07-15 | Chem-Technics, Inc. | Controlled gel time for solidification of multi-phased wastes |
| US4741776A (en) * | 1980-09-19 | 1988-05-03 | Blue Circle Industries Limited | Method of processing waste materials |
| US4853208A (en) * | 1988-03-21 | 1989-08-01 | Chemfix Technologies, Icc. | Method of binding wastes in alkaline silicate matrix |
| US4904416A (en) * | 1987-05-21 | 1990-02-27 | Kyushu Electric Power Co., Ltd. | Cement solidification treatment of spent ion exchange resins |
| US5026215A (en) * | 1988-12-02 | 1991-06-25 | Geochemical Corporation | Method of grouting formations and composition useful therefor |
| US5143653A (en) * | 1987-05-15 | 1992-09-01 | Societe Anonyme: Societe Generale Pour Les Techniques Nouvelles-Sgn | Process for immobilizing radioactive ion exchange resins by a hydraulic binder |
| US5143654A (en) * | 1989-09-20 | 1992-09-01 | Hitachi, Ltd. | Method and apparatus for solidifying radioactive waste |
| US5242603A (en) * | 1988-04-05 | 1993-09-07 | Solidiwaste Technology, L.P. | Process for the disposal of waste |
| US5256338A (en) * | 1990-11-28 | 1993-10-26 | Hitachi, Ltd. | Solidifying materials for radioactive waste disposal, structures made of said materials for radioactive waste disposal and process for solidifying of radioactive wastes |
| US5640704A (en) * | 1995-07-24 | 1997-06-17 | Snyder; Thomas S. | Process for solidification and immobilization of harmful waste species |
| US5968257A (en) * | 1994-08-29 | 1999-10-19 | Sandia Corporation | Ultrafine cementitious grout |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0006329A1 (en) | 1978-06-08 | 1980-01-09 | BP Chemicals Limited | Encapsulating wastes |
| GB2117753A (en) | 1982-04-06 | 1983-10-19 | Printsulate Limited | Compositions |
| JPS60122398A (en) | 1983-12-07 | 1985-06-29 | 株式会社日立製作所 | Method of solidifying radioactive waste |
| JPS61239197A (en) | 1985-04-17 | 1986-10-24 | ウエスチングハウス エレクトリック コ−ポレ−ション | Radioacitve waste containing fixed cesium and fixing method thereof |
| JPS6296899A (en) * | 1985-10-24 | 1987-05-06 | 三菱重工業株式会社 | Method of solidifying radioactive waste |
| GB2187727A (en) | 1986-03-14 | 1987-09-16 | Coal Ind | Rapid gelling compositions |
| JPH0727075B2 (en) | 1986-05-16 | 1995-03-29 | 株式会社東芝 | Method for solidifying radioactive waste |
| JPS62277600A (en) | 1986-05-26 | 1987-12-02 | 株式会社東芝 | Method of silidifying radioactive waste |
| JPH0832575B2 (en) * | 1987-07-22 | 1996-03-29 | 住友大阪セメント株式会社 | Portland cement with controlled particle size |
| FR2650837B1 (en) | 1989-08-11 | 1994-08-05 | Lafarge Nouveaux Materiaux | GROUND INJECTION OF FINE CRACKS |
| JPH04317444A (en) | 1991-02-21 | 1992-11-09 | Nippon Steel Chem Co Ltd | Superfine granulated slag power, its production and mortar composition |
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| JP3125404B2 (en) | 1992-01-29 | 2001-01-15 | 三菱マテリアル株式会社 | Grout wood |
| JPH06300893A (en) | 1993-04-14 | 1994-10-28 | Toshiba Corp | Solidifying material for radioactive waste |
| TW321774B (en) | 1994-10-27 | 1997-12-01 | Jgc Corp | |
| FR2747393B1 (en) | 1996-04-11 | 2004-09-17 | Cie Du Sol | GROUT FOR INJECTION IN FINE SOILS AND COMPOSITIONS FOR THE PRODUCTION OF THIS GROUT |
| FR2763584B1 (en) | 1997-05-20 | 1999-07-09 | Electricite De France | CONTAINMENT CONCRETE |
-
2001
- 2001-12-21 GB GBGB0130593.7A patent/GB0130593D0/en not_active Ceased
-
2002
- 2002-12-20 AU AU2002367212A patent/AU2002367212A1/en not_active Abandoned
- 2002-12-20 AT AT02805831T patent/ATE458253T1/en not_active IP Right Cessation
- 2002-12-20 US US10/499,283 patent/US20050131265A1/en not_active Abandoned
- 2002-12-20 WO PCT/GB2002/005861 patent/WO2003056571A2/en not_active Application Discontinuation
- 2002-12-20 DE DE60235405T patent/DE60235405D1/en not_active Expired - Lifetime
- 2002-12-20 EP EP02805831A patent/EP1459326B1/en not_active Expired - Lifetime
-
2006
- 2006-10-05 US US11/538,969 patent/US7445591B2/en not_active Expired - Fee Related
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015503094A (en) * | 2011-11-25 | 2015-01-29 | 中国広核集団有限公司 | Cement solidification formulation and solidification method used for high-concentration boron-containing radioactive waste resin in nuclear power plants |
| JP2015094608A (en) * | 2013-11-09 | 2015-05-18 | 恵和興業株式会社 | Method of manufacturing granulation/regeneration crushed stone by reducing radioactivity from radioactive waste |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003056571A2 (en) | 2003-07-10 |
| AU2002367212A8 (en) | 2003-07-15 |
| GB0130593D0 (en) | 2002-02-06 |
| US7445591B2 (en) | 2008-11-04 |
| EP1459326A2 (en) | 2004-09-22 |
| AU2002367212A1 (en) | 2003-07-15 |
| ATE458253T1 (en) | 2010-03-15 |
| DE60235405D1 (en) | 2010-04-01 |
| EP1459326B1 (en) | 2010-02-17 |
| US20070224344A1 (en) | 2007-09-27 |
| WO2003056571A3 (en) | 2004-06-17 |
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