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1. 发明专利

JP2003146727A LIGHT WEIGHT MORTAL AND SOLIDIFYING METHOD FOR RADIOACTIVE WASTE USING THE SAME 审中-公开
公开(公告)号：JP2003146727A
公开(公告)日：2003-05-21
申请号：JP2001354071
申请日：2001-11-20
申请人： TOSHIBA CERAMICS CO , TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： MATSUO KAZUAKI , UMEMURA HISANORI , SATO TATSUAKI , TOYOHARA NAOMI , KANEKO MASAAKI , NATSUI KAZUJI , NIIHORI KUNIAKI
IPC分类号： G21F9/30 , C04B14/14 , C04B14/18 , C04B22/06 , C04B24/16 , C04B24/22 , C04B28/02 , C04B103/40 , C04B103/44
摘要： PROBLEM TO BE SOLVED: To provide light weight mortal wherein satisfactory fluidity can be maintained for a long time and which is excellent in packing properties, low in specific gravity and excellent in strength and the like of the solidified material thereby and to provide a solidifying method for a radioactive waste by which a waste body can be made light in weight. SOLUTION: The light weight mortal is used, consisting of water-hardenable cement, light weight aggregate, a dispersing agent, a separation suppressing agent, a weight lightening promoter and water and characterized in that the light weight aggregate is formed by mixing an igneous rock calcined material and an obsidian calcined material.

2. 发明专利

JP2000284092A METHOD AND DEVICE FOR TREATING WASTE CONTAINING BORON 失效
公开(公告)号：JP2000284092A
公开(公告)日：2000-10-13
申请号：JP2000016776
申请日：2000-01-26
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： TOYOHARA NAOMI , SATO TATSUAKI , NODA TETSUYA , SUZUKI NORIKO , TAKAMATSU YOSHINARI
IPC分类号： G21F9/16 , G21F9/08
摘要： PROBLEM TO BE SOLVED: To make it possible to prevent a liquid waste line from clogging by keeping the temperature to the point of adding a compound of alkali metal elements and that of an alkaline earth metal element to a liquid waste containing boron, and drying and powdering a mixture of them at the deposition temperatures of boron and both compounds or higher. SOLUTION: After a radioactive liquid waste 1 containing boric acid as a main constituent that is generated in a nuclear power plant is heated 2 at the temperature of 80 deg.C or higher, the liquid waste 1 is neutralized by adding a compound 3 of alkali metal elements such as Na and K to the liquid waste. Moreover, the boric acid as the main constituent is insolubilized by adding a compound 4 of alkaline earth metal elements such as Ca and Mg to the liquid waste 1. Then, a liquid waste containing an insoluble compound of a boric acid (a liquid waste containing an insoluble boric acid) obtained in the previous process is supplied to a dryer while keeping the temperature of the liquid waste at 80 deg. C or higher, a drying treatment 5 is carried out for the liquid waste to convert it to dried powder 6 and the volume of it is reduced. In this process, the sedimentation velocity of insoluble borate in the liquid waste can be reduced by keeping the temperature of the liquid waste at 80 deg.C or higher, which makes it possible to prevent a liquid waste line from clogging. The dried powder 6 is solidified in concurrence with a cementitions material.

3. 发明专利

JPH1172594A SOLIDIFICATION METHOD OF RADIOACTIVE WASTE 失效
公开(公告)号：JPH1172594A
公开(公告)日：1999-03-16
申请号：JP23369297
申请日：1997-08-29
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： TOYOHARA NAOMI , SATO TATSUAKI , SUZUKI NORIKO , NAMIKATA NORIYUKI , ISHII TOMOHARU , TOMITA FUMIO
IPC分类号： G21F9/16 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To inexpensively and stably solidify a radioactive waste without any danger by adding an inorganic expansion agent to a cement-based compression material increased in fluidity, kneading them, regulating amount of water, and solidifying it. SOLUTION: The solidification is performed with a hydraulic additive composed of a hydraulic inorganic solidifying material, sand, water, a fluidizing agent and inorganic expansion material. The hydraulic inorganic solidifying material is composed of a cement making a main component of calcium silicate or calcium aluminate. The inorganic expansion material is composed of bentonite, silica and one kind or two kinds or more of kaolinite, and 0.5-5 wt.% of the inorganic expansion material is compounded for the hydraulic inorganic solidifying material. A water reducing agent composed of a positive ion surface active agent can be used as the fluidizing agent. The compounding ratio of the hydraulic inorganic solidifying material and water, it and sand is 0.38 or larger and 0.4-1.0 respectively, and after the hydraulic inorganic solidifying material, sand and the fluidizing agent are added and kneaded, the inorganic expansion material is added.

4. 发明专利

JP2003262698A DEVICE FOR SOLIDIFYING RADIOACTIVE WASTE 审中-公开
公开(公告)号：JP2003262698A
公开(公告)日：2003-09-19
申请号：JP2002061549
申请日：2002-03-07
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SATO TATSUAKI , TOYOHARA NAOMI , NISHIKUBO MASARU , TAKADA TAKAO , TAJIMA FUMIO
IPC分类号： G21F9/16
摘要： PROBLEM TO BE SOLVED: To reduce costs by stably solidifying radioactive wastes with a cementitious solidifying material and downsizing a fixing device. SOLUTION: The cementitious solidifying material and the radioactive wastes or the cementitious solidifying material, kneading water and the radioactive wastes are stowed in a solidification container 11, where rotating agitating vanes 10 are mounted obliquely on a mixer fixing board 7. The mixer fixing board 7 is mounted on a rod 4. The solidification container 11 is put and fixed on a turntable 12 so that it can rotate freely. In the solidification container 11, the agitating vanes 10 can rotate at a high speed, detention on the lateral face of the bottom part of the solidification container 11 can be prevented and the material and the wastes can be mixed uniformly over the entirely. Moreover, the mixture can be solidified homogeneously and stably, by rotating the solidification container 11 as well, while hoisting and lowering the agitating vanes 10 themselves. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2004012179A PRE-TREATMENT DEVICE FOR WASTE SILVER ADSORBENT AND PRE-TREATMENT METHOD THEREFOR 审中-公开
公开(公告)号：JP2004012179A
公开(公告)日：2004-01-15
申请号：JP2002162836
申请日：2002-06-04
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： KANEKO MASAAKI , SATO TATSUAKI , SATO KOKICHI , KANAZAWA DAISUKE
IPC分类号： G21F9/06
摘要： PROBLEM TO BE SOLVED: To efficiently collect elements of a waste silver adsorbent to an oxidation treatment device in a post-treatment process, to facilitate control, and to simplify devices. SOLUTION: A reduction treatment liquid 16 is housed in a reduction treatment tank 10, and a liquid-permeable inner container 13 stored with the waste silver adsorbent 14 is immersed in the treatment liquid 16. The oxidation treatment device 20 is connected to a lower part of the treatment tank 10 by a connecting tube 18 via an exhaust valve 19. The treatment liquid 16 is controlled to be 40 to 90°C and to have pH of 7 to 11.5. A filter 12 is provided between an under part of the inner container 13 and the treatment tank 10, and impurities in the treatment liquid 16 are removed by the filter 12. The treatment liquid 16 is, for example, a aqueous solution containing 5000 ppm sodium sulfide. By the weight of the treatment liquid 16 itself, the treatment liquid 16 can be transferred through the filter 12 to the treatment device 20. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2003255085A SOLIDIFICATION METHOD FOR RADIOACTIVE WASTE 审中-公开
公开(公告)号：JP2003255085A
公开(公告)日：2003-09-10
申请号：JP2002055206
申请日：2002-03-01
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SATO TATSUAKI , KANEKO MASAAKI , TAKADA TAKAO , TAJIMA FUMIO
IPC分类号： G21F9/16
摘要： PROBLEM TO BE SOLVED: To reduce generation of washing waste liquid of mixing machine generating as secondary waste, when radioactive waste is solidified with cement group solidification materials. SOLUTION: The solidification method for solidifying radioactive waste with cement group solidification materials consists of a mixing and mixture throw-in process (a) for throwing-in a mixture 6, in which the radioactive waste and cement group solidification materials are mixed into a solidification vessel 7, a mixing machine for washing and washing waste liquid throw-in process (b) for washing, by putting washing water in the mixing machine 3 and throwing the washing waste liquid 8 in the mixing machine 3 into the solidification vessel 7, wherein the mixture 6 is contained, and a solidification vessel internal solidification process (c) for absorbing the washing waste liquid in the solidification vessel 7 in the mixture 6, and hardening to be a solid body 9. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002131481A METHOD OF SOLIDIFICATION OF RADIOACTIVE WASTE 失效
公开(公告)号：JP2002131481A
公开(公告)日：2002-05-09
申请号：JP2000326459
申请日：2000-10-26
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SATO TATSUAKI , KANEKO MASAAKI , NATSUI KAZUJI , TOMITA FUMIO
IPC分类号： G21F9/30 , C02F11/00
摘要： PROBLEM TO BE SOLVED: To make it easy to handle concrete cut sludge, operate safely and produce wastes which are excellent in their stability and the performance of volume reduction in the solidification of it. SOLUTION: After a dehydration 2 treatment is given to the slurry 1 of the concrete cut sludge, the dehydrated sludge 3 is mixed 5 with an admixture 4. The mixture is transported to a cement solidifying facility 7 and a cementitious solidifying material 8 is added to the mixture to mix 9 the former with the latter. The mixture obtained in the previous process is poured 10 into a solidifying container to be solidified. The slurry 1 of the concrete cut sludge is made by cutting concrete wastes generated at the decommissioning of nuclear facilities and is the slurry of the cut sludge contained in cooling water when concrete wastes are cut. The admixture 4 is sodium phosphate, calcium carbonate, carboxylic acid, lignin sulfonate and the like. The cementitious solidifying material 8 is the minute ground product of the concrete cut block.

8. 发明专利

JP2001099990A METHOD OF SOLIDIFYING RADIOACTIVE WASTE 失效
公开(公告)号：JP2001099990A
公开(公告)日：2001-04-13
申请号：JP27936099
申请日：1999-09-30
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： HIRUTA KOICHI , SATO TATSUAKI , TOYOHARA NAOMI , KURAMITSU KIMINORI , TAKAMATSU YOSHINARI
IPC分类号： G21F9/16 , G21F9/08
摘要： PROBLEM TO BE SOLVED: To obtain a solidified body which is stable over a long period, and to contribute to load reduction and maintainability improvement of a blender. SOLUTION: A sodium sulfate waste fluid 1 containing sulfate produced from a nuclear power plant or the like is evaporated to be dried 2 by a dehydrator into dry powder 3. Water 5 and a preparation material 4 producing a sulfo calcium aluminate mineral are added to the dry powder 3 and mixed 6. A hydraulic inorganic solidifying material 7 is added to the mixture, mixed 8, and put in 9 a solidification container for obtaining a solidified body 10. By this, radioactive waste fluid with sulfate as a main component can be made into a highly volume reductive and stable cement solidified body.

9. 发明专利

JPH10339795A DEVICE FOR SOLIDIFYING TREATMENT OF RADIOACTIVE WASTE 失效
公开(公告)号：JPH10339795A
公开(公告)日：1998-12-22
申请号：JP15122897
申请日：1997-06-09
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SATO TATSUAKI , TOYOHARA NAOMI , OZAKI SHIGERU , ISHII TOMOHARU
IPC分类号： G21F9/16 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To make it possible to satisfactorily mix a cementitious solidifying material and mixing water or a cementitious solidifying material, mixing water and radioactive wastes, and improve the drainage and washability not only from a mixer and a mortar measuring tank but also from a washing water receiving tank. SOLUTION: A device for the solidifying treatment of radioactive wastes that conducts solidifying treatment of radioactive wastes with a cementitious solidifying material is equipped with a mixer 8 that mixes the solidifying material and mixing water 4 or the solidifying material, mixing water 4 and radioactive wastes. The body of the mixer 8 is shaped cylindrically, and an exhaust port 9 for a mixture is made at the end of the bottom of the mixer 8. It is installed slantingly so that the exhaust port 9 points downward.

10. 发明专利

JP2000245278A PRODUCTION OF MEDIUM FOR CULTURING ALGAE 失效
公开(公告)号：JP2000245278A
公开(公告)日：2000-09-12
申请号：JP32328499
申请日：1999-11-12
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： SATO TATSUAKI , MIYAMOTO MASAYA , TOYOHARA NAOMI , OKAMOTO MASARU , TAKAMATSU YOSHINARI
IPC分类号： A01G33/00 , C04B28/00 , C04B38/08 , C12M1/00 , C12N1/12 , C12N11/14
摘要： PROBLEM TO BE SOLVED: To provide a method for mass-producing a culture medium for algae serviceable for solving global environmental problems by culturing a large amount of the algae in the ocean or lakes and marshes, absorbing gaseous carbon dioxide, obtaining a raw material for energy sources from the cultured algae, etc. SOLUTION: A mixture prepared by mixing a raw material containing an industrial waste such as coal ash or an incinerated ash with an inorganic material such as sand, a pulverized shell material or a diatom, a hardening material and a culturing nutrient for algae is molded into a molded product and cured to thereby mass-produce a culture medium for algae capable of floating on water. A cement, water glass, lime, a gypsum, etc., and the culturing nutrient for the algae such as a phosphoric acid compound can be used as the hardening material. A phosphorus component, a nitrogen component and an iron component can be used as the culturing nutrient. The mixture is extrusion molded and molded into a cylindrical form and both ends are closed to thereby make the interior thereof hollow. The apparent specific gravity is reduced to thereby make the molded product floatable on water. The specific gravity of the molded product can be reduced by using a material for reducing the weight. A compression molding method, a method for disintegrating a premolded product after premolding or an agitation molding method can be used. Waste heat of a power generation plant or an incineration furnace can be used as a waste for curing the molded product.

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