Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Matsushima, Ryotatsu; Sato, Fuminori; Saito, Yasuo; Atarashi, Daiki*
Proceedings of 3rd International Symposium on Cement-based Materials for Nuclear Wastes (NUWCEM 2018) (USB Flash Drive), 4 Pages, 2018/10
At TRP, LWTF was constructed as a facility for processing low radioactive liquid waste and solid waste generated at TRP, and a cold test is been carrying out. In this facility, initially, nitrate waste liquid after separation of nuclides generated with treatment of low radioactive liquid waste was to be solidified by using borate. However, at present, it is necessary to decompose the nitrate in the liquid waste to reduce the environmental burden. For the reason, as a plan to replace the nitrate with the carbonate and to make it as a cement based encapsulation, we are studying for the introduction of the facility. Currently, as a cement solidification technology development for this liquid waste, we are studying the application of cement material based on blast furnace slag (BFS) as a main component. In this report, we show the results of the test conducted on the actual scale (200 L drum can scale).
; ; Miyazaki, Hitoshi; ; Tanimoto, Kenichi; Terunuma, Seiichi
PNC TN9420 95-011, 13 Pages, 1994/10
None
; Miyazaki, Hitoshi; ; Tanimoto, Kenichi; Terunuma, Seiichi
PNC TN9420 94-010, 103 Pages, 1994/04
None
Horiguchi, Kenichi; Sato, Fuminori; Yamashita, Masaaki; Kojima, Junji; Kadota, Hirofumi*; Atarashi, Daiki*; Sakai, Etsuo*
no journal, ,
A large amount of nitrate in effluent occurring from Tokai reprocessing plant might cause environmental pollution. The effluent is planning to be encapsulated by cement after treated in the nitrate ion decomposition process. In this presentation, we will report the results of the small scale tests for cement solidification technology development of effluent containing a sodium carbonate.
Yamashita, Masaaki; Sato, Fuminori; Horiguchi, Kenichi; Kojima, Junji; Sakai, Etsuo*; Atarashi, Daiki*; Kadota, Hirofumi*
no journal, ,
no abstracts in English
Sato, Fuminori; Horiguchi, Kenichi; Yamashita, Masaaki; Kojima, Junji
no journal, ,
no abstracts in English
Matsushima, Ryotatsu; Sato, Fuminori; Horiguchi, Kenichi; Kojima, Junji; Yamashita, Masaaki*; Sakai, Etsuo*; Atarashi, Daiki*
no journal, ,
no abstracts in English
Matsushima, Ryotatsu; Sato, Fuminori; Saito, Yasuo; Atarashi, Daiki*
no journal, ,
The Low Radioactive Waste Treatment Technology Development Facility (LWTF) of the Tokai Reprocessing Facility was constructed as a facility for processing low radioactive liquid waste and solid waste generated from the reprocessing facility, and cold tests are being conducted. In this facility, nitrate waste liquor generated with the treatment of liquid waste was made solidified by using borate, but now it is planned to replace it with carbonate waste liquid and then to make cement solidified body. It is studying and designing for equipment introduction. In this report, we investigated the influence of strength and waste composition on change of cement solidified body over time by carrying out cement kneading / solidification test on this carbonate waste liquid on a real scale (200 L drum) will be reported.
Sato, Fuminori; Matsushima, Ryotatsu; Ito, Yoshiyuki; Saito, Yasuo
no journal, ,
no abstracts in English
Matsushima, Ryotatsu; Sato, Fuminori; Saito, Yasuo; Atarashi, Daiki*
no journal, ,
no abstracts in English
Horiguchi, Kenichi
no journal, ,
no abstracts in English
Kataoka, Shoji; Tsunoda, Hiroki; Matsushima, Ryotatsu; Sato, Fuminori; Shirozu, Hidetomo
no journal, ,
Low Active Waste Treatment Development Facility (LWTF) in Tokai Reprocessing Plant (TRP) is a facility for treatment of low-radioactive liquid and solid wastes generated from the TRP. The liquid wastes treated in LWTF are concentrated low-radioactive liquid waste and phosphoric acid solution, and they are planned to be solidified with cement in our new equipment. The concentrated liquid wastes are separated into slurry and carbonate compounds by a nuclide separation equipment currently in LWTF and a nitrate decomposition equipment which is under development, and then the cement solidification will be carried out on each liquid waste. Currently, studying and designing for the introduction of the nitrate decomposition equipment and cement solidification equipment is in progress. In this paper, results of the cementation demonstration on simulated waste liquids of the carbonate, phosphoric acid and slurry are reported.
