Development of stable solidification technique of ALPS sediment wastes by apatite ceramics (Contract research); FY2021 Nuclear Energy Science & Technology and Human Resource Development Project

Collaborative Laboratories for Advanced Decommissioning Science; Tokyo Institute of Technology*

JAEA-Review 2022-076, 227 Pages, 2023/03

JAEA-Review-2022-076.pdf:9.42MB

The Collaborative Laboratories for Advanced Decommissioning Science (CLADS), Japan Atomic Energy Agency (JAEA), had been conducting the Nuclear Energy Science & Technology and Human Resource Development Project (hereafter referred to "the Project") in FY2021. The Project aims to contribute to solving problems in the nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station (1F), Tokyo Electric Power Company Holdings, Inc. (TEPCO). For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2019, this report summarizes the research results of the "Development of stable solidification technique of ALPS sediment wastes by apatite ceramics" conducted from FY2019 to FY2021. Since the final year of this proposal was FY2021, the results for three fiscal years were summarized. The present study aims to establish an apatite solidification process of radioactive sediment wastes, which were generated from the ALPS process manipulating the large amount of contaminated water from 1F. We selected the precipitation method and post stabilization for engineering-scale process. Investigation on composition, structure and elution properties of apatite and related phosphate waste forms fabricated from the simulated ALPS sediment wastes were implemented.

A Conceptual design of multidisciplinary-integrated C.F.D. simulation on parallel computers

*; *;

JAERI-Data/Code 96-031, 53 Pages, 1996/11

JAERI-Data-Code-96-031.pdf:1.82MB

no abstracts in English

Conceptual design study and evaluation of an advanced treatment process applying a submerged combustion technique for spent solvents

Uchiyama, Gunzo; Maeda, Mitsuru; Fujine, Sachio; *; *

JAERI-M 93-213, 204 Pages, 1993/10

JAERI-M-93-213.pdf:6.12MB

no abstracts in English

Development of human-friendly and intelligent nulear reactor design support system; A Study of module integration methodology

Araya, Fumimasa; *; *;

Doryoku, Enerugi Gijutsu No Saizensen : Shimpojiumu Koen Rombunshu 1992, p.225 - 230, 1992/00

no abstracts in English

A Study of the uranium enrichment technology of chemical method

Fujine, Sachio; Shiba, Koreyuki

JAERI-M 89-185, 34 Pages, 1989/11

JAERI-M-89-185.pdf:1.0MB

no abstracts in English

Dynamic behavior and control of product enrichment in a centrifuge cascade; A Study of the process simulation as a basis of safeguards design

Okamoto, Tsuyoshi*; *; Nishimura, Hideo

JAERI-M 89-059, 18 Pages, 1989/05

JAERI-M-89-059.pdf:0.76MB

no abstracts in English

Technical Experiences in Engineering Studies on Uranium Fluorination

; ; ;

JAERI-M 6488, 76 Pages, 1976/03

JAERI-M-6488.pdf:2.63MB

no abstracts in English

CAMAC: A Modular Instrumentation Sysytem For Data Handling; A Japanese Version of EUR-4100e 1972

; ; ; ;

JAERI-M 6003, 68 Pages, 1975/03

JAERI-M-6003.pdf:2.26MB

no abstracts in English