Oral presentation

[1B01-06] Debris and Waste Management

Wed. Sep 16, 2020 10:00 AM - 11:45 AM Room B (Zoom room 2)

Chair:Yogarajah Elakneswaran(Hokkaido Univ.)

10:00 AM - 10:15 AM

[1B01] Research on the stability of fuel debris consisting of oxides and alloys

(6)Synthesis and structure analysis of simulated fuel debris in the UO₂-Zr-SS system

*Daisuke Akiyama¹, Akira Kirishima¹, Nobuaki Sato¹, Takayuki Sasaki², Masayuki Watanabe³, Yuta Kumagai³, Ryoji Kusaka³ (1. Tohoku Univ., 2. Kyoto Univ., 3. JAEA)

10:15 AM - 10:30 AM

[1B02] The laser decontamination and decommissioning for steel drum cans

*Eisuke John Minehara¹ (1. LDD Corporation)

10:30 AM - 10:45 AM

[1B03] A Study on the evaluation method to determine the radioactivity concentration in radioactive waste on Oarai Research and Development Institute

*Kazuki Asakura¹, Yusuke Shimomura¹, Yasushi Donomae¹, Kazuyuki Abe¹, Ryoichi Kitamura¹ (1. JAEA)

10:45 AM - 11:00 AM

[1B04] Leaching test of Pb-containg products generated as wastes

*Junya Sato¹, Osamu Ohsone¹, Toshimitsu Saito¹, Keita Irisawa¹, Takeshi Osugi¹, Tomoyuki Sone¹ (1. JAEA)

11:00 AM - 11:15 AM

[1B05] Reduction of Hydrogen Concentration by Particulate Catalysts Installed into Radioactive Waste Storage Containers

Effect of Controlling Factors on Concentration Reduction

*Kazuyuki Takase¹, Ky Tri Vu¹ (1. Nagaoka University of Technology)

11:15 AM - 11:30 AM

[1B06] Reduction of Hydrogen Concentration by Particulate Catalysts Installed into Radioactive Waste Storage Containers

(2)Evaluation of Reaction Rates of Particulate Catalysts

*Ky Tri Vu¹, Kazuyuki Takase¹ (1. Nagaoka University of Technology)

Time reserved for Chair （11:30 AM - 11:45 AM）

Oral presentation

[1B07-10] Geopolymer 1

Wed. Sep 16, 2020 2:45 PM - 3:55 PM Room B (Zoom room 2)

Chair:Daisuke Akiyama(Tohoku Univ.)

2:45 PM - 3:00 PM

[1B07] Cation immobilization in metakaolin-based geopolymer

*Yogarajah Elakneswaran¹, Xiaobo Niu¹, Yuka Morinaga¹, John Provis, Tsutomu Sato¹ (1. Hokkaido University)

3:00 PM - 3:15 PM

[1B08] Effect of Dehydration on Mechanical Properties and Pore Distribution of Potassium and Metakaolin-based Geopolymer

*Yaru Yang¹, Suematsu Hisayuki¹, Thi Mai Dung Do¹, Thi Chau Duyen Le¹ (1. Extreme Energy-Density Research Institute, Nagaoka University of Technology )

3:15 PM - 3:30 PM

[1B09] Retention Mechanism of Cesium in Chabazite Embedded into Metakaolin-Based Alkali Activated Materials

*Chaerun Raudhatul Islam¹, Natatsawas Soonthornwiphat¹, Kanako Toda¹, Kazuma Kuroda¹, Ryosuke Kikuchi¹, Tsubasa Otake¹, John Provis², Yogarajah Elakneswaran¹, Tsutomu Sato¹ (1. Hokkaido Univ., 2. The University of Sheffield)

3:30 PM - 3:45 PM

[1B10] Development of scale-up technology for practical use of solidified geopolymer

*Keisuke Tanizawa¹, Hayato Maruyama¹, Isamu Kudo¹, Tsutomu Sato² (1. ADVAN ENG, 2. Hokkaido Univ.)

Time reserved for Chair （3:45 PM - 3:55 PM）

Oral presentation

[1B11-14] Geopolymer 2

Wed. Sep 16, 2020 3:55 PM - 5:05 PM Room B (Zoom room 2)

Chair:Michio Kikuchi(CRIEPI)

3:55 PM - 4:10 PM

[1B11] Development of compressing method for geopolymer solidification

(2)Effect of mixing method on compressive strength

*Rui Akayama¹, Kanae Matsuyama¹, Masaru Yuhara¹, Fumi Takahashi¹ (1. TOSHIBA ESS)

4:10 PM - 4:25 PM

[1B12] Solidification/stabilization of spent ¹³⁷Cs-adsorbed copper ferrocyanide with geopolymer

*Tsuneki ICHIKAWA^1,2, Kazuo YAMADA², Kazuko HAGA³ (1. Hokkaido Univ, 2. NIES, 3. Taiheiyo Consultant)

4:25 PM - 4:40 PM

[1B13] A geopolymer for solidificaiton of radioactive waste

(4)Solidification of radioactive wastes using SIAL^®solidification technology

*Nobuyuki SEKINE¹, Eiki ADACHI¹, Kimihiro ONOZAKI¹, Hisashi MIKAMI¹, Marcela Blazsekova², Maros Juraska², Milena Prazska², Toshiyuki TAKEDA³, Masaki IIDA³, Hirotaka OHURA³ (1. Fuji Electric, 2. Jacobs Nuclear Slovakia, 3. JAPC)

4:40 PM - 4:55 PM

[1B14] A geopolymer for solidification of radioactive waste

(5)Volume change of geopolymers by heating

*Eiki ADACHI¹, Nobuyuki SEKINE¹, Hirotaka SUDA¹ (1. Fuji electric)

Time reserved for Chair （4:55 PM - 5:05 PM）

Oral presentation

[2B01-06] Stabilization and Immobilization 1

Thu. Sep 17, 2020 10:00 AM - 11:45 AM Room B (Zoom room 2)

Chair:Nobuyuki NAKASHIO(ATOX)

10:00 AM - 10:15 AM

[2B01] Physical Properties test for flowability of K-based alkali-activated materials

*Yoshihisa Hiraki¹, Toshimitsu Saito¹, Ayaka Kakuda¹, Takeshi Osugi¹, Tomoyuki Sone¹, Ryoichiro Kuroki¹, Isamu Kudo², Yogarajah Elakneswaran³, Tsutomu Sato³ (1. JAEA, 2. ADVAN ENG, 3. Hokkaido Univ.)

10:15 AM - 10:30 AM

[2B02] Physical Properties test for solidification strength and Long-term stability of K-based alkali-activated materials

*Ayaka Kakuda¹, Osamu Osone¹, Yoshihisa Hiraki¹, Takeshi Osugi¹, Tomoyuki Sone¹, Ryoichiro Kuroki¹, Isamu Kudo², Yogarajah Elakneswaran³, Tsutomu Sato³ (1. JAEA, 2. ADVAN ENG, 3. Hokkaido University)

10:30 AM - 10:45 AM

[2B03] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(1)General Plan

*Kenji Takeshita¹, Masahiko Nakase¹, Shun Kanagawa², Takatoshi Hijikata², Yoshikazu Koma³ (1. Tokyo Tech, 2. CRIEPI, 3. JAEA)

10:45 AM - 11:00 AM

[2B04] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(2)Synthesis and characterization of apatite waste forms by solid-state reaction

*Shun Kanagawa^1,2, Masahiko Nakase², Ayumu Masuda², Kazuo Utsumi², Takatoshi Hijikata¹, Kenji Takeshita² (1. CRIEPI, 2. Tokyo Tech)

11:00 AM - 11:15 AM

[2B05] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(3)Synthesis of apatite waste forms by sol/gel and hydrothermal methods and their characterization

*Masahiko Nakase¹, Ayumu Masuda¹, Shun Kanagawa^1,2, Kazuo Utsumi¹, Takatoshi Hijikata², Kenji Takeshita¹ (1. Tokyo Tech, 2. CRIEPI)

11:15 AM - 11:30 AM

[2B06] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(4)Development of low temperature solidification technologies for apatite powder

*Takatoshi Hijikata¹, Masahiko Nakase², Kazuo Utsumi², Kenji Takeshita² (1. Central Reasearch Institute of Electric Power Industry, 2. Tokyo Institute of Technology)

Time reserved for Chair （11:30 AM - 11:45 AM）

Oral presentation

[2B07-11] Stabilization and Immobilization 2

Thu. Sep 17, 2020 2:45 PM - 4:10 PM Room B (Zoom room 2)

Chair:Masahiko Nakase(Tokyo Tech)

2:45 PM - 3:00 PM

[2B07] Filtration drying treatment of decomposed ion exchange resin residue by freezing and thawing method

(2)Bench Scale Test

*tadashi sasaki¹, Yuji Nagai¹, Mitsushi Motoyama¹, Takahiro Kikuchi¹, Takao Ikeda¹ (1. JGC JAPAN CORPORATION)

3:00 PM - 3:15 PM

[2B08] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(8)Investigation of method for screening test of contaminated water management waste applied to solidification by cement and Alkali Activated Material

*Takumi Taniguchi^1,2, Masahiro Namiki^1,2, Takeshi Osugi^1,2, Tomoyuki Sone^1,2, Ryoichiro Kuroki^1,2, Michio Kikuchi³, Takeshi Yamamoto³, Taku Otsuka³, Yoshihisa Kaneda⁴, Norihisa Osawa⁴ (1. JAEA, 2. IRID, 3. CRIEPI, 4. Taiheiyo Consultant)

3:15 PM - 3:30 PM

[2B09] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(9)Synthesis of simulated carbonate slurry

*Nobuyuki NAKASHIO¹, Takahiro KAWASOE¹, Kohei AIKAWA¹, Michio KIKUCHI², Takeshi YAMAMOTO², Yoshihisa KANEDA³, Kazuko HAGA³, Takeshi OSUGI⁴, Tomoyuki SONE⁴, Ryoichiro KUROKI⁴ (1. IRID/ATOX, 2. CRIEPI, 3. Taiheiyo Consultant, 4. IRID/JAEA)

3:30 PM - 3:45 PM

[2B10] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(10)Characteristic evaluation of carbonate slurry-containing solidified body formed by cement or Alkali Activated Material

*Michio Kikuchi¹, Takeshi Yamamoto¹, Taku Otsuka¹, Takaya Kawato¹, Yoshihisa Kaneda², Masahito Shibata², Kazuko Haga², Takeshi Osugi³, Tomoyuki Sone³, Ryoichiro Kuroki³ (1. CRIEPI, 2. Taiheiyo Consultant, 3. JAEA/IRID)

3:45 PM - 4:00 PM

[2B11] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(11)Dissolution test of solidified body of cement and Alkali Activated Material

*yoshihisa kaneda¹, Kazuko Haga¹, Masahito Shibata¹, Norihisa Osawa¹, Michio Kikuchi², Takeshi Yamamoto², Takaya Kawato², Takeshi Osugi³, Tomoyuki Sone³, Ryoichiro Kuroki³ (1. taiheiyo consultant, 2. CRIEPI, 3. IRID/JAEA)

Time reserved for Chair （4:00 PM - 4:10 PM）

Oral presentation

[2B12-15] Stabilization and Immobilization 3

Thu. Sep 17, 2020 4:10 PM - 5:20 PM Room B (Zoom room 2)

Chair:Tomofumi Sakuragi(RWMC)

4:10 PM - 4:25 PM

[2B12] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(12)Modeling the dissolution behavior of solidified body of cement and Alkali Activated Material

*Yutaro Kobayashi¹, Kazuko Haga¹, Yoshihisa Kaneda¹, Kazuma Kuroda^2,3, Tsutomu Sato², Takeshi Osugi⁴, Tomoyuki Sone⁴, Ryoichiro Kuroki⁴ (1. Taiheiyo Consultant, 2. Hokkaido Univ., 3. present: CRIEPI, 4. IRID/JAEA)

4:25 PM - 4:40 PM

[2B13] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(13)γ-ray irradiation characteristics of solidified materials containing carbonate slurry

*Jun KATO¹, Ken IMAIZUMI¹, Takeshi OSUGI¹, Tomoyuki SONE¹, Ryoichiro KUROKI¹, Michio KIKUCHI², Takeshi YAMAMOTO², Taku OTSUKA², Yoshihisa KANEDA³, Norihisa OSAWA³ (1. IRID/JAEA, 2. CRIEPI, 3. Taiheiyo Consultant)

4:40 PM - 4:55 PM

[2B14] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(14)Cesium volatilization from inorganic absorbents during heat treatment

*Kazuyoshi Uruga¹, Shizue Furukawa¹, Takatoshi Hijikata¹, Tadafumi Koyama¹, Takeshi Osugi^2,3, Tomoyuki Sone^2,3, Ryoichiro Kuroki^2,3 (1. CRIEPI, 2. IRID, 3. JAEA)

4:55 PM - 5:10 PM

[2B15] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(15)Investigation of approach for selecting solidification techniques applied to contaminated water management waste No.2

Michio KIKUCHI¹, *Shizue FURUKAWA¹, Tadafumi KOYAMA¹, Taku OTSUKA¹, Takeshi YAMAMOTO¹, Ken IMAIZUMI², Takeshi OSUGI², Tomoyuki SONE², Ryoichiro KUROKI² (1. CRIEPI, 2. IRID/JAEA)

Time reserved for Chair （5:10 PM - 5:20 PM）

Oral presentation

[2B16-19] Vitrification

Thu. Sep 17, 2020 5:20 PM - 6:30 PM Room B (Zoom room 2)

Chair:Takatoshi Hijikata(CRIEPI)

5:20 PM - 5:35 PM

[2B16] Oxidation and Vaporization Behaviors of Insoluble Residue (noble metal precipitation) during Fabrication of High Level Radioactive Wastes

*Ryohei Hattori¹, Asahi Nitta¹, Isamu Sato¹, Haruaki Matuura¹, Haruka Tada² (1. Tokyo City Univ, 2. IHI Corporation)

5:35 PM - 5:50 PM

[2B17] Basic research programs of vitrification technology for waste volume reduction

(78)Research report in 2019

*Norie Hirao¹, Norio Kanehira¹, Toshiki Fukui², Masayuki Takeuchi³, Yoshihiro Okamoto³, Tsuyoshi Tsukada⁴ (1. JNFL, 2. IHI, 3. JAEA, 4. CRIEPI)

5:50 PM - 6:05 PM

[2B18] Basic research programs of vitrification technology for waste volume reduction

(79)Scenario study on the volume reduction and disposal impact of waste generated from high-burnup UO₂ fuel

*Tomofumi Sakuragi¹, Hidekazu Asano¹, Tomohiro Okamura², Minari Eriko², Masahiko Nakase², Kenji Takeshita², Toshiro Oniki³ (1. RWMC, 2. Tokyo Tech, 3. IHI)

6:05 PM - 6:20 PM

[2B19] Basic research programs of vitrification technology for waste volume reduction

(80)Stress evaluation of simulated waste borosilicate glass samples using synchrotron radiation X-rays

*Aki Tominaga¹, Takahia Shobu¹, Seiichi Sato², Kiyoshi Hatakeyama³, Takayuki Nagai¹ (1. JAEA, 2. Inspection Development Company, 3. E&E Techno Service Co.)

Time reserved for Chair （6:20 PM - 6:30 PM）

Oral presentation

[3B01-06] Nuclide separation and Transmutation

Fri. Sep 18, 2020 10:00 AM - 11:45 AM Room B (Zoom room 2)

Chair:Jun Kato(JAEA)

10:00 AM - 10:15 AM

[3B01] Realization Development of the Flexible Waste Management System for MA P&T Technology

(27)Selection of HLW granule calcination temperature for the efficient FWM system

*Akihiro Suzuki¹, Yoichi Endo¹, Tetsuo Fukasawa¹, Yusa Muroya², Tatsuro Matsumura³, Yaohiro Inagaki⁴, Tatsumi Arima⁴ (1. NFD, 2. Osaka Univ., 3. JAEA, 4. Kyushu Univ.)

10:15 AM - 10:30 AM

[3B02] Realization Development of the Flexible Waste Management System for MA P&T Technology

(28)Optimization of Process Parameter of Rotary Kiln for HLW Granule Production

*Yoichi Endo¹, Akihiro Suzuki¹ (1. NFD)

10:30 AM - 10:45 AM

[3B03] Realization Development of the Flexible Waste Management System for MA P&T Technology

(29)Evaluation of long term chemical stability of the HLW granule during the storage

*Yusa Muroya¹, Yaohiro Inagaki², Tatsumi Arima², Akihiro Suzuki³ (1. ISIR, Osaka Univ., 2. Kyushu Univ., 3. NFD)

10:45 AM - 11:00 AM

[3B04] Realization Development of the Flexible Waste Management System for MA P&T
Technology

(30)Extraction behavior of Am, Cm and Np from the dissolved solution from simulated HLW granules

*Tatsuro Matsumura¹, Sho Ihii¹, Akihiro Suzuki² (1. JAEA, 2. NFD)

11:00 AM - 11:15 AM

[3B05] Realization Development of the Flexible Waste Management System for MA P&T Technology

(31) Reduction Effect of Disposal Site Area Applying High Loading Vitrification

*Keita Endo¹, Daisuke Watanabe¹, Tetsuo Fukasawa², Akihiro Suzuki² (1. HGNE, 2. NFD)

11:15 AM - 11:30 AM

[3B06] Realization Development of the Flexible Waste Management System for MA P&T Technology

(32) ADS Fuel Heat Reduction by the Application to FR/ADS Cycle

*Tetsuo Fukasawa¹, Akihiro Suzuki¹, Yoichi Endo¹, Keita Endo², Daisuke Watanabe² (1. NFD, 2. HGNE)

Time reserved for Chair （11:30 AM - 11:45 AM）

Oral presentation

[3B07-10] Nuclide Adsorption and Separation 1

Fri. Sep 18, 2020 2:45 PM - 3:55 PM Room B (Zoom room 2)

Chair:Akihiro Suzuki(NFD)

2:45 PM - 3:00 PM

[3B07] Mechanism study on Cs desorption from clay minerals by rapid cation exchange under subcritical water environment by in-situ XRD and XAFS measurement

*Tatsuya Fukuda¹, Ryo Takahashi¹, Takuhi Hara¹, Koji Ohara², Kazuo Kato², Daiju Matsumura³, Masahiko Nakase¹, Kenji Takeshita¹ (1. Tokyo Tech, 2. JASRI, 3. JAEA)

3:00 PM - 3:15 PM

[3B08] Study of Separation of Cesium Compounds Using Argon Plasma Ⅱ

*Yutaka Nishimura¹, Yutaro Aoki¹, Glenn Harvel², Fumihito Mishima¹, Naoki Nomura¹, Shigehiro Nishijima¹, Takeyoshi Sunagawa¹ (1. FUT, 2. Ontario Tech Univ.)

3:15 PM - 3:30 PM

[3B09] Synthesis and evaluation of crystalline silicotitanate for adsorption of strontium

*Shigeru Hirano¹, Keisuke Tokunaga², Satoshi Yoshida¹, Youju Shimizu¹, Yuki Oba¹ (1. TOSOH, 2. TOSOH ZEOLUM)

3:30 PM - 3:45 PM

[3B10] Desorption of cesium from clay minerals by repetitive chemical processing

*Yui Kaneta^1,2, Keiichi Yokoyama², Tsuyoshi Yaita^1,2 (1. Kobe Univ., 2. JAEA)

Time reserved for Chair （3:45 PM - 3:55 PM）

Oral presentation

[3B11-13] Nuclide adsorption and separation 2

Fri. Sep 18, 2020 3:55 PM - 4:50 PM Room B (Zoom room 2)

Chair:Tetsuo Fukasawa(NFD)

3:55 PM - 4:10 PM

[3B11] Application of high void granulation technique to radionuclide adsorbent

*NORIAKI USHIO¹, HIROAKI WARITA¹, NOBUHIRO NONAKA¹, KUNIYUKI NAKANISHI¹, KIYOTAKA YANAGAWA¹, TOSHIO HAYASHI¹ (1. Kao)

4:10 PM - 4:25 PM

[3B12] Decontamination process of alkali chloride baths containing nuclear material by precipitation and distillation techniques

*Jun-ya Ibe¹, Megumi Aso¹, Masayuki Watanabe², Watanabe Sou², Youko Takahatake², Haruaki Matsuura¹ (1. Tokyo City University, 2. Japan Atomic Energy Agency)

4:25 PM - 4:40 PM

[3B13] Adsorption characteristics of strontium ion adsorbentconsist of potassium hydrogen dititanate hydrate

*Takafumi Tanaka¹, Hidenori Ishioka¹, Ayaka Ando¹, Tomoko Yoshimi¹ (1. Titan Kogyo ,Ltd.)

Time reserved for Chair （4:40 PM - 4:50 PM）

Oral presentation

[3C01-04] Contaminated Concrete at Fukushima Daiichi NPS Site 1

Fri. Sep 18, 2020 2:45 PM - 3:55 PM Room C (Zoom room 3)

Chair:Tatsuro Matsumura(JAEA)

2:45 PM - 3:00 PM

[3C01] Study on penetration behavior of cesium into concrete

Investigation on Sorption/Diffusion Behavior in Normalized Concrete for a Simulation Method of Cs Penetration

*kai yoneyama¹, Isamu Sato¹, Haruaki Matsuura¹, Koki Koshigoe¹, Naoya Miyahara¹, Norihiko Kurihara¹, Eriko Suzuki², Masahiko Osaka² (1. Tokyo City University, 2. Japan Atomic Energy Agency)

3:00 PM - 3:15 PM

[3C02] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(5)Overall plan of the Study

Ippei Maruyama^1,2, Kazuo Yamada³, *Masaya Ida⁴, Kazuko Haga⁴, Go Igarashi², Yoshikazu Koma⁵ (1. Nagoya Univ., 2. Univ. of Tokyo, 3. NIES, 4. Taiheiyo Consultant, 5. JAEA)

3:15 PM - 3:30 PM

[3C03] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(6)Experimental Study on the effects of concrete characters on the penetrate of Cs and Sr

*Sayuri Tomita¹, Masaya Ida¹, Kazuko Haga¹, Kazuo Yamada², Go Igarashi³, Ippei Maruyama^3,4 (1. Taiheiyo Consultant, 2. NIES, 3. Tokyo Univ., 4. Nagoya Univ.)

3:30 PM - 3:45 PM

[3C04] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(7)Effects of concrete characters on the Cs/Sr penetration in the real concentration ranges

*Kazuo Yamada¹, Rohith Kiran², Ippei Maruyama², Go Igarashi³, Sayuri Tomita⁴ (1. NIES, 2. Nagoya Univ., 3. Univ. of Tokyo, 4. Taiheiyo Consultant)

Time reserved for Chair （3:45 PM - 3:55 PM）

Oral presentation

[3C05-08] Contaminated Concrete at Fukushima Daiichi NPS Site 2

Fri. Sep 18, 2020 3:55 PM - 5:05 PM Room C (Zoom room 3)

Chair:Kazuyoshi Uruga(CRIEPI)

3:55 PM - 4:10 PM

[3C05] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(8)Liquid water transport in concrete

*Ippei Maruyama¹, Kiran Rohith¹, Go Igarashi², Sayuri Tomita³, Kazuko Haga³, Kazuo Yamada⁴ (1. Nagoya Univ., 2. The Univ. of Tokyo, 3. Taiheiyo Consultant Co.,Ltd., 4. National institute for Environmental Studies)

4:10 PM - 4:25 PM

[3C06] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(9)Penetration of alpha radionuclides into hardened cement paste

*Haruka Aihara¹, Atsuhiro Shibata¹, Yoshikazu Koma¹, Sayuri Tomita², Kazuo Yamada³, Ippei Maruyama⁴ (1. JAEA, 2. Taiheiyo Consultant , 3. NIES, 4. Nagoya Univ.)

4:25 PM - 4:40 PM

[3C07] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(10)Modeling of penetration behavior of Cs and Sr into concrete at turbine building basement of Fukushima Daiichi Nuclear Power Station

*Kazuko Haga¹, Sayuri Tomita¹, Yutaro Kobayashi¹, Yoshifumi Hosokawa², Kazuo Yamada³, Haruka Aihara⁴, Go Igarashi⁵, Ippei Maruyama⁶ (1. Taiheiyo Consultant Co.,Ltd, 2. Taiheiyo Cement Co.,Ltd., 3. National institute for Environmental Studies, 4. Japan Atomic Energy Agency (JAEA), 5. The University of Tokyo, 6. Nagoya University)

4:40 PM - 4:55 PM

[3C08] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(11)General Overview and future works

*Go Igarashi¹, Kazuko Haga², Kazuo Yamada³, Yoshikazu Koma⁴, Ippei Maruyama⁵ (1. Univ. of Tokyo, 2. Taiheiyo Consultant, 3. NIES, 4. JAEA, 5. Nagoya Univ.)

Time reserved for Chair （4:55 PM - 5:05 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 505-1 Radioactive Waste Management

[1B01-06] Debris and Waste Management

(6)Synthesis and structure analysis of simulated fuel debris in the UO2-Zr-SS system

Effect of Controlling Factors on Concentration Reduction

(2)Evaluation of Reaction Rates of Particulate Catalysts

[1B07-10] Geopolymer 1

[1B11-14] Geopolymer 2

(2)Effect of mixing method on compressive strength

(4)Solidification of radioactive wastes using SIAL® solidification technology

(5)Volume change of geopolymers by heating

[2B01-06] Stabilization and Immobilization 1

(1)General Plan

(2)Synthesis and characterization of apatite waste forms by solid-state reaction

(3)Synthesis of apatite waste forms by sol/gel and hydrothermal methods and their characterization

(4)Development of low temperature solidification technologies for apatite powder

[2B07-11] Stabilization and Immobilization 2

(2)Bench Scale Test

(8)Investigation of method for screening test of contaminated water management waste applied to solidification by cement and Alkali Activated Material

(9)Synthesis of simulated carbonate slurry

(10)Characteristic evaluation of carbonate slurry-containing solidified body formed by cement or Alkali Activated Material

(11)Dissolution test of solidified body of cement and Alkali Activated Material

[2B12-15] Stabilization and Immobilization 3

(12)Modeling the dissolution behavior of solidified body of cement and Alkali Activated Material

(13)γ-ray irradiation characteristics of solidified materials containing carbonate slurry

(14)Cesium volatilization from inorganic absorbents during heat treatment

(15)Investigation of approach for selecting solidification techniques applied to contaminated water management waste No.2

[2B16-19] Vitrification

(78)Research report in 2019

(79)Scenario study on the volume reduction and disposal impact of waste generated from high-burnup UO2 fuel

(80)Stress evaluation of simulated waste borosilicate glass samples using synchrotron radiation X-rays

[3B01-06] Nuclide separation and Transmutation

(27)Selection of HLW granule calcination temperature for the efficient FWM system

(28)Optimization of Process Parameter of Rotary Kiln for HLW Granule Production

(29)Evaluation of long term chemical stability of the HLW granule during the storage

(30)Extraction behavior of Am, Cm and Np from the dissolved solution from simulated HLW granules

(31) Reduction Effect of Disposal Site Area Applying High Loading Vitrification

(32) ADS Fuel Heat Reduction by the Application to FR/ADS Cycle

[3B07-10] Nuclide Adsorption and Separation 1

[3B11-13] Nuclide adsorption and separation 2

[3C01-04] Contaminated Concrete at Fukushima Daiichi NPS Site 1

Investigation on Sorption/Diffusion Behavior in Normalized Concrete for a Simulation Method of Cs Penetration

(5)Overall plan of the Study

(6)Experimental Study on the effects of concrete characters on the penetrate of Cs and Sr

(7)Effects of concrete characters on the Cs/Sr penetration in the real concentration ranges

[3C05-08] Contaminated Concrete at Fukushima Daiichi NPS Site 2

(8)Liquid water transport in concrete

(9)Penetration of alpha radionuclides into hardened cement paste

(10)Modeling of penetration behavior of Cs and Sr into concrete at turbine building basement of Fukushima Daiichi Nuclear Power Station

(11)General Overview and future works

Authentication

(6)Synthesis and structure analysis of simulated fuel debris in the UO₂-Zr-SS system

(4)Solidification of radioactive wastes using SIAL^®solidification technology

(79)Scenario study on the volume reduction and disposal impact of waste generated from high-burnup UO₂ fuel