Oral presentation

[1B01-03] Vitrification 1

Tue. Mar 26, 2024 10:15 AM - 11:05 AM Room B (21Bildg.2F 21-204)

Chair:Yoshihiro Okamoto(JAEA)

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10:15 AM - 10:30 AM

[1B01] Evaluation of Dissolution Behavior of Platinum Group Alloys under Coexistence of Liquid Waste

*Sayaka Chiba¹, Koya Yamazaki¹, Naoki Tarumi¹, Haruaki Matsuura¹, Isamu Sato¹, Haruka Tada² (1. TCU, 2. IHI)

10:30 AM - 10:45 AM

[1B02] Evaluation of Oxygen Partial Pressure Dependence and Kinetic Studies of Oxidation and Evaporation Behavior of Insoluble Residues (Noble Metal Precipitation) in High Active Liquid Waste

*Yuki Oiwa¹, Isamu Sato¹, Haruaki Matsuura¹, Koya Yamazaki¹, Naoki Tarumi¹, Sayaka Chiba¹, Haruka Tada² (1. TCU, 2. IHI)

10:45 AM - 11:00 AM

[1B03] Effect of vanadium, zirconium and waste components on initial dissolution of Glass waste form

*Toru Sugawara¹, Minako Nagata¹ (1. Akita University)

Time reserved for Chair （11:00 AM - 11:05 AM）

Oral presentation

[1B04-06] Vitrification 2

Tue. Mar 26, 2024 11:05 AM - 11:55 AM Room B (21Bildg.2F 21-204)

Chair:Ryo Nakabayashi(CRIEPI)

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11:05 AM - 11:20 AM

[1B04] Oxidation behavior of Ru and Rh in borosilicate glass evaluated by EXAFS

*Koya Yamazaki¹, Naoki Tarumi¹, Isamu Sato¹, Haruka Tada², Haruaki Matsuura¹ (1. Tokyo City University, 2. IHI Corporation)

11:20 AM - 11:35 AM

[1B05] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(126) Examination of YP formation mechanisms by experiments using zirconium molybdate as a starting material (3)

*Yoshihiro Okamoto¹, Takayuki Nagai¹, Nanako Katsuoka¹, Daisuke Akiyama², Akira Kirishima² (1. JAEA, 2. Tohoku Univ.)

11:35 AM - 11:50 AM

[1B06] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(127) Development of agitation method using small-scale test melter

*Kazuyoshi Uruga¹, Tsuyoshi Usami¹ (1. CRIEPI)

Time reserved for Chair （11:50 AM - 11:55 AM）

Oral presentation

[1B07-11] Residual Water Analysis

Tue. Mar 26, 2024 2:45 PM - 4:05 PM Room B (21Bildg.2F 21-204)

Chair:Yoichi Endo(NFD)

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2:45 PM - 3:00 PM

[1B07] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(7) Analysis of U and Np in the stagnant water at the Unit 1 reactor

*Shiori Morii¹, Kazuki Ouchi¹, Takumi Yomogida¹, Toshitaka Oka¹, Yoshihiro Kitatsuji¹, Yoshikazu Koma¹, Katsuhiro Konno² (1. JAEA, 2. TEPCO HD)

3:00 PM - 3:15 PM

[1B08] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(8) Behavior of moving to sediment of Pu and Am

*Ayako Nitta¹, Hiroshi Hinai¹, Shinichi Kitawaki¹, Koma Yoshikazu¹ (1. JAEA)

3:15 PM - 3:30 PM

[1B09] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(9) Analysis of fine particle containing α-emitting nuclides

Takumi Yomogida¹, Kazuki Ouchi¹, Shiori Morii¹, *Toshitaka Oka¹, Yoshihiro Kitatsuji¹, Yoshikazu Koma¹, Katsuhiro Konno² (1. JAEA, 2. TEPCO HD)

3:30 PM - 3:45 PM

[1B10] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(10) Chemical state analysis of α-emitting nuclide particles obtained from stagnant water sludge sampled from Unit #1 and centralized radioactive waste treatment facility

*Chihiro Toyota¹, Asahi Nitta¹, Akane Usui¹, Yoshihiro Sekio¹, Koji Maeda¹, Yoshikazu Koma¹, Katsuhiro Konno² (1. JAEA, 2. TEPCO HD)

3:45 PM - 4:00 PM

[1B11] α-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS

(11) Dissolution of fine particles and α-emitting nuclides by immersing in an acid solution

Takukmi Yomogida¹, Shiori Morii¹, Toshitaka Oka¹, Yoshikazu Koma¹, *Yoshihiro Kitatsuji¹ (1. JAEA)

Time reserved for Chair （4:00 PM - 4:05 PM）

Oral presentation

[1B12-14] 1F Waste

Tue. Mar 26, 2024 4:05 PM - 4:55 PM Room B (21Bildg.2F 21-204)

Chair:Tomofumi Sakuragi(RWMC)

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4:05 PM - 4:20 PM

[1B12] Thermal analysis of water treatment secondary waste in the presence of water vapor and evaluation of various migration behavior

*Koki Nakahara¹, yamazak Koya¹, kosuke kondo¹, isamu sato¹, yasutomo taziri², toshiro oniki², haruaki matuura¹ (1. tokyo city univercity, 2. IHI)

4:20 PM - 4:35 PM

[1B13] Rheological characterization of simulated carbonate slurries after long-term static storage

*Tomoaki Kato¹, Takuma Horita¹, Isao Yamagishi¹ (1. JAEA)

4:35 PM - 4:50 PM

[1B14] Volatilization of B4C control rods in Fukushima Daiichi nuclear reactors during meltdown: B–Li isotopic signatures in cesium-rich microparticles

*Satoshi Utsunomiya¹, Kazuki Fueda¹, Kenta Minomo¹, Kenji Horie^3,8, Mami Takehara³, Shinya Yamasaki², Takumi Saito⁴, Hiroyuki Shiotsu⁵, Toshihiko Ohnuki⁶, Rodney C Ewing⁷ (1. Kyushu University, 2. Tsukuba Univ., 3. NIPR, 4. University of Tokyo, 5. JAEA, 6. TITECH, 7. Stanford University, 8. The Graduate University for Advanced Studies (SOKENDAI))

Time reserved for Chair （4:50 PM - 4:55 PM）

Oral presentation

[2B01-03] Waste Storage Containers

Wed. Mar 27, 2024 9:45 AM - 10:35 AM Room B (21Bildg.2F 21-204)

Chair:Kazuyoshi Uruga(CRIEPI)

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9:45 AM - 10:00 AM

[2B01] Study of catalysts for hydrogen management in fuel debris storages

(1) Research purpose (significance of FP useful application) and simulated material production/property evaluation

*Isamu Sato¹, Naoki Tarumi¹, Shunichi Suzuki² (1. Tokyo City University, 2. The University of Tokyo)

10:00 AM - 10:15 AM

[2B02] Study of catalysts for hydrogen management in fuel debris storages

(2) Investigation of processability of simulated Fission Products alloys and evaluation of function by irradiation tests

*Naoki Tarumi¹, Atsushi Noda², Isamu Sato¹, Shunichi Suzuki² (1. TCU, 2. UTokyo)

10:15 AM - 10:30 AM

[2B03] Detection of Corrosion in Radioactive Waste Container by Infrared Camera

Mock-up experiment for establishment of new detection method

*Ryuta Suzuki¹, Naoki Watanabe¹, Hiroyuki Minouchi¹, Hajime Maruyama¹, Masatoshi Watahiki¹ (1. JAEA)

Time reserved for Chair （10:30 AM - 10:35 AM）

Oral presentation

[2B04-08] Debris

Wed. Mar 27, 2024 10:35 AM - 11:55 AM Room B (21Bildg.2F 21-204)

Chair:Isamu Sato(TCU)

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10:35 AM - 10:50 AM

[2B04] Study of simulated fuel debris properties by spectroscopic analysis from micro to bulk range

*Ryo Endo¹, Daisuke Akiyama¹, Takumi Yomogida², Yoshihiro Okamoto², Hajime Tanida², Akira Kirishima¹ (1. Tohoku Univ., 2. JAEA)

10:50 AM - 11:05 AM

[2B05] Relation of Cooling Rate to Crystal Structure and Microstructure of (U, Zr)O₂

(3) Generation of Monoclinic Phase from Cubic (U, Zr)O₂ by Annealing and Slowly Cooling

*Yoichi Endo¹, Kan Sakamoto¹, Hiroki Yokoyama¹, Atsushi Ouchi¹, Masato Mizokami², Mutsumi Hirai² (1. NFD, 2. TEPCO HD)

11:05 AM - 11:20 AM

[2B06] Effect of oxygen pressure on the eutectic reaction in the U₃O₈-Fe₂O₃ system

*Toshiki Iwahara¹, Daisuke Akiyama¹, Akira Kirishima¹ (1. Tohoku Univ.)

11:20 AM - 11:35 AM

[2B07] Study on stable storage of nuclear fuel materials

(1) Synthesis of zirconolite with U-Ce mixed oxide

*Kohei Hayashizaki¹, Shun Hirooka¹, Daisuke Akiyama², Akira Kirishima², Tatsutoshi Murakami¹ (1. JAEA, 2. Tohoku University)

11:35 AM - 11:50 AM

[2B08] Study on stable storage of nuclear fuel materials

(2) Study on the synthesis and chemical stability of brannerite compounds containing cerium

*Daisuke Akiyama¹, Yoshihiro Okamoto², Akira Kirishima¹ (1. Tohoku Univ., 2. JAEA)

Time reserved for Chair （11:50 AM - 11:55 AM）

Oral presentation

[2B09-13] Nuclide Separation

Wed. Mar 27, 2024 2:45 PM - 4:05 PM Room B (21Bildg.2F 21-204)

Chair:Yoshihiro Kitatsuji(JAEA)

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2:45 PM - 3:00 PM

[2B09] Behavior of manganese at precipitate formation in molten salt

*Yuri Yamamoto¹, Kazuki Minowa¹, Youko Takahatake², Sou Watanabe², Masahiro Nakamura², Haruaki Matsuura¹ (1. TCU, 2. JAEA)

3:00 PM - 3:15 PM

[2B10] Selective and Efficient Separation of Long-Lived Fission Products from HNO₃(aq) Using Tridentate Pincer-type Extractants Showing Coordination Isomerism

Tasuku Orino¹, Satoru Tsushima^1,2, *Koichiro Takao¹ (1. Tokyo Tech, 2. HZDR)

3:15 PM - 3:30 PM

[2B11] Evaluation of separation performance of alkyl diamidoamine adsorbent using synchrotron radiation XAFS

*Kazuki Minowa¹, Sou Watanabe², Yasutoshi Ban², Youko Takahatake², Masahiko Nakase³, Shinta Watanabe³, Haruaki Matsuura¹ (1. Tokyo city univ., 2. JAEA, 3. Tokyo tech.)

3:30 PM - 3:45 PM

[2B12] Elucidation of adsorption mechanism of zirconium (IV) on the dry yeast treated by nitric acid for uranium recovery

*Masashi Yoshikawa¹, Kazuki Minowa¹, Kenta Hasagawa², Youiti Arai², Sou Watanabe², Haruaki Matuura¹, Yasuhiro Konishi³ (1. Tokyo City University, 2. JAEA, 3. Osaka Prefecture University)

3:45 PM - 4:00 PM

[2B13] Exam for the Mineralization of Analytical Waste liquid

Selection of Cathode Materials

*Takahiro Konno¹, Takahiro Kikuchi¹, Sekine Naoki¹, Yuto Tazawa¹ (1. JAEA)

Time reserved for Chair （4:00 PM - 4:05 PM）

Oral presentation

[2B14-17] Cement and Geopolymer

Wed. Mar 27, 2024 4:05 PM - 5:10 PM Room B (21Bildg.2F 21-204)

Chair:Daisuke Akiyama(Tohoku Univ.)

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4:05 PM - 4:20 PM

[2B14] Uranyl Inside of the Sodium-Activated Metakaolin-Based Geopolymers

*ANIL CAN YILDIRIM¹, Kanako TODA¹, Huiyang MEI², Noboru AOYAGI², Takumi SAITO¹ (1. The University of Tokyo, 2. Japan Atomic Energy Agency)

4:20 PM - 4:35 PM

[2B15] Cs encapsulation by calcined copper ferrocyanide solidified with cement and geopolymer

*Kanako Toda¹, Lang Lang¹, Takumi Saito¹, Yasumasa Tojo² (1. The University of Tokyo, 2. Hokkaido University)

4:35 PM - 4:50 PM

[2B16] Study of treatment methods for radioactive contaminated concrete

*Munemichi Kawaguchi¹ (1. Hokkaido University)

4:50 PM - 5:05 PM

[2B17] Study on the Radionuclide Contamination Mechanisms of Concrete and the Estimation of Distribution of Radionuclides

(26) Important factors for the contamination survey and estimation of concrete in Fukushima Daiichi NPP: cracks, aggregate, cement, competitive ions, dry-carbonation-Ca leaching, reversibility/irreversibility of ion adsorption

*Kazuo Yamada¹, Ippei Maruyama², Kazutoshi Shibuya³, Yasumasa Tojo⁴, Haruka Aihara⁵, Yoshifumi Hosokawa⁶, Go Igarashi⁷, Yoshikazu Koma⁵ (1. NIES, 2. UTokyo, 3. Taiheiyo Consultant, 4. Hokkaido Univ., 5. JAEA, 6. Taiheiyo Cement, 7. Nagoya Univ.)

Time reserved for Chair （5:05 PM - 5:10 PM）

Oral presentation

[2B18-20] Cesium Adsorption Tower

Wed. Mar 27, 2024 5:10 PM - 6:00 PM Room B (21Bildg.2F 21-204)

Chair:Kazuo Yamada(NIES)

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5:10 PM - 5:25 PM

[2B18] Development of adsorbent sampling technology from cesium adsorption vessels

(1) Overview of development of adsorbent sampling technology

*Naoya Nakamura¹, Yasuyuki Suzuki¹, Hiroki Tamura¹, Keito Toda¹, Motoki Nagai¹, Takuya Ogitsu¹, Toshihiko Mizushima¹, Nobuyuki Nakashio¹, Yoshikazu Koma², Kyoichi Asano³ (1. IRID/ATOX, 2. IRID/JAEA, 3. TEPCO HD)

5:25 PM - 5:40 PM

[2B19] Development of adsorbent sampling technology from cesium adsorption vessels

(2) Verification test report of adsorbent sampling technology for actual cesium adsorption vessels

*Yasuyuki Suzuki¹, Naoya Nakamura¹, Hiroki Tamura¹, Keito Toda¹, Kenichi Sakamoto¹, Youji Kawahara¹, Takafumi Yamamoto¹, Akifumi Tanaka¹, Yuta Sato¹, Nobuyuki Nakashio¹ (1. IRID/ATOX)

5:40 PM - 5:55 PM

[2B20] Development of adsorbent sampling technology from cesium adsorption vessels

(3) Dose assessment and exposure results in verification test of adsorbent sampling technology

*Tsuyoshi Koshiba¹, Naoya Nakamura¹, Hikaru Wada¹, Kunio Tanaka¹, Takahiro Toriumi¹, Hiroki Tamura¹, Keito Toda¹, Asami Tsurumaki¹, Ryo Watanabe¹, Nobuyuki Nakashio¹ (1. IRID/ATOX)

Time reserved for Chair （5:55 PM - 6:00 PM）

Sessions

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

[1B01-03] Vitrification 1

[1B04-06] Vitrification 2

(126) Examination of YP formation mechanisms by experiments using zirconium molybdate as a starting material (3)

(127) Development of agitation method using small-scale test melter

[1B07-11] Residual Water Analysis

(7) Analysis of U and Np in the stagnant water at the Unit 1 reactor

(8) Behavior of moving to sediment of Pu and Am

(9) Analysis of fine particle containing α-emitting nuclides

(10) Chemical state analysis of α-emitting nuclide particles obtained from stagnant water sludge sampled from Unit #1 and centralized radioactive waste treatment facility

(11) Dissolution of fine particles and α-emitting nuclides by immersing in an acid solution

[1B12-14] 1F Waste

[2B01-03] Waste Storage Containers

(1) Research purpose (significance of FP useful application) and simulated material production/property evaluation

(2) Investigation of processability of simulated Fission Products alloys and evaluation of function by irradiation tests

Mock-up experiment for establishment of new detection method

[2B04-08] Debris

(3) Generation of Monoclinic Phase from Cubic (U, Zr)O2 by Annealing and Slowly Cooling

(1) Synthesis of zirconolite with U-Ce mixed oxide

(2) Study on the synthesis and chemical stability of brannerite compounds containing cerium

[2B09-13] Nuclide Separation

Selection of Cathode Materials

[2B14-17] Cement and Geopolymer

(26) Important factors for the contamination survey and estimation of concrete in Fukushima Daiichi NPP: cracks, aggregate, cement, competitive ions, dry-carbonation-Ca leaching, reversibility/irreversibility of ion adsorption

[2B18-20] Cesium Adsorption Tower

(1) Overview of development of adsorbent sampling technology

(2) Verification test report of adsorbent sampling technology for actual cesium adsorption vessels

(3) Dose assessment and exposure results in verification test of adsorbent sampling technology

Authentication

(3) Generation of Monoclinic Phase from Cubic (U, Zr)O₂ by Annealing and Slowly Cooling