Oral presentation

[1A01-05] Waste at Fukushima Daiichi NPS

Wed. Sep 7, 2022 10:30 AM - 11:55 AM Room A (E1 Bildg.1F No.10)

Chair:Fumihiko Kanayama(JAEA)

10:30 AM - 10:45 AM

[1A01] Dissolution behavior of CaUO₄ in the presence of carbonate

*Yuto Kato¹, Taishi Kobayashi¹, Takayuki Sasaki¹ (1. Kyoto Univ.)

10:45 AM - 11:00 AM

[1A02] Analysis for investigation of sludge observed in the storage tank of Fukushima Daiichi Nuclear Power

*Yukako Yamaguchi¹, Yoshihiro Sekio¹, Koji Maeda¹, Yoshikazu Koma¹, Akihiko Fujiya² (1. JAEA, 2. TEPCO HD)

11:00 AM - 11:15 AM

[1A03] Development of inventory evaluation methods for the radioactive wastes of Fukushima Daiichi Nuclear Power Station

(16) Practical grouping of radioelements and wastes in the modelling estimation method

*Daisuke Sugiyama¹, Shingo Tanaka ¹, Yoshikazu Koma^2,3, Youko Takahatake^2,3, Yoshio Aoki³ (1. CRIEPI, 2. JAEA, 3. IRID)

11:15 AM - 11:30 AM

[1A04] Fluorination Method for Classification of the Waste Generated by Fuel Debris Removal

(7) Fluorination Experiment with Simulated Waste (Part 3)

*Keita Endo¹, Daisuke Watanabe¹, Masahide Takano², Ayako Sudo² (1. Hitachi-GE, 2. JAEA)

11:30 AM - 11:45 AM

[1A05] Fluorination Method for Classification of the Waste Generated by Fuel Debris Removal

(8) Preparation and Analysis of the Simulated MCCI Products by Light-concentrating Heating under Temperature Gradient

*Masahide Takano¹, Ayako Sudo¹, Daisuke Watanabe² (1. JAEA, 2. Hitachi-GE)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[1A06-08] Nuclide Adsorption and Separation 1

Wed. Sep 7, 2022 2:45 PM - 3:35 PM Room A (E1 Bildg.1F No.10)

Chair:Daisuke Sugiyama(CRIEPI)

2:45 PM - 3:00 PM

[1A06] Uranium recovery from the solution originated sludge waste

(1) Selection of some uranium recovery methods

*Youko Takahatake¹, Madoka Saito¹, Toshihiro Iwamoto¹, Sou Watanabe¹, Masayuki Watanabe¹ (1. JAEA)

3:00 PM - 3:15 PM

[1A07] Uranium recovery from the solution originated sludge waste

(2) Comparison study of uranyl nitrate separation methods by monoamide extractant

*Madoka Saito¹, Youko Takahatake¹, Sou Watanabe¹, Masayuki Watanabe¹, Takehiko Tsukahara², Atsuki Naruse² (1. JAEA, 2. Tokyo Tech)

3:15 PM - 3:30 PM

[1A08] Uranium recovery from the solution originated sludge waste

(3) Evaluation of several extractants on cerium (IV) nitrate separation using thermoresponsive polymer

*Toshihiro Iwamoto¹, Madoka Saito¹, Youko Takahatake¹, Sou Watanabe¹, Masayuki Watanabe¹, Atsuki Naruse², Takehiko Tsukahara² (1. JAEA, 2. Tokyo Tech)

Time reserved for Chair （3:30 PM - 3:35 PM）

Oral presentation

[1A09-12] Nuclide Adsorption and Separation 2

Wed. Sep 7, 2022 3:35 PM - 4:40 PM Room A (E1 Bildg.1F No.10)

Chair:Masahide Takano(JAEA)

3:35 PM - 3:50 PM

[1A09] A study for decomposition and recycle of used impregnation adsorbents generated in MA separation recovery process

*Go Shinoda¹, Tsuyosi Arai¹, Kenta Ishizawa¹ (1. Shibaura Inst. of Tech.)

3:50 PM - 4:05 PM

[1A10] Examination of applicability of the novel iminodiacetic acid chelate adsorbent for recovery of trace nuclei contained in concentrated sodium liquid waste

*Shogo Uchiyama¹, Ryotatsu Matsushima², Koki Koshigoe², Fuminori Sato², Tsuyoshi Arai¹ (1. Shibaura Inst. of Tech., 2. JAEA)

4:05 PM - 4:20 PM

[1A11] Evaluation of separation ability of uranyl ions using temperature-swing gelification extraction

*Atsuki Naruse¹, Takehiko Tsukahara¹, Mototetsu Kimura¹, Naokazu Idota¹ (1. Tokyo Tech)

4:20 PM - 4:35 PM

[1A12] Effect of solution mixing on continuous removal of radioactive strontium from fresh water by column co-crystallization with calcium carbonate

*Tsuneki Ichikawa^1,2, Kazuo Yamada² (1. Hokkaido Univ., 2. NIES)

Time reserved for Chair （4:35 PM - 4:40 PM）

Oral presentation

[1A13-15] Nuclide Adsorption and Separation 3

Wed. Sep 7, 2022 4:40 PM - 5:30 PM Room A (E1 Bildg.1F No.10)

Chair:Youko Takahatake(JAEA)

4:40 PM - 4:55 PM

[1A13] Examination for the effect of changes in the particle size of the extractant impregnated adsorbent using the extraction chromatography on the separation behavior

*Kenta Katsuki¹, Keisuke Masumura¹, Tsuyoshi Arai¹ (1. Shibaura Inst. of Tech.)

4:55 PM - 5:10 PM

[1A14] Compariso of mass balance of volume reduction process for fly ash generated in thermal treatment of radioactively contaminated off-site incineration residue

*Kenichi Arima¹, Masahiro Osako¹, shunji Oda², Hisao Tohma², Keisuke Imai² (1. National Institute of Environmental Studies, 2. Japan Environmental Storage & Safety Corporation)

5:10 PM - 5:25 PM

[1A15] Adsorption ability of metal ions for Na-P1 type zeolite and its immobilization using the heat-treatment for the purpose of decontamination of radionuclides

*Ami Takahashi¹, Yoshiteru Itagaki¹, Hiromichi Aono¹ (1. Ehime Univercity)

Time reserved for Chair （5:25 PM - 5:30 PM）

Oral presentation

[2A01-05] Vitrification 2

Thu. Sep 8, 2022 9:30 AM - 10:55 AM Room A (E1 Bildg.1F No.10)

Chair:Hayato Koyama(JAEA)

9:30 AM - 9:45 AM

[2A01] Basic research programs of vitrification technology for waste volume reduction

(100) Effects of MA separation and waste loading of vitrified waste from spent MOX fuel for reduction of repository footprint

*Ryo Hamada¹, Tomofumi Sakuragi¹, Hidekazu Asano¹, Toshiro Oniki², Midori Uchiyama² (1. RWMC, 2. IHI)

9:45 AM - 10:00 AM

[2A02] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(101) Research report of development of glass matrix in 2021

*Ryo Souma¹, Kohei Oowaku¹, Takeshi Tsukada¹, Norio Kanehira¹, Toru Sugawara², Sohei Sukenaga³, Hiroyuki Shibata³, Tetsuji Yano⁴ (1. JNFL, 2. Akita Univ., 3. Tohoku Univ., 4. Tokyo Tech)

10:00 AM - 10:15 AM

[2A03] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(102) Micro XAFS analysis of molybdate aggregated in simulated waste glass

*Yoshihiro Okamoto¹, Takayuki Nagai¹, Seiichi Sato², Takehiko Inose², Kiyoshi Hatakeyama³, Hajime Tanida¹ (1. JAEA, 2. Inspection Development, 3. E&E)

10:15 AM - 10:30 AM

[2A04] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(103) Stabilization of vitrification process by improvement of frit material

*Kazuyoshi Uruga¹, Tsuyoshi Usami¹ (1. CRIEPI)

10:30 AM - 10:45 AM

[2A05] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(104) Sedimentation of platinum group elements in waste glass

*Usami Tsuyoshi¹, Uruga Kazuyoshi¹ (1. CRIEPI)

Time reserved for Chair （10:45 AM - 10:55 AM）

Oral presentation

[2A06-09] Nuclide Adsorption and Separation 4

Thu. Sep 8, 2022 10:55 AM - 12:00 PM Room A (E1 Bildg.1F No.10)

Chair:Masahiko Nakase(Tokyo Tech)

10:55 AM - 11:10 AM

[2A06] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(105)Improved TEHDGA column flow for MA + Ln co-recovery

*Kenta Ishizawa¹, Tsuyoshi Arai¹, Sou Watanabe², Yuichi Sano², Masayuki Takeuchi² (1. Shibaura Inst. of Tech., 2. JAEA)

11:10 AM - 11:25 AM

[2A07] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(106) Development of HONTA column flow for MA / Ln separation

*Keisuke Masumura¹, Tadashi Akuzawa², Tsuyoshi Arai¹, Sou Watanabe², Yuichi Sano², Masayuki Takeuchi² (1. Shibaura Inst. of Tech., 2. JAEA)

11:25 AM - 11:40 AM

[2A08] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(107)Performance evaluation of MA recovery flowsheet using Am

*Masahiko Kubota¹, Seong-Yun Kim¹, Hao Wu¹, Sou Watanabe², Yuichi Sano², Masayuki Takeuchi² (1. Tohoku Univ., 2. JAEA)

11:40 AM - 11:55 AM

[2A09] Basic Research Programs of Vitrification Technology for Waste Volume Reduction

(108) direct and indirect effect of gamma-irradiation on adsorbent for extraction chromatography

*Yasunori Miyazaki¹, Yuichi Sano¹, Nobuo Okamura¹, Masayuki Watanabe¹ (1. Japan Atomic Energy Agency)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[2A10-13] Stabilization and Immobilization 1

Thu. Sep 8, 2022 2:45 PM - 3:50 PM Room A (E1 Bildg.1F No.10)

Chair:Yoshihiro Okamoto(JAEA)

2:45 PM - 3:00 PM

[2A10] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(12) Solidification of FP elements in apatite ceramics

*Kenji Takeshita¹, Masahiko Nakase¹, Miki Harigai¹, Takatoshi Hijikata², Shun Kanagawa², Yoshikazu Koma³ (1. Tokyo Institute of Technology, 2. CRIEPI, 3. JAEA)

3:00 PM - 3:15 PM

[2A11] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(13) Development of solidification process of phosphate compounds from ALPS sediment

*Takatoshi Hijikata¹, Shun Kanagawa¹, Masahiko Nakase², Kazuo Utsumi², Kenji Takeshita² (1. CRIEPI, 2. Tokyo Tech)

3:15 PM - 3:30 PM

[2A12] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(14) Process verification test of solidification process of phosphate compounds from ALPS sediment

*Shun Kanagawa¹, Takatoshi Hijikata¹, Masahiko Nakase², Kazuo Utsumi², Kenji Takeshita² (1. CRIEPI, 2. Tokyo Tech)

3:30 PM - 3:45 PM

[2A13] Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

(15) Characteristics of hydrogen gas generation in solidified phosphate compounds from ALPS sediment

*Kato Jun¹, KAKUDA Ayaka¹, OSUGI Takeshi¹, KUROKI Ryoichiro¹, KOMA Yoshikazu¹, NAKASE Masahiko², UTSUMI Kazuo², TAKESHITA Kenji², KANAGAWA Shun^2,3, HIJIKATA Takatoshi³ (1. JAEA, 2. Tokyo Tech, 3. CRIEPI)

Time reserved for Chair （3:45 PM - 3:50 PM）

Oral presentation

[2A14-17] Stabilization and Immobilization 2

Thu. Sep 8, 2022 3:50 PM - 4:55 PM Room A (E1 Bildg.1F No.10)

Chair:Usami Tsuyoshi(CRIEPI)

3:50 PM - 4:05 PM

[2A14] Factors derived from metakaolin that cause changes in physical properties of alkali-activated materials

*Yoshihisa Hiraki¹, Ayaka Kakuda¹, Toshimitsu Saito¹, Tomoyuki Sone¹, Yogarajah Elakneswaran², Tsutomu Sato², Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. JAEA, 2. Hokkaido Univ.)

4:05 PM - 4:20 PM

[2A15] Study of low temperature solidification
of radioactive waste liquid by freeze drying method

*AKIHIKO KAJINAMI¹, SOU WATANABE² (1. Faculty of Engineering, Kobe University, 2. Japan Atomic Energy Agency)

4:20 PM - 4:35 PM

[2A16] Comparing the Chemical Characteristics of Geopolymers Formed Using Two Different Metakaolin Products

*Mika Yamada¹, Guodong Cai¹, Hideo Komine¹ (1. Waseda University)

4:35 PM - 4:50 PM

[2A17] A geopolymer for solidification of radioactive waste

(10) Void structure and sorption partition coefficient of geopolymers after accelerated deterioration

*Eiki ADACHI¹, Nobuyuki SEKINE¹, Marcela Blazsekova², Maros Juraska², Milena Prazska² (1. Fuji electric, 2. Jacobs Slovakia)

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

Oral presentation

[2A18-21] Waste Management

Thu. Sep 8, 2022 4:55 PM - 6:00 PM Room A (E1 Bildg.1F No.10)

Chair:Takatoshi Hijikata(CRIEPI)

4:55 PM - 5:10 PM

[2A18] Direct energy conversion using Ni/SiC Schottky junction in ²³⁷Np and ²⁴¹Am gamma ray regions: Interfacial effect

Tatsuo Fukuda¹, Masaaki Kobata¹, Takahisa Shobu¹, *Kenji Yoshii¹, Junichiro Kamiya¹, Yosuke Iwamoto¹, Takahiro Makino², Yuichi Yamazaki², Takeshi Ohshima², Yasuhiro Shirai³ (1. JAEA, 2. QST, 3. NIMS)

5:10 PM - 5:25 PM

[2A19] Development of steam reforming system for treatment of difficult-to-treat organic liquid wastes

(1)Progress of technology development for fluorine oil treatment with steam reforming system

*Mitsuhiro Ohwada¹, Hayato Koyama¹, Jun Kijima¹, Atsuhiro Shibata¹ (1. JAEA)

5:25 PM - 5:40 PM

[2A20] Development of steam reforming system for treatment of difficult-to-treat organic liquid wastes

(2)Applicability of a repair method for refractory materials treating inside of main reactor in steam reforming system

*Jun Kijima¹, Hayato Koyama¹, Mitsuhiro Ohwada¹, Atsuhiro Shibata¹ (1. JAEA)

5:40 PM - 5:55 PM

[2A21] Study on evaluation method of gamma-ray skyshine radiation dose rate during storage of radioactive waste by PHITS

*KAZUKI ASAKURA¹, YUSUKE SHIMOMURA¹ (1. JAEA)

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

Oral presentation

[3A01-05] Stabilization and Immobilization 3

Fri. Sep 9, 2022 9:30 AM - 10:55 AM Room A (E1 Bildg.1F No.10)

Chair:Ryosuke Maki(Okayama Univ. of Science)

9:30 AM - 9:45 AM

[3A01] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(28) Characteristic evaluation of simulated slurry cement solidified body added chemical admixture

*Norihisa Osawa¹, Yoshihisa Kaneda¹, Kazuki Matsuzawa², Michio Kikuchi², Takeshi Yamamoto², Ayaka Kakuda³, Tomoyuki Sone³, Takeshi Osugi³, Ryoichiro Kuroki³ (1. Taiheiyo Consultant, 2. CRIEPI, 3. IRID/JAEA)

9:45 AM - 10:00 AM

[3A02] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(29) Characteristic evaluation of simulated slurry alkali-activated material solidified body added chemical admixture

*Kazuki Matsuzawa¹, Michio Kikuchi¹, Takeshi Yamamoto¹, Norihisa Osawa², Ryo Sakamoto², Yoshihisa Kaneda², Ayaka Kakuda^3,4, Tomoyuki Sone^3,4, Takeshi Osugi^3,4, Ryoichiro Kuroki^3,4 (1. CRIEPI, 2. Taiheiyo Consultant, 3. IRID, 4. JAEA)

10:00 AM - 10:15 AM

[3A03] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(30) Evaluation of radiation effects on solidified products containing chemical admixtures

*Ayaka Kakuda¹, Masahiro Namiki^1,4, Kouiti Tabata¹, Norihisa Osawa², Yoshihisa Kaneda², Michio Kikuchi³, Takeshi Yamamoto³, Tomoyuki Sone¹, Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. IRID/JAEA, 2. Taiheiyo Consultant, 3. CRIEPI, 4. present: Inspection Development)

10:15 AM - 10:30 AM

[3A04] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(31) Investigation of calorific value range from thermography for cementation of contaminated water management waste

*Takumi Taniguchi¹, Masahiro Namiki^1,2, Koichi Tabata¹, Ayaka Kakuda¹, Tomoyuki Sone¹, Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. IRID/JAEA, 2. Inspection Development)

10:30 AM - 10:45 AM

[3A05] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(32) Investigation of downsizing method by using centrifuge tube for screening of solidifiable contaminated water management waste

*Koichi Tabata¹, Masahiro Namiki³, Osawa Norihisa², Ryo Sakamoto², Yoshihisa Kaneda², Ayaka Kakuda¹, Tomoyuki Sone¹, Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. IRID/JAEA, 2. Taiheiyo Consultant, 3. Inspection Development)

Time reserved for Chair （10:45 AM - 10:55 AM）

Oral presentation

[3A06-09] Stabilization and Immobilization 4

Fri. Sep 9, 2022 10:55 AM - 12:00 PM Room A (E1 Bildg.1F No.10)

Chair:Tomofumi Sakuragi(RWMC)

10:55 AM - 11:10 AM

[3A06] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(33) Effect of storage condition on alteration behavior of solidified body

*Junya Sato¹, Takumi Taniguchi¹, Kazuki Matsuzawa², Michio Kikuchi², Takeshi Yamamoto², Ayaka Kakuda¹, Tomoyuki Sone¹, Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. JAEA, 2. CRIEPI)

11:10 AM - 11:25 AM

[3A07] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(34) Evaluation of heat generation on square containers in multiple placement state

*Yuta Takahashi¹, Mayu Enomoto¹, Ayaka Kakuda¹, Tomoyuki Sone¹, Takeshi Osugi¹, Ryoichiro Kuroki¹ (1. IRID/JAEA)

11:25 AM - 11:40 AM

[3A08] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(35) Evaluation of long-term alteration of cement or Alkali Activated Material solidified body promoted by heating

*Ryo Sakamoto¹, Yutaro Kobayashi¹, Kazuko Haga¹, Ayaka Kakuda^2,3, Tomoyuki Sone^2,3, Takeshi Osugi^2,3, Ryoichiro Kuroki^2,3 (1. Taiheiyo Consultant, 2. IRID, 3. JAEA)

11:40 AM - 11:55 AM

[3A09] Research and development on preceding processing methods for contaminated water management waste at Fukushima Daiichi Nuclear Power Station

(36) Quantitative evaluation of volatilization-reduction measures in high-temperature treatment

Kazuyoshi URUGA¹, *Shizue FURUKAWA¹, Tadafumi KOYAMA¹, Ayaka KAKUDA², Tomoyuki SONE², Takeshi OSUGI², Ryoichiro KUROKI² (1. CRIEPI, 2. IRID/JAEA)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[3A10-14] Stabilization and Immobilization 5

Fri. Sep 9, 2022 2:45 PM - 4:10 PM Room A (E1 Bildg.1F No.10)

Chair:Junya Sato(JAEA)

2:45 PM - 3:00 PM

[3A10] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(1)Overview of the project

*Masahiko Nakase¹, Miki Harigai¹, Shinta Watanabe¹, Ryosuke Maki², Hidetoshi Kikunaga³, Tohru Kobayashi⁴, Tomofumi Sakuragi⁵, Ryo Hamada⁵, Hidekazu Asano⁵ (1. Tokyo Institute of Technology, 2. Okayama University of Science, 3. Tohoku University, 4. Japan Atomic Energy Agency, 5. Radioactive Waste Management Funding and Research Center)

3:00 PM - 3:15 PM

[3A11] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(2) The composite wasteform by spark plasma sintering (SPS) and its characterization

*Ryosuke Maki¹, Masahiko Nakase², Miki Harigai², Shinta Watanabe², Hidetoshi Kikunaga³, Tohru Kobayashi⁴, Tomofumi Sakuragi⁵, Ryo Hamada⁵, Hidekazu Asano⁵ (1. Okayama University of Science, 2. Tokyo Institute of Technology, 3. Tohoku University, 4. Japan Atomic Energy Agency, 5. Radioactive Waste Management Funding and Research Center)

3:15 PM - 3:30 PM

[3A12] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(3) Composite waste form to immobilize iodine with metal matrix by hot isostatic pressing

*Tomofumi Sakuragi¹, Ryo Hamada¹, Hidekazu Asano¹, Masahiko Nakase², Miki Harigai², Shinta Watanabe², Ryosuke Maki³, Hidetoshi Kikunaga⁴, Tohru Kobayashi⁵ (1. RWMC, 2. Tokyo Tech, 3. Okayama University of Science, 4. Tohoku Univ., 5. JAEA)

3:30 PM - 3:45 PM

[3A13] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(4)Theoretical Analysis for Electronic and Structural Properties of Hybrid-waste-solidification Materials

*Shinta Watanabe¹, Miki Harigai¹, Masahiko Nakase¹, Ryosuke Maki², Hidetoshi Kikunaga³, Tohru Kobayashi⁴, Tomofumi Sakuragi⁵, Ryo Hamada⁵, Hidekazu Asano⁵ (1. Tokyo Tech, 2. Okayama Univ. of Sci., 3. Tohoku Univ., 4. JAEA, 5. RWMC)

3:45 PM - 4:00 PM

[3A14] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(5) Preliminary study on disposal concept and safety assessment

*Hidekazu Asano¹, Tomofumi Sakuragi¹, Ryo Hamada¹, Masahiko Nakase², Miki Harigai², Shinta Watanabe², Ryosuke Maki³, Hidetoshi Kikunaga⁴, Tohru Kobayashi⁵ (1. RWMC, 2. Tokyo Tech, 3. OUS, 4. Tohoku Univ., 5. JAEA)

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

Oral presentation

[1B01-05] Vitrification 1

Wed. Sep 7, 2022 10:30 AM - 11:55 AM Room B (E1 Bildg.2F No.21)

Chair:Kazuyoshi Uruga(CRIEPI)

10:30 AM - 10:45 AM

[1B01] Development of Simulation Model for Cold-cap of TVF Glass Melter

*Yoshimitsu Asahi¹, Akira Kodaka¹ (1. JAEA)

10:45 AM - 11:00 AM

[1B02] Evaluation of nitric acid solubility of molybdenum-containing platinum group alloys

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

11:00 AM - 11:15 AM

[1B03] Local structural change of noble metal alloy containing molybdenum by heat treatment

Koki Sakashita¹, Seishiro Tanaka¹, *Haruaki Matsuura¹, Isamu Sato¹, Haruka Tada² (1. TCU, 2. IHI)

11:15 AM - 11:30 AM

[1B04] Study on YP formation mechanisms by using zirconium molybdate as a starting material

*Haruya Koshino¹, Daisuke Akiyama¹, Takayuki Nagai², Yoshihiro Okamoto², Akira Kirishima¹ (1. Tohoku Univ., 2. JAEA)

11:30 AM - 11:45 AM

[1B05] Crystallization of molybdenum phase from simulated high-level waste glass under slow cooling

*Toru Sugawara¹, Toshiaki Ohira¹, Ayaka Sekine^1,2, Maki Adachi^1,2, Hitomi Sato¹ (1. Akita University, 2. Japan Nuclear Fuel Limited)

Time reserved for Chair （11:45 AM - 11:55 AM）

Sessions

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

[1A01-05] Waste at Fukushima Daiichi NPS

(16) Practical grouping of radioelements and wastes in the modelling estimation method

(7) Fluorination Experiment with Simulated Waste (Part 3)

(8) Preparation and Analysis of the Simulated MCCI Products by Light-concentrating Heating under Temperature Gradient

[1A06-08] Nuclide Adsorption and Separation 1

(1) Selection of some uranium recovery methods

(2) Comparison study of uranyl nitrate separation methods by monoamide extractant

(3) Evaluation of several extractants on cerium (IV) nitrate separation using thermoresponsive polymer

[1A09-12] Nuclide Adsorption and Separation 2

[1A13-15] Nuclide Adsorption and Separation 3

[2A01-05] Vitrification 2

(100) Effects of MA separation and waste loading of vitrified waste from spent MOX fuel for reduction of repository footprint

(101) Research report of development of glass matrix in 2021

(102) Micro XAFS analysis of molybdate aggregated in simulated waste glass

(103) Stabilization of vitrification process by improvement of frit material

(104) Sedimentation of platinum group elements in waste glass

[2A06-09] Nuclide Adsorption and Separation 4

(105)Improved TEHDGA column flow for MA + Ln co-recovery

(106) Development of HONTA column flow for MA / Ln separation

(107)Performance evaluation of MA recovery flowsheet using Am

(108) direct and indirect effect of gamma-irradiation on adsorbent for extraction chromatography

[2A10-13] Stabilization and Immobilization 1

(12) Solidification of FP elements in apatite ceramics

(13) Development of solidification process of phosphate compounds from ALPS sediment

(14) Process verification test of solidification process of phosphate compounds from ALPS sediment

(15) Characteristics of hydrogen gas generation in solidified phosphate compounds from ALPS sediment

[2A14-17] Stabilization and Immobilization 2

(10) Void structure and sorption partition coefficient of geopolymers after accelerated deterioration

[2A18-21] Waste Management

(1)Progress of technology development for fluorine oil treatment with steam reforming system

(2)Applicability of a repair method for refractory materials treating inside of main reactor in steam reforming system

[3A01-05] Stabilization and Immobilization 3

(28) Characteristic evaluation of simulated slurry cement solidified body added chemical admixture

(29) Characteristic evaluation of simulated slurry alkali-activated material solidified body added chemical admixture

(30) Evaluation of radiation effects on solidified products containing chemical admixtures

(31) Investigation of calorific value range from thermography for cementation of contaminated water management waste

(32) Investigation of downsizing method by using centrifuge tube for screening of solidifiable contaminated water management waste

[3A06-09] Stabilization and Immobilization 4

(33) Effect of storage condition on alteration behavior of solidified body

(34) Evaluation of heat generation on square containers in multiple placement state

(35) Evaluation of long-term alteration of cement or Alkali Activated Material solidified body promoted by heating

(36) Quantitative evaluation of volatilization-reduction measures in high-temperature treatment

[3A10-14] Stabilization and Immobilization 5

(1)Overview of the project

(2) The composite wasteform by spark plasma sintering (SPS) and its characterization

(3) Composite waste form to immobilize iodine with metal matrix by hot isostatic pressing

(4)Theoretical Analysis for Electronic and Structural Properties of Hybrid-waste-solidification Materials

(5) Preliminary study on disposal concept and safety assessment

[1B01-05] Vitrification 1

Authentication