Oral presentation

[1C01-06] Waste

Wed. Sep 8, 2021 10:20 AM - 12:00 PM Room C

chair: Taiji Chida (Tohoku Univ.)

10:20 AM - 10:35 AM

[1C01] Dissolution behavior of iron uranium oxide

*Ryutaro Tonna¹, Taishi Kobayashi¹, Daisuke Akiyama², Akira Kirishima², Nobuaki Sato², Takayuki Sasaki¹ (1. KYOTO UNIVERSITY, 2. Tohoku University)

10:35 AM - 10:50 AM

[1C02] Dissolution behavior of CaUO₄ under reducing condition

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

10:50 AM - 11:05 AM

[1C03] Alteration of UO₂ studied by ultra-low temperature TRLFS

*Takumi Saito¹, Noboru Aoyagi², Huiyang Mei^1,2 (1. School of Engineering, The University of Tokyo, 2. Advanced Science Research Center, Japan Atomic Energy Agency)

11:05 AM - 11:20 AM

[1C04] Evaluation of the Amount of Infiltration and Leachate from Concrete Pit Facilities for Waste Generated from Research, Industrial and Medical

*Rina Ogawa¹, Hisakazu Nakata¹, Akihiro Sakai¹ (1. JAEA)

11:20 AM - 11:35 AM

[1C05] Effect of super-saturation on continuous removal of radioactive strontium from fresh water by co-crystallization with calcium carbonate

*Tsuneki Ichikawa^1,2, Kazuo Yamada² (1. Hokkaido University, 2. National Institute for Environmental Studies)

11:35 AM - 11:50 AM

[1C06] Preliminary analysis of long-term evolution for geological environment around drift in the Horonobe Underground Research Laboratory

*Mitsuo Gohke¹, Mitsunobu Okihara¹, Tsuneyuki Maemura², Ryo Yasuda², Hiroya Matsui³, Yusuke Ozaki³, Akihito Mochizuki³ (1. Shimizu, 2. Dia Consultants, 3. JAEA)

Time reserved for Chair （11:50 AM - 12:00 PM）

Oral presentation

[1C07-12] Migration & Sorption

Wed. Sep 8, 2021 2:45 PM - 4:25 PM Room C

chair: Haruo Sato (Okayama Univ.)

2:45 PM - 3:00 PM

[1C07] Evaluation of Deposition Behavior of Supersaturated Silicic Acid in the Presence of Ca and Mg Ions

*Non Shirasawa¹, Taiji Chida¹, Tsugumi Seki¹, Yuichi Niibori¹ (1. Tohoku Univ.)

3:00 PM - 3:15 PM

[1C08] Solubility of palladium in the presence of α-isosaccharinic acid (2)

*Hajime Iwata¹, Shingo Kimuro¹, Akira Kitamura¹, Shunsuke Miyabe², Mamiko Maeno², Takeru Tanaka², Manami Hieda² (1. Japan Atomic Energy Agency, 2. Kyudensangyo. Co., Inc.)

3:15 PM - 3:30 PM

[1C09] Evaluation of the interaction between deep groundwater natural organic matter and metal ions using fluorescence spectroscopy and multivariate analysis and arrangement of their origins

*Shusaku Nishi¹, Kazuya Miyakawa², Kanako Toda¹, Takumi Saito¹ (1. UTokyo, 2. JAEA)

3:30 PM - 3:45 PM

[1C10] Evaluation of long-term safety of geological disposal of high-level waste generated during reprocessing spent MOX-LWR fuels

*Eriko Minari¹, Satsuki Kabasawa², Morihiro Mihara², Hitoshi Makino², Masahiko Nakase¹, Hidekazu Asano¹, Kenji Takeshita¹ (1. Tokyo Tech, 2. JAEA)

3:45 PM - 4:00 PM

[1C11] Sorption study of U(IV)on montmorillonite in the presence of carbonate

*Motohide Tsuda¹, Taishi Kobayashi¹, Takayuki Sasaki¹, Takafumi Hamamoto², Keisuke Ishida² (1. Kyoto Univ., 2. NUMO)

4:00 PM - 4:15 PM

[1C12] Evaluation of Channel Formation and Migration Behavior of Cesium under an Unsaturated Condition

*Hirotaka Kawakami¹, Yuichi Niibori¹, Taiji Chida¹, Tsugumi Seki¹ (1. Tohoku University)

Time reserved for Chair （4:15 PM - 4:25 PM）

Oral presentation

[2C01-04] Material 1

Thu. Sep 9, 2021 9:30 AM - 10:40 AM Room C

chair: Takumi Saito (UTokyo)

9:30 AM - 9:45 AM

[2C01] Temperature dependence of metal ions eluted from metakaolin geopolymer mortar

*Hiroki Goda¹, Eiki Adachi², Hisashi Mikami², Isamu Kudo³, Shingo Koga¹, Koji Harada⁴ (1. Kyutech, 2. Fuji Electric, 3. ADVAN ENG., 4. Nishimatsu Construction)

9:45 AM - 10:00 AM

[2C02] Effects of exchangeable cations on diffusion behavior of sulfate ions in montmorillonite

*Sato Hiroto¹, Shinichiro Uematsu¹, Naoko Watanabe¹, Tamotsu Kozaki¹ (1. Hokkaido Univ.)

10:00 AM - 10:15 AM

[2C03] Evaluations of the Interaction between Europium and Calcium Silicate Hydrate with Magnesium as a Secondary Mineral

*Ryo Tahara¹, Taiji Chida¹, Tsugumi Seki¹, Yuichi Niibori¹ (1. Tohoku Univ.)

10:15 AM - 10:30 AM

[2C04] Development of geopolymer cured at ambient temperature for the containment of radioactive wastes

(3)Adsorption property affected by ingredient

*Hitoshi Nakashima¹, Norikazu Kinoshita¹, Yuya Yoda¹, Shunsuke Kiyomura¹, Motoyuki Asada¹, Yuki Sasaki¹, Kazutaka Torii¹, Keisuke Sueki² (1. Shimizu corporation, 2. University of Tsukuba)

Time reserved for Chair （10:30 AM - 10:40 AM）

Oral presentation

[2C05-09] Material 2

Thu. Sep 9, 2021 10:40 AM - 12:05 PM Room C

chair: Taishi Kobayashi (Kyoto Univ.)

10:40 AM - 10:55 AM

[2C05] Experiments of bentonite spraying method for the clay plug

(1)Investigation of sprayed bentonite properties

*Shun Kimura¹, Masaki Takeda¹, Takayuki Motoshima², Hanae Dan² (1. JAEA, 2. TAISEI)

10:55 AM - 11:10 AM

[2C06] Fundamental research on alternative clay materials used for backfill in geological disposal

*Takafumi Iwatani¹, Masahiro Kawakubo² (1. Nishimatsu construction, 2. Radioactive Waste Management Funding and Research Center)

11:10 AM - 11:25 AM

[2C07] Consideration based on Thermodynamic Theory on Effect of Temperature on Swelling Stress of Buffer Material in Geological Disposal

*Haruo Sato¹ (1. Okayama University)

11:25 AM - 11:40 AM

[2C08] Generation and migration of hydrogen gas in bentonite by using electrochemical method

*Yuya Nakasaki¹, Kazuya Idemitsu¹, Yaohiro Inagaki¹, Tatsumi Arima¹ (1. Kyushu Univ.)

11:40 AM - 11:55 AM

[2C09] Study on sealing performance cut off excavation damaged zone with clay-based materials

(4)Evaluation of permeability based on in situ experiment and groundwater flow analysis

*Hanae Dan¹, Takayuki Motosima¹, Shun Kimura², Masaki Takeda² (1. TAISEI, 2. JAEA)

Time reserved for Chair （11:55 AM - 12:05 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[1C01-06] Waste

[1C01] Dissolution behavior of iron uranium oxide

[1C02] Dissolution behavior of CaUO₄ under reducing condition

[1C03] Alteration of UO₂ studied by ultra-low temperature TRLFS

[1C04] Evaluation of the Amount of Infiltration and Leachate from Concrete Pit Facilities for Waste Generated from Research, Industrial and Medical

[1C05] Effect of super-saturation on continuous removal of radioactive strontium from fresh water by co-crystallization with calcium carbonate

[1C06] Preliminary analysis of long-term evolution for geological environment around drift in the Horonobe Underground Research Laboratory

[1C07-12] Migration & Sorption

[1C07] Evaluation of Deposition Behavior of Supersaturated Silicic Acid in the Presence of Ca and Mg Ions

[1C08] Solubility of palladium in the presence of α-isosaccharinic acid (2)

[1C09] Evaluation of the interaction between deep groundwater natural organic matter and metal ions using fluorescence spectroscopy and multivariate analysis and arrangement of their origins

[1C10] Evaluation of long-term safety of geological disposal of high-level waste generated during reprocessing spent MOX-LWR fuels

[1C11] Sorption study of U(IV)on montmorillonite in the presence of carbonate

[1C12] Evaluation of Channel Formation and Migration Behavior of Cesium under an Unsaturated Condition

[2C01-04] Material 1

[2C01] Temperature dependence of metal ions eluted from metakaolin geopolymer mortar

[2C02] Effects of exchangeable cations on diffusion behavior of sulfate ions in montmorillonite

[2C03] Evaluations of the Interaction between Europium and Calcium Silicate Hydrate with Magnesium as a Secondary Mineral

[2C04] Development of geopolymer cured at ambient temperature for the containment of radioactive wastes

(3)Adsorption property affected by ingredient

[2C05-09] Material 2

[2C05] Experiments of bentonite spraying method for the clay plug

(1)Investigation of sprayed bentonite properties

[2C06] Fundamental research on alternative clay materials used for backfill in geological disposal

[2C07] Consideration based on Thermodynamic Theory on Effect of Temperature on Swelling Stress of Buffer Material in Geological Disposal

[2C08] Generation and migration of hydrogen gas in bentonite by using electrochemical method

[2C09] Study on sealing performance cut off excavation damaged zone with clay-based materials

(4)Evaluation of permeability based on in situ experiment and groundwater flow analysis

Authentication