Oral presentation

[3J01-05] Waste

Fri. Mar 19, 2021 9:55 AM - 11:20 AM Room J (Zoom room 10)

Chair: Taiji Chida (Tohoku Univ.)

9:55 AM - 10:10 AM

[3J01] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(1)Environmental load and nuclear fuel cycle conditions in waste disposal

*Hidekazu Asano¹, Tomofumi Sakuragi¹, Ryo Hamada¹, Chi Young Han², Masahiko Nakase², Tatsuro Matsumura³, Go Chiba⁴, Hiroshi Sagara², Kenji Takeshita² (1. RWMC, 2. Tokyo Tech, 3. JAEA, 4. Hokkaido Univ)

10:10 AM - 10:25 AM

[3J02] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(2)Exposure dose evaluation in geological disposal for the derivation of environmental impact index

*Ryo Hamada¹, Tomofumi Sakuragi¹, Hidekazu Asano¹ (1. RWMC)

10:25 AM - 10:40 AM

[3J03] Study on Advanced Nuclear Energy System Based on the Environmental Impact of Radioactive Waste Disposal

(3)Applicability of NFCSS to Material Balance Evaluation of Nuclear Fuel Cycle

*Chi Young HAN¹, Hiroshi SAGARA¹, Hidekazu ASANO² (1. Tokyo Tech, 2. RWMC)

10:40 AM - 10:55 AM

[3J04] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(4)Simplification of MA separation process based on environmental load in waste disposal

*Tatsuro Matsumura¹, Yasuhiro Tsubata¹, Hidekazu Asano² (1. Japan Atomic Energy Agency, 2. RWMC)

10:55 AM - 11:10 AM

[3J05] Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal

(18)Effects of UO₂-MOX blended vitrified waste disposal on reduction of environmental impact

*Eriko Minari¹, Tomohiro Okamura¹, Masahiko Nakase¹, Tomofumi Sakuragi², Ryo Hamada², Hidekazu Asano^1,2, Kenji Takeshita¹ (1. Tokyo Tech, 2. RWMC)

Time reserved for Chair （11:10 AM - 11:20 AM）

Oral presentation

[3J06-07] Material

Fri. Mar 19, 2021 11:20 AM - 12:00 PM Room J (Zoom room 10)

Chair: Tatsuro Matsumura (JAEA)

11:20 AM - 11:35 AM

[3J06] Development of stable solidification process of radioactive Cesium from contaminated soil by functional porous silica glass and struvite

*Yuan Zhuofei¹, Nakase masahiko¹, Watanabe shinta¹, Harigai miki¹, Inaba yusuke¹, Takeshita kenji¹ (1. Tokyo Institute of Technology)

11:35 AM - 11:50 AM

[3J07] Effect of Dehydration Time on Pore Distribution of Metakaolin-based Geopolymer

*Yaru Yang¹, Thi Chau Duyen Le¹, Thi Mai Dung Do¹, Tadachika Nakayama¹, Suematsu Hisayuki¹ (1. Nagaoka University of Technology )

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

Oral presentation

[3J08-10] Natural Barrier

Fri. Mar 19, 2021 2:45 PM - 3:35 PM Room J (Zoom room 10)

Chair: Taishi Kobayashi (Kyoto Univ.)

2:45 PM - 3:00 PM

[3J08] Intrusion ratio of modern meteoric water into groundwater at Mizunami granite area deduced by I-129

*TOMOKO OHTA^1,2,3, Takuma Hasegawa¹, Shunichi Okamoto¹, Yusuke Watanbe⁴ (1. CRIEPI, 2. Nagaoka Univ. of Tech., 3. UTokyo, 4. JAEA)

3:00 PM - 3:15 PM

[3J09] Some experimental trials on changes of mass transfer and hydraulic conductivity porosity in porous media , considering a drying process before the closure of repository

*Koichi Hayashi¹, Yuichi Niibori¹, Taiji Chida¹ (1. Tohoku University)

3:15 PM - 3:30 PM

[3J10] New backbone definition for radionuclide transport simulation using discrete fracture network and prediction of breakthrough curves by machine learning

*Shunya Hattori¹, Takumi Saito¹ (1. UTokyo)

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

Oral presentation

[3J11-15] Migration/Sorption

Fri. Mar 19, 2021 3:35 PM - 5:00 PM Room J (Zoom room 10)

Chair: Hajime Takao (JGC)

3:35 PM - 3:50 PM

[3J11] Characterization of the solubility controlling solid phases of mixed lanthanide oxides (L₁,L₂,L_3,)₂O₃ (L₁,L₂,L₃= La,Nd,Eu,Tm)

*Mohammad Moniruzzaman¹, Taishi Kobayashi¹, Takayuki Sasaki¹ (1. Kyoto Univ.)

3:50 PM - 4:05 PM

[3J12] Determination of the sorption mechanism of Cs⁺ and Eu³⁺ to sodium activated metakaolin-based geopolymers

*ANIL CAN YILDIRIM¹, TAKUMI SAITO¹, NOBORU AOYAGI² (1. UTokyo, 2. JAEA)

4:05 PM - 4:20 PM

[3J13] Gamma-irradiation-induced molecular-weight-dependent distribution of humic acid complexed with metal ions

*Qi Zhao¹, Taishi Kobayashi¹, Takayuki Sasaki¹, Takeshi Saito² (1. Kyoto Univ., 2. KURNS)

4:20 PM - 4:35 PM

[3J14] Estimation of the interaction of Europium and Ca-Al-Si Hydrates in the co-presence condition of Cesium and Barium

*Jinsei Amakawa¹, Taiji Chida¹, Yuichi Niibori¹ (1. Tohoku University)

4:35 PM - 4:50 PM

[3J15] Evaluation of the interaction between deep groundwater natural organic matter and metal ions using fluorescence spectroscopy and multivariate analysis

*Shusaku Nishi¹, Takumi Saito¹ (1. The University of Tokyo)

Time reserved for Chair （4:50 PM - 5:00 PM）

Sessions

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

[3J01-05] Waste

[3J01] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(1)Environmental load and nuclear fuel cycle conditions in waste disposal

[3J02] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(2)Exposure dose evaluation in geological disposal for the derivation of environmental impact index

[3J03] Study on Advanced Nuclear Energy System Based on the Environmental Impact of Radioactive Waste Disposal

(3)Applicability of NFCSS to Material Balance Evaluation of Nuclear Fuel Cycle

[3J04] Study on advanced nuclear energy system based on the environmental impact of radioactive waste disposal

(4)Simplification of MA separation process based on environmental load in waste disposal

[3J05] Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal

(18)Effects of UO₂-MOX blended vitrified waste disposal on reduction of environmental impact

[3J06-07] Material

[3J06] Development of stable solidification process of radioactive Cesium from contaminated soil by functional porous silica glass and struvite

[3J07] Effect of Dehydration Time on Pore Distribution of Metakaolin-based Geopolymer

[3J08-10] Natural Barrier

[3J08] Intrusion ratio of modern meteoric water into groundwater at Mizunami granite area deduced by I-129

[3J09] Some experimental trials on changes of mass transfer and hydraulic conductivity porosity in porous media , considering a drying process before the closure of repository

[3J10] New backbone definition for radionuclide transport simulation using discrete fracture network and prediction of breakthrough curves by machine learning

[3J11-15] Migration/Sorption

[3J11] Characterization of the solubility controlling solid phases of mixed lanthanide oxides (L₁,L₂,L_3,)₂O₃ (L₁,L₂,L₃= La,Nd,Eu,Tm)

[3J12] Determination of the sorption mechanism of Cs⁺ and Eu³⁺ to sodium activated metakaolin-based geopolymers

[3J13] Gamma-irradiation-induced molecular-weight-dependent distribution of humic acid complexed with metal ions

[3J14] Estimation of the interaction of Europium and Ca-Al-Si Hydrates in the co-presence condition of Cesium and Barium

[3J15] Evaluation of the interaction between deep groundwater natural organic matter and metal ions using fluorescence spectroscopy and multivariate analysis

Authentication

Sessions

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

[3J01-05] Waste

(1)Environmental load and nuclear fuel cycle conditions in waste disposal

(2)Exposure dose evaluation in geological disposal for the derivation of environmental impact index

(3)Applicability of NFCSS to Material Balance Evaluation of Nuclear Fuel Cycle

(4)Simplification of MA separation process based on environmental load in waste disposal

(18)Effects of UO2-MOX blended vitrified waste disposal on reduction of environmental impact

[3J06-07] Material

[3J08-10] Natural Barrier

[3J11-15] Migration/Sorption

Authentication

(18)Effects of UO₂-MOX blended vitrified waste disposal on reduction of environmental impact