Oral presentation

[1H08-13] Performance Assessment and Scenario

Wed. Sep 13, 2017 2:45 PM - 4:20 PM Room H (C212 - C Block)

Chair:Tamotsu Kozaki (Hokkaido Univ.)

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2:45 PM - 3:00 PM

[1H08] Geosphere Stability Project

(1)Analysis of uncertainties included in development of Geological-Evolutionary Models (GEMs)

*Toshiyuki Matsuoka¹, Hironori Onoe¹, Tetsuya Komatsu¹, Ken-ichi Yasue², Teruki Iwatsuki¹, Ryuji Takeuchi¹, Tomoko Kato¹, Eiji Sasao¹ (1. JAEA, 2. JAEA (pr.:AIT))

3:00 PM - 3:15 PM

[1H09] Geosphere Stability Project

(2)Analysis on effects of uncertainties for evaluation of long-term variability of groundwater flow conditions

*Hironori Onoe¹, Toshiyuki Matsuoka¹, Tetsuya Komatsu¹, Ken-ichi Yasue², Teruki Iwatsuki¹, Ryuji Takeuchi¹, Tomoko Kato¹, Eiji Sasao¹ (1. JAEA, 2. JAEA (Pr.: AIT))

3:15 PM - 3:30 PM

[1H10] Advance of biosphere assessment method and setting of transfer processes model by considering near-surface hydrological feature.

*Sanae Shibutani¹, Yukiko Fukaya², Takeshi Sugiyama², Kyoko Ichikawa² (1. Nuclear waste management organization of Japan, 2. JAPAN NUS CO.,LTD.)

3:30 PM - 3:45 PM

[1H11] Evaluation for Influence of Human Intrusion on Geological Disposal System

Groundwater Flow Simulation for Borehole Excavation

*Shizuka Takai¹, Yuki Nishimura¹, Taro Shimada¹, Hideo Kimura¹, Seiji Takeda¹ (1. Japana Atomic Energy Agency)

3:45 PM - 4:00 PM

[1H12] Applicability of the optimization method for radioactive waste disposal based on probabilistic approach

*Ryo Nakabayashi¹, Daisuke Sugiyama¹ (1. Central Research Institute of Electric Power Industry)

4:00 PM - 4:15 PM

[1H13] Effects of Heat Generation of High-Loaded Vitrified Waste on Design of Near-Field of Geological Disposal Facility

*Kota Kawai¹, Kenji Takeshita¹ (1. Tokyo Institute of Technology, Laboratory for Advanced Nuclear Energy)

Time reserved for Chair （4:15 PM - 4:20 PM）

Oral presentation

[1H14-17] Solutes Transport

Wed. Sep 13, 2017 4:20 PM - 5:25 PM Room H (C212 - C Block)

Chair:Hiromitsu Saegusa (NUMO)

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4:20 PM - 4:35 PM

[1H14] Modeling of solutes transport at the Horonobe URL

(1)In-situ tracer tests for fractures and rock matrices in mudstone

*Masaki Takeda¹, Hirokazu Ohno¹, Eiichi Ishii¹, Yukio Tachi¹ (1. Japan Atomic Energy Agency)

4:35 PM - 4:50 PM

[1H15] Modeling of solutes transport at the Horonobe URL

(2)Characterization of solutes transport in fractures based on data from in-situ tracer tests

*Hirokazu Ohno¹, Masaki Takeda¹, Eiichi Ishii¹, Yukio Tachi¹ (1. JAEA)

4:50 PM - 5:05 PM

[1H16] Modeling of solutes transport at the Horonobe URL

(3)In-situ tracer tests in the rock matrix

*Tsuyoshi Ito¹, Yukio Tachi¹, Kazuaki Nemoto¹, Tomofumi Sato¹, Masaki Takeda¹, Hirokazu Ohno¹ (1. Japan Atomic Energy Agency)

5:05 PM - 5:20 PM

[1H17] Geochemical condition and solutes transport property around a closure tunnel

*Teruki Iwatsuki¹, Kazuki Hayashida¹, Hiroaki Murakami¹, Yusuke Watanabe¹ (1. JAEA)

Time reserved for Chair （5:20 PM - 5:25 PM）

Oral presentation

[1H18-20] Alumina Solidified Body and Vitrified Waste

Wed. Sep 13, 2017 5:25 PM - 6:15 PM Room H (C212 - C Block)

Chair:Ryo Nakabayashi (CRIEPI)

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5:25 PM - 5:40 PM

[1H18] Effect of addition of alumina on iodine immobilization of alumina solidified body

*Kaoru Masuda¹, Shin-ya Okamoto¹, Hiroshi Murakami¹, Osamu Kato², Satoshi Yoshida², Yaohiro Inagaki³, Tomofumi Sakuragi⁴ (1. Kobelco Research Inst., 2. Kobe Steel, 3. Kyushu University, 4. RWMC)

5:40 PM - 5:55 PM

[1H19] Effects of Magnesium ion on Dissolution of Nuclear Waste Glass

*Hajime Iwata¹, Nobuyuki Sekine², Seiichiro Mitsui¹ (1. Japan Atomic Energy Agency, 2. NESI)

5:55 PM - 6:10 PM

[1H20] Dissolution Behavior of BPI Glass under Geological Disposal Conditions

*Atsushi Mukunoki¹, Takahiro Kikuchi¹, Tamotsu Chiba¹, sakuragi Tomofumi², Tsutomu Sato³, Toshihiro Kogure⁴ (1. JGC Corporation, 2. Radioactive Waste Management Funding and Research Center, 3. Hokkaido University, 4. The University of Tokyo)

Time reserved for Chair （6:10 PM - 6:15 PM）

Oral presentation

[2H01-03] Nitrate and Nitrate Ion

Thu. Sep 14, 2017 9:30 AM - 10:20 AM Room H (C212 - C Block)

Chair:Kiyoshi Fujisaki (NUMO)

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9:30 AM - 9:45 AM

[2H01] Numerical simulation of nitrate evolution in nitrate polluted groundwater using the model of nitrate evolution (2).

*Tooru Abe¹, Fumio Hirano², Morihiro Mihara², Akira Honda² (1. J-CAL, 2. JAEA)

9:45 AM - 10:00 AM

[2H02] A study on the safety of geological disposal of nitrate-containing waste (part 2)

(1)The exothermic measurement of the simulated waste and modeling heat flux

*Keiji Hara¹, Kazutoshi Hasegawa¹, Osamu Tochiyama¹, Natsue Adachi¹, Akira Kirishima², Morihiro Mihara³ (1. Nuclear Safety Research Association, 2. Tohoku Univ., 3. Japan Atomic Energy Agency)

10:00 AM - 10:15 AM

[2H03] A study on the safety of geological disposal of nitrate-containing waste (part 2)

(2)Simulation study on the possibility of thermal reaction runaway after disposal

*Kosuke Nonaka¹, Fumio Hirano², Morihiro Mihara², Keiji Hara³, Osamu Tochiyama³ (1. Japan Nuclear Fuel Chemical Analysis, 2. Japan Atomic Energy Agency, 3. Nuclear Safety Research Association)

Time reserved for Chair （10:15 AM - 10:20 AM）

Oral presentation

[2H04-09] Cement

Thu. Sep 14, 2017 10:20 AM - 12:00 PM Room H (C212 - C Block)

Chair:Hitoshi Owada (RWMC)

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10:20 AM - 10:35 AM

[2H04] In-situ experiment project on the chemical interaction among barrier materials

M-S-H precipitation by the reaction between sedimentary rock and alkali leachate in paleoseawater environment

*Satoru Miyoshi¹, Yukinobu Kimura¹, Urs Maeder², Veerle Cloet³ (1. Obayashi Corporation, 2. University of Bern, 3. NAGRA)

10:35 AM - 10:50 AM

[2H05] Study of the effects on surrounding rock and groundwater from shotcrete using low alkaline cement in Horonobe URL

*Masashi Nakayama¹, Reiko Okamoto², Mitsuyasu Shirase² (1. JAEA, 2. TAISEI CORPORATION)

10:50 AM - 11:05 AM

[2H06] Evaluation of deterioration of hardened cement paste by interaction with groundwater

*Masahito Shibata¹, Kazuko Haga¹, Hideyuki Hokora¹, tsuneki ichikawa² (1. Taiheiyo Consultant Co.,Ltd, 2. Hokkaido University)

11:05 AM - 11:20 AM

[2H07] Evaluation of decommissioning and waste management strategies for contaminated concrete structures

(1)Effects of microstructure on the diffusion behavior of Na⁺ions in hardened cement paste

*Kai Hashibe¹, Tamotsu Kozaki², Naoko Watanabe², Shingo Tanaka², Hiroaki Takiya³, Naoya Hara⁴ (1. Graduate School of Engineering Hokkaido University, 2. Faculty of Engineering Hokkaido University, 3. Japan Atomic Energy Agency, 4. Graduate School of Engineering, Tohoku University)

11:20 AM - 11:35 AM

[2H08] Effect of sodium on thaumasite formation

*Hideyuki Hokora¹, Masahito Shibata¹, Haruka Takahashi¹, Shoichi Ogawa¹, Kazuko Haga¹ (1. Taiheiyo Consultant Co., Ltd.)

11:35 AM - 11:50 AM

[2H09] Suppressing effect of fly ash on expansion of mortar due to delayed ettringite formation studied by solid-state NMR

*Sadayuki Watanabe¹, Toru Yoshino¹, Yuichiro Kawabata², Haruka Takahashi³, Shoichi Ogawa³ (1. TIRI, 2. PARI, 3. Taiheiyo Consultant Co., Ltd.)

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

Oral presentation

[2H10-14] Sorption Behavior

Thu. Sep 14, 2017 2:45 PM - 4:05 PM Room H (C212 - C Block)

Chair:Tsutomu Sato (Hokkaido Univ.)

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2:45 PM - 3:00 PM

[2H10] Pa Solution Chemistry Study for Uranium Waste Management

(2)A Study on Hydrolysis of Pa Using ²³³Pa Tracer

*Shinsuke Komori¹, Akira Kirishima¹, Daisuke Akiyama¹, Nobuaki Sato¹ (1. Tohoku Univ.)

3:00 PM - 3:15 PM

[2H11] Sorption of Europium to Biotite Flakes under the condition of saline water

*Tomoyuki Toyota¹, Yuichi Niibori¹, Taiji Chida¹ (1. TOHOKU University)

3:15 PM - 3:30 PM

[2H12] Effect of boric acid on radionuclides sorption on bentonite

*Takamitsu Ishidera¹, Yukio Tachi¹, Yosuke Akagi² (1. JAEA, 2. MMC)

3:30 PM - 3:45 PM

[2H13] Time dependence of sorption and desorption behavior of iodine on cementitious materilals.

*Naoki Yoshii¹, Naoyuki Tamura¹, Noriyuki Sasaki¹, Yosuke Akagi², Keiichi Tsujimoto², Kohei Yamaguchi² (1. JAPAN NUCLEAR FUEL LIMITED, 2. MITSUBISHI MATERIALS CORPORATION)

3:45 PM - 4:00 PM

[2H14] Study on sorption of alkali ions into the cementitious materials(2)

Effect of Al content in C-A-S-H

*Shuichi Harasawa¹, Kazuko Haga¹, Haruka Takahashi¹, Sadayuki Watanabe², Kazuo Yamada³ (1. Taiheiyo Consultant.co.Ltd., 2. Tokyo Metropolitan Industrial Research Institute, 3. National Institute For Enviromental Studies)

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

Oral presentation

[2H15-17] Diffusion Behavior

Thu. Sep 14, 2017 4:05 PM - 4:55 PM Room H (C212 - C Block)

Chair:Taiji Chida (Tohoku Univ.)

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4:05 PM - 4:20 PM

[2H15] Application of Stabilized Gold Nanoparticles in the Investigation of Transport in Natural Barriers

*Carlos Eduardo Ordonez¹, Shingo Tanaka², Naoko Watanabe², Tamotsu Kozaki² (1. Graduate School of Engineering Hokkaido University, 2. Faculty of Engineering Hokkaido University)

4:20 PM - 4:35 PM

[2H16] Diffusion behavior of sulfate ion in compacted bentonite

*Kenya Kakuta¹, Shingo Tanaka², Naoko Watanabe², Tamotsu Kozaki² (1. Graduate School of Engineering Hokkaido University, 2. Faculty of Engineering Hokkaido University)

4:35 PM - 4:50 PM

[2H17] Influence of carbonate to the diffusion of lanthanide elements in compacted bentonite

*Yuki Kakoi¹, Kazuyuki Fujii¹, Noriya Ookubo¹, Kazuya Idemitsu¹, Yaohiro Inagaki¹, Tatsumi Arima¹ (1. Kyushu Univ.)

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

Oral presentation

[2H18-23] Engineering

Thu. Sep 14, 2017 4:55 PM - 6:30 PM Room H (C212 - C Block)

Chair:Masakazu Chijimatsu (HAZAMA ANDO)

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4:55 PM - 5:10 PM

[2H18] Study of Production Techniques of Bentonite Mixed Soil

(1)Mixing test by test mixer

*YASUSHI SATO¹, TOSHIMITSU ONISHI¹ (1. JDC corporation)

5:10 PM - 5:25 PM

[2H19] Study of Production Techniques of Bentonite Mixed Soil

(2)Mixing test by real scale mixer

*Yoshiyuki Yamada¹, Yasushi Sato¹, Kazuhisa Kondo¹, Takahiro Suzuki¹, Yoshifumi Fujimoto¹ (1. JDC Corporation)

5:25 PM - 5:40 PM

[2H20] Filling performance of backfill material composed of crushed rock and bentonite pellet

*hitoshi nakashima¹, Akira Saito¹, Ryoji Yahagi¹, Satohito Toguri¹ (1. shimizu Corporation)

5:40 PM - 5:55 PM

[2H21] A Study on Evaluation of Elastic Properties in Unsaturated Compacted Bentonite by Ultrasonic Measurement

*Shun Kimura¹, Kazumi Kitayama¹, Hideharu Takahashi¹, Kazushi Kimoto², Katsuyuki Kawamura¹, Hiroshige Kikura¹ (1. Tokyo Tech., 2. Okayama Univ.)

5:55 PM - 6:10 PM

[2H22] Development of monitoring related technologies in geological disposal

Effect of concrete and iron on wireless power transfer

*Chiaki Nagai¹, Kenji Inukai¹, Tatsuya Tanaka¹, Masato Kobayashi², Hiromitsu Yamakawa², Akinori Hasui², Kazuhiro Tsubono², Takehiro Imura³, Yoichi Hori³ (1. Obayashi Corporation, 2. Radioactive Waste Management Funding and Research Center, 3. The University of Tokyo)

6:10 PM - 6:25 PM

[2H23] Study on Measuring Method of Mass of Scattering Objects during Falling Impact

*Atsushi Yoshida¹, Kosuke Namba¹ (1. Central Research Institute of Electric Power Industry)

Time reserved for Chair （6:25 PM - 6:30 PM）

Oral presentation

[3I01-05] Recovery of Cesium

Fri. Sep 15, 2017 10:35 AM - 12:00 PM Room I (C310 - C Block)

Chair:Daisuke Akiyama (Tohoku Univ.)

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10:35 AM - 10:50 AM

[3I01] Recovery of Cs from Contaminated Soil by Subcritical Water containing Metal Ions and Its Solidification using Inorganic Materials for Volume Reduction

(1)Outline of Research

*Kenji Takeshita¹, Xiangbiao Yin¹, Hideharu Takahashi¹, Yusuke Inaba¹, Kazuo Utsumi¹, Nobutake Horiuchi², Takahiro Chikazawa² (1. Tokyo Institute of Technology, 2. Mitsubishi Materials)

10:50 AM - 11:05 AM

[3I02] Recovery of Cs from Contaminated Soil by Subcritical Water containing Metal Ions and Its Solidification using Inorganic Materials for Volume Reduction

(2)Desorption of Cs from Contaminated Soil by High-speed Ion Exchange under Hydrothermal Condition

*Nobutake Horiuchi¹, Takahiro Chikazawa¹, Xiangbiao Yin², Hideharu Takahashi², Yusuke Inaba², Kazuo Utsumi², Kenji Takeshita² (1. Mitsubishi Materials, 2. Tokyo Institute of Technology)

11:05 AM - 11:20 AM

[3I03] Recovery of Cs from Contaminated Soil by Subcritical Water Containing Metal Ions and Its Solidification using Inorganic Materials for Volume Reduction

(3)Mechanism of Enhanced Cs Desorption from Clay Minerals under Hydrothermal Condition

*Xiangbiao Yin¹, Nobutake Horiuchi², Takahiro Chikazawa², Asumi Ochiai³, Satoshi Utsunomiya³, Hideharu Takahashi¹, Yusuke Inaba¹, Toshihiko Ohnuki¹, Kenji Takeshita¹ (1. Tokyo Institute of Technology, 2. Mitsubishi Materials Corporation, 3. Kyushu University)

11:20 AM - 11:35 AM

[3I04] Recovery of Cs from Contaminated Soil by Subcritical Water containing Metal Ions and Its Solidification using Inorganic Materials for Volume Reduction

(4)Selective Recovery of Cs in Subcritical Treated Water and Vitrification of Cs

*Hideharu Takahashi¹, Yusuke Inaba¹, Miki Harigai¹, Kazuo Utsumi¹, Kenji Takeshita¹, Nobutake Horiuchi², Takahiro Chikazawa², Junichi Munezawa³ (1. Tokyo Institute of Technology, 2. Mitsubishi Materials Corporation, 3. ETD)

11:35 AM - 11:50 AM

[3I05] Examination of the siloxane-bond technology to reduce Fukusima-Daiichi NPP environment risk

Decontamination effect confirmation experiment

*Yoko Iwamiya¹, Masayoshi Kawai^1,2 (1. Choetsu Glass Chemistry Research Co. Ltd., 2. High Energy Accelerator Research Organization)

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

Oral presentation

[3I06-09] Bentonite

Fri. Sep 15, 2017 2:45 PM - 3:50 PM Room I (C310 - C Block)

Chair:Hitoshi Nakashima (Shimizu)

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2:45 PM - 3:00 PM

[3I06] Study about the effect of the quality of Ca type bentonite to the performance of the low permeable barrier

*Masakazu Chijimatsu¹, Hikaru Oguri¹ (1. Hazama Ando Corporation)

3:00 PM - 3:15 PM

[3I07] Study about the factor which has an influence on a result of methylene blue adsorption test for bentonite

*Hikaru OGURI¹, masakazu chijimatsu¹ (1. Hazama Ando Corporation)

3:15 PM - 3:30 PM

[3I08] Evaluation of colloid filtering function by compacted bentonite: Application of dendrimer

*Takashi Endo¹, Takamitsu Ishidera¹, Motoki Terashima¹, Yukio Tachi¹ (1. JAEA)

3:30 PM - 3:45 PM

[3I09] Temperature dependencies of the deposition behavior of supersaturated silicic acid on illite, considering the alternation of backfill material.

*Shinya Oyama¹, Tsuyoshi Sasagawa¹, Taiji Chida¹, Yuichi Niibori¹ (1. Tohoku University, Graduate School of Engineering, Department of Quantum Science and Energy Engineering)

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

Oral presentation

[3I10-13] Corrosion and Gas

Fri. Sep 15, 2017 3:50 PM - 4:55 PM Room I (C310 - C Block)

Chair:Atsushi Mukunoki (JGC)

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3:50 PM - 4:05 PM

[3I10] Corrosion behavior on the carbon steel welded joint under simulated heterogeneously geological environment.

*Kazutoshi Yamzaki¹, Hajime Takao¹, Takahiro Kikuchi¹, Yoshiro Kuriki¹, Masahiro Kawakubo², Masato Kobayashi², Gen Nakayama³, Yumiko Iwata³, Yoshikatsu Tochigi³ (1. JGC Corporation, 2. RWMC, 3. IHI Corporation)

4:05 PM - 4:20 PM

[3I11] Activation energy of Zircaloy corrosion under disposal conditions

*Tomofumi Sakuragi¹, Osamu Kato², Satoshi Yoshida², Tsuyoshi Tateishi³ (1. RWMC, 2. Kobelco, 3. Kobelco Kaken)

4:20 PM - 4:35 PM

[3I12] Estimation of source term for spent fuel disposal

(3)Development of methodology on estimation of fission gas release ratios for Japanese spent fuels

*Masanobu Nagata¹, Kuniaki Akahori², Akira Kitamura¹, Yukio Tachi¹, Takahiro Chikazawa² (1. Japan Atomic Energy Agency, 2. Mitsubishi Materials Corporation)

4:35 PM - 4:50 PM

[3I13] Preliminary Evaluation on Migration of Gas Generated at Disposal of Fuel Debris

*Taro Shimada¹, Yuki Nishimura¹, Seiji Takeda¹ (1. JAEA)

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

Sessions

IV. Nuclear Fuel Cycle and Nuclear Materials » 405-2 Waste Disposal and Its Environmental Aspects

[1H08-13] Performance Assessment and Scenario

(1)Analysis of uncertainties included in development of Geological-Evolutionary Models (GEMs)

(2)Analysis on effects of uncertainties for evaluation of long-term variability of groundwater flow conditions

Groundwater Flow Simulation for Borehole Excavation

[1H14-17] Solutes Transport

(1)In-situ tracer tests for fractures and rock matrices in mudstone

(2)Characterization of solutes transport in fractures based on data from in-situ tracer tests

(3)In-situ tracer tests in the rock matrix

[1H18-20] Alumina Solidified Body and Vitrified Waste

[2H01-03] Nitrate and Nitrate Ion

(1)The exothermic measurement of the simulated waste and modeling heat flux

(2)Simulation study on the possibility of thermal reaction runaway after disposal

[2H04-09] Cement

M-S-H precipitation by the reaction between sedimentary rock and alkali leachate in paleoseawater environment

(1)Effects of microstructure on the diffusion behavior of Na+ ions in hardened cement paste

[2H10-14] Sorption Behavior

(2)A Study on Hydrolysis of Pa Using 233Pa Tracer

Effect of Al content in C-A-S-H

[2H15-17] Diffusion Behavior

[2H18-23] Engineering

(1)Mixing test by test mixer

(2)Mixing test by real scale mixer

Effect of concrete and iron on wireless power transfer

[3I01-05] Recovery of Cesium

(1)Outline of Research

(2)Desorption of Cs from Contaminated Soil by High-speed Ion Exchange under Hydrothermal Condition

(3)Mechanism of Enhanced Cs Desorption from Clay Minerals under Hydrothermal Condition

(4)Selective Recovery of Cs in Subcritical Treated Water and Vitrification of Cs

Decontamination effect confirmation experiment

[3I06-09] Bentonite

[3I10-13] Corrosion and Gas

(3)Development of methodology on estimation of fission gas release ratios for Japanese spent fuels

Authentication

(1)Effects of microstructure on the diffusion behavior of Na⁺ions in hardened cement paste

(2)A Study on Hydrolysis of Pa Using ²³³Pa Tracer