*Masatoshi Iizuka¹, Tsuyoshi Murakami¹, Yoshiharu Sakamura¹, Toshiyuki Nohira² (1. Central Research Institute of Electric Power Industry, 2. Kyoto University)

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

Oral presentation

[2I19-22] Aqueous Separation and Reprocessing

Thu. Sep 12, 2019 5:10 PM - 6:15 PM Room I (Common Education Bildg. 2F D21)

Chair:Daisuke Akiyama(Tohoku Univ.)

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5:10 PM - 5:25 PM

[2I19] Evaluation of DGA extractant impregnated adsorbent directed to establishment of MA separation sheet

*Yusuke Horiuchi¹, Tsuyoshi Arai¹, Sou Watanabe², Masayuki Takeuchi² (1. Shibaura Institute of Technology , 2. JAEA)

5:25 PM - 5:40 PM

[2I20] Development of a new extraction method for americium separation

*Hideya Suzuki¹, Yasutoshi Ban¹, Yasuhiro Tsubata¹, Shinobu Hotoku¹, Nao Tsutsui¹, Tatsuya Kurosawa¹, Mitsunobu Shibata¹, Tomohiro Kawasaki ¹, Tatsuro Matsumura¹ (1. Japan Atomic Energy Agency)

5:40 PM - 5:55 PM

[2I21] Adsorption separation of uranium and thorium by monoamide-immobilized hydrogel from nitric acid solution

*Masahiko Nakase¹, Tomoo Yamamura², Kenji Shirasaki³, Mitsuie Nagai³, Tohru Kobayashi⁴, Daiju Matsumura⁴, Yukako Aoyama¹, Sotaro tachioka¹, Kenji Takeshita¹ (1. Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, 2. Institute for Integrated Radiation and Nuclear Science, Kyoto University, 3. Laboratory of Alpha-Ray Emitters, Institute for Material Research, Tohoku University, 4. Material Sciences Research Center, Japan Atomic Energy Agency)

5:55 PM - 6:10 PM

[2I22] Feasibility study for LWR MOX spent fuel reprocessing using PUREX process

(1)Feasibility study on distribution process

*Takeshi Tsukada¹ (1. CRIEPI)

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

Oral presentation

[3I01-05] Low-radioactive Waste Treatment

Fri. Sep 13, 2019 9:30 AM - 10:55 AM Room I (Common Education Bildg. 2F D21)

Chair:Yoshiharu Sakamura(CRIEPI)

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9:30 AM - 9:45 AM

[3I01] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(21)Practical study on Cs and Sr adsorption process in LWTF.

*Yoshiyuki Ito¹, Ryotatsu Matsushima¹, Takano Masato¹, Tatsuya Suzuki², Shinsuke Miyabe³, Takashi Sakuma⁴ (1. JAEA, 2. Nagaoka Univ. of Tech., 3. Nippon Chemical Industrial Co.,LTD, 4. EBARA Corporation.)

9:45 AM - 10:00 AM

[3I02] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(22)Hydrogen generation evaluation of cement solidified by gamma irradiation

*Shoji Kataoka¹, Masato Takano¹, Fuminori Sato¹, Yasuo Saito¹ (1. JAEA)

10:00 AM - 10:15 AM

[3I03] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(23)Study on the effect of impurities present in waste liquid on cement solidification

*Ryotatsu Matsushima¹, Masato Takano¹, Daiki Atarashi², Yasuo Saito¹ (1. JAEA, 2. Shimane Univ.)

10:15 AM - 10:30 AM

[3I04] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(24)Study on Cement Based Encapsulation of Sodium Carbonate Liquid Waste at full scale ②

*kiyofumi takahashi¹, masato takano¹, fuminori sato¹, yasuo saito¹ (1. JAEA)

10:30 AM - 10:45 AM

[3I05] Development of treatment for low radioactive waste in Tokai Reprocessing Plant

(25)Estimation of causes of stress corrosion cracking in incinerators

*Katsuhiko Koshino¹, Masato Takano¹, Fuminori Sato¹, Yasuo Saito¹ (1. JAEA)

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

Oral presentation

[3I06-09] Evaporation and Dryness of Radioactive Solution 1

Fri. Sep 13, 2019 10:55 AM - 12:00 PM Room I (Common Education Bildg. 2F D21)

Chair:Masatoshi Iizuka(CRIEPI)

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10:55 AM - 11:10 AM

[3I06] Measures of evaporation to dryness for Rokkasho reprocessing plant

(1)Characteristics of evaporation to dryness

*Ryohei Okuda¹, Yusuke Akaishi¹, Shin Kawamura¹, Takatsugu Fuwa¹, Satoshi Segawa¹ (1. JAPAN NUCLEAR FUEL LIMITED)

11:10 AM - 11:25 AM

[3I07] Measures of evaporation to dryness for Rokkasho reprocessing plant

(2)Analysis of evaporation to dryness

*Yusuke Akaishi¹, Ryohei Okuda¹, Shin Kawamura¹, Takatugu Fuwa¹, Satoshi Segawa¹ (1. Japan Nuclear Fuel Limited)

11:25 AM - 11:40 AM

[3I08] Measures of evaporation to dryness for Rokkasho reprocessing plant

(3)Counter measures for evaporation to dryness

*Shin Kawamura¹, Yusuke Akaishi¹, Ryohei Okuda¹, Takatsugu Fuwa¹, Satoshi Segawa¹ (1. JAPAN NUCLEAR FUEL LIMITED)

11:40 AM - 11:55 AM

[3I09] Measures of evaporation to dryness for Rokkasho reprocessing plant

(4)Equipment design for evaporation to dryness

*Takatsugu Fuwa¹, Yusuke Akaishi¹, Ryohei Okuda¹, Shin Kawamura¹, Satoshi Segawa¹ (1. JFNL)

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

Oral presentation

[3I10-12] Evaporation and Dryness of Radioactive Solution 2

Fri. Sep 13, 2019 2:45 PM - 3:35 PM Room I (Common Education Bildg. 2F D21)

Chair:Tatsuya Suzuki(Nagaoka Univ. of Tech.)

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2:45 PM - 3:00 PM

[3I10] Study on the boiling and drying accident of HLLW

(3)Derivation of the heat-balance equation, and examination of the water and nitric acid release velocity

*Takashi Kodama¹, Hiroshi Kinuhata¹, Mikio Kumagai², Kazunori Suzuki², Shin-itiro Hayashi², Shingo Matsuoka² (1. Japan Nuclear Fuel Limited, 2. UI Sciences Inc.)

3:00 PM - 3:15 PM

[3I11] Study on the boiling and drying accident of HLLW

(4)Numerical solution of the heat-balance equation and examination of the released velocity of gaseous components

*Hiroshi Kinuhata¹, Takashi Kodama¹, Mikio Kumagai², Kazunori Suzuki², Shin-itiro Hayashi², Shingo Matsuoka² (1. Japan Nuclear Fuel Limited, 2. UI Sciences Inc.)

3:15 PM - 3:30 PM

[3I12] Study on ruthenium volatilization during evaporation and dryness of nitrate solution

Effect of coexisting nitrates on formation of volatile ruthenium tetroxide

*Tetsuya Kato¹, Tsuyoshi Usami¹, Takeshi Tsukada¹ (1. CRIEPI)

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

Oral presentation

[3I13-15] Preparedness for Criticality Accidents

Fri. Sep 13, 2019 3:35 PM - 4:25 PM Room I (Common Education Bildg. 2F D21)

Chair:Tetsuya Kato(CRIEPI)

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3:35 PM - 3:50 PM

[3I13] Preparedness for criticality accidents postulated in Rokkasho reprocessing plant

(1)Outline of postulated initiating event, preparation of subcriticality, and mitigation measures reducing the release of radioactive materials to the environment .

*Yuuki Satou¹, Yuuma Abe¹ (1. JNFL)

3:50 PM - 4:05 PM

[3I14] Preparedness for criticality accidents postulated in Rokkasho reprocessing plant

(2)Applicability of neutron absorber material (m-carborane)for the criticality accident in organic solvent phase

*Yuuma Abe¹, Yuuki Satou¹, Kiyoshi Anzai¹, Tatsuya Horimai¹, Miki Kusumoto², Kimie Sakamoto² (1. JNFL, 2. FUJIFILM Wako Pure Chemical Corporation)

4:05 PM - 4:20 PM

[3I15] Preparedness for criticality accidents postulated in Rokkasho reprocessing plant

(3)Analytical Method of m-carborane as the Neutron Absorber used in Organic Solvent Phase

*Miki Kusumoto¹, Kimie Sakamoto¹, Yuko Yamada¹, Yuuma Abe², Yuuki Satou², Kiyoshi Anzai², Tatsuya Horimai² (1. FUJIFILM Wako Pure Chemical Corporation, 2. JNFL)

Time reserved for Chair （4:20 PM - 4:25 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 504-3 Fuel Reprocessing

[2I15-18] Pyroprocessing

(1)100 g-scale UO2 reduction test using a cathode basket with a shroud

(6)Zeolite column experiments to absorb strontium from simulating spent salt and evaluation of column performance by mass transfer model

(7)Elucidation of An / Ln recovery and separation behavior with the increase of An recovery to liquid Ga cathode

(8)Investigations for waste reduction in pyroprocessing-1

[2I19-22] Aqueous Separation and Reprocessing

(1)Feasibility study on distribution process

[3I01-05] Low-radioactive Waste Treatment

(21)Practical study on Cs and Sr adsorption process in LWTF.

(22)Hydrogen generation evaluation of cement solidified by gamma irradiation

(23)Study on the effect of impurities present in waste liquid on cement solidification

(24)Study on Cement Based Encapsulation of Sodium Carbonate Liquid Waste at full scale ②

(25)Estimation of causes of stress corrosion cracking in incinerators

[3I06-09] Evaporation and Dryness of Radioactive Solution 1

(1)Characteristics of evaporation to dryness

(2)Analysis of evaporation to dryness

(3)Counter measures for evaporation to dryness

(4)Equipment design for evaporation to dryness

[3I10-12] Evaporation and Dryness of Radioactive Solution 2

(3)Derivation of the heat-balance equation, and examination of the water and nitric acid release velocity

(4)Numerical solution of the heat-balance equation and examination of the released velocity of gaseous components

Effect of coexisting nitrates on formation of volatile ruthenium tetroxide

[3I13-15] Preparedness for Criticality Accidents

(1)Outline of postulated initiating event, preparation of subcriticality, and mitigation measures reducing the release of radioactive materials to the environment .

(2)Applicability of neutron absorber material (m-carborane)for the criticality accident in organic solvent phase

(3)Analytical Method of m-carborane as the Neutron Absorber used in Organic Solvent Phase

Authentication

(1)100 g-scale UO₂ reduction test using a cathode basket with a shroud