Miyakawa Kazuya

ミヤカワカズヤ | Miyakawa Kazuya

Affiliation and department：
Job title： Senior Scientist

Research field (1)： Solid earth science

Research keywords (4)： Geological disposal of high-level radioactive waste , hydrogeology , Groundwater geochemistry , Gas geochemistry

Research theme for competitive and other funds (7)：

2023 - 2027 Development of a nuclear emergency remote monitoring system for plume dispersion in the atmosphere
2022 - 2025 Development of the new method to detect water-conducting faults and fractures by high-precision gas concentration mapping
2019 - 2022 Research on deep groundwater components affecting actinide migration
2018 - 2021 Variety of natural organic matters in deep underground and their impacts on radionuclide migration
2016 - 2018 テトラド効果に着目した深部地下環境における水・岩石反応に関する研究

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Papers (45)：

Akio Ueno, Kiyoshi Sato, Shuji Tamamura, Takuma Murakami, Hidenori Inomata, Satoshi Tamazawa, Yuki Amano, Kazuya Miyakawa, Takeshi Naganuma, Toshifumi Igarashi. Complete genome sequence of Thiomicrospira sp. strain V2501 isolated from 250 m below the ground level in Horonobe, Hokkaido, Japan. Microbiology Resource Announcements. 2024. 13. 11
Akinari Hirota, Mariko Kouduka, Akari Fukuda, Kazuya Miyakawa, Keisuke Sakuma, Yusuke Ozaki, Eiichi Ishii, Yohey Suzuki. Biofilm Formation on Excavation Damaged Zone Fractures in Deep Neogene Sedimentary Rock. Microbial Ecology. 2024. 87. 1
Saito Takumi*, Nishi Shusaku*, Amano Yuki, Beppu Hikari*, Miyakawa Kazuya. Origin of dissolved organic matter in deep groundwater of marine deposits and its implication for metal binding. ACS ES\&T Water (Internet). 2023. 3. 12. 4103-4112
Miyakawa Kazuya, Kashiwaya Koki*, Komura Yuto*, Nakata Kotaro*. Evolution of porewater in a Neogene sedimentary formation in the Horonobe area, Hokkaido, Japan: Modeling of burial diagenesis. Geochemical Journal. 2023. 57. 5. 155-175
Hiroki Nishimura, Mariko Kouduka, Akari Fukuda, Toyoho Ishimura, Yuki Amano, Hikari Beppu, Kazuya Miyakawa, Yohey Suzuki. Anaerobic methane-oxidizing activity in a deep underground borehole dominantly colonized by Ca. Mathanoperedenaceae. Environmental Microbiology Reports. 2023. 1-9

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MISC (21)：

Miyakawa Kazuya, Hayano Akira, Sato Naomi, Nakata Kotaro*, Hasegawa Takuma*. HFB-1 borehole survey data collection. JAEA-Data/Code 2023-009. 2023. 103
Miyakawa Kazuya, Nakata Kotaro*. Data of groundwater chemistry obtained in the Horonobe Underground Research Laboratory Project (FY2022). JAEA-Data/Code 2022-013. 2023. 19
Kazuya Miyakawa, Hajime Yamamoto. Spatial distribution of desaturation around the tunnel predicted by three-dimensional two-phase flow modeling of the degassing process of dissolved gases in groundwater. JAEA-Research. 2022. 2022-003
Kazuya Miyakawa. Data of groundwater chemistry obtained in the Horonobe Underground Research Laboratory Project (FY2021). JAEA-Data/Code. 2022. 2021-021
下茂道人, 丹羽正和, 宮川和也, 戸野倉賢一, 徳永朋祥. Identification of gas migration pathways around faults and fold axes using high-precision methane measurement technology. 日本地球惑星科学連合大会予稿集(Web). 2022. 2022

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Lectures and oral presentations (91)：

Molecular characterization of reactive deep underground dissolved organic matters for metal ion using fluorescence spectroscopy and high-resolution mass spectrometry
(Interfaces Against Pollution 2024 (IAP 2024))
Variation of $^{234}$U/$^{238}$U isotope ratios in groundwater under different redox environments measured by mass spectrometry
(International Mass Spectrometry Convention 2024 (IMSC2024))
Variation of $^{234}$U/$^{238}$U isotopic ratios in deep groundwater in siliceous mudstone aquifer
(第61回アイソトープ・放射線研究発表会)
Producer vs. consumer; Ammonium assimilation by DPANN in deep subsurface habitats
(Astrobiology Science Conference (AbSciCon 2024))
Molecular characterization of reactive deep underground dissolved organic matters for metal ion using high-resolution mass spectrometry
(日本原子力学会2024年春の年会)

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Education (3)：

2008 - 2011 Nagoya University Department of Earth and Environmental Sciences PhD (Doctor of Science)
2006 - 2008 Nagoya University Department of Earth and Environmental Sciences MSc
2002 - 2006 Nagoya University Department of Earth and Planetary Sciences BSc

Professional career (1)：

Work history (4)：

2024/11 - 現在 Japan Atomic Energy Agency Nuclear Fuel Cycle Engineering Laboratories, Nuclear Backend Technology Development Department, Waste Disposal System Development Group Senior Scientist
2020/10 - 2022/03 Japan Atomic Energy Agency Sector of Decommissioning and Radioactive Waste Management, Horonobe Underground Research Center, Horonobe Underground Research Department, Sedimentary Environment Research Group Senior Scientist
2011/06 - 2014/05 Japan Atomic Energy Agency Geological Isolation Research and Development Directorate, Horonobe Underground Research Unit, Sedimentary Environment Research Group Postdoctral researcher
2011/04 - 2011/05 Nagoya University Graduate School of Environmental Studies, Department of Earth and Environmental Sciences Postdoctral researcher

Awards (5)：

2021/05 - Japanese Association of Groundwater Hydrology Research encouragement award (2019-2020) Evaluation of uncertainty of redox potential in deep groundwater: A case study in the Horonobe area, Hokkaido
2019/10 - Japan Atomic Energy Agency 理事長表彰研究開発功績賞特賞地層処分システムにおける微生物影響評価手法の開発
2017/09 - ICGG Committee the second place in the Best Poster Competition
2015/08 - ICGG Committee The best poster presentation award
2008/07 - Nagoya University 名古屋大学学術奨励賞

Association Membership(s) (4)：

JAPAN GEOSCIENCE UNION , SEISMOLOGICAL SOCIETY OF JAPAN , THE GEOLOGICAL SOCIETY OF JAPAN , GEOCHEMICAL SOCIETY OF JAPAN

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