Daiki Shirakawa

Career summary (Daiki Shirakawa)

2014.4     Entered Department of Socio-Environmental Engineering, School of Engineering, Hokkaido University, Japan.

2018.3     Graduated from above.

2018.4     Entered master’s program of Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Japan.

2020.3     Completed above program.

2020.4     Entered doctoral program of Division of Environmental Engineering, Graduate School of Engineering, Hokkaido University, Japan. Japan Society for the Promotion of Science (JSPS) Research Fellow-DC1, above.

2023.3     Completed above program. Ph.D.

2023.4     Postdoctoral researcher, Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, Japan.

2024.4     Japan Society for the Promotion of Science (JSPS) Research Fellow-PD, Department of Environmental Health, National Institute of Public Health, Japan.

2025.4     Japan Society for the Promotion of Science (JSPS) Research Fellow-PD, Wako Branch Office for Drinking Water Quality Research, National Institute for Environmental Studies, Japan.

2026.9     Research Associate, School of Bioscience and Biotechnology, Tokyo University of Technology, Japan (to present).

Degree (Daiki Shirakawa)

1. Ph.D. in Engineering, Hokkaido University, 2023.

Awards (Daiki Shirakawa)

1. Best Poster Award, Environmental Engineering Forum, 2023.
2. Japan Society on Water Environment (JSWE)-ORGANO Doctoral Research Award, 2023.
3. The WET Excellent Presentation Award at WET2020-online, 2020.
4. The WET Excellent Presentation Award at WET2019, 2019.
5. Best Presentation Award, Interim Presentation, Hokkaido University, 2018.
6. Dean’s Award for Academic Achievement, School of Engineering, Hokkaido University, 2018.
7. Japan Society on Water Environment (JSWE)-LION Best Student Poster Presentation Award, 2018.

Publications (Daiki Shirakawa)

1. Shirakawa, D., Shirasaki, N., Koriki, S., Matsushita, T., Matsui, Y., Application of viability PCR to investigate the capsid integrity of human enteric viruses in drinking water sources and the persistence of those viruses in surface waters. Science of The Total Environment 1028, 181718, 2026.(DOI)
2. Shirakawa, D., Shirasaki, N., Hu, Q., Matsushita, T., Matsui, Y., Takagi, H., Oka, T., Investigation of removal and inactivation efficiencies of human sapovirus in drinking water treatment processes by applying an in vitro cell-culture system. Water Research 236, 119951, 2023.(DOI)
3. Shirakawa, D., Shirasaki, N., Matsushita, T., Matsui, Y., Yamashita, R., Matsumura, T., Koriki, S., Evaluation of reduction efficiencies of pepper mild mottle virus and human enteric viruses in full-scale drinking water treatment plants employing coagulation-sedimentation–rapid sand filtration or coagulation–microfiltration, Water Research 213, 118160, 2022.(DOI)

International conferences (First author, Daiki Shirakawa)

1. Shirakawa, D., Miura, T., Tojo, M., Asami, M., Detection and genetic analysis of intact norovirus in drinking water sources by using capsid integrity PCR. 9th International Society for Food and Environmental Virology Conference, Athens, Greece, 6–10 September 2026.
2. Shirakawa, D., Miura, T., Tojo, M., Masuda, T., Asami, M., Present forms of viruses in raw and filtered waters in full-scale rapid sand filtration systems. IWA Particle Separation Specialist Group Conference 2026, Sapporo, Japan, 21–24 June 2026.
3. Shirakawa, D., Shirasaki, N., Yamashita, R., Matsumura, T., Koriki, S., Matsushita, T., Matsui, Y., Investigating virus reduction efficiencies in coagulation-sedimentation–rapid sand filtration or coagulation–microfiltration by a combination of full-scale studies and lab-scale experiments. IWA World Water Congress & Exhibition 2022, Copenhagen, Denmark, 11–15 September 2022.
4. Shirakawa, D., Shirasaki, N., Matsumura, T., Matsushita, T., Matsui, Y., Evaluation of virus reduction efficiency in coagulation–microfiltration by a full-scale study and lab-scale experiments. The Water and Environment Technology Conference 2020-online, 7–8 November 2020.
5. Shirakawa, D., Shirasaki, N., Yamashita, R., Koriki, S., Matsumura, T., Matsushita, T., Matsui, Y., Evaluation of virus removal efficiency in an actual drinking water treatment plant by using a novel virus concentration method and pepper mild mottle virus as a process indicator. The Water and Environment Technology Conference 2019, Osaka, Japan, 13–14 July 2019.

Academic association membership (Daiki Shirakawa)

1. Viral Gastroenteritis Study Group, Japan
2. Japan Society on Water Environment