Japan Society of Civil Engineers 2026 Annual Meeting
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Session Details

Section II

水質・物質輸送・循環

Wed. Sep 2, 2026 11:00 AM - 12:20 PM JST
Wed. Sep 2, 2026 2:00 AM - 3:20 AM UTC
AV Room 5, 4th Floor, Library (Hokkai-Gakuen University)
11:00 AM - 11:10 AM JST(2:00 AM - 2:10 AM UTC)

[II-40]Assessment of Microplastic and Tire and Road Wear Particle Contamination in the Ota River

*Yuka Kanda1, Shota Kuramoto2, Hiroko Watanabe1, Tomoya Kataoka1 (1. Ehime University, 2. Ehime University graduates)
11:10 AM - 11:20 AM JST(2:10 AM - 2:20 AM UTC)

[II-41]Flood observation and evaluation of the L-Q equation for the annual transport estimation of meso- and microplastics by rivers

*Mamoru Tanaka1, Yasuo Nihei1 (1. Tokyo University of Science)
11:20 AM - 11:30 AM JST(2:20 AM - 2:30 AM UTC)

[II-42]Size spectrum of numerical and mass concentration of microplastics in river water

*Kota Egoshi1, Mamoru Tanaka2, Yasuo Nihei2 (1. Graduate School of Tokyo University of Science, 2. Tokyo University of Science)
11:30 AM - 11:40 AM JST(2:30 AM - 2:40 AM UTC)

[II-43]Source Apportionment of Point Pollution in River Confluences Using Chemical Fingerprinting and Non-Negative Least Squares Estimation

*Wanasuriya Mudiyanselage Kanchana Dasunpriya Wijeratna1, So Kazama1, Kumudu Madhawa Kurugama1 (1. Tohoku University)
11:40 AM - 11:50 AM JST(2:40 AM - 2:50 AM UTC)

[II-44]Laboratory Experiment on the Suppression Effect of Nutrient and Hydrogen Sulfide Release from Sediments by Granulated Coal Ash Capping

*Kaisei Uchida1, Keisuke Takekuma2, Taichi Tebakari3 (1. Graduate School of Science and Engineering,Chuo university, 2. Ministry of Land, Infrastructure, Transport and Tourism Chubu Regional Development Bureau, 3. Faculty of Science and Engineering,Chuo university)
11:50 AM - 12:00 PM JST(2:50 AM - 3:00 AM UTC)

[II-45]Impact analysis of climate change on river temperature in basin systems using integrated basin water and heat budget analysis model

*Daichi Fukumaru1, Yoshihisa Akamatsu1 (1. Yamaguchi University)
12:00 PM - 12:10 PM JST(3:00 AM - 3:10 AM UTC)

[II-46]Assessing the effect of sediment replenishment on riverbed and benthos

*Takumi Hanaoka1, Minoru Saito2, Seiji Miyaozno1, Keita Maruyama3, Keita Okada1, Yoshihisa Akamatsu1 (1. Yamaguchi University, 2. Japan International Research Center for Agricultural Sciences, 3. Tokyo University of Marine Science and Technology)
12:10 PM - 12:20 PM JST(3:10 AM - 3:20 AM UTC)

[II-47]Evaluating the Effectiveness of a High-Dissolved-Oxygen Water Purification Facility and a Novel Approach Using Carbon Iron Complex Material

*Shimon KOIKE1, Yuki HAGINO1, Yutaka HOJO2, Hidero NOMOTO3, Kenichi FUJINO3, Mikinao GOTO4, Mio HAYASHI4, Keisuke OKUYAMA4, Tetsunori INOUE5 (1. Tokyo Kyuei Co., Ltd., 2. Sanyo Techno Marine, Inc., 3. NIPPON STEEL Chemical & Material Co., Ltd., 4. Ota City, 5. Port and Airport Research Institute)
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