MMIJ 2025, Sapporo
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Session Details

Special session

(Theme session) Recent Advances in the Assessment and Mitigation of Geogenic Contamination in the Geosphere

Thu. Sep 4, 2025 1:00 PM - 4:50 PM JST
Thu. Sep 4, 2025 4:00 AM - 7:50 AM UTC
Room-4 (B11, 1Fl, B1 Block)
Chairperson: 有馬孝彦（北海道大学）、中村謙吾（埼玉大学）

●休廃止鉱山の対策や建設工事などで発生する土砂などの自然由来に起因する地圏環境汚染問題の最新の動向を紹介するとともに、今後の管理・対策の効率化などについて議論する。

(Presentation: 25 minutes allotted for lecture and 5 minutes for Q&A out of 30 minutes per presentation)
1:00 PM - 1:05 PM JST(4:00 AM - 4:05 AM UTC)

[3410-16-1add]Opening Address & Outline of the session

司会：有馬孝彦（北海道大学）
1:05 PM - 1:35 PM JST(4:05 AM - 4:35 AM UTC)

[3410-16-01]As removal performances of passive treatment by an aeration process for As-Fe containing mine water

○YUKI SEMOTO1, TAKAYA HAMAI1, YUSEI MASAKI1, MANAMI IKEDA1, NAOKI IKEGAMI1, HISATOSHI FURUYA1, KEISHI OYAMA5, KAITO YAMAGATA2, HISANORI IWAI3, CHIHARU TOKORO2,4 (1. Japan Organization for Metals and Energy Security, 2. Department of Resources and Environmental Engineering, Faculty of Science and Engineering, Waseda University, 3. Sustainable Energy & Environmental Society Open Innovation Research Organization, Waseda University, 4. Department of System Innovation, Faculty of Engineering, The University of Tokyo, 5. Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University)
司会：有馬孝彦（北海道大学）
1:35 PM - 2:05 PM JST(4:35 AM - 5:05 AM UTC)

[3410-16-02]Long-term operational results of constructed wetlands treatment for acid mine drainage

○tagiru Ogino1 (1. Industrial Technology and Environment Research Department)
司会：有馬孝彦（北海道大学）
2:05 PM - 2:35 PM JST(5:05 AM - 5:35 AM UTC)

[3410-16-03]Development and implementation of remote monitoring technology for old and abandoned mines

○tetsuo yasutaka1, Hiromitsu Furukawa1 (1. National Institute of Advanced Industrial Science and Technology (AIST))
司会：有馬孝彦（北海道大学）
2:35 PM - 3:05 PM JST(5:35 AM - 6:05 AM UTC)

[3410-16-04]Environmental impact assessment during natural disasters at abandoned mines

○KEI SHINGAI1[Student presentation: Doctoral course] (1. Mitsubishi Materials Corporation)
司会：有馬孝彦（北海道大学）
3:05 PM - 3:15 PM JST(6:05 AM - 6:15 AM UTC)

[3410-16-6add]Break

3:15 PM - 3:45 PM JST(6:15 AM - 6:45 AM UTC)

[3410-16-05]Vegetation and the formation factors at a sedimentary site in Yoshino mine

○Keiko Yamaji1, Kohei Doyama2, Yuta Matsushiro1, Mitsuki Yachi1, Toshikatsu Haruma3, Xingyan Lu1, Kenji Tamura1, Yuki Semoto4, Takaya Hamai4 (1. University of Tsukuba, 2. National Institute of Advanced Industrial Science and Technology, 3. Forestry and Forest Products Research Institute, 4. Japan Organization for Metals and Energy Security)
司会：中村謙吾（埼玉大学）
3:45 PM - 4:15 PM JST(6:45 AM - 7:15 AM UTC)

[3410-16-06]Case studies on appropriate countermeasures for tunnel excavated rocks in the Hokkaido Shinkansen Project

○Yoshihiko Nagakawa1 (1. Japan Railway Construction, Transport and Technology Agency)
司会：中村謙吾（埼玉大学）
4:15 PM - 4:45 PM JST(7:15 AM - 7:45 AM UTC)

[3410-16-07]Outline of Countermeasures for Excavated Rocks Containing Naturally Occurring Heavy Metals in National Road Tunnels in Hokkaido, Japan

○Takahiro Yamamoto1[Student presentation: Doctoral course], Yoshinori Furuichi2, Yoshihisa Yamashita3, Shunsuke Jikihara1, Masaaki Abe4, Nobuhito Aoki4, Takayuki Komiya4, Takahiko Arima5, Toshifumi Igarashi6 (1. PACIFIC CONSULTANTS CO., LTD., 2. Hokkaido Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism, 3. Docon Co., Ltd., 4. Hokkaido Development Engineering Center, 5. Faculty of Engineering, Hokkaido University, 6. Northern Advancement Center for Science & Technology)
司会：中村謙吾（埼玉大学）
4:45 PM - 4:50 PM JST(7:45 AM - 7:50 AM UTC)

[3410-16-10add]Closing

司会：中村謙吾（埼玉大学）
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