*Yohei Takahashi¹, Humihiko Sugai¹, Yuya Okamoto² (1. TAISEI・MURAMOTO・NAKABAYASHI CORPORATION Joint Venture, 2. Osaka Prefectural Government Eastern Sewerage Works Office)

*Keitaro Mori¹ (1. EAST JAPAN RAILWAY COMPANY)

*Yasuyuki Iwane¹, Masahito Kobayashi¹, Diepduy Dinh¹, Yosuke Ode², Yasunao Matsumoto³ (1. Tobishima Corporation, 2. Saitama University, 3. Saitama University)

*Ryota Hino¹, Kazuki Ide¹, Kenichi Fukutake¹, Akihide Kamata¹ (1. Obayashi)

*Akihide Kamata¹, Yu Oshima¹, Ryota Hino¹, Kenichi Fukutake¹, Kazuki Ide¹ (1. Obayashi Corporation)

*Naoki Aoyama¹, Masamichi Takebe², Nozomu Hirose², Kohji Marumoto³ (1. Advanced Engineering Faculty, National institute, Matsue College of Technology , 2. National institute, Matsue College of Technology , 3. National institute for Minamata Disease)

*Hiroji ISHIMOTO¹, Hiyori Maehara² (1. Regional Environmental Laboratory, 2. Japan Advanced Insttiute of Science and Technolpgy)

*Keigo Fukuda¹, Hiroko Sumida¹, Tomohiro Yamasaki¹ (1. Toyo Construction co.,LTD.)