Removal of toxic ions in acid mine drainage using "Red Mud"

• Project/Area Number: 20760569
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Earth system and resources enginnering
• Research Institution: Waseda University
• Principal Investigator: TOKORO Chiharu Waseda University, 理工学術院, 准教授 (90386615)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 環境修復技術 / 省資源技術 / リサイクル技術 / 環境負荷低減技術

Research Abstract

Sorption mechanism of As(III/V) by Red Mud was experimentally investigated. Sorption behavior in H2SO4 system was different from compared with it in HNO3 system. Al-free Red Mud, which prepared by dissolution of only Al contents from Red Mud, was also used to investigate sorption mechanism of As(III/V) in detail.

Research Products

• [Journal Article] Sorption Mechanisms of Arsenate during Coprecipitation with Fenihydrite in Aqueous Solution (2010)
  • Author(s): C. TOKORO, Y. YATSUGI, H. KOGA, S. OWADA
  • Journal Title: Environmental Science & Technology vol.44,no2 Pages: 638-643
• [Journal Article] Sorption Mechanisms of Arsenate during Coprecipitation with Fenihydrite in Aqueous Solution (2010)
  • Author(s): Chiharu TOKGRO, Yohei YATSUGI, Hajime KOGA, Shuji OWADA
  • Journal Title: Environmental science & technology vol.44, no2 Pages: 638-643
  • Peer Reviewed
• [Presentation] 酸性坑廃水処理への適用を目的とした赤泥へのAs吸着機構の解明 (2010)
  • Author(s): 平井美香・所千晴・中津川香世・大和田秀二
  • Organizer: 資源・素材春季大会
  • Place of Presentation: 東京
  • Year and Date: 2010-03-30
• [Presentation] 水酸化アルミニウムによる希薄F(-I)またはAs(V)含有廃水の共沈処理の相互比較および除去メカニズムの類型化 (2010)
  • Author(s): 原口大輔・小田裕史・所千晴
  • Organizer: 資源・素材春季大会
  • Place of Presentation: 東京
  • Year and Date: 2010-03-30
• [Presentation] 希薄As(V)の水酸化第二鉄への共沈メカニズムに関する分光学的手法と界面工学的手法の比較 (2010)
  • Author(s): 古賀創・原口大輔・所千晴
  • Organizer: 資源・素材春季大会
  • Place of Presentation: 東京
  • Year and Date: 2010-03-30
• [Presentation] Experimental Investigation for Co-precipitation Mechanism of Dilute Arsenate With Ferric Salts in Aqueous Solution (2009)
  • Author(s): H. KOGA, C. TOKORO, Y. YATUGI, S. OWADA
  • Organizer: Proceedings of The 10 th International Symposium on East Asian Resources Recycling Technology (EARTH 2009)
  • Place of Presentation: JEJU
• [Presentation] 酸性坑廃水処理への適用を目的とした赤泥へのAs吸着機構の解明 (2009)
  • Author(s): 中津川香世・所千晴・大槻晶・大和田秀二
  • Organizer: 資源・素材学会春季大会
  • Place of Presentation: 千葉
• [Presentation] Experimental Investigation for Co-precipitation Mechanism of Dilute Arsenate With Ferric Salts in Aqueous Solution (2009)
  • Author(s): Hajime KOGA, Chiharu TOKORO, Yohei YATUGI, Shuji OWADA
  • Organizer: EARTH 2009
  • Place of Presentation: JEJU
• [Presentation] 酸性坑廃水処理への適用を目的とした赤泥へのAs吸着機構の解明 (2008)
  • Author(s): 中津川香世・所千晴・大槻晶・大和田秀二
  • Organizer: 資源・素材学会
  • Place of Presentation: 干葉
  • Year and Date: 2008-03-26
• [Presentation] 水酸化鉄およびアルミニウムによる希薄ヒ素およびフッ素の共沈廃水処理における除去機構の解明 (2008)
  • Author(s): 原口大輔・所千晴・大和田秀二
  • Organizer: 資源・素材2008
  • Place of Presentation: 仙台
• [Presentation] Co-precipitation phenomena in wastewater treatment of dilute toxic anions (2008)
  • Author(s): C. Tokoro, Y. Yatsugi, A. Otsuki, S. Owada, H. Sasaki
  • Organizer: Proceedings of XXIV Mineral Processing Congress
  • Place of Presentation: Beijing
• [Presentation] Removal mechanism of dilute As(V) or F(I) in wastewater using Fe(III) or Al(III) hydroxides co-precipitation method (2008)
  • Author(s): C. Tokoro, Y. Yatsugi, D. Haraguchi, A. Otsuki, S. Owada, H. Sasaki
  • Organizer: Interface Against Pollution 2008
  • Place of Presentation: Kyoto
• [Presentation] Removal mechanism of dilute As(V) or F(I) in wastewater using Fe(III) or Al(III) hydroxides co-precipi tation method (2008)
  • Author(s): C. Tokoro, Y. Yatsugi, D. Haraguchi, A. Otsuki, S. Owada and H. Sasaki
  • Organizer: Interface Against Pollution 2008
  • Place of Presentation: 京都
• [Presentation] Co-precipitation phenomena in wastewater treatment of dilute toxic anions (2008)
  • Author(s): C. Tokoro, Y. Yatsugi, A. Otsuki, S. Owada and H. Sasaki
  • Organizer: Proceedings of XXIV Mineral Processing Congress
  • Place of Presentation: 北京