Effect of dissolved organic matter in urban wastewater on heavy metal speciation and trophic transfer

• Project/Area Number: 20360239
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Civil and environmental engineering
• Research Institution: The University of Tokyo
• Principal Investigator: NAKAJIMA Fumiyuki The University of Tokyo, 環境安全研究センター, 准教授 (30292890)
• Co-Investigator(Kenkyū-buntansha): KASUGA Ikuro 東京大学, 大学院・工学系研究科, 助教 (20431794)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000); Fiscal Year 2010: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2009: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000); Fiscal Year 2008: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 亜鉛 / 錯形成 / スペシエーション / 生物移行性 / 下水処理 / 水 / 溶存有機物 / 緑藻 / 光分解 / 下水処理水 / 水環境 / 銅

Research Abstract

Dissolved organic matter in municipal wastewater treatment plant effluent had higher conditional stability constant of zinc and copper complexation than natural humic substance. Addition of the organic matter to culture media induced lower zinc uptake by green algae as well as less trophically available zinc in algal cells. Consequently, it is suggested that zinc toxicity to the predator in the environment is reduced by the organic matter. Result of biodegradation and photodegradation tests showed the stability of the organic matter under river water environment in terms of complexation characteristics.

Research Products

• [Journal Article] Biological alteration of zinc complexation characteristics of dissolved organic matter in domestic wastewater treatment plant effluent under river water environment (2010)
  • Author(s): Tushara Chaminda G.G, Fumiyuki Nakajima, Ikuro Kasuga
  • Journal Title: Journal of Water and Environment Technology Vol.8 Pages: 403-411
  • NAID: 130000446127
  • Peer Reviewed
• [Journal Article] Comparison of Metal (Zn and Cu)Complexation Characteristics of DOM in urban runoff, domestic wastewater and secondary effluent (2010)
  • Author(s): G.G Tushara Chaminda, Fumiyuki Nakajima, Hiroaki Furumai, Ikuro Kasuga, Futoshi Kurisu
  • Journal Title: Water Science& Technology Vol.62 Pages: 2044-2050
  • Peer Reviewed
• [Journal Article] Biological alteration of zinc complexation characteristics of dissolved organic matter in domestic wastewater treatment plant effluent under river water environment (2010)
  • Author(s): Tushara Chaminda G.G
  • Journal Title: Journal of Water and Environment Technology Volume: Vol.8 Pages: 403-411
  • Peer Reviewed
• [Journal Article] Comparison of Metal (Zn and Cu) Complexation Characteristics of DOM in urban runoff, domestic wastewater and secondary effluent (2010)
  • Author(s): G.G Tushara Chaminda
  • Journal Title: Water Science & Technology Volume: Vol.62 Pages: 2044-2050
  • Peer Reviewed
• [Presentation] Biological alteration of zinc complexation characteristics of dissolved organic matter in domestic wastewater treatment plant effluent under river water environment (2010)
  • Author(s): G.G Tushara Chaminda
  • Organizer: Water and Environment Technology Conference 2010 (WET2010)
  • Place of Presentation: 横浜
  • Year and Date: 2010-06-26
• [Presentation] Biological alteration of zinc complexation characteristics of dissolved organic matter in domestic wastewater treatment plant effluent under river water environment (2010)
  • Author(s): G.G Tushara Chaminda
  • Organizer: Water and Environment Technology Conference 2010 (WET2010)
  • Place of Presentation: 横浜国立大学(神奈川県)
  • Year and Date: 2010-06-26
• [Presentation] Variation of zinc uptake and trophically-available fraction in green algae Scenedesmus acutus under different growth media with WWTP effluent (2010)
  • Author(s): 中島典之
  • Organizer: 第44回水環境学会年会
  • Place of Presentation: 福岡
  • Year and Date: 2010-03-15
• [Presentation] Comparison of Metal (Zn and Cu) Complexation Characteristics of DOM in Different Urban Wastewater (2009)
  • Author(s): G.G Tushara Chaminda
  • Organizer: 3rd IWA-ASPIRE Conference and Exhibition
  • Place of Presentation: 台北(台湾)
  • Year and Date: 2009-10-21
• [Presentation] Comparison of Metal(Zn and Cu)Complexation Characteristics of DOM in Different Urban Wastewater (2009)
  • Author(s): G.G Tushara Chaminda
  • Organizer: 3rd IWA-ASPIRE Conference and Exhibition
  • Place of Presentation: 台北(台湾)
  • Year and Date: 2009-10-21
• [Presentation] Heavy metal uptake and trophically-available fraction in green algae Scenedesmus acutus under various growth conditions (2009)
  • Author(s): Rina Resnawati
  • Organizer: 第18回環境化学討論会
  • Place of Presentation: つくば
  • Year and Date: 2009-06-11
• [Presentation] Zn and Cu complexation with DOM in wastewater treatment plant effluent (2009)
  • Author(s): G.G Tushara Chaminda
  • Organizer: SETAC Europe 19th Annual Meeting
  • Place of Presentation: ヨーテボリ(スウェーデン)
  • Year and Date: 2009-06-01
• [Presentation] Characterization of Zn and Cu complexation with DOM in wastewater treatment plant effluent (2009)
  • Author(s): 中島典之
  • Organizer: 第43回水環境学会年会
  • Place of Presentation: 山口
  • Year and Date: 2009-03-18
• [Presentation] Characterization of Zn and Cu complexation with DOM in waste water treatment plant effluent (2009)
  • Author(s): 中島典之
  • Organizer: 第43回水環境学会年会
  • Place of Presentation: 山ロ
  • Year and Date: 2009-03-18