Fate of N-Nitrosodimethylamine(NDMA) in water and evaluation of UV irradiation as a treatment process against NDMA

• Project/Area Number: 21760414
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Civil and environmental engineering
• Research Institution: The University of Tokyo
• Principal Investigator: OGUMA Kumiko 東京大学, 大学院・工学系研究科, 講師 (00361527)
• Research Collaborator: MURAKAMI Michio 東京大学, 「水の知」サントリー総括寄付講座, 特任助教 (50509932) ; SAKAI Hiroshi 東京大学, 大学院・工学系研究科, 特任助教 (70533123)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 用排水システム / 水処理 / 紫外線 / 消毒副生成物 / 浄水処理 / 紫外線処理 / ニトロソジメチルアミン / 塩素消毒

Research Abstract

NDMA concentration in river water and groundwater in Tokyo was examined to show the range of NDMA concentration in drinking water sources. Ultraviolet light at different wavelengths was irradiated against NDMA solution. The result indicated that decay rate differs at different wavelengths, and that co-existing matters including dissolved organic matter and nitrate deteriorate the decay rate of NDMA. Moreover, UV-irradiated NDMA solutions were subjected to chloramination, resulting in no significant reformation of NDMA. Results of this study indicated that UV irradiation is effective as a treatment process against NDMA.

Research Products

• [Journal Article] Occurrence and formationpotential of N-nitrosodimethylamine inground water and river water in Tokyo (2011)
  • Author(s): Nguyen Van Huy, Michio Murakami, Hiroshi Sakai, Kumiko Oguma, KojiKosaka, Mari Asami and SatoshiTakizawa
  • Journal Title: Water Research Volume: 45 Issue: 11 Pages: 3369-3377
  • DOI: 10.1016/j.watres.2011.03.053
  • Peer Reviewed
• [Journal Article] Influence of Nitrate onUV-degradation ofN-Nitrosodimethylamine(NDMA) (2010)
  • Author(s): Hiroshi SAKAI, Tatsuro TAKAMATSU, Kumiko OGUMA, Michio MURAKAMI, Koji KOSAKA, Mari ASAMI, SatoshiTAKIZAWA
  • Journal Title: International Ultraviolet AssociationNews Volume: 12(2) Pages: 26-29
  • Peer Reviewed
• [Journal Article] N-ニトロソジメチルアミンの紫外線分解と遊離塩素添加による再生成の評価 (2010)
  • Author(s): 高松達朗、酒井宏治、小熊久美子、村上道夫、小坂浩司、浅見真理、滝沢智
  • Journal Title: 環境工学研究論文集 Volume: 第47巻 Pages: 127-133
  • Peer Reviewed
• [Presentation] 共存物質がN-ニトロソジメチルアミンの紫外線分解と塩素添加による再生成に与える影響 (2012)
  • Author(s): 高松達朗、酒井宏治、小熊久美子、小坂浩司、浅見真理、滝沢智
  • Organizer: 第46回日本水環境学会年会
  • Place of Presentation: 東洋大学
  • Year and Date: 2012-03-16
• [Presentation] 共存物質がN-ニトロソジメチルアミンの紫外線分解と塩素添加による再生成に与える影響 (2012)
  • Author(s): 高松達朗, 酒井宏治, 小熊久美子, 小坂浩司, 浅見真理, 滝沢智
  • Organizer: 第46回日本水環境学会年会
  • Place of Presentation: 東京都
  • Year and Date: 2012-03-16
• [Presentation] Influence of Nitrate onUV-degradation ofN-Nitrosodimethylamine (2010)
  • Author(s): Hiroshi SAKAI, Tatsuro TAKAMATSU, Kumiko OGUMA, Michio MURAKAMI, Koji KOSAKA, Mari ASAMI, SatoshiTAKIZAWA
  • Organizer: SingaporeInternational Water Week 2010
  • Place of Presentation: シンガポール
  • Year and Date: 2010-06-28
• [Presentation] Occurrence and Formation Potential ofN-Nitrosodimethylamine in Groundwaterand River In Tokyo (2010)
  • Author(s): NGUYEN Van Huy、村上道夫、酒井宏治、小熊久美子、小坂浩司、浅見真理、滝沢智
  • Organizer: 第19回環境化学討論会
  • Place of Presentation: 中部大学
  • Year and Date: 2010-06-21
• [Presentation] N-ニトロソジメチルアミン(NDMA)の紫外線分解に影響を及ぼす水質因子の検討 (2010)
  • Author(s): 酒井宏治、高松達朗、小熊久美子、村上道夫、小坂浩司、浅見真理、滝沢智
  • Organizer: 日本オゾン協会第19回年次研究講演会
  • Place of Presentation: 京都大学
  • Year and Date: 2010-06-19
• [Presentation] UV treatment against indigenous Microcystis species and its potential to cause microcystin release and change of aquatic biota (2009)
  • Author(s): Hiroshi SAKAI
  • Organizer: 5th International Congress on Ultraviolet Technologies
  • Place of Presentation: アムステルダム・オランダ
  • Year and Date: 2009-09-22