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Understandings and model developments of transport characteristics of nano-materials in soils

Research Project

Project/Area Number 18H01530
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22030:Geotechnical engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

hamamoto shoichiro  東京大学, 大学院農学生命科学研究科(農学部), 准教授 (30581946)

Co-Investigator(Kenkyū-buntansha) 竹村 貴人  日本大学, 文理学部, 教授 (30359591)
山下 祐司  筑波大学, 生命環境系, 助教 (30543227)
斎藤 広隆  東京農工大学, (連合)農学研究科(研究院), 教授 (70447514)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Keywordsナノ材料 / ナノバブル / コロイド粒子 / 多孔質体 / 物質輸送 / 土壌 / 移動特性 / 汚染物質 / 移動機構
Outline of Final Research Achievements

The objective of this study was to characterize the transport characteristics of nanoscale materials (NMs) including nanobubbles (NBs) and nanoparticles (Carboxylate latex, CL) in porous media. Laboratory column experiments using NMs revealed that the presence of deposited colloidal particles and multivalent ions inhibited the transport of NBs or CLs within the porous media, and that the desorption of deposited NBs or CLs was enhanced as the ionic strength of the porewater decreased. These behaviors of NBs in the porous media could be expressed by advection-dispersion equations considering reversible and irreversible attachment and desorption between NMs and packed particles.

Academic Significance and Societal Importance of the Research Achievements

国内外の各地で顕在化している土壌・地下水汚染問題の解決には,汚染土壌の効率的な浄化手法の確立が不可欠である。汚染土壌の浄化手法の中でも,近年,ナノスケール材料(例えば、ゼロ価鉄粒子等の人工ナノ粒子や酸素ナノバブル)の利用が注目されている。土壌浄化にNMを利用する際には,NMの土壌内移動とその運命予測が重要な鍵を握る。本研究成果から、土壌内でのNM挙動に影響を与える支配的要因を整理し、既存の多孔質体内の物質移動方程式を修正することで、NM挙動を表現することが可能となった。土壌環境へのNMのさらなる利活用を考える上で貴重な基礎的知見が得られた。

Report

(4 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (22 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results) Presentation (15 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] アメリア塩類研究所(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Inhibited nanobubble transport in a saturated porous medium: Effects of deposited colloidal particles2021

    • Author(s)
      Sugimoto Takuya、Hamamoto Shoichiro、Nishimura Taku
    • Journal Title

      Journal of Contaminant Hydrology

      Volume: 242 Pages: 103854-103854

    • DOI

      10.1016/j.jconhyd.2021.103854

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of the dissolved organic matter on Cs transport in the weathered granite soil2020

    • Author(s)
      Tatsuno, T., S. Hamamoto, N. Nihei and T. Nishimura
    • Journal Title

      Journal of Environmental Management

      Volume: 254 Pages: 109785-109785

    • DOI

      10.1016/j.jenvman.2019.109785

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nano-bubble retention in saturated porous media under repulsive van der Waals and electrostatic conditions2019

    • Author(s)
      Hamamoto, S., T. Sugimoto, T. Takemura, T. Nishimura, S. Bradford
    • Journal Title

      Langmuir

      Volume: 35 Pages: 6853-6860

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Linking Pore Network Structure Derived by Micro-focus X-ray CT to Mass Transport Parameters in Differently Compacted Loamy Soils2019

    • Author(s)
      Baniya, A., K. Kawamoto, S. Hamamoto, T. Sakaki, T. Saito, K. Muller, P. Moldrup, and T. Komatsu
    • Journal Title

      Soil Research

      Volume: 57 Pages: 642-656

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Methane eruption from a landfill final cover soil during rainfall events in laboratory experiments.2019

    • Author(s)
      Izumoto, S., S. Hamamoto, K. Kawamoto, M. Nagamori, and T. Nisiimura
    • Journal Title

      Soils and Foundations

      Volume: 59 Pages: 1052-1062

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of pH on Nano-Bubble Stability and Transport in Saturated Porous Media2018

    • Author(s)
      Hamamoto, S., T. Takemura, K. Suzuki, and T. Nishiimura
    • Journal Title

      J. Contaminant Hydrology

      Volume: 208 Pages: 61-67

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Interaction between Nano-Bubbles and Colloidal Particles in Saturated Porous Media under Flowing Condition2020

    • Author(s)
      杉本 卓也, 濱本 昌一郎, 西村 拓
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] イオン種および沈着時間が陽イオン交換反応を伴う土中コロイド輸送に与える影響2020

    • Author(s)
      荻田翔, 濱本昌一郎, 杉本 卓也, 西村 拓
    • Organizer
      2020年度農業農村工学会大会講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 飽和多孔質体における微細気泡および微粒子挙動に関する研究2020

    • Author(s)
      濱本昌一郎, 荻田翔, 二瓶直登, 竹村貴人, 西村拓
    • Organizer
      第71回コロイドおよび界面化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Nano-Bubble Retention in Saturated Porous Media under Different Solution Chemistry2019

    • Author(s)
      濱本昌一郎,杉本卓也,竹村貴人,西村拓,Bradford Scott
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Transport of Colloidal Particles in Saturated Toyoura Sand: Effects of Flow Rate on Importance of Electrostatic Repulsion2019

    • Author(s)
      杉本卓也,濱本昌一郎,西村拓,足立泰,小林幹佳
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] イオン強度およびイオン組成が多孔質体中のナノバ ブル挙動に与える影響2019

    • Author(s)
      濱本昌一郎,杉本卓也,竹村貴人,西村拓
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 飽和多孔質媒体中のコロイド粒子の沈着がナノバブ ル挙動に与える影響2019

    • Author(s)
      杉本卓也,濱本昌一郎,西村拓
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 封入不飽和状態における多孔質体中のコロイド移動 に関する研究2019

    • Author(s)
      大古湧之,濱本昌一郎,杉本卓也,西村拓
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effects of Deposited Colloidal Particles on Nano-Bubble Transport in Saturated Porous Media2019

    • Author(s)
      Sugimoto T., S. Hamamoto, and T. Nishimura
    • Organizer
      ASA, CSSA, and SSSA International Annual Meetings
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] pHおよびイオン強度が多孔質体中のナノバブル移動特性に与える影響2018

    • Author(s)
      濱本昌一郎,二瓶直登,竹村貴人,西村拓
    • Organizer
      日本マイクロ・ナノバブル学会第7回学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] イオン強度が多孔質体中のナノバブル挙動に与える影響2018

    • Author(s)
      濱本昌一郎,江尻哲英,二瓶直登,竹村貴人,西村拓
    • Organizer
      平成30年度農業農村工学会大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 多孔質媒体中における微細気泡およびコロイド粒子の同時移動に関する研究2018

    • Author(s)
      荻田翔,濱本昌一郎,竹村貴人,鈴木健一郎,西村拓
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Simultaneous Transport of Fine Bubbles and Colloidal Particles in Porous Media2018

    • Author(s)
      Ogita, S., S. Hamamoto, N. Nihei, and T. Nishimura
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] An experimental study of migration of CO2 included micro-nano bubble water in shallow aquifer2018

    • Author(s)
      Takemura, T., K. Suzuki, K. Okuzawa, and S. Hamamoto
    • Organizer
      AGU Fall Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of solution chemistry on nano bubbles transport in saturated porous media2018

    • Author(s)
      Hamamoto, S., A. Ejiri, T. Q. Dang, N. Nihei, T. Takemura, K. Suzuki, S. A. Bradford, and T. Nishimura
    • Organizer
      CS Fall 2018 National Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2023-01-30  

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