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Elucidating adsorption mechanism of super-fine powdered activated carbon by isotope-imaging

Research Project

Project/Area Number 23656323
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Civil and environmental engineering
Research InstitutionHokkaido University

Principal Investigator

MATSUI Yoshihiko  北海道大学, 大学院・工学研究院, 教授 (00173790)

Co-Investigator(Kenkyū-buntansha) MATSUSHITA Taku  北海道大学, 大学院・工学研究院, 准教授 (30283401)
Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords用排水システム / 環境技術 / 環境材料 / 土木環境システム / 反応・分離工学 / 水資源 / 土木環境システム / 反応・分離工
Research Abstract

Geosmin and 2-methylisoborneol (MIB) adsorption capacity dependency on activated carbon particle size was investigated for two carbons. By using the isotope microscope system and carbon particles loaded with deuterium-doped MIB and geosmin, isotopic maps for deuterium/hydrogen ratio as a maker of MIB and geosmin were obtained. For a carbon in which the adsorption capacity to adsorb MIB and geosmin increased with decreasing carbon particle size, deuterium/hydrogen ratio was high on the exterior region close to the particle outer-surface compared with inner region. The result indicated the higher MIB and geosmin adsorption capacities on super-fine powdered activated carbon than on normal-size powdered activated carbon is explained by the shell adsorption mechanism. When MIB and geosmin adsorbs in internal pores of activated carbon particles, adsorption competition between natural organic matter (NOM) and these compounds does not increase when NOM uptake increased due to carbon size reduction.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2013 2011

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results)

  • [Journal Article] Natural organic matter that penetrates or does not penetrate activated carbon and competes or does not compete with geosmin2013

    • Author(s)
      Matsui, Y., Nakao, S., Yoshida, T., Taniguchi, T. and Matsushita, T
    • Journal Title

      Separation and Purification Technology

      Volume: 113 Pages: 75-82

    • NAID

      120005316997

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Presentation] Enhanced Removal of 2-MIB and Geosmin by Super-fine PAC: Evidence of Shell Adsorption2013

    • Author(s)
      Matsui, Y.
    • Organizer
      10th IWA Symposium on Off-Flavours in the Aquatic Environment
    • Place of Presentation
      National Cheng Kung University, Tainan, Chinese Taiwan
    • Related Report
      2012 Annual Research Report
  • [Presentation] Comparison of 2-methylisoborneol adsorption capacities on super-powdered and powdered activated carbonInternational Water Association2011

    • Author(s)
      Matsui, Y., Taniguchi, T., Nakao, S., MatsushitaT. and Shirasaki, N
    • Organizer
      9th IWA Symposium on Off-Flavours in the Aquatic Environment
    • Place of Presentation
      Robert Gordon University, Aberdeen, UK
    • Year and Date
      2011-08-12
    • Related Report
      2012 Final Research Report
  • [Presentation] Enhanced Removal of 2-MIB and Geosmin by Super-fi ne PAC: Evidence of Shell Adsorption2011

    • Author(s)
      Matsui, Y., Nakao, S., Taniguchi, T., Shirasaki, N.,and Matsushita, T
    • Organizer
      10th IWA Symposium on Off-Flavours in the Aquatic Environment
    • Place of Presentation
      National Cheng Kung University, Tainan, Chinese Taiwan
    • Related Report
      2012 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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