• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

New development on carrier micro-encapsulation for prevending acid mine drainage formation

Research Project

Project/Area Number 17H03503
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Earth system and resources engineering
Research InstitutionHokkaido University

Principal Investigator

Hiroyoshi Naoki  北海道大学, 工学研究院, 教授 (50250486)

Co-Investigator(Kenkyū-buntansha) 伊藤 真由美  北海道大学, 工学研究院, 准教授 (10339690)
タベリン カーリット  北海道大学, 工学研究院, 助教 (60626125)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Keywords酸性鉱山廃水 / 黄鉄鉱 / カテコール / 鉄 / チタニウム / アルミニウム / 保護被膜 / 酸化還元 / チタン / 錯体 / 被膜 / 電気化学 / 鉱山酸性廃水 / カテコール錯体 / 薄膜形成 / 金属イオン / 鉄イオン
Outline of Final Research Achievements

Carrier micro-encapsulation (CME) was studied as a new method to suppress oxidative dissolution of pyrite, causing the formation of acid mine drainage. A novel technique of CME using Fe or Al ions, which are easy to be obtained at mine site, was proposed and its suppressive effects on pyrite dissolution was confirmed based on electrochemical studies and surface analysis. When Ti and Fe-catecholate complexes coexisted, a high acid resistant protective coating was formed on pyrite surface, and it suppressed cathodic reduction of oxygen on the mineral surface and pyrite oxidation.

Academic Significance and Societal Importance of the Research Achievements

炭鉱や金属の鉱山開発に際して、鉱床中の黄鉄鉱が露出して空気(酸素)や水に曝されて酸化溶解すると、硫酸が生成して共存鉱物から有害な重金属類を溶かし出す。このようにして発生する酸性鉱山廃水は,対策が講じられない場合には鉱山周辺の水や土壌を汚染して深刻な環境問題を引き起こす。ひとたび酸性鉱山廃水が発生すると中和処理などの水処理を鉱山の休廃止後も長年に渡って継続する必要があり,大きな経済的損失を招く。本研究は、鉱山酸性廃水発生の原因となる黄鉄鉱の酸化溶解反応を抑制する新しい方法を提案して、その効果を検証しており、鉱山開発に伴う環境問題を解決し、鉱物資源の持続的な供給システムを構築することに寄与する。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (15 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 8 results)

  • [Int'l Joint Research] The University of New South Wales(オーストラリア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Suppressive effects of ferric-catecholate complexes on pyrite oxidation2019

    • Author(s)
      X. Li, N. Hiroyoshi, C.B. Tabelin, K. Naruwa, C. Harada, M. Ito
    • Journal Title

      Chemosphere

      Volume: 214 Pages: 70-78

    • DOI

      10.1016/j.chemosphere.2018.09.086

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Suppression of pyrite oxidation by ferric-catecholate complexes: An electrochemical study2019

    • Author(s)
      Li Xinlong、Gao Min、Hiroyoshi Naoki、Tabelin Carlito Baltazar、Taketsugu Tetsuya、Ito Mayumi
    • Journal Title

      Minerals Engineering

      Volume: 138 Pages: 226-237

    • DOI

      10.1016/j.mineng.2019.05.005

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Carrier-microencapsulation using Al-catecholate complex to suppress arsenopyrite oxidation: Evaluation of the coating stability under simulated weathering conditions2019

    • Author(s)
      Seno Kensuke、Park Ilhwan、Tabelin Carlito、Magaribuchi Kagehiro、Ito Mayumi、Hiroyoshi Naoki
    • Journal Title

      MATEC Web of Conferences

      Volume: 268 Pages: 06002-06002

    • DOI

      10.1051/matecconf/201926806002

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Formation of surface protective coatings on arsenopyrite using Al-catecholate complex and its mode of inhibition of arsenopyrite oxidation2019

    • Author(s)
      Park Ilhwan、Tabelin Carlito、Inano Hiroyuki、Seno Kensuke、Higuchi Kazuki、Ito Mayumi、Hiroyoshi Naoki
    • Journal Title

      MATEC Web of Conferences

      Volume: 268 Pages: 06015-06015

    • DOI

      10.1051/matecconf/201926806015

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Simultaneous suppression of acid mine drainage formation and arsenic release by carrier-microencapsulation using aluminum-catecholate complexes2018

    • Author(s)
      I. Park, C.B. Tabelin, K. Seno, S. Jeon, M. Ito and N. Hiroyoshi
    • Journal Title

      Chemosphere

      Volume: In press Pages: 414-425

    • DOI

      10.1016/j.chemosphere.2018.04.088

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Suppression of the release of arsenic from arsenopyrite by carrier-microencapsulation using Ti-catechol complex2018

    • Author(s)
      Park Ilhwan、Tabelin Carlito Baltazar、Magaribuchi Kagehiro、Seno Kensuke、Ito Mayumi、Hiroyoshi Naoki
    • Journal Title

      Journal of Hazardous Materials

      Volume: 344 Pages: 322-332

    • DOI

      10.1016/j.jhazmat.2017.10.025

    • NAID

      120006796026

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Suppression of the release of arsenic from arsenopyrite by titanium- and aluminum-based carrier-microencapsulation2018

    • Author(s)
      Ilhwan Park, Carlito Baltazar Tabelin, Kensuke Seno, Kagehiro Magaribuchi, Mayumi Ito, Naoki Hiroyoshi
    • Organizer
      Geo-Environmental Engineering 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of electrochemical properties of various metal-catecholate complexes for carrier-microencapsulation2018

    • Author(s)
      Xinlong Li, Chie Harada, Ilhwan Park, Naoki Hiroyoshi, Carlito Baltazar Tabelin, Mayumi Ito
    • Organizer
      Geo-Environmental Engineering 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Redox Properties of Metal Complexes with Catechol and its Derivatives2017

    • Author(s)
      Xinlong Li, Kosuke Naruwa, Naoki Hiroyoshi, Carlito Baltazar Tabelin, Mayumi Ito
    • Organizer
      MMIJ&EARTH 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Carrier-microencapsulation using Al-catechol complex for suppressing arsenic release from arsenopyrite2017

    • Author(s)
      Ilhwan Park, Kensuke Seno, Kagehiro Magaribuchi, Carlito Baltazar Tabelin, Mayumi Ito, Naoki Hiroyoshi
    • Organizer
      MMIJ&EARTH 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of Electrochemical Properties of Various Metal-catecholate Complexes for Carrier-microencapsulation2017

    • Author(s)
      Xinlong Li, Chie Harada, Ilhwan Park, Naoki Hiroyoshi, Carlito B. Tabelin and Mayumi Ito
    • Organizer
      17th Global Joint Seminar on Geo-Environmental Engineering
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EFFECTS OF ADDITIONAL ORGANIC FUNCTIONAL GROUPS ON THE REDOX PROPERTIES OF METAL-CATECHOLATE COMPLEXES2017

    • Author(s)
      Li, X., Naruwa, K., Tabelin, C.B., Ito, M. and Hiroyoshi, N.
    • Organizer
      1st International KAMPAI Symposium on Sustainable Management of Resources and Environment in the 21st Century
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Suppressive effects of aluminum-catechol complexes on the release of arsenic from arsenopyrite2017

    • Author(s)
      Ilhwan Park, Kensuke Seno, Calrito Baltazar Tabelin, Mayumi Ito, Naoki Hiroyoshi
    • Organizer
      1st International KAMPAI Symposium on Sustainable Management of Resources and Environment in the 21st Century
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of aluminum-catechol complexes on pyrite oxidation2017

    • Author(s)
      Ilhwan Park, Carlito Baltazar Tabelin, Kensuke Seno, Kagehiro Magaribuchi, Mayumi Ito, Naoki Hiroyoshi
    • Organizer
      Effects of aluminum-catechol complexes on pyrite oxidation
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi