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Innovation of Coupled Bioelectrochemical System to Restore Contaminated Sea bottom Sediment

Research Project

Project/Area Number 19F19056
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Review Section Basic Section 22060:Environmental systems for civil engineering-related
Research InstitutionTohoku University

Principal Investigator

西村 修  東北大学, 工学研究科, 教授 (80208214)

Co-Investigator(Kenkyū-buntansha) CAO XIAN  東北大学, 工学(系)研究科(研究院), 外国人特別研究員
Project Period (FY) 2019-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2020: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2019: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywords生物電気化学的システム / 微生物燃料電池 / 生物膜電極法
Outline of Research at the Start

本研究提案は、SMBC(堆積物微生物燃料電池)とBER(生物膜電極法)を結合して有機汚濁が進み有害化学物質の蓄積する海底堆積物の浄化に応用するものである。内湾などの閉鎖性水域は底質環境の悪化が進んでおり,我が国のみならず世界的に共通する問題である.しかし底質環境の代表的な改善技術である浚渫や覆砂は高コストや効果の持続性等の問題を抱えており、新たな方法が熱望されている。本研究で開発する技術は、SMBCにより有機物を分解して発生する電気エネルギーを、BERに供給して分解効率を高めるもので、技術原理的には海底の原位置にて堆積物を改善することができ,革新的な底質改善技術となる可能性を秘めている.

Outline of Annual Research Achievements

本研究では,連続フロー微生物燃料電池(MFC)システムを構築し,難分解性有機物を含有する廃水を400日間処理した.400日間の運転後のMFCの電気的特性と,長期および短期の運転後のMFCの除去効率を,特に共基質濃度の観点から分析した.MFCシステムの出力は動作時間の増加とともに586から330mVに減少したが,MFCの除去効率は共基質濃度を低下しても短期運転後と比較して長期運転後でも安定していた.分解生成物の分析から,MFCの長期運転における生成物が低濃度で存在することが示され,微生物群集解析により,MFC中の有機物の分解に関連する微生物の相対的な存在量は,長期間の操作後に増加し,発電に関連する微生物は減少することが明らかになった.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (10 results)

All 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (8 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 8 results)

  • [Int'l Joint Research] 東南大学(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 東南大学(中国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure2021

    • Author(s)
      Cao Xian、Wang Hui、Long Xizi、Nishimura Osamu、Li Xianning
    • Journal Title

      Science of The Total Environment

      Volume: 754 Pages: 142454-142454

    • DOI

      10.1016/j.scitotenv.2020.142454

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Simultaneous enhancement of heavy metal removal and electricity generation in soil microbial fuel cell2020

    • Author(s)
      Zhang Jingran、Cao Xian、Wang Hui、Long Xizi、Li Xianning
    • Journal Title

      Ecotoxicology and Environmental Safety

      Volume: 192 Pages: 110314-110314

    • DOI

      10.1016/j.ecoenv.2020.110314

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relationship between bioelectrochemical copper migration, reduction and electricity in a three-chamber microbial fuel cell2020

    • Author(s)
      Wang Hui、Long Xizi、Zhang Jingran、Cao Xian、Liu Shentan、Li Xianning
    • Journal Title

      Chemosphere

      Volume: 241 Pages: 125097-125097

    • DOI

      10.1016/j.chemosphere.2019.125097

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preparation of needle-like Fe3O4/Fe2O3 nanorods on stainless steel plates to form inexpensive, high-performance bioanodes2019

    • Author(s)
      Long Xizi、Cao Xian、Wang Chuqiao、Liu Shentan、Li Xianning
    • Journal Title

      Journal of Electroanalytical Chemistry

      Volume: 855 Pages: 113497-113497

    • DOI

      10.1016/j.jelechem.2019.113497

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Azo Dye Degradation and Differences Between the Two Anodes on the Microbial Community in a Double-Anode Microbial Fuel Cell2019

    • Author(s)
      Long Xizi、Cao Xian、Liu Shentan、Nishimura Osamu、Li Xianning
    • Journal Title

      Water, Air, & Soil Pollution

      Volume: 230 Issue: 11 Pages: 113497-113503

    • DOI

      10.1007/s11270-019-4325-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell2019

    • Author(s)
      Long Xizi、Cao Xian、Song Hailiang、Nishimura Osamu、Li Xianning
    • Journal Title

      Bioresource Technology

      Volume: 285 Pages: 121395-121395

    • DOI

      10.1016/j.biortech.2019.121395

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The kinetics of the simultaneous decolorization and desulfurization of azo dye wastewater in a microbial fuel cell2019

    • Author(s)
      Long Xizi、Wang Chuqiao、Cao Xian、Li Xianning
    • Journal Title

      DESALINATION AND WATER TREATMENT

      Volume: 153 Pages: 112-120

    • DOI

      10.5004/dwt.2019.24003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhancement of azo dye degradation and power generation in a photoelectrocatalytic microbial fuel cell by simple cathodic reduction on titania nanotube arrays electrode2019

    • Author(s)
      Long Xizi、Wang Hui、Wang Chuqiao、Cao Xian、Li Xianning
    • Journal Title

      Journal of Power Sources

      Volume: 415 Pages: 145-153

    • DOI

      10.1016/j.jpowsour.2019.01.069

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2019-05-29   Modified: 2024-03-26  

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