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Creation of high functional soil aggregate for wastewater treatment to enhance nitrogen treatment performance of soil to the maximum

Research Project

Project/Area Number 18K05925
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 41050:Environmental agriculture-related
Research InstitutionShimane University

Principal Investigator

Sato Kuniaki  島根大学, 学術研究院環境システム科学系, 准教授 (60533289)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords土壌式水質浄化 / 土壌団粒 / 硝化 / 脱窒 / 水質浄化 / 窒素浄化 / 硝酸 / アンモニア
Outline of Final Research Achievements

It has been proposed that the contact efficiency between soil and water is most important on a soil-based wastewater treatment system. To maximize the contact efficiency, we conceived the idea of the creation of artificial soil aggregate for wastewater treatment. The purpose of this study is to crate high-performance soil aggregates specialized in nitrification and denitrification and maximize the nitrogen purification function of the soil. Mixing materials with high ammonia and nitrate adsorption capacities with soil enabled to enhance the nitrogen purification capacity of the artificial soil aggregate. It was suggested that the selection of materials and operation management could regulate the consortia of microorganisms such as nitrifying and denitrifying bacteria.

Academic Significance and Societal Importance of the Research Achievements

従来の土壌を利用した水質浄化方式では,汚水を土壌に導入する方法の改良に過ぎなかった。これに対し,本研究では土壌団粒の物理化学的制御により,硝化や脱窒に寄与する生物性をもコントロールすることによって,水質浄化機能を高めることが可能であることを示した。共同体として発揮される土壌微生物群の活動の場を,土壌団粒によって人工的に創出しようとする発想は今までになかった。
土壌は世界中普遍に存在しており,土壌を利用した水質浄化法は低コストでローメンテナンスな技術である。土壌など地域に存在する資源を利用した水質浄化技術の発展は,世界規模での水環境問題の解決や地域資源循環型社会の構築に大きく寄与できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] 水質浄化を目的とした人工土壌団粒の創造2019

    • Author(s)
      佐藤邦明,安部香奈江,高松亜弥,岩島 範子,増永 二之
    • Journal Title

      環境技術

      Volume: 48 Issue: 3 Pages: 146-155

    • DOI

      10.5956/jriet.48.146

    • NAID

      130007654724

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities2019

    • Author(s)
      Sato Kuniaki、Wakatsuki Toshiyuki、Iwashima Noriko、Masunaga Tsugiyuki
    • Journal Title

      Applied and Environmental Soil Science

      Volume: 2019 Pages: 1-11

    • DOI

      10.1155/2019/1214368

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 硝化機能を強化した水質浄化用土壌団粒の創製2021

    • Author(s)
      佐藤邦明,永見謙介,増永二之
    • Organizer
      日本土壌肥料学会2021年度北海道大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 脱窒機能を強化した水質浄化用土壌団粒の創製2020

    • Author(s)
      佐藤邦明,小川拓真,平野誠,増永二之
    • Organizer
      日本土壌肥料学会2020年度岡山大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 窒素浄化に特化した水質浄化用高機能土壌団粒の創製2020

    • Author(s)
      佐藤邦明,岡本千尋,平野誠,増永二之
    • Organizer
      第54回日本水環境学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 窒素の溶脱抑制を目的とした炭化物による土壌改良2019

    • Author(s)
      佐藤邦明,熊崎大地,池田有希,増永二之
    • Organizer
      第29回廃棄物資源循環学会研究発表会
    • Related Report
      2018 Research-status Report
  • [Remarks] 土壌圏生態工学研究室

    • URL

      http://www.ipc.shimane-u.ac.jp/ecotech-soil/index.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report 2018 Research-status Report

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

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