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Accelerated Stabilization of Waste Landfill by Activation of Microbial Functions

Research Project

Project/Area Number 12450213
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil and environmental engineering
Research InstitutionOsaka University

Principal Investigator

FUJITA Masanori  Osaka University, Dept. of Environmental Engineering, Professor, 大学院・工学研究科, 教授 (70029289)

Co-Investigator(Kenkyū-buntansha) IKE Michihiko  Osaka University, Dept. of Environmental Engineering, Associate Professor, 大学院・工学研究科, 助教授 (40222856)
立田 真文  大阪大学, 大学院・工学研究科, 助手 (70314367)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥9,700,000 (Direct Cost: ¥9,700,000)
Fiscal Year 2002: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2001: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2000: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsWaste Landfill / Accelerated Stabilization / Bioventing / Circulation of Leachate / Hazardous Gas / Eco-toxicity / Degradable Plastics / 廃棄物理立処分場 / バイオベンディング / 有害ガス / ビオリーチング / 重金属類 / 浸出液循環 / 生分解 / 毒性評価
Research Abstract

Experimental studies were carried out to evaluate the feasibility of application of bioventing techniques, which is one of the in situ bioremediation techniques for clean-up of contaminated soil, to accelerate the stabilization of waste disposal landfill. Pilot- and/or lab-scale landfill reactor studies indicated that the application of bioventing, i.e. feeding of air to the waste pile, successfully transformed the condition of the waste pile to aerobic/microaerobic from anaerobic, considerably stimulated indigenous aerobic bacterial populations, and enhanced aerobic degradation of the wastes. The necessity of proper control of the moisture content of the waste pile (approx. 50 %) by circulating the leachate was suggested in order to stimulate the metabolic activities of aerobic bacterial populations. The aerobic degradation of wastes enhanced the waste settlement and also effectively improved quality of the leachate and the landfill gas. Especially degradation of the volatile matter in the waste pile, removal of COD, and nitrification of ammonium in the leachate were improved by the application of bioventing coupled with circulation of the leachate. Ecotoxicological assays of the leachate clarified that the application of bioventing could considerably reduce the mutagenicity and estrogenicity of the leachate compared with the traditional anaerobic landfill. The bioventing was also effective for accelerating the biodegradation of some degradable plastics including PHB and starch-blend plastics. It may be concluded that the application of bioventing to the waste landfill can enhance the landfill stabilization and greatly shoten the period that is required for the landfill management. It may also contribute to the reduction of the possible risks cause by the waste landfill. Aerobic landfill operation like bioventing application could be an attractive counter measure for overcoming major problems of the existing landfill sites.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 石垣智基: "ベトナム・ハノイ市における廃棄物最終処分場浸出水の汚染実態調査ならびに促進酸化による有機物および色度除去法の検討"水環境学会誌. 25巻・11号. 629-634 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishigaki T.et al.: "Advanced oxidation treatment of the leachate collected from waste disposal landfill site in Hanoi Vietnam -application and its effects"Proceedings of Asian Waterqual 2001. Vol.1. 975-980 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishigaki T.et al.: "Abundance of polymer degrading microorganisms in a sea-based solid waste disposal site"J. Basic Microbiology. Vol.40, No.3. 177-186 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishigaki, T et al.: "Field survey and advanced oxidation treatment of waste landfill leachate in Hanoi, Vienam (in Japanese)"Mizu-Kankyo-Gakkaishi. Vol. 25, No. 11. 629-634 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishigaki T et al.: "Advanced oxidation treatment of the leachate collected from waste disposal landfill site in Hanoi, Vietnam -application and its effets"Proceedings of Asian Waterqual 2001. 1. 975-980 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ishigaki T et al: "Abundance of polymer degrading micro-organisms in a sea-based solid waste disposal site"J. Basic Microbiology. Vol. 40, No. 3. 177-186 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 石垣智基, 立田真文, LV Chieu, CT Ha, PH Viet, 池道彦, 藤田正: "ベトナム・ハノイ市における廃棄物最終処分揚浸出水の汚染実態調査ならびに促進酸化による有機物および色度除去法の検討"水環境学会誌. 25巻・11号. 629-634 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ishigaki, T et al.: "Advanced oxidation treatment of the Leachate collected from waste disposal landfill site in Hanoi, Vietnam-application and its effects"Proceedings of Asian Waterqual 2001. I. 975-980 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 石垣,菅野,中西,池,藤田: "好気性埋立処分場モデルリアクターにおける生分解性プラスチックフィルムの分解"日本水処理生物学会誌. 別巻・第20号. 113 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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