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DEVELOPMENT OF A METHOD FOR REMOVING NITRATE DIRECTLY FROM SOIL PERCOLATE BY INTRODUCING LOW-PERMEABLITY-LAYER AND SULFUR.

Research Project

Project/Area Number 11558074
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 環境保全
Research InstitutionKANAZAWA UNIVERSITY

Principal Investigator

KAWANISHI Takuya  KANAZAWA UNIV, GRAD. SCHOOL SCI. & ENG, ASSOC. PROFESSOR, 自然科学研究科, 助教授 (80234087)

Co-Investigator(Kenkyū-buntansha) FUKUURA Kiyoshi  MAEZAWA INDUSTRIES, INC. TECHNICAL SECT. MAANAGER, 土壌環境部, 技術課長(研究職)
HANAKI Keisuke  UNIV. TOKYO, GRAD. SCHOOL ENG. PROFESSOR, 大学院・工学系研究科, 教授 (00134015)
HAYASHI Yoshishige  KANAZAWA UNIV DEPT. CHEM. CHEM ENG, PROFESSOR, 工学部, 教授 (60019750)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥9,700,000 (Direct Cost: ¥9,700,000)
Fiscal Year 2001: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2000: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1999: ¥3,700,000 (Direct Cost: ¥3,700,000)
KeywordsNITRATE / REMOVAL / SOIL / DENITRIFICATION / SULFUR / PERMEABILITY / GAS DIFFUSION / ANOXIC / 地下水 / 浸透水 / 脱窒 / 拡散係数 / 硫黄脱窒 / 透水係数 / 窒素除去 / 保水性 / 酸素拡散速度 / 窒素 / 酸素供給 / モデル
Research Abstract

The objective of this research is to develop a method for removing nitrate directly from soil percolate. We construct a low permeability layer (LPL) below the level where nitrogen is sufficiently nitrified. By "low permeability layer" we mean the soil layer whose saturated hydraulic conductivity is approximately equal to the infiltration rate of the site. As the water percolates in the soil, LPL becomes saturated and acts as a barrier to oxygen supply. In addition, we put electron donor for denitrification, such as sulfur, etc. below the LPL. Thus, below LPL, oxygen concentration will be suppressed and there exist electron donors, then denitrification will occur. Two soil columns of 0.15 m in diameter and 0.8 m in height are prepared. For the one column (LPL column) we set LPL whose saturated hydraulic conductivity is approximately 0.1 m d^<-1>(20℃) at depth from 0.16 to 0.32 m. Below the LPL, sulfur (electron donor) and calcium carbonate was added to the soil in a (mass) ratio of S : CaC0_3 : soil = 5 : 5 : 90, at depths from 0.32 to 0.48 m. For the other (control) column, LPL is not prepared but sulfur and calcium carbonate was added to the soil in the same ratio at the same depths. Potassium nitrate solution of 20 mg-N∫^1 was supplied from the top of the column continuously at several different rates.
In a 3-month experiment, LPL column revealed apparent nitrate removal efficiency of 0.79, 0.84 and 0.94 for the water feed rates of 0.025, 0.05 and 0.1 m d^<-1>, respectively. Thus, we concluded this Low Permeability Layer Oxygen Barrier method really works.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] Toda, H., Y.Mochizuki, T.Kawanishi, H.Kawashima: "Denitrification in shallow groundwater in a coastal agricultural area in Japan"Nutrient Cycling in Agroecosytems. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dadang Suhender, 川西琢也, 清水宣明, 林良茂: "炭素電極を用いた電気分解による水素を利用した脱窒反応装置の速度解析"水環境学会誌. 24. 454-458 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, T., Talukudar, MMR., Wu, T., Takeyama, T., Kawanishi, T., Shimizu N.: "Increased activity of Chromobacterium viscosum lipase in AOT reverse micelles in the presence of short chain methoxypolyethylene glycol"Journal of Chemical Technology and Biotechnology. 76. 844-850 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] HASEGAWA K., HANAKI, T.MATSUO, S.HIDAKA: "Nitrous Oxide from the Agricultural Water System Contaminated with High Nitrogen"Chemosphere-Global Change Science. 2. 335-345 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 川西琢也, 林 良茂, 戸田任重, 川島博之: "休耕田土壌・植生ポットによる硝酸態窒素除去-浸透方式と表面流方式の違い,植生の有無の影響-"システム農学. 16. 79-82 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, Y., Yazaki, S., Kawanishi, T., Shimizu, N., Furukawa T.: "An efficient ethanol concentration process by vapor permeation through asymmetric polyimide"Journal of Membrane Science. 177. 233-239 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 長谷川聖, 花木啓祐, 松尾友矩: "土壌中の硫黄脱窒過程における硝酸態窒素除去及び亜酸化窒素生成の評価"環境工学研究論文集. 36. 465-476 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, T., Sugiyama, S., Kawanishi, T., Shimizu, N.: "Kinetics of sorption and permeation of water in glassy polyimide"Journal of Membrane Science. 156. 11-16 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hossain, M.J., Takeyama, T., Hayashi, T., Kawanishi, T., Shimizu, N., Nakamura, R.: "Enzymatic activity of Chromobacterium viscosum lipase in an AOT/Tween 85 mixed reverse icellar system"Journal of Chemical Technology and Biotechnology. 74. 423-428 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Matuo, K.Hanaki, S.Takizawa, H.Satoh (eds.): "Advances in Water and Wastewater Treatment Technology -Molecular Technology, Nutrient Removal, Sludge Reduction, and Environmental Health"Elsevier, The Netherlands. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Toda, H,. Y. Mocliizuki, T. Kawanishi, H. Kawashima: "Denitrificalion in shallow groundwater in a coastal agricultural area in Japan"Nutrient Cycling in Agroecosystems. in press.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dadang Suhendar, Takuya Kawanishi, Nobuaki SHIMIZU, Yoshishige HAYASHl: "Nitrate removal rate in a continuous column denitrification reactor using hydrogen generated by electrolysis with carbon anodes and stainless cathodes"J.Japan Soc. Water Env.. Vol. 24. 454-458 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, Y., Talukudar, MMR., Wu, T., Takeyama, T., Kawanishi, T., Shimizu N.: "Increased activity of Chromobacterium viscosum lipase in AOT reverse micelles in the presence of short chain methoxypolyethylene glycol"Journal of Chemical Technology and Biotechnology. Vol. 76. 844-850 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] HASEGAWA, K, K. HANAKI, T. MATSUO, S. HIDAKA: "Nitrous Oxide from the Agricultural Water System Contaminated with High Nitrogen"Chemosphere-Global Change Science. Vol.2. 335-345 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawanishi, T., Hayashi, Y., Joda, H., Kawashima, H.: "Nitrate removal by fallow paddy soil and plants: effect offlow and existence of vegetation"J. Japanese Agricultural Systems Soc. Vol. 16. 79-82 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, Y., Yuzaki, S., Kawanishi, T., Shimizu, N., Furukawa T: "An efficient ethanol concentration process by vapor permeation through asymmetric polyimide membrane"Journal of Membrane Science. Vol. 177. 233-239 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hayashi, Y., Sugiyama, S., Kawanishi, T., Shimizu, N.: "Kinetics of sorption and permeation of water in glassy polyimide"Journal of Membrane Science. Vol. 177. 233-239 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hossain, M.J., Takeyama, T., Hayashi, Y., Kawanishi, T., Shimizu, N., Nakamura, R.: "Enzymatic activity of Chromobacterium viscosum lipase in an AOT/Tween 85 mixed reverse icellar system"J. Chem. Tech. Biotechnol. Vol. 74. 423-428 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Dadang Suhendar, 川西琢也, 清水宣明, 林良茂: "炭素電極を用いた電気分解による水素を利用した脱窒反応装置の速度解析"水環境学会誌. 24・7. 454-458 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Toda, H., Y.Mochizuki, T.Kawanishi, H.Kawashima: "Denitrification in shallow ground water in a coastal agricultural area in Japan"Naturient Cycling in Agrocosystems.

    • Related Report
      2001 Annual Research Report
  • [Publications] Hayashi, Y., Talukudar, MMR 他4名: "Increased activity of Chromabocterium lipase in AOT reverse micells in the presence of short chain methoxypolythy leneglicol"Journal of Chemical Technology and Biotechnology. 76. 844-850 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hasegawa, K., Hanaki, K: "Advances in Water and Waisewater Treatment Technologies"Elsevier. 12 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 川西琢也,林良茂 他2名: "休耕土壌・植生ポットによる硝酸態窒素除去"システム農学. 16,1. 79-82 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.KAWANISHI,Y.HAYASHI (MJ.HOSSAIN): "Enzymatic activity of Chromobacterium viscosum lipase...."Journal of Chemical Technology and Biotechnology. 74. 423-428 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.HAYASHI,T.KAWANISHI (Y.HAYASHI): "Kinetics of sorption and permeation of water in glassy polyimide"Journal of Membrane Science. 156. 11-16 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 川西琢也,林良茂 (川西琢也): "休耕田土壌・植生ポットによる硝酸態窒素除去"システム農学. 16(1). 79-82 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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