Fate and Transport of Colloid-Facilitated Contaminants in Soil

2008 Fiscal Year Final Research Report

• Project/Area Number: 18686039
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Geotechnical engineering
• Research Institution: Saitama University
• Principal Investigator: KAWAMOTO Ken Saitama University, 大学院理工学研究科, 准教授 (50292644)
• Research Collaborator: SAITO Hirotaka 東京農工大学, 共生科学技術研究科, 准教授 (70447514) ; MOLDRUP Per Aalborg University, Department of Chemistry, Biotechnology, and Environmental Engineering, Professor ; KOMATSU Toshiko 埼玉大学, 理工学研究科, 教授 (80034396)
• Project Period (FY): 2006 – 2008
• Keywords: 土壌汚染 / 地下水汚染 / 土壌コロイド / 吸着 / 移流分散

Research Abstract

現在,土壌・地下水汚染問題が国内外で顕在化している。本研究では,汚染物質を吸着して地盤内を長距離まで移動することが報告されている土壌コロイド(粒径が1μm以下)に注目し,土壌内での移動挙動解析や汚染物質(農薬や鉛)の吸着特性を,室内実験を中心に検討した。その結果,多孔質媒体内での土壌コロイドの移動特性は各付着係数を考慮した移流分散式で上手く表現できること等の成果が得られ,これらの成果は汚染物質のコロイド担体輸送が関与する諸問題(汚染領域の特定や汚染土壌の効率的な浄化工法の構築)に寄与するものと言える。

Research Products

• [Journal Article] Solute diffusivity in variably-compacted, variably-saturated volcanic ash soils (2009)
  • Author(s): Hamamoto, S., M.A.P. Samintha, A. Resurreccion, K. Kawamoto, S. Hasegawa, T. Komatsu, and P. Moldrup
  • Journal Title: Vadose Zone J. (掲載確定)
  • Peer Reviewed
• [Journal Article] Adsorption of herbicide (2,4-D) onto volcanic ash soil and soil colloidal particles at varying pH (2009)
  • Author(s): Zaman, M.M., T. Komatsu, K. Kawamoto, and P. Moldrup
  • Journal Title: J. of Nuclear Science and Application (掲載確定)
  • Peer Reviewed
• [Journal Article] Adsorption of 2,4-dichlorophenoxyacetic acid onto volcanic ash soils: Effects of pH and soil organic matter (2009)
  • Author(s): Ei Mon, E., T. Hirata, K. Kawamoto, S. Hiradate, T. Komatsu, and P. Moldrup
  • Journal Title: EnvironmentAsia 2(1) Pages: 1-9
  • Peer Reviewed
• [Journal Article] Transport and retention of colloid-sized materials in saturated porous media (2008)
  • Author(s): Chamindu, D.T.K.K., and K. Kawamoto
  • Journal Title: Proceedings of International Collaborative Graduate Symposium between Saitama University, Japan and University of Moratuwa, Sri Lanka Pages: 105-110
• [Journal Article] Measurements of distribution coefficients for pesticide onto soil and colloidal materials (2008)
  • Author(s): Hirata, T., E. Ei Mon, K. Kawamoto, and T. Komatsu
  • Journal Title: Proceedings of the International Exchange Symposium on Sustainable Infrastructure Development in Asia Pages: 102-107
• [Journal Article] Water repellency of aggregate size fractions of a volcanic ash soil (2007)
  • Author(s): Kawamoto, K., P. Moldrup, T. Komatsu, L.W. de Jonge, and M. Oda
  • Journal Title: Soil Sci. Soc. Am. J. 71 Pages: 1658-1666
  • Peer Reviewed
• [Journal Article] Adsorption mechanisms of an ionic pesticide onto kaolinite (2007)
  • Author(s): Sharma, A., K. Kawamoto, T. Komatsu, and P. Moldrup
  • Journal Title: Proceedings of the International Conference on Emerging Issues on Research and Development, Kathmandu, Nepal, Technical Session IV: Environment No. 6
• [Journal Article] 黒ぼく土カラムからの土壌コロイド流出解析 (2007)
  • Author(s): 川本 健, 斎藤広隆, Per Moldrup, 小松登志子
  • Journal Title: 埼玉大学紀要工学部 40 Pages: 28-35
• [Presentation] Adsorption-desorption behavior of 2,4-dichlorophenoxyacetic acid in a volcanic ash soil (2009)
  • Author(s): Ei Mon, E., A. Sharma, K. Kawamoto, and T. Komatsu
  • Organizer: Japanese Geoscience Union Meeting 2009
  • Place of Presentation: 幕張メッセ(千葉)
  • Year and Date: 2009-05-19
• [Presentation] Mobilization and leaching of colloidal particles in repacked Okinawa red-yellow soil (2009)
  • Author(s): Hirata, T., K. Kawamoto, D.T.K.K. Chamindu, and T. Komatsu
  • Organizer: Japanese Geoscience Union Meeting 2009
  • Place of Presentation: 幕張メッセ(千葉)
  • Year and Date: 2009-05-19
• [Presentation] Numerical modeling of mobilization and leaching of natural and water dispersible colloids in aggregated volcanic ash soil columns (2009)
  • Author(s): Chamindu, D.T.K.K., K. Kawamoto, H. Saito, P. Moldrup, and T. Komatsu
  • Organizer: Japanese Geoscience Union Meeting 2009
  • Place of Presentation: 幕張メッセ(千葉)
  • Year and Date: 2009-05-19
• [Presentation] Irreversibility of 2,4-dichlorophenoxyacetic acid sorption onto a volcanic ash soil : Effect of pH (2008)
  • Author(s): Ei Mon, E., K. Kawamoto, T. Komatsu, and P. Moldrup
  • Organizer: American Geophysical Union Fall Meeting 2008
  • Place of Presentation: San Francisco, U.S.A.
  • Year and Date: 2008-12-15
• [Presentation] Transport and straining of colloid-sized materials in saturated porous media: Experimental and numerical analysis (2008)
  • Author(s): Chamindu, D.T.K.K., K. Kawamoto, H. Saito, P. Moldrup, S. Bradford, and T. Komatsu
  • Organizer: 2008 ASA-CSSA-SSSA International Annual Meetings
  • Place of Presentation: Houston, U.S.A.
  • Year and Date: 2008-10-07
• [Presentation] Development of a predictive expression for soil water repellency based on soil organic carbon content (2008)
  • Author(s): Karunarathna, A.K., K. Kawamoto, P. Moldrup, L. W. de Jonge, and T. Komatsu
  • Organizer: 2008 ASA-CSSA-SSSA International Annual Meetings
  • Place of Presentation: Houston, U.S.A.
  • Year and Date: 2008-10-07
• [Presentation] Sorption and desorption behavior of 2,4-dichlorophenoxyacetic acid in kaolinite, volcanic ash soil and water dispersible colloid (2008)
  • Author(s): Hirata, T., E. Ei Mon, K. Kawamoto, and T. Komatsu
  • Organizer: International Symposium on Environmental Management: Hazardous-Environmental Management Toward Sustainability (iSEM 2008)
  • Place of Presentation: Nakorn Nayok, Thailand
  • Year and Date: 2008-09-22
• [Presentation] Characteristics and transport of volcanic ash soil colloids in saturated sand (2008)
  • Author(s): Nyamdavaa, G., D.T.K.K. Chamindu, K. Kawamoto, T. Komatsu, and P. Moldrup
  • Organizer: 10th International Summer Symposium, Japan Society of Civil Engineers
  • Place of Presentation: 土木学会館(東京)
  • Year and Date: 2008-09-18
• [Presentation] Measurements of distribution coefficients for pesticide onto soil and colloidal materials (2008)
  • Author(s): Hirata, T., E. Ei Mon, K. Kawamoto, and T. Komatsu
  • Organizer: International Exchange Symposium on Sustainable Infrastructure Development in Asia
  • Place of Presentation: Peradeniya, Sri Lanka
  • Year and Date: 2008-09-15
• [Presentation] Transport and retention of colloid-sized materials in saturated porous media: Experimental and numerical analysis (2008)
  • Author(s): Chamindu, K. Kawamoto, H. Saito, T. Komatsu, and P. Moldrup
  • Organizer: Third HYDRUS Workshop
  • Place of Presentation: 東京大学農学部(東京)
  • Year and Date: 2008-06-28
• [Presentation] Transport and straining of colloid-sized materials in saturated porous media (2008)
  • Author(s): Chamindu, D.K., K. Kawamoto, H. Saito, S.A. Bradford, P. Moldrup, and T. Komatsu
  • Organizer: Interfaces Against Pollution 2008
  • Place of Presentation: 京都大学(京都)
  • Year and Date: 2008-06-04
• [Presentation] Characterizing soil water repellency properties by soil organic carbon content, soil texture and sieved-size fractions (2008)
  • Author(s): Karunarathna, A.K., K. Kawamoto, P. Moldrup, T. Komatsu, and L.W. de Jonge
  • Organizer: Interfaces Against Pollution 2008
  • Place of Presentation: 京都大学(京都)
  • Year and Date: 2008-06-04
• [Presentation] Comparison of solute diffusivity between volcanic ash soils and normal mineral soils (2008)
  • Author(s): Samintha, M.A.P., S. Hamamoto, A.C. Resurreccion, K. Kawamoto, P. Moldrup, T. Komatsu, and S. Hasegawa
  • Organizer: Japanese Geoscience Union Meeting 2008
  • Place of Presentation: 幕張メッセ(千葉)
  • Year and Date: 2008-05-27
• [Presentation] Experimental and numerical analysis of colloid transport and straining in saturated sand (2008)
  • Author(s): Chamindu, D.K., K. Kawamoto, H. Saito, P. Moldrup, and T. Komatsu
  • Organizer: Japanese Geoscience Union Meeting 2008
  • Place of Presentation: 幕張メッセ(千葉)
  • Year and Date: 2008-05-27
• [Presentation] Estimation of unsaturated hydraulic properties in water repellent soil by time domain reflectometry coil probe measurements (2008)
  • Author(s): Karunarathna, A.K., K. Kawamoto, P. Moldrup, and T. Komatsu
  • Organizer: Soil Moisture Workshop 2008
  • Place of Presentation: 田町(東京)
  • Year and Date: 2008-03-27
• [Presentation] Transport and straining of colloid-sized materials in saturated sand (2007)
  • Author(s): Chamindu, D.K., K. Kawamoto, H. Saito, P. Moldrup, and T. Komatsu
  • Organizer: American Geophysical Union Fall Meeting 2007
  • Place of Presentation: San Francisco, U.S.A.
  • Year and Date: 2007-12-14
• [Presentation] Solute diffusivity of repacked volcanic ash soil: Effect of changes in pore size distribution due to soil compaction (2007)
  • Author(s): Samintha, M.A.P., A.C. Resurreccion, K. Kawamoto, T. Komatsu, and P. Moldrup
  • Place of Presentation: San Francisco, U.S.A.
  • Year and Date: 2007-12-14
• [Presentation] Soil colloids: Characteristics and transport in saturated sand (2007)
  • Author(s): Chamindu, D.T.K.K., K. Kawamoto, H. Saito, and T. Komatsu
  • Organizer: 第49回土壌物理学会シンポジウム
  • Place of Presentation: 九州大学西新プラザ(福岡)
  • Year and Date: 2007-10-13
• [Presentation] 土壌および抽出コロイドへのイオン性農薬の吸着特性 (2007)
  • Author(s): 平田 大貴, 川本 健, D.T.K.K. Chamindu, 小松 登志子
  • Organizer: 第49回土壌物理学会シンポジウム
  • Place of Presentation: 九州大学西新プラザ(福岡)
  • Year and Date: 2007-10-13
• [Presentation] Transport and retention of colloid-sized materials in saturated porous media (2007)
  • Author(s): Chamindu, D.T.K.K., K. Kawamoto, H. Saito, T. Komatsu, and P. Moldrup
  • Organizer: 9th International Summer Symposium, Japan Society of Civil Engineers
  • Place of Presentation: 横浜国立大学(神奈川)
  • Year and Date: 2007-09-18
• [Remarks] 研究成果報告書 川本 健,土壌汚染物質のマルチフェイズ輸送機構の解明,埼玉大学総合研究機構研究プロジェクト研究成果報告書,第6号,107-108,2008
• [Remarks] 川本 健,汚染物質のキャリヤーとしてのコロイド粒子の土壌内移動の解明,埼玉大学総合研究機構研究プロジェクト研究成果報告書,第5号,474-475,2007
• [Remarks] シンポジウム開催等 本研究成果の積極的な情報発信を目的とし,2008年と2009年の日本地球惑星科学連合において,「Subsurface Mass Transport, Material Cycle, and Environmental Assessment(地質媒体における物質移動,物質循環と環境評価)と題したインターナショナルセッションを企画した。