Toward the development of sustainable soil and water engineering: an approach from cooperation of agricultural engineering and colloid science
| Project/Area Number |
23688027
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥21,320,000 (Direct Cost: ¥16,400,000、Indirect Cost: ¥4,920,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 土壌物理 / 水環境 / コロイド / 凝集分散 / 界面動電現象 / 農業工学 / 土壌 / 粘土 / 界面電気現象 / 沈降 / レオロジー / 固液分離 / 移動現象 / 凝集 / 分散 / 沈着 / 水理 / フロック |
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| Outline of Final Research Achievements |
The present study aimed at the clarification and development of applicability of basic theories, which are used to predict aggregation and dispersion of colloids, in several conditions related to practical agricultural and environmental issues like soil erosion and water purification. This study established methods to evaluate surface electric potential of colloidal particles from electrophoresis and to predict stability of colloid using the obtained surface electric potential. It became clear, however, that there remain theoretical shortages of aggregation kinetic in flow-fields. Additionally, the present work showed that complexes of oppositely charged polyelectrolytes significantly inhibit surface runoff and soil erosion under the influence of rainfall.
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Report
(5 results)
Research Products
(91 results)
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[Presentation] ため池問題とコロイド科学2014
Author(s)
小林 幹佳，山田健太
Organizer
平成26年度農業農村工学会大会講演会
Place of Presentation
新潟，朱鷺メッセ
Year and Date
2014-08-26 – 2014-08-28
Related Report
Invited
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