2014 Fiscal Year Final Research Report
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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| Keywords | 土壌物理 / 水環境 / コロイド / 凝集分散 / 界面動電現象 |
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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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| Free Research Field |
農業工学
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