Understanding the mechanism of deposition of airborne particulates on solid surfaces: Modeling and analysis of particle behavior
| Project/Area Number |
26420761
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
Lenggoro Wuled 東京農工大学, 工学(系)研究科(研究院), 准教授 (10304403)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | エアロゾル / ナノ粒子 / 植物 / 葉 / サブミクロン / 大気環境 / 表面 / 静電気力 / 付着 / 輸送 / 基板 / 集積 / 移動現象 / 表面改質 |
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| Outline of Final Research Achievements |
It is well known that submicron particles (SMP) show high number concentration in the atmosphere. However, the mechanism of deposition of SMP from the atmosphere has not been clarified. We focused on "dynamic" side (generation, transport) and "static" side (surface). Metal and polymer were also used as model surface. The SMP concentration was measured in real time and the microscope-route after the collection was also observed.
Results: 1) Soot derived from combustion forms a hydrophobic or hydrophilic layer. 2) When there is no flow, SMP deposits with high efficiency. 3) Designed/developed a electro-static type collector without a suction pump; From Tokyo and Malaysia, we confirmed high concentration SMP. 4) Proposed a cleaning method for detaching SMP from the collection surface in water. 5) Water-soluble SMP was sprayed on Komatsuna (few weeks); The amount of SMP on the leaves decreased with time. There is a high possibility that the dissolved ions are absorbed into the leaves.
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Report
(5 results)
Research Products
(57 results)
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[Journal Article] Preliminary study on the measurement of the electrostatic charging state of PM2.5 collected on filter media2015
Author(s)
Okuda, T., Yoshida, T., Gunji, Y., Okahisa, S., Kusdianto, K., Gen, M., Sato, S., Lenggoro, I.W.
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Journal Title
Asian Journal of Atmospheric Environment
Volume: 9
Pages: 105-113
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Effects of long-term exposure to ammonium sulfate particles on growth and gas exchange rates of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica seedlings2014
Author(s)
M. Yamaguchi, Y. Otani, P. Li, H. Nagao, I. W. Lenggoro, A. Ishida, K. Yazaki, K. Noguchi, S. Nakaba, K. Yamane, K. Kuroda, Y. Sano, R. Funada, T. Izuta
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Journal Title
Atmospheric Environment
Volume: -
Pages: 493-500
DOI
Related Report
Peer Reviewed
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[Presentation] Transport and Assembly of Particles2015
Author(s)
Wuled Lenggoro
Organizer
2nd Padjadjaran International Physics Symposium and 3rd Japan Powder Technology Forum in Indonesia
Place of Presentation
Universitas Padjadjaran, Bandung/Sumedang, Indonesia
Year and Date
2015-09-02
Related Report
Int'l Joint Research / Invited
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