| Project/Area Number |
07651149
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
資源開発工学
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| Research Institution | Kyushu University |
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Principal Investigator |
HARA Tsuyoshi Faculty of Engineering, Assistant, 工学部, 助手 (20159099)
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| Co-Investigator(Kenkyū-buntansha) |
FURUYAMA Takashi Faculty of Engineering, Assistant, 工学部, 教務員 (90284546)
NONAKA Moriyasu Faculty of Engineering, Assistant, 工学部, 教務員 (60271102)
MORI Sukeyuki Faculty of Engineering, Professor, 工学部, 教授 (90037755)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Zeta Potential / Suspended Fine Particles / Electro-Phoresis / Flocculation and Dispersion Phenomena / Statistic Treatment |
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| Research Abstract |
It is important to determine the zeta potential of mineral particles in suspension for the flocculation and dispersion phenomena which have been applied with advantage in mineral processing and in a number of solid/liquid separation process. For this object, the applicants have studied the measurement of zeta-potential of pure minerals with a rectangular micro-electrophoresis cell. In this study, further investigations on the measurements of zeta-potential of mixed quartz and fluorite particles, which are negatively and positively charged respectively, have been carried out to simulate a real measurement of zeta-potential in waste water treatment.
In the present experiment, it was difficult to measure the velocities of flocs and particles in the former methods because of sedimentation of flocs and the appearance of particles which moved to opposite direction. Therefore, the applicants soleved these problems by the improvement of the measurement and analysis : the number of observd particles to measure the velocities were largely increased in each level and the obtained data were analyzed statistically. The improved method was used with success to measure the zeta-potential of mixed minerals in waste water treatment.
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