Breakage of flocs in liquid suspensions agitated by vibrating and rotating mixers
Experimental data are provided for the breakage of chalk aggregates in liquid suspensions agitated by rotating and vibrating mixers. The results are analysed using a mechanistic model of breakage which relates the pseudoequilibrium aggregate size to the energy dissipation rate in the stirred vessel....
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| Veröffentlicht in: | The Chemical engineering journal and the biochemical engineering journal 1996-04, Vol.62 (1), p.23-34 |
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| container_title | The Chemical engineering journal and the biochemical engineering journal |
| container_volume | 62 |
| creator | Shamlou, Parviz Ayazi Gierczycki, Andrzej T. Titchener-Hooker, Nigel J. |
| description | Experimental data are provided for the breakage of chalk aggregates in liquid suspensions agitated by rotating and vibrating mixers. The results are analysed using a mechanistic model of breakage which relates the pseudoequilibrium aggregate size to the energy dissipation rate in the stirred vessel. The analysis suggests that the growth and breakage of the chalk aggregates are reversible processes which lead to the formation of fractal aggregates with a dimensionality close to 2. Additionally, the breakage of aggregates in both the vibrating and the rotating mixers occurs by turbulent fluid stresses and is uniquely related to the energy dissipation rate in the vessel and the fractal dimensionality of the aggregates. |
| doi_str_mv | 10.1016/0923-0467(95)03054-9 |
| format | Article |
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The results are analysed using a mechanistic model of breakage which relates the pseudoequilibrium aggregate size to the energy dissipation rate in the stirred vessel. The analysis suggests that the growth and breakage of the chalk aggregates are reversible processes which lead to the formation of fractal aggregates with a dimensionality close to 2. 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| ispartof | The Chemical engineering journal and the biochemical engineering journal, 1996-04, Vol.62 (1), p.23-34 |
| issn | 0923-0467 1873-3220 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Applied sciences Breakage Chemical engineering Exact sciences and technology Flocs Liquid suspension Mathematical models Q1 Rotating mixers Sintering, pelletization, granulation Solid-solid systems Vibrating mixers |
| title | Breakage of flocs in liquid suspensions agitated by vibrating and rotating mixers |
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