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- W2082795584 abstract "The batch settling behaviour of lightly flocculated red mud in inclined tubes has been investigated experimentally. A simple model is proposed which describes the behaviour observed for this suspension better than models at present available from the literature. The new model is based on the Nakamura-Kuroda equation into which a correction factor is introduced. For red mud, this factor is found to be a simple function of the angle of inclination and to be independent of solids concentration. This is in contrast to the various correction factors that have been proposed by other authors who have found strong and complex dependence on both solids concentration and angle of inclination. Thus, in the case of the suspension studied, the model represents considerable simplification of the description of inclined settling behaviour. The observed regimes of behaviour in inclined tubes are also discussed in the light of mechanisms observed in vertical settling for the same suspension. On a étudié expérimentalement le comportement relatif à la sédimentation discontinue, dans des tubes inclinés, d'une boue rouge légèrement floculée. On propose un modéle simple qui fournit une description du comportement de la suspension d'une meilleure manière que les modèles actuellement décrits dans la littérature technique. Le nouveau modéle est basé sur l'équation de Nakamura et Kuroda, dans laquelle on introduit un facteur de correction; dans le cas de la boue rouge, on a trouvé que ce facteur était une fonction simple de l'angle d'inclinaison et ne dépendait pas de la concentration en matières solides. Ce facteur contraste donc avec les autres facteurs de correction proposés antérieurement qui dépendent fortement et de façon complexe de la concentration en matières solides et de l'angle d'inclinaison. Ainsi, dans le cas de la suspension étudiée, le modèle présente une simplification considérable de la description du comportement d'une sédimentation impliquant une inclinaison. On discute également les diverses sortes de comportement de sédimentation observé dans des tubes inclinés, à la lumiére des mécanismes notés pour la sédimentation en orientation verticale de la měme suspension." @default.
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- W2082795584 date "1978-12-01" @default.
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- W2082795584 title "Batch sedimentation of red mud suspensions in an inclined tube" @default.
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- W2082795584 doi "https://doi.org/10.1002/cjce.5450560609" @default.
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