Removal mechanisms in deep bed filtration

doi:10.1016/0009-2509(69)80064-3

Chemical Engineering Science

Volume 24, Issue 4, April 1969, Pages 717-729

https://doi.org/10.1016/0009-2509(69)80064-3 Get rights and content

Abstract

The particle transport mechanism operating during the filtration of dilute suspensions through deep granular beds has been considered on a dimensionless unit cell basis. It has been shown that the mechanism can be completely described by parameters representing the diffusional, gravitational, interception and impaction mechanism and by the Reynolds Number.

Experiments conducted on a multiple filter tube apparatus have shown that the behaviour of a kaolinite suspension can be represented by the gravitational and interception parameters and the Reynolds Number alone. An empiric correlation has been obtained and the significance of the terms is discussed.

Résumé

Le mécanisme de transport des particules qui se produit au cours de la filtration de suspensions diluées à travers des couches granuleuses profondes a été considéré sur la base d'une cellule sans dimensions. Il est montré que le mécanisme peut être entièrement décrit par des paramètres représentant les mécanismes de diffusion, de gravitation, d'interception et d'impact et par le nombre de Reynolds.

Les expériences menées sur un appareil à tubes filtres multiples ont montré que le comportement d'une suspension de kaolin peut être représenté par les paramètres de gravitation et d'interception et le seul nombre de Reynolds. Un accord empirique a été obtenu et la portée de ses termes est discutée.

Zusammenfassung

Der Mechanismus der Teilchenübertragung während der Filtration verdünnter Suspensionen durch tiefe granulierte Bette wurde auf der Grundlage eines dimensionslosen Einheitselementes untersucht. Es wurde gezeigt , dass der Mechanismus vollständig durch Parameter, die den Diffusions-, Gravitations-, Abfang- und Auftreff- Mechanismus darstellen, sowie durch die Reynolds Zahl beschrieben werden kann.

Versuche, die unter Anwendung eines Mehrfachfilterrohrgerätes durchgeführt wurden, haben bewiesen, dass das Verhalten von Kaolinit-Suspensionen durch die Gravitations und Abfang-Parameter und die Reynolds Zahl allein dargestellt werden kann. Es wurde eine empirische Beziehung erhalten, und die Bedeutung der Ergebnisse wird erörtert.

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¹: Present address: I.B.M. (U.K.) Ltd., London, W.1., England.

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Removal mechanisms in deep bed filtration

Abstract

Résumé

Zusammenfassung

J. sanit. Engng Div. Am. Soc. civ. Engrs

J. sanit. Engng Div. Am. Soc. civ. Engrs

Trans. Instn chem. Engrs

Proc. Soc. Wat. Treat. Exam

J. appl. Chem., U.S.S.R.

Izv. Akad. Nauk. uzbek SSR, Ser. Tekhn. N.

Effl. Wat. Treat J.

Effl. Wat. Treat. J.