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Filtration II – Using a Plate-and-Frame Filter

  • Marie-Laure Lameloise
Part of the Integrating Safety and Environmental Knowledge Into Food Studies towards European Sustainable Development book series (ISEKI-Food, volume 5)

Objectives and Learning Outcomes

  1. 1.

    Understand the operation of a plate-and-frame-filter press.

     
  2. 2.

    Verify cake filtration laws at constant flow rate, at constant pressure.

     
  3. 3.

    Learn how to size a filter through measurement of cake specific resistance on a laboratory filtration cells.

     

Introduction

Cake filtration is adapted to filtration of solid–liquid suspension containing more than 0.1% particles (w/w). The particles accumulating on the surface of a cloth or sheet, form a porous layer or "cake" which becomes the main filtering medium (this is assumed to be a non-compressible cake).

When a fluid passes through a porous medium, the relationship between pressure drop, ΔP (Pa), and flow rate, dV/ dt (m 3s –1), can be described by Darcy–Carman's law:
$$\Delta P = \frac{1}{S}\left( \frac{{\rm d}V}{{\rm d}t}\right) \cdot \eta \cdot R $$

Keywords

Pressure Drop Constant Flow Rate Feed Tank Outlet Valve Total Pressure Drop 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Heitz, F., 1975, Les bases de la filtration. La Sucrerie Belge 94: 439–498.Google Scholar
  2. Lameloise, M. -L., 2002 Filtration frontale. In: Génie des Procédés Alimentaires, Bimbenet J.-J., Duquenoy A., and Trystram G. eds.,. Paris: Dunod, pp. 14–30.Google Scholar
  3. Mafart, P., and Béliard, E., 1992, Génie Industriel Alimentaire. Tome II: techniques séparatives, Lavoisier Tec et Doc, Paris.Google Scholar
  4. Rivet, P., 1981, Guide de la séparation liquide-solide. Idexpo, Cachan.Google Scholar
  5. Perry, R. H., and Green D. W., 1997, Filtration: 18–74, 18–105. In Perry’s Chemical Engineers’ Handbook, 7th edition., Mc Graw Hill.Google Scholar
  6. Purchas, D. B., 1977, Solid/Liquid Separation Equipment Scale-up. Uplands Press Ltd.Google Scholar
  7. Orr, C, 1979, Filtration, Principles and Practise. Marcel Dekker, Inc.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Marie-Laure Lameloise
    • 1
  1. 1.Departement de Genie Industriel AlimentaireEcole Nationale Superieure des Industries Agricoles et AlimentairesCedex – France

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