The behavior of suspensions and macromolecular solutions in crossflow microfiltration

Georges Belfort, Robert H. Davis, Andrew Zydney

Research output: Contribution to journalReview article

1056 Citations (Scopus)

Abstract

Although microfiltration is one of the oldest pressure-driven membrane processes, it is probably the least understood when it comes to the filtration of suspensions and macromolecules. Microfiltration is characterized by operation at low pressures, by high permeation fluxes, and by crossflow mode in flat or cylindrical geometries. The major limitation of microfiltration is membrane fouling due to the deposition and intrusion of macromolecules, colloids and particles onto and into the microporous membrane. In this review, we analyze the various components of this problem by focusing on the formation of cakes, the behavior of suspension flows and particle transport in simple geometry ducts, and on the formation and behavior of fouling layers including those resulting from macromolecules, colloids and particles. Some of the work we report on is very recent or is still in progress and needs independent verification. With this understanding, we hope that the reader will be able to use these concepts for analyzing other systems and for investigating new module designs.

Original languageEnglish (US)
Pages (from-to)1-58
Number of pages58
JournalJournal of Membrane Science
Volume96
Issue number1-2
DOIs
StatePublished - Nov 28 1994

Fingerprint

Microfiltration
Macromolecules
macromolecules
Suspensions
fouling
Colloids
membranes
Particles (particulate matter)
Membranes
colloids
duct geometry
Pressure
Membrane fouling
Geometry
readers
Fouling
intrusion
Permeation
Ducts
low pressure

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

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The behavior of suspensions and macromolecular solutions in crossflow microfiltration. / Belfort, Georges; Davis, Robert H.; Zydney, Andrew.

In: Journal of Membrane Science, Vol. 96, No. 1-2, 28.11.1994, p. 1-58.

Research output: Contribution to journalReview article

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AU - Belfort, Georges

AU - Davis, Robert H.

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