Experimental investigation of membrane fouling due to microfiltration of semi-synthetic metalworking fluids

John E. Wentz, Shiv G. Kapoor, Richard E. DeVor, N. Rajagopalan

Research output: Research - peer-reviewArticle

Abstract

Membrane fouling is a major concern in microfiltration of metalworking fluids (MWFs). In this study two experiments were undertaken using a-alumina membranes in the microfiltration of a semi-synthetic MWF. The first experiment tested the effect that MWF concentration has on MWF flux. It was found that MWF concentrations between 1 % and 5% yielded similar steady-state fluxes after several days of processing. Membrane fouling occurred first by a deposited layer of MWF particles causing pore constriction followed by the formation of a porous cake layer of particles. The second experiment examined the effect of operational parameters on the formation of the cake layer. A 2 3 factorial experiment determined that increasing cross-flow velocity retards cake. formation and that transmembrane pressure only affects membrane flux in the presence of backpulsing.

LanguageEnglish (US)
Pages281-288
Number of pages8
JournalTransactions of the North American Manufacturing Research Institute of SME
Volume33
StatePublished - 2005

Fingerprint

Membrane fouling
Microfiltration
Fluids
Experiments
Membranes
Alumina
Processing

Keywords

  • Membrane Fouling
  • Metalworking Fluids
  • Microfiltration

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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AB - Membrane fouling is a major concern in microfiltration of metalworking fluids (MWFs). In this study two experiments were undertaken using a-alumina membranes in the microfiltration of a semi-synthetic MWF. The first experiment tested the effect that MWF concentration has on MWF flux. It was found that MWF concentrations between 1 % and 5% yielded similar steady-state fluxes after several days of processing. Membrane fouling occurred first by a deposited layer of MWF particles causing pore constriction followed by the formation of a porous cake layer of particles. The second experiment examined the effect of operational parameters on the formation of the cake layer. A 2 3 factorial experiment determined that increasing cross-flow velocity retards cake. formation and that transmembrane pressure only affects membrane flux in the presence of backpulsing.

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