Investigation of flux decline in tortuous pore structures via three-dimensional simulation of cross-flow microfilter fouling

Bingyi Yu, Shiv G. Kapoor, Richard E. DeVor, John E. Wentz

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a fluid dynamic-based approach to the prediction of the flux decline due to partial and complete pore blocking in the microfiltration process. The electrostatic force model includes both particle-particle (PP) and particle-membrane (PM) electrostatic forces. The addition of such forces was shown to affect particle trajectories in a tortuous three-dimensional microfilter membrane geometry. The model was validated by comparing experimental flux decline data with simulation flux decline data. A design of experiments was conducted to investigate the effects of transmembrane pressure, PM-and PP-zeta potential on flux decline. The simulation experiments revealed that low flux decline was associated with relatively low transmembrane pressures and near-zero values of PP-and PM-zeta potential; and relatively high transmembrane pressures and more-negative values of PP-and PM-zeta potential. The amount of flux decline was shown to be correlated to the specific nature of partial and complete pore blocking in the pore structure.

Original languageEnglish (US)
Article number031001
JournalJournal of Manufacturing Science and Engineering, Transactions of the ASME
Volume136
Issue number3
DOIs
StatePublished - Jun 2014

Keywords

  • electrostatics
  • fluid dynamic model
  • flux decline
  • microfiltration
  • three-dimensional simulation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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