Effect of microporous membrane properties and operating conditions on particle retention: Measurements and model studies

Mayur Ostwal; Xiaoyun Lu; Uwe Beuscher; John Pellegrino

doi:10.1080/01496395.2016.1140206

Effect of microporous membrane properties and operating conditions on particle retention: Measurements and model studies

Mayur Ostwal, Xiaoyun Lu, Uwe Beuscher, John Pellegrino^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

ABSTRACT: Depth filtration with microporous membranes has been modelled by extending upon previous approaches of Polyakov^[1–4] to incorporate pore size distribution, tortuosity, and cake buildup. The model-forecasts were benchmarked against filtration measurements performed with colloidal particles using three very different commercial membrane morphologies with the same nominal average pore size. The critical flux for each membrane was determined by a standard flux-stepping method. Particle retention and permeance were studied under constant flux or transmembrane pressure test conditions. Comparison of the forecast results with data shows reasonable qualitative agreement, but the results are very sensitive to the measurement uncertainties of the various properties.

Original language	English (US)
Pages (from-to)	1007-1021
Number of pages	15
Journal	Separation Science and Technology (Philadelphia)
Volume	51
Issue number	6
DOIs	https://doi.org/10.1080/01496395.2016.1140206
State	Published - Apr 12 2016

Bibliographical note

Publisher Copyright:
© 2016 Taylor & Francis.

Keywords

Critical flux
depth filtration
microfiltration
modelling

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Process Chemistry and Technology
Filtration and Separation

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10.1080/01496395.2016.1140206

Cite this

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abstract = "ABSTRACT: Depth filtration with microporous membranes has been modelled by extending upon previous approaches of Polyakov[1–4] to incorporate pore size distribution, tortuosity, and cake buildup. The model-forecasts were benchmarked against filtration measurements performed with colloidal particles using three very different commercial membrane morphologies with the same nominal average pore size. The critical flux for each membrane was determined by a standard flux-stepping method. Particle retention and permeance were studied under constant flux or transmembrane pressure test conditions. Comparison of the forecast results with data shows reasonable qualitative agreement, but the results are very sensitive to the measurement uncertainties of the various properties.",

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AU - Ostwal, Mayur

AU - Lu, Xiaoyun

AU - Beuscher, Uwe

AU - Pellegrino, John

PY - 2016/4/12

Y1 - 2016/4/12

N2 - ABSTRACT: Depth filtration with microporous membranes has been modelled by extending upon previous approaches of Polyakov[1–4] to incorporate pore size distribution, tortuosity, and cake buildup. The model-forecasts were benchmarked against filtration measurements performed with colloidal particles using three very different commercial membrane morphologies with the same nominal average pore size. The critical flux for each membrane was determined by a standard flux-stepping method. Particle retention and permeance were studied under constant flux or transmembrane pressure test conditions. Comparison of the forecast results with data shows reasonable qualitative agreement, but the results are very sensitive to the measurement uncertainties of the various properties.

AB - ABSTRACT: Depth filtration with microporous membranes has been modelled by extending upon previous approaches of Polyakov[1–4] to incorporate pore size distribution, tortuosity, and cake buildup. The model-forecasts were benchmarked against filtration measurements performed with colloidal particles using three very different commercial membrane morphologies with the same nominal average pore size. The critical flux for each membrane was determined by a standard flux-stepping method. Particle retention and permeance were studied under constant flux or transmembrane pressure test conditions. Comparison of the forecast results with data shows reasonable qualitative agreement, but the results are very sensitive to the measurement uncertainties of the various properties.

KW - Critical flux

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KW - microfiltration

KW - modelling

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Effect of microporous membrane properties and operating conditions on particle retention: Measurements and model studies

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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