Ultrafiltration Membrane Design Calculator
Water Filtration and Purification

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Solving for membrane resistance.

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Inputs:

pressure differential (ΔP)		pascal atmosphere bar dyne/centimeter^2 foot of water inch of mercury inch of water kilonewton/meter^2 millibar millimeter of mercury newton/meter^2 pound/foot^2 pound/inch^2 torr
osmotic pressure differential (Δπ)		pascal atmosphere bar dyne/centimeter^2 foot of water inch of mercury inch of water kilonewton/meter^2 millibar millimeter of mercury newton/meter^2 pound/foot^2 pound/inch^2 torr
membrane water flux (JW)		gmol/centimeter^2-second
gel layer resistance (RS)		gram-centimeter/gmol-second

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Conversions:

pressure differential (ΔP)	=	0		=	0	dyne/centimeter^2
osmotic pressure differential (Δπ)	=	0		=	0	dyne/centimeter^2
membrane water flux (JW)	=	0		=	0	gmol/centimeter^2-second
gel layer resistance (RS)	=	0		=	0	gram-centimeter/gmol-second

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Solution:

membrane resistance (RM)

=

HAS NOT BEEN CALCULATED

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Other Units:

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Reference - Books:

1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.

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