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The role of membrane pressure in reverse osmosis
Author(s) -
Paul D. R.
Publication year - 1972
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1972.070160320
Subject(s) - membrane , reverse osmosis , osmosis , osmotic pressure , forward osmosis , diffusion , differential pressure , materials science , chemistry , chemical engineering , thermodynamics , mechanics , physics , engineering , biochemistry
Abstract Liquid transport occurs through reverse osmosis membranes as a result of an applied pressure differential. The pressure within the membrane continuum is an important thermodynamic parameter in the formulation of solution‐diffusion models for this process. It is shown that this membrane pressure is the same throughout the membrane for supported flat and tubular membranes and for hollow fibers. The use of this parameter in calculating the induced concentration differential is discussed.