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Temperature Effects on Concentration Polarization Thickness in Thin‐Film Composite Reverse Osmosis Membranes
Author(s) -
Baghdadi Yasmine N.,
Alnouri Sabla Y.,
Matsuura Takeshi,
Tarboush Belal J. Abu
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800184
Subject(s) - membrane , thin film composite membrane , reverse osmosis , concentration polarization , polyamide , forward osmosis , osmotic power , pressure retarded osmosis , chemical engineering , permeation , materials science , composite number , chromatography , chemistry , composite material , engineering , biochemistry
Continuous research and development of reverse osmosis (RO) technologies has led to the production of membranes that are very effective with high salt rejection abilities. As temperature is one of the factors that affects salt rejection capabilities in membranes, this paper investigates the effect of temperature on the thickness of the concentration polarization layer (CPL) deposited on thin‐film composite seawater RO membranes. Two types of membranes were studied: those with ex situ macromolecules and those with in situ macromolecules. FilmTec's reverse osmosis system analysis design software was used to predict the variation of salt rejection and permeate flow rate with temperature. The impact of these variations on the thickness of the CPL was analyzed for different polyamide concentrations in the membrane.