Reverse osmosis performance of modified polyvinyl alcohol thin-film composite membranes

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Journal of Colloid and Interface Science; (United States)

DOI:https://doi.org/10.1006/jcis.1994.1289· OSTI ID:6959212

Lang, K; Chowdhury, G; Matsuura, T; Sourirajan, S ^[1]

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1. Univ. of Ottawa, Ontario (Canada)

Membrane separation characteristics in the nanofiltration (NF) and reverse osmosis (RO) regions of the filtration spectrum are governed by a complex combination of both steric hindrance and surface force interactions. NF and RO membranes having surface charges show unusual selectivity behavior not predicted on the basis of physical pore size alone. Hence, practical characterizations should employ techniques to gain insight on membrane function. In this work, the separation characteristics of an anionically charged modified polyvinyl alcohol (PVA) thin-film composite membrane under different operating pressures were investigated. A qualitative measurement of the surface force interactions between solutes and membrane polymer was conducted using liquid chromatography technique. An attempt was also made to study the chlorine resistance of the composite membrane.

• OSTI ID: 6959212
• Journal Information: Journal of Colloid and Interface Science; (United States), Vol. 166:1; ISSN 0021-9797
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MEMBRANES
PERFORMANCE TESTING
CHLORIDES
CORROSION RESISTANCE
OSMOSIS
POROSITY
PVA
SURFACE PROPERTIES
ULTRAFILTRATION
ALCOHOLS
CHLORINE COMPOUNDS
DIFFUSION
FILTRATION
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYVINYLS
SEPARATION PROCESSES
TESTING
400105* - Separation Procedures