Article | REF: J2792 V1

Membrane filtration (RO, NF, UF) - Membrane characterization

Author: Christel CAUSSERAND

Publication date: June 10, 2006, Review date: September 1, 2015

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1. Structural features

Various characterization methods have been developed to access information on membrane structure, particularly pore size. They can be classified into three types: microscopic techniques, liquid intrusion or displacement techniques, and tracer retention measurement techniques.

1.1 Microscopic techniques

These techniques provide information on surface topology, roughness and pore size. Several microscopic observation methods are used. They differ in terms of implementation and resolution

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Structural features