Full Description

The overall objective of this research was to characterize and provide morphologicalanalyses of low-pressure membranes comparing clean and fouled membranes.Atomic force microscopy shows that a clean PES membrane is relatively smooth while aclean regenerated cellulose membrane is rough. Fouled UF membrane in AFM imageanalysis demonstrated that the roughness increased for the smooth PES membrane anddecreased for the rough YM membrane demonstrating evidence of surface coverage.Both clean membranes have been visualized by field emission scanning electronmicroscopy (FESEM). Image analysis of scanning electron microscopy (SEM) applied toMF membranes provides explanations of fouling mechanisms associated with reducedpore size, pore blockage, and/or surface (gel layer) coverage. Images obtained with SEMand FESEM for each membrane have been quantified with porosity, pore density, meanpore radius and pore size distribution using an image processing program. Includes tables, figures.

Product Details

Edition: Vol. - No. Published: 03/05/2003 Number of Pages: 9File Size: 1 file , 3.4 MB