CHARACTERIZATION OF CERAMIC TUBULAR MEMBRANES BY ACTIVE PORE-SIZE DISTRIBUTION

A description of the use of a liquid displacement (modified bubble-poi nt) method to characterize tubular membrane microfilters in terms of p ore sizes and pore-size distributions is given. Following a theoretica l analysis the method, some comments about pore-size distribution of t ubular filters and experimental results for different ceramic microfil ters are presented. The characterization studies reported in this pape r are applicable to other ceramic membranes, and they represent a sign ificant step in an understanding of ceramic membranes in various appli cations.