DETERMINATION OF PORE SIZE DISTRIBUTION BY SUSPENSION FILTRATION

The regular change of particle size distribution of suspension before and af-ter filtration has been quantitatively analyzed by simulation of the filtration pro-cess. An equation of pore size distribution of porous materials is proposed and asuspension filtration method to calibrate the pore size distribution of porous mate-rials is established. Experimental results appear to be in good agreement withthose calculated by this equation, thus proving the reliability of this method.Under certain conditions the pore size distribution calibrated by this method givesquantitative estimation of the filtration efficiency for given filtrating suspension,and in such a case the selection of filter material would be much easier.