A new method for estimating cake height and porosity during crossflow filtration of particulate suspensions

摘要

An indirect method was developed to estimate the height and porosity of the cake deposited on the membrane surface during crossflow filtration of a particulate suspension. The method was based on reconstructing the cake recovered from the membrane unit by static filtration on a 0.22 um filter for the same time and trasmemebrane pressure (TMP) as used in the crossflow microfiltration (CFMF) run. The accuracy of the porosity measurements was confirmed using uniform sized glass spheres.