Flux kinetics, limit and critical fluxes for low pressure dead-end microfiltration. The case of BSA filtration through a positively charged membrane

摘要

The influence of the applied pressure on the flux decay mechanism during Bovine Serum Albumin (BSA) dead-end microfiltration (ME) has been investigated for a polyethersulfone, positively charged, membrane (SB-6407 (R)) from Pall (R) BSA solutions, at pH values of 4, 5 (very close to the protein isoclectric point, [EP) and 6, were micro filtered through the membrane at different low applied transmembrane pressures.