Editing Ultrafiltration (section)

==== Particulate deposition ====
The following models describe the mechanisms of particulate deposition on the membrane surface and in the pores:<br />
:*''Standard blocking'': macromolecules are uniformly deposited on pore walls
:*''Complete blocking'': membrane pore is completely sealed by a macromolecule
:*''Cake formation'': accumulated particles or macromolecules form a fouling layer on the membrane surface, in UF this is also known as a gel layer
:*''Intermediate blocking'':  when macromolecules deposit into pores or onto already blocked pores, contributing to cake formation <ref name=Bruijn>{{cite journal|last1=Bruijn|first1=J P F|author2=Salazar, F N |author3=Borquez, R |title=Membrane blocking in ultrafiltration: A new approach to fouling|journal=Food and Bioproducts Processing|date=September 2005|volume=83|issue=3|pages=211–219|doi=10.1205/fbp.04012}}</ref>