Microfiltration is a membrane separation process that belongs to the broader category of pressure-driven membrane filtration techniques, distinguished by its ability to separate suspended solids, microorganisms, and large macromolecules from liquids through a semi-permeable membrane with pore sizes typically ranging from 0.1 to 10 micrometers, primarily serving in tertiary treatment, solid-liquid separation, and cell harvesting within aquaculture filtration systems and product recovery applications.