https://www.emergency-wash.org/water/en/technologies/technology/membrane-filtration

👉🏼 PDF: https://app.box.com/s/ezoq82p6veulyzg9t66k7h9nu4f8ljmw

Household Membrane Filters generally use ultrafiltration (UF) or microfiltration (MF) membranes as flat sheet or hollow fibre modules. Water is filtered by gravity or manual pumping. Particles, colloids, protozoa, bacteria and viruses are retained on the membrane surface. The removal performance depends on the pore size of the membrane and its manufacturing quality.