1. Ultrafiltration/UF is a type of filtration widely used in separation technique. It can removes suspended or particulate matter (including colloids & silt) from water. This solution is far more reliable than a conventional multimedia filter, which removes approximately 10 micron or larger matter, where a UF membrane pore size ranges from 0.01 to 0.10 micron. In addition to superior turbidity removal, UF membranes efficiently remove bacteria and most viruses. Ultrafiltration is used as a pre-treatment step in reverse osmosis processes to produce potable drinking water.
2. Ultrafiltration membrane is the anisomerous semipermeable membrane made of macro molecule material as the separation method without phase transition for solution, and can remove particles whose molecule weight ranges 1, 500-100, 000 Dalton, and can effectively remove organic, bacterium, virus, colloid and non-ion suspended solid.