How does ultrafiltration membrane work？

Ultrafiltration is a separation process that uses a membrane to filter out impurities from a liquid. The ultrafiltration membrane is a type of semipermeable membrane that allows some molecules and ions to pass through while blocking others based on their size and charge.

The ultrafiltration membrane works by using a pressure gradient to force the liquid to flow through the membrane. The membrane has tiny pores that are small enough to block particles and molecules above a certain size, while allowing smaller molecules and ions to pass through.

As the liquid passes through the ultrafiltration membrane, the impurities are filtered out and retained on the feed side of the membrane, while the purified liquid passes through the other side of the membrane. The degree of purification depends on the size and charge of the molecules and ions being filtered, as well as the pore size and surface chemistry of the membrane.

Ultrafiltration membranes are commonly used in water treatment, food and beverage processing, pharmaceutical manufacturing, and other industries where the removal of impurities is critical.