The working principle and application of Reverse Osmosis Membrane

The RO membrane is an artificial semipermeable membrane with certain characteristics made by simulating the biological semipermeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis technology is to separate these substances from water under the action of a pressure higher than the osmotic pressure of the solution, based on the fact that other substances cannot penetrate through the semipermeable membrane. The membrane pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in the water.

The reverse osmosis membrane is widely used in fields such as seawater desalination, brackish water desalination, drinking water purification, industrial pure water preparation, wastewater treatment, and special separation.