Kääntöosmoosikalvoja

Kääntöosmoosikalvoja, known in English as reverse osmosis membranes, are a critical component in reverse osmosis (RO) water purification systems. These membranes are semipermeable, meaning they allow certain molecules or ions to pass through while blocking others. In the context of RO, the primary function of the membrane is to allow water molecules to pass through but prevent the passage of dissolved salts, minerals, bacteria, viruses, and other impurities.

The process of reverse osmosis works by applying pressure to a saline solution, forcing it through the membrane. This pressure is greater than the natural osmotic pressure of the solution. As a result, water is pushed from the side with higher solute concentration (the impure water) to the side with lower solute concentration (the purified water), leaving the contaminants behind.

Kääntöosmoosikalvoja are typically made from thin-film composite materials, often polyamide, layered onto a porous support structure. The precise pore size and chemical properties of the membrane are engineered to achieve a high rejection rate of unwanted substances. These membranes are essential for producing highly purified water for various applications, including desalination of seawater, production of ultrapure water for industrial processes, and for home water filtration systems. The efficiency and lifespan of a kääntöosmoosikalvo are influenced by factors such as water quality, operating pressure, and proper maintenance.