Explanation
Also known as ro membrane, it is an artificial semi permeable separation membrane with a quota pore size of 0.1-l.Onm, which is made by simulating biological semi permeable membrane and is driven by pressure. When the pressure at the liquid end of the membrane material is higher than the osmotic pressure of the material liquid, the solvent in the material liquid reverses the direction of natural permeation through the membrane to the low-pressure side under pressure, causing the solvent to separate from the material liquid.
Classification
Special functional materials -> Environmental treatment materials -> Water pollution treatment and purification materials