Osmosis technology is the most advanced and energy-saving membrane separation technology nowadays. The principle of reverse osmosis membranes, sodium filtration equipment, PP cotton, etc., is that under the action higher than the osmotic pressure of the solution, other substances cannot penetrate through the semi-permeable membrane, thereby separating these substances from water. Due to the very small pore size of the reverse osmosis membrane (only about 10A), it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water (removal rate...).