Reverse osmosis,also known as reverse osmosis,is used in a certain pressure to make the solution of the solvent through reverse osmosis membrane separation.Because of its natural penetration in the opposite direction ,so called reverse osmosis.According to the different osmotic pressure of various materials,the reverse osmosis method,which is more than the osmotic pressure,can achieve the purpose of separation,extraction,purification and concentration.
Reverse osmosis water treatment is the most sophisticated film liquid separation technology,in the influent(concentrated solution) side to overcome the natural osmotic pressure,when the pressure is higher than the natural osmotic pressure of the flow direction will be reversed,the water molecules in the water molecules through the reverse osmosis membrane become dilute solution side of the organic matter,but allows water molecules through,reverse osmosis composite membrane desalination rate is generally greater than 98%.