Reverse osmosis technology is commonly used in fresh water of seawater and brackish water; softening treatment of water; wastewater treatment and purification, concentration and separation of food, pharmaceutical industry and chemical industry. In addition, the reverse osmosis technology has also achieved good results in the pre-salting treatment, which can reduce the load of the ion exchange resin by more than 90%, and the amount of the regenerant of the resin can also be reduced by 90%. Therefore, it not only saves money, but also contributes to environmental protection. Reverse osmosis technology can also be used for particles, organic substances and colloids in water, which has a good effect on reducing the pollution of ion exchange resin and prolonging the service life.
Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses a pressure difference as a driving force to separate a solvent from a solution. Because it is opposite to the direction of natural infiltration, it is called reverse osmosis. According to the different osmotic pressure of various materials, the reverse osmosis pressure greater than the osmotic pressure, that is, the reverse osmosis method, can be used for the purpose of separation, extraction, purification and concentration.