There are two key points for reverse osmosis facilities to produce pure water: one is the selective membrane and the other is to have a certain pressure. In other words, the semipermeable membrane of reverse osmosis is covered with numerous pores that are approximately the same size as water molecules and can filter out impurities in water, such as bacteria, viruses and most organic matters. Therefore, the function of water purification is relatively strong. Meanwhile, the desalination rate of reverse osmosis depends on the selectivity of the reverse osmosis membrane. The desalination rate of reverse osmosis membrane elements with high selectivity can reach 99.7%. 

Application scope of reverse osmosis pure water equipment 

1. Preparation of pure water and ultrapure water in such industries as electronics, industry, medicine and food. 

2. Purification and preparation of process water for the light textile and chemical industries/chemical circulating water and water for manufacturing of chemical products. 

3. Purification and preparation of water for the food and beverage industry, purified water for drinking, beverage, beer, liquor and health care product. 

4. Concentration and recovery of useful substances from aqueous solutions in the industrial production. 

5. Pre-desalination treatment of enterprise high-pressure boiler make-up water (such as boilers in the power industry, thermal power generation boiler and medium and low-pressure boiler power system in factories and mines) 

6. Desalination of brackish water and seawater. 

7. The pure water device is used as the primary desalination equipment for the production of high-purity water. 

8. Various enterprises and public institutions with a large number of people, such as communities, property management companies, schools, factories, hospitals, tea houses, hotels and canteens.