3. Coagulation filtration: Coagulation filtration aims to remove colloids and suspended impurities in seawater and reduce turbidity. In the reverse osmosis membrane separation project, it is usually measured by the pollution index (FI), and the FI value of the feed water entering the reverse osmosis equipment is required to be <4. Due to the large specific gravity of seawater, high pH value, and large seasonal changes in water temperature, the system uses FeCl3 as the coagulant, which has the advantages of being unaffected by temperature, large and strong alum flowers, and fast settling speed.
4. Reverse osmosis seawater desalination: seawater has high salt content, high hardness, and is highly corrosive to equipment. It is very important to reduce project investment and energy consumption through careful process design and reasonable equipment configuration, thereby reducing unit water production cost and ensuring stable operation of the system.
The above is an introduction to how reverse osmosis desalination is handled. Reverse osmosis seawater desalination technology has many advantages, simple process operation, low energy consumption, and is widely used all over the world.