1. Scale prevention: When the reverse osmosis membrane is used to treat raw water containing high concentration of calcium and magnesium ions and other inorganic salts (such as sulfate and carbonate). ), these ions will concentrate on the surface of the membrane and may crystallize to form hard scale. Hard scale will block the pore size of the membrane, reduce the water flux and desalination rate of the membrane, and seriously affect the operating efficiency and life of the reverse osmosis system.
2. Protective film element: Scale inhibitor can change the crystal growth process of insoluble salts in water through chemical reaction, making it difficult to deposit on the membrane surface, thus protecting the reverse osmosis membrane from scale damage. For example, scale inhibitors can be complexed with calcium and magnesium ions or form soluble complexes to prevent them from forming insoluble scale, such as CaCO3 or Mg(OH)2.
3. Keep the performance stable: The correct use of scale inhibitor is helpful to keep the water quality and quantity of reverse osmosis system stable, reduce the frequent cleaning and maintenance requirements caused by scaling, and further improve the operation stability of the whole water treatment system.
4. Prolonging membrane life: Proper use of scale inhibitor can effectively prevent membrane components from irreversible damage due to scaling, prolong the service life of reverse osmosis membrane and reduce the cost of replacing membrane components.
After adding scale inhibitor, the reverse osmosis system can maintain high separation efficiency when treating high hardness or high alkalinity water source, and ensure the long-term stable operation of the equipment. At the same time, it can also save operating costs and improve overall economic benefits.