The role of reverse osmosis scale inhibitors

Reverse osmosis scale inhibitor is a chemical used in reverse osmosis water treatment systems. Its main function is to prevent and reduce the deposition of soluble salts, particulate matter, and organic substances in water, and to block the pore structure of reverse osmosis membranes. The following are the main functions of reverse osmosis scale inhibitors:

Preventing scale formation: Reverse osmosis membranes are very sensitive to soluble salts in water. When water passes through the membrane, the dissolved salts are prone to crystallize on the membrane surface and form scale, leading to membrane blockage and performance degradation. Reverse osmosis scale inhibitors can prevent salt crystallization and scale formation by forming stable complexes with ions in water.

Inhibition of particle deposition: There may be suspended particles in water, such as soil, iron oxide, organic particles, etc. These particles can also adhere to the surface of the reverse osmosis membrane, block membrane pores, and reduce water flux. Reverse osmosis scale inhibitors can adsorb or disperse particles, preventing them from depositing on the membrane.

Dispersed organic matter: Organic substances in water, such as oils, proteins, polysaccharides, etc., can easily form adhesive layers on the surface of reverse osmosis membranes, leading to membrane blockage and pollution. Reverse osmosis scale inhibitors can reduce the adhesion and accumulation of these organic substances to the membrane by dispersing and decomposing them, and maintain the permeability of the membrane.

Improving the service life of membranes: By preventing the accumulation and blockage of scale, particulate matter, and organic matter, reverse osmosis scale inhibitors can extend the service life of reverse osmosis membranes, reduce the frequency of cleaning and replacing membranes, and reduce system maintenance costs.

It should be noted that the specific formulation and use method of reverse osmosis scale inhibitors should be selected and adjusted based on factors such as the characteristics of the water source, the type of membrane, and working conditions. During use, the manufacturer's recommendations and operating guidelines should be followed to ensure the efficient and stable operation of the reverse osmosis system.