(1) The desalination rate of reverse osmosis equipment is high, the desalination rate of single membrane can reach 99%, the desalination rate of primary reverse osmosis system can generally be stabilized above 90%, and the desalination rate of secondary reverse osmosis system can be stabilized above 98%.

(2) Since the reverse osmosis equipment can effectively remove microorganisms such as bacteria, organic substances and inorganic substances such as iron, manganese and silicon, the effluent water quality is much better than other methods.

(3) Compared with ion exchange for pure water, it reduces the cost of chemicals (such as NaOH, HCl, etc.) consumed for resin regeneration, labor costs and wastewater treatment due to regeneration, and reduces environmental pollution.

(4) Slow down the change of water quality due to fluctuation of raw water quality, from the surface is conducive to the stability of water quality in production, which has a positive effect on the stability of the quality of demineralized water products.

(5) After setting the reverse osmosis equipment, it greatly reduces the burden of the terminal microporous membrane filter, thus extending the life of the terminal microporous membrane filter.