China's research on seawater desalination technology has a history of nearly half a century, and the reverse osmosis membrane method is mainly used for seawater desalination. Compared with the traditional seawater desalination process, the reverse osmosis membrane method produces faster, more efficient, lower energy consumption, does not produce pollutants during the production process, and has a relatively low failure rate. Its principle is to selectively separate various components in seawater according to the pressure difference between the two sides of the reverse osmosis membrane and the selective permeability of the membrane.
In actual operation, the seawater is driven into reverse osmosis by pressurizing the high-pressure plunger pump, because the membrane pore size of the reverse osmosis membrane is very small, and the nano-scale separation material is used, which also has a good interception effect on ionic substances, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, suspended solids and other substances contained in seawater.
Compared with other traditional treatment methods, the reverse osmosis membrane system has the advantages of strong anti-pollution ability, high degree of automation, small footprint, high desalination rate and low energy consumption. As the core technology of reverse osmosis desalination process, it assumes an important function. During operation, it has low energy consumption, no pollution and no phase change.
The reverse osmosis desalination process has been put into use in some large factories to alleviate water stress for industrial production. In coastal areas, reverse osmosis desalination process is also an important solution for residents' domestic water, and it can also provide fresh water for marine operations and navigation, with strong reliability.
Edit: Novelty Technique: m.
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