What are the factors that affect the desalination rate of reverse osmosis equipment? Below, Jiajie Water Treatment Editor will talk to you about it

In summary, the factors that affect the desalination rate of reverse osmosis equipment are as follows:

1. Ion valence: The desalination rate increases with the increase of ion valence, and the desalination rate of divalent and trivalent salts is higher than that of monovalent salts;

2. Molecular size: The desalination rate increases with the increase of molecular diameter;

3. Raw water temperature: As the raw water temperature increases, the desalination rate increases due to the decrease in water viscosity;

4. Raw water concentration: As the raw water concentration increases, the desalination rate decreases;

5. Work pressure: When work pressure increases, the desalination rate increases but is not significant;

6. PH value: Although the membrane is not easily blocked under acidic conditions, the desalination rate needs to decrease;

7. Dissolved gas: Soluble gases are prone to permeation in their free state without removing CO2, SO2, O2, Cl2, H2S, etc;

8. Hydrogen bonding trend: For compounds containing strong hydrogen bonds, the removal rate is very low, such as water, phenols, and ammonia (which is why impurities and dissolved substances in water are removed and water is separated from other substances);

9. Organic matter: Organic matter in water has a polluting effect on membranes, and the more organic matter there is, the more susceptible the membrane's performance is to deterioration;

10. Hardness of water: The higher the hardness of water, the easier it is for the membrane to block. For high hardness water, softening treatment should be carried out first to reduce the hardness before entering reverse osmosis;

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