Softened water treatment mainly removes calcium and magnesium ions in water, and turns hard water into soft water after treatment, so as to be applied to people’s life and production. So what are the common treatment methods for softened water?
1. Ion Exchange Method
Methods: Using cation exchange resin, calcium and magnesium ions in water are replaced withsodium ions. Due to the high solubility of sodium salt, the formation of scale caused by the increase of temperature is reduced.
This softened water treatment method is applicable to catering, food, chemical, pharmaceutical and other fields, air conditioning, industrial circulating water and other applications. Ion exchange is a commonly used technology for softening water.
Features and functions: The effect is stable, the process is mature. The hardness can be reduced to 0.
2.The Method Of Adding Medicine
Methods: Adding scaleinhibitor to water can change the binding characteristics of calcium and magnesium ions and carbonate ions, so that scale can not be precipitated and deposited.
The scope of application of this softened water treatment method: due to the addition of chemical substances, the application of water is greatly limited, and it can not be applied to drinking, food processing, industrial production, etc. It is rarely used in the civilian field.
Characteristics : less one-time investment, wide adaptability.
3.Membrane Separation Method
Methods: Both nanofiltration membrane (NF) and reverse osmosis membrane (RO) can intercept calcium and magnesium ions in water, thus reducing the hardness of water.
Scope of application of this softened water treatment method: generally less used for specialized softening treatment.
Characteristic: The effect is obvious and stable, and the application range of this treated water is wide.It has highrequirements for water inlet pressure, and the equipment investment and operating costs are higher.
4.Electromagnetic Method
Methods: The electric or magnetic field is added to the water to change the characteristics of ions, so as to change the deposition speed of calcium carbonate (magnesium carbonate) and the physical characteristics of deposition to prevent the formation of hard scale.
The scope of application of this softened water treatment method: it is mostly used for the treatment of circulating cooling water in commercial (such as central air conditioning, etc.), and can not be applied to the treatment of industrial production and boiler recharge water.
Features: The equipment investment is small, the installation is convenient, the operation cost is low. However, the effect is not stable enough, there is no unified measurement standard, andbecause the main function is only to affect the physical properties of the scale within a certain range, the use time and distance of the treated water have certain limitations.
5. Lime method
Method: Add lime to water.
This softened water treatment method is applicable to high hard water with large flow.
Characteristic: can only reduce the hardness to a certain range.
We Weifang ToptionMachinery Co., Ltd supply all kinds of water treatment equipment including water softening equipment. If you would like more information, please visit our website www.toptionwater.com. Or if you have any need, please do not hesitate to contact us.
Post time: Oct-23-2023