How to solve the scaling phenomenon of brackish water desalination equipment？
Bitter and saline water contains a variety of salt substances, which leads to a higher hardness of the water and can easily lead to scaling of brackish water desalination equipment. How can we alleviate the scaling problem of brackish water desalination equipment?
Firstly, we need to clarify how scaling phenomenon is formed?
During the process of desalination of brackish water, substances such as carbonates, bicarbonates, and sulfates undergo thermal decomposition and transform into various precipitates, resulting in scaling.
So, how to alleviate the scaling phenomenon of brackish water desalination equipment?
1. The use of pH control method can effectively alleviate the scaling phenomenon of brackish water desalination equipment, with low cost and simple and convenient operation.
2. Adding scale inhibitors (water stabilizers) to brackish water prevents the precipitation of calcium and magnesium ions, making the operation simple but slightly more expensive than the pH control method.
What is the principle of scale inhibition?
Due to the fact that the transition from calcium sulfate hydrate to calcium sulfate takes approximately several hours to several days to complete, anti scaling measures can be taken when CaSO -1/2H2O has not yet arrived and is converted into CaSO, mainly through temperature control, concentration control, and chemical methods.