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Why is it called a “two-bed three-tower + mixed-bed” desalination system?
The two-bed system refers to the cation bed and anion bed in a unitized desalination system. Since the cation bed can also be called a cation column, and the anion bed is called an anion column, the cation bed, the anion bed, and the carbon removal column together form three columns. “\"Two-bed three-tower + mixed bed\" is a common modular desalination system.
It’s just as the friend upstairs said. In terms of the process flow, it is generally bed 1 – decarburization tower – bed 2 – mixed bed. In membrane-based water treatment, the first three beds or columns are replaced with reverse osmosis components, but a mixed-bed is essential.
The two-bed system refers to the cation bed and anion bed in a unitized desalination system. Since the cation bed can also be called a cation column, and the anion bed is called an anion column, the cation bed, the anion bed, and the carbon removal column together form three columns. “\"Two-bed three-tower + mixed bed\" is a common modular desalination system.
Generally, ultrafiltration and reverse osmosis are referred to as pre-desalination, while the two-bed three-tower + mixed-bed system constitutes a desalination system that is mainly used in boiler make-up water systems. Depending on the quality of the water after pre-desalination, if it is of good quality, it may be possible to bypass the two-bed three-tower system and go straight to the mixed-bed system.