Ion removal efficiency of anion beds, cation beds, and mixed beds
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I would like to ask everyone: what are the typical ion removal rates for anion exchange beds, cation exchange beds, and mixed-bed reactors? This post was last edited by li*ch1968 on 2009-4-11 09:12]
Since the regeneration of mixed-bed resins is rather complicated, the ion removal rate must exceed 95% after the materials pass through the anion and cation beds; if necessary, two sets of anion and cation beds can be connected in series. When the ion content is very high, other processes such as electrodialysis are advisable.
Generally, the ion removal efficiency of anion and cation beds can reach over 96-98%, while after passing through a mixed bed, the ion removal efficiency can exceed 99.5%
I saw in the documents that it refers to the sodium content in the water coming out of the sun bed
Basically, it can be said that these two most difficult-to-remove ions are generally used to measure the processing capacity of yin-yang beds.
Although mixed-bed systems provide good removal efficiency, they have specific requirements regarding the inlet water, and are generally placed after the anion and cation beds. It has a long operating cycle and is used only for purified water.
Mixed-bed reactors are suitable for polishing systems. The mixed-bed desalination capacity of our unit reaches 98%
After treatment in our plant’s counter-current bed: silica
Yin-yang beds generally achieve a water conductivity of less than 5 at the outlet, while mixed beds achieve a value below 0.1. The desalination efficiency is over 99.5%, with sodium ion levels in the effluent from the cation exchange column being less than 10 PPb, and silicon levels in the effluent from the anion exchange column being less than 100 PPb.