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Multi-Media Filter
- Product No.：Ion Exchange Resin
The relationship between NaCl concentration and freezing point can be referred to the following table:
|
Concentration NaCl |
5% |
10% |
15% |
20% |
23.50% |
|
Freezing point |
-3 ℃ |
-7 ℃ |
-10.8 ℃ |
-16.3 ℃ |
-21.2 ℃ |
If the resin is placed in the resin column for longer time preservation, NaOH solution is recommended for immersion. It is mainly because the salt solution will cause serious corrosion to the equipment. The relationship between NaOH concentration and freezing point can be referred to the following table:
|
Concentration |
5% |
8% |
16% |
18% |
23.50% |
|
Freezing point |
-5 ℃ |
-10 ℃ |
-15 ℃ |
-20 ℃ |
-21.2 ℃ |
1. Backwashing:
Water or brine is passed upwards through the resin bed, causing the beads to expand and loosen, allowing the contaminants to be flushed out.
2. Regeneration:
This step removes the ions that have been adsorbed onto the resin beads, restoring their capacity for further exchange.
The specific regenerant used will depend on the type of ion exchange resin and the type of ions it is designed to remove.
3. Rinsing:
After regeneration, the resin bed is thoroughly rinsed with water or brine to remove any residual regenerant solution.
4. Chemical Cleaning:
If the resin is heavily fouled with organic or inorganic contaminants, it may require additional cleaning with a chemical cleaning agent.
5. Disposal:
Once the resin is exhausted and can no longer be effectively regenerated, it must be disposed of properly.
PUROLITE Ion Exchange Resin
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