Calcium Reduction

Chemical Formula: Ca
Present as: cation

At higher TDS, generic softening resins can still be used, albeit with lower capacity and higher leakage. With increasingly brackish feed it becomes necessary to use a worker and polisher arrangement or use a WAC resins such as WACMP instead of a SAC resin such as CG8.

SAC type resins are often effective to remove calcium from oil field produced waters. The customary arrangement is with a worker and polisher such that the brine is throughfared through the polisher first and then back through the worker.

The imminodiacetic chelating resin (SIR-300) and the amino phosphonic chelating resin (SIR-500) can be used to remove calcium from brine at any concentration. The amino phosphonic chelating resin is more commonly used for this purpose.

Generic strong acid cation resins are commonly used to remove hardness ions including calcium from potable water. Soft water protects hot water heaters from scale and helps soaps to function without leaving a soap scum. Calcium and other hardness ions are exchanged for sodium (or in some cases potassium). The resins can be used over and over following regeneration with salt brine.

Related Products

CG8

Media Sub Category Strong Acid Cation
Polymer Matrix Styrenic Gel
Ionic Form Sodium
Applications:  

- Softening - Industrial
- Demineralization
- Iron Reduction
- Ammonia Reduction

CG10

Media Sub Category Strong Acid Cation
Polymer Matrix Styrenic Gel
Ionic Form Sodium
Applications:  

- Softening - Industrial
- Demineralization
- Softening - High Temperature

WACMP

Media Sub Category Weak Acid Cation
Polymer Matrix Acrylic Macroporous
Ionic Form Hydrogen
Applications:  

- Partial Hardness Reduction
- Metal Reduction

SIR-500

Media Sub Category Chelating Resin
Polymer Matrix Styrenic Macroporous
Applications:  

- Brine Softening
- Trace Metals Reduction

SIR-300

Media Sub Category Chelating Resin
Polymer Matrix Styrenic Macroporous
Applications:  

- Trace Metals Reduction

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