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Available with us is a wide gamut of Water Demineralization Plant. These plants are sourced from the reliable vendors of the industry, who make use of superior quality raw material for manufacturing these products. Plants offered by us use Ion exchange technology to effectively remove the harmful ionic contaminants and salts (cations and anions) from water. This product range comprises of special type of resin filtration system, which is manufactured under expert supervision at our vendors end. Ion Exchange
- Process in which Contaminant ions are exchanged from water is called ion exchange
- Process occurs in ion exchange resin Initially, resin is loaded with hydrogen (H) ion for cations and hydroxide (OH-) ion for anions
- Water passes through the resin, the contaminant ions in the water displace the loaded ions from the sites on the resin
- Resin has a greater affinity for the contaminant ions. Affinity for most resins is based loosely on ionic size and charge
Regeneration
- Most of the cation resin gets converted into Ca, Mg, Na form and it has no Hydrogen Ions (H ) to replace Ca, Mg, Na ions and the anion resin gets converted into Cl, SO4, SiO2 form and it has no Hydroxyl Ions (OH-) to replace Cl, SO4, SiO2 ions.
- Exhausted resin has to be brought back into Hydrogen (H ) Hydroxyl (OH-) form to continue the process and use it again and again
- Procedure of converting exhausted resin into Hydrogen (H ) Hydroxyl (OH-) form is called regeneration
Separate Bed DM Systems
- Ion exchange occurs across at least two different columns.
- First is a cation column, which is filled with resin loaded with positive hydrogen ions (H)
- Water passes through this column, the positively charged impurities in the water are exchanged for the hydrogen ions
- Similar exchange takes place in the second column, the anion column
- Column is filled with resin loaded with negative hydroxide ions (OH-)
- Cation-free water from the cation column passes through, any negatively charged contaminants are removed from the water and replaced by hydroxide ions from the resin
- Water now has a neutral pH. hydroxide [OH-] and hydrogen [H ] ions exchanged in the columns combine, forming water [H2O)
Mixed Bed Systems
- Mixed Bed System water is purified by removing all ions in one pass through an ion exchange bed
- Bed consists of cation and anion resins in mixed condition, so that ions are actually removed in the same two step ion exchange process
- Traces of Cations and Anions of the dissolved solids and silica in the water are replaced by Hydrogen ion (H) and Hydroxyl Ion (OH-) respectively
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