Softener
المنقي - Enthärter - Adoucisseur - - سختیگیر تبادل یونی
How will be softened hard water?
Hard water is softened by removing the calcium (Ca+2) and magnesium (Mg+2). When hard water passes through the resin bed in softening system. The hard ions (Ca+2, Mg+2) in the water exchanges for soft ones (Na+), so will be softened water. Once the resin bed fills up with hardness ions, it must be regenerated. Salt is typically used in the regeneration process. After regeneration can be used again.
The chemical reaction between hardness and resin;
Ca+2 + 2 R-Na+ -----> R2-Ca + 2 Na+ Service
Mg+2 + 2 R-Na+ -----> R2-Mg + 2 Na+ Service
R2-Ca + 2 Na+ -----> 2 R -Na + 2 Ca+2 Regeneration (NaCl)
R2-Mg + 2 Na+ -----> 2 R -Na + 2 Mg+2 Regeneration (NaCl)
Hard water causes a higher risk of lime scale deposits in water systems. Due to this lime scale build-up, pipes are blocked and the efficiency of hot boilers and tanks is reduced.
