HOW DOES A WATER SOFTENER WORK?
1 min readJan 28, 2016
What is water softening?
Water softening is replacing of magnesium, calcium and other scale causing cations with sodium ions.
What is water softener?
• Water softeners are ion exchangers that are designed to remove ions, which are positively charged.
• A water softener consists of a Pressure Vessel containing cation exchange resin.
• Adsorption takes place over the surface of the resin, as the hard water passes through it.
• Resin adsorbs calcium and magnesium ions and gives sodium ions which do not constitute to hardness. i.e.
• Once the resin gets saturated with Ca++ & Mg++ ions, it is regenerated with NaCl to again make it ready for softening.
