Water Softening Plant

Application

• Softening of utility water in homes, hotels, resorts
• Softening of boiler feed water
• Softening of industrial water

Water softening: Why & How?
The presence of certain metal ions like Calcium and Magnesium in water causes a variety of problems. These ions interfere with the action of soaps. They also lead to build up of limescale, which can foul plumbing, and promote galvanic corrosion, fail hot water system. Hard water are also making problems with skin and hair.

Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water is more compatible with soap and extends the lifetime of plumbing.

Water softening is usually achieved using ion-exchange resins. Ion exchange resins are organic polymers containing anionic functional groups to which the dications (Ca++) bind more strongly than monocations (Na+). When all the available Na+ ions have been replaced with calcium or magnesium ions, the resin must be re-charged by eluting the Ca2+ and Mg2+ ions using a solution of sodium chloride or sodium hydroxide depending on the type of resin used.