Soft water - water softening methods
Soft water:
The water which does not contain HCO3-, Cl-, SO42- salt of Ca2+, Mg2+, Fe2+, Al3+ & form foam easily by reacting with soap is called soft water e.g. Rain water.
Water softening methods:
Water softening process is done in order to remove Ca2+ and Mg2+ ions from water. Since, Na and Mg are nonvolatile salt, it is needed to separate them from water by precipitation or any other way.
There is a simple process of softening temporary hardness of water and it is boiling. When water is boiled the dissolved Calcium & Magnesium salt converted to Calcium Carbonate and Magnesium Carbonate & precipitated. That way they can be separated from water. The reaction is here:
Ca(HCO3) --> CaCO3 + CO2 + H2O
ppt.
Mg(HCO3) --> MgCO3 + CO2 + H2O
ppt.
For both temporary and permanent hard water there are three industrial softening methods. These are:
- Soda lime mthod
- Base exchange method (permutit)
- Demineralisation method.
It needs to neutralize water before application in textile processing......nice blog.
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ReplyDeleteGreat article on water softening methods! The clear comparison of techniques like ion exchange and reverse osmosis is very informative. As a water treatment company, we appreciate the thorough explanation. Looking forward to more posts like this!
ReplyDeleteGreat article! It’s fascinating how water softeners can help improve water quality by removing minerals like calcium and magnesium. The process of softening not only prevents scale buildup but also enhances the effectiveness of soaps and detergents, which is a big plus for households.
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