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By the addition of washing soda (sodium carbonate)Calcium and magnesium ions present in hard water react with sodium carbonate to produce insoluble carbonates. The water now contains soluble and harmless sodium salts.

Calgon processCalgon is a trade name of a complex salt, sodium hexametaphosphate

(NaPO3)6. It is used for softening hard water. Calgon ionizes to give a complex anion:

The addition of Calgon to hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of Calgon.

This results in the removal of calcium and magnesium ions from hard water in the form of a complex with Calgon. The water is softened and sodium ions are released into water.

By the ion-exchange process (Permutit process)Permutit or sodium aluminum silicate is a complex chemical compound, which occurs as a natural mineral called Zeolite. Permutit or zeolites are insoluble in water and have the property of exchanging ions present in them with the ions present in the solution.

Permutit or zeolites are packed in a suitable container and a slow stream of hard water is passed through this material. As a result, calcium and magnesium ions present in hard water are exchanged with sodium ions in the permutit (Na+Al-Silicate). The outgoing water contains sodium salts, which do not cause hardness.

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12y ago
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13y ago

The best method of softening your water is through new technology provided by Clear Water Enviro Technologies. There ScaleBlaster system utilizes a square waver frequency that passes through a coil wrapped around your incoming water line that alters the ions in the calcium and magnesium minerals that cause hard water. Because the ions are changed, the calcium and magnesium is broken down and caused to lose all of it's adhesive properties.

Traditional salt based softening systems remove calcium and magnesium (both healthy minerals) and replace them with sodium. They cost twice as much as a ScaleBlaster system and are harmful for the environment as well.

One of the biggest problems with a traditional salt based water softener is the fact that you must continually maintain your system by adding salt and repairing parts that fail generally within 1-3 years after installation. Not to mention the 1000's of gallons of water wasted per year. Average water softener waste 100-150 gallons of water during it's regeneration cycle and this regen happens on average every 1-3 days. So in a worse case scenario, that is 54750 gallons of water a year wasted.

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9y ago

Water can be softened by removing calcium, magnesium, and certain other metal cations from hard water. Water softening can be achieved by using lime softening or ion-exchange resins.

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12y ago

softening hard water is done with the help of wasing soda(sodium carbonate decahydrate ) Na2CO3.10H2O.

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13y ago

Deionize it from (=remove) +2 cations and (hydrogen) carbonate anions by Ion Exchange 'filter'

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16y ago

run it through a water softener.

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Q: How can hard water be softened?
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Related questions

What can you do about hard water?

Hard water must be softened by boiling or by treatment with ion exchangers resins.


Should you drink water that has been softened?

If your water is naturally soft it is perfectly safe to drink. If your water has been softened by a "water-softener" it contains sodium ions as a byproduct of the softening process. Having an intake of this much sodium in your drinking water could be detrimental.


How do you use the word softened in a sentence?

A moisturiser will soften your skin and make it glow.I added water to soften the mixture.If you give her flowers, she may soften her heart towards you.Soften means to make or become less hard/to make or become less severe. .


Why and how Deuterium is responsible for softening of water?

Water is not softened with deuterium.


How can water be softened in the easiest way?

you can boil it and make it soft


Can softened well water be used for betta fish?

Yes


What is the purpose of a bypass on a water softener?

The bypass on a water softener is a valve that serves the purpose of allowing water from the main point of supply to flow into a house or building when the water softener is being serviced. It can also be used to allow some 'hard' water to be mixed with the softened water.


What does water colours mean?

Watercolours are a type of paint media, softened for use by water.


Are marshmallows aliens?

No, it is a foodstuff made of sugar, flavour, softened gelatin and water.


What are synonyms of unpadded?

A synonym for unpadded is hard. Hard in this context means not softened by padding. A synonym is a word with the same or similar meaning of another word.


Is water softened by potassium chloride better for your hair?

Water is not "softened" by potassium chloride, whether this salt is already present in the water or is added to it. The cause of water hardness is the presence in the water of divalent cations, primarily magnesium and calcium, which form almost totally water insoluble salts with the fatty acid anions of soaps. The fatty salts of these monovalent cations such as potassium are much more soluble in water. Therefore, water is softened by replacingdivalent cations in the water by monovalent cations. Such replacement can be accomplished by contacting the hard water with a cation-exchange resin preloaded with potassium chloride, or any other water soluble sodium or potassium salt. Whether such water is "better for your hair" is a subjective judgment, but such replacement does allow thoroughly cleaning the hair with a smaller amount of soap than would otherwise be needed.


What is the sodium content of softened water?

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