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Permanent hardness of water can be a removed by the following ways:

(a) By the use of soda:

Soda removes both temporary and permanent hardness. It is also inexpensive and easy to use. This makes it the ideal substance for softening water in the home.

(b) Other softening agents in the home:

It is difficult for the housewife to be very precise in the use of soda and the water softened by soda may often contain an excess of it, which even if it is slight, may damage certain fabrics. Hence, other softening agents could be used. They are:

(i) Soap:

Soap is used as a softening agent. However, the use of soap as a softening agent is extravagant on account of its high cost compared with soda.

(ii) Caustic soda:

It removes temporary hardness but reduces permanent hardness only when the lather is very slight.

(iii) Solution of Ammonia:

It may be used for softening water, when the fabrics to be treated would be harmed by soda. If used in excess, ammonia may destroy the Iustre of rayon's, discolour and injure animal fabrics and loosen the dyes of coloured articles. Since, it is not possible to be very certain of the quantity to be used; this is not practicable for softening water.

(iv) Borax:

It is useful for softening water containing over 20% of hardness. Borax is usually used to reduce the alkalinity of soap solution rather than to soften water.

(c) Removal of Permanent Hardness by the Base-Exchange Process:

Base exchange process' is a chemical method by which, softening of permanent hardness in water can be done on a large scale or for household purposes. It is the most popular and effective means of softening hard water. It was discovered by Dr. Robert Gans, who found out the natural minerals called 'Zeolites', which is very effective in softening water.

The Base-Exchange Process includes the following procedures:

The water passes through specially prepared zeolite- a sodium compound, called base-exchange compound. it is has the property of being able to exchange its sodium base for another. When hard water passes through the zeolite, the hardening compounds of calcium and magnesium are caught up by the zeolite and become compounds of sodium. Since sodium salts in water do not precipitate out on heating or form soap curds the water is called 'soft'.

When a given quantity of water, determined by the size of the appliance, has been softened, the zeolite becomes depleted; having parted with all its sodium, but this can be remedied, as the substance has the property of being able to exchange its base again and to take back sodium in place of calcium and magnesium. This process is called 'regeneration'.Zeolite water softeners made for domestic use are either connected with the men water-supply or fixed on to a water tap.

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11y ago
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12y ago

That will depend on what the water will be used for. If very pure water is required for say topping-up a car battery or for use in a steam iron, the best methods would be distillation or ion-exchange (twin-column or mixed resin deioniser). For drinking water, the best methods would be reverse osmosis or ion exchange (H+ cation resin). For washing water e.g. showers, baths, dishwashers and washing machines the best method would be ion exchange (Na+ cation resin or "water softener").

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14y ago

there is 4 ways to remove it:

distillation

washing soda

deionising

ion exchange resin

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Q: What method will you use to remove both temporary and permanent hardness of water?
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What is permanent hardness of water?

Temporary Hardness Temporary hardness is hardness that can be removed by boiling or by the addition of lime (calcium hydroxide). It is caused by a combination of calcium ions and bicarbonate ions in the water. By boiling the water, it promotes the formation of carbonate from the bicarbonate and will precipitate calcium carbonate (the limescale) out of solution, leaving water that is less hard after it has cooled. When it has been heated, less carbon dioxide is able to dissolve into the water. Since there is not enough carbon dioxide around, the reaction cannot take place, and therefore the calcium carbonate will not "dissolve" as readily. Instead, the reaction is forced to re-establish equilibrium, and the solid calcium carbonate is formed. Heating water will remove hardness as long as the limescale that precipitates out is removed. After cooling, if enough time passes the water will pick up carbon dioxide from the air and the reaction will again proceed, allowing the calcium carbonate to "redissolve" in the water. Permanent Hardness Permanent hardness is hardness (mineral content) that cannot be removed by boiling. When this is the case, it is usually caused by the presence of calcium and magnesium sulphates and/or chlorides in the water, which become more soluble as the temperature rises. Despite the name, the hardness of the water can be easily removed using a water softener, or ion exchange column.


Will wateralcoholvinegar or detergent solution will remove permanent marker ink?

yes it can


Is it possible to remove hardness of water by electrolysis?

Yes. The dissolved cations are reduced and form a solid plating on the electrode.


What chemicals do you use to treat for hard water in pool?

You do not treat pool water hardness with chemicals. If you have hard water in your area then you need to know what the allowable maximum of water hardness is before the water needs to be changed. You remove or reduce the hardness in water by draining and refilling the pool. K


What solvents will remove the ink from a permanent marker?

i believe hand sanitzer does.... it depends on the surface. :)

Related questions

What method remove both temporary and permanent hardness of water?

Boiling method


How do you remove the hardness of water?

Boiling water is simple process as it remove all temporary hardness.Permanent hardness need specific filters.


How do you remove hardness of water?

Boiling water is simple process as it remove all temporary hardness.Permanent hardness need specific filters.


What is the difference between temp hard water and permanent hard water?

here two type of hardness 1-temporery 2-permanent *temporery hardness-it is also known as carbonate hardness and alkiliny hardness.it is unstable hardness.it is remove by boiling.it is the due presence of carbonate.


Can sandpaper remove a tattoo?

Sandpaper will remove a temporary tattoo, however this will be extremely painful. Sandpaper will not remove a permanent tattoo. To remove a temporary tattoo, it is more effective (and less painful) to use Acetone or Nail-Polish remover.


What is permanent hardness of water?

Temporary Hardness Temporary hardness is hardness that can be removed by boiling or by the addition of lime (calcium hydroxide). It is caused by a combination of calcium ions and bicarbonate ions in the water. By boiling the water, it promotes the formation of carbonate from the bicarbonate and will precipitate calcium carbonate (the limescale) out of solution, leaving water that is less hard after it has cooled. When it has been heated, less carbon dioxide is able to dissolve into the water. Since there is not enough carbon dioxide around, the reaction cannot take place, and therefore the calcium carbonate will not "dissolve" as readily. Instead, the reaction is forced to re-establish equilibrium, and the solid calcium carbonate is formed. Heating water will remove hardness as long as the limescale that precipitates out is removed. After cooling, if enough time passes the water will pick up carbon dioxide from the air and the reaction will again proceed, allowing the calcium carbonate to "redissolve" in the water. Permanent Hardness Permanent hardness is hardness (mineral content) that cannot be removed by boiling. When this is the case, it is usually caused by the presence of calcium and magnesium sulphates and/or chlorides in the water, which become more soluble as the temperature rises. Despite the name, the hardness of the water can be easily removed using a water softener, or ion exchange column.


How do you get rid of water hardness?

Salt is sometimes used to remove water hardness. Borax and soda are generally used as well to remove water hardness.


How do you remove permanent hardness of water?

The permanent hardness of water is caused by dissolved doubly or triply charged metal cations, which must be removed to remove the permanent hardness. Distillation is a traditional method for removing these and all other ions, but a more economical solution under most circumstances is contacting the water with an ion exchange medium that can replace the doubly or triply charged cations with singly charged cations such as those of sodium and/or potassium. The reason this works is that most doubly or triply charged cations form precipitates with the anionic portion of soaps or anionic detergents, but singly charged cations form more soluble salts that do not precipitate.


Where can you get a temporary tattoo of a death bat?

You cannot get a temporary death bat tattoo anywhere. However, you can get a permanent tattoo, as most tattoo artists can give you one. You can now remove your death bat tattoo once you're done with it.


How can you remove the hardness of water?

No, they tried it on mithbusteres


How hardness of water can be remove?

Hardness of water can be removed with a water softener. These devices pump the water through salt to remove minerals and other particles.


How can you remove permanet makeup?

Some of it you can't remove--permanent eyeliner is too close to the eye to use any tattoo removal method I'm aware of. Permanent makeup is a tattooing process, so any tattoo removal tool (lasers, mostly) will work on it.