Why Aren't Desalination Plants Being Utilized for Water Crisis Prevention?

[Ansuman]

Why no desalination plants ?

Many parts of the world face water crisis today ( especially Africa ) . This can be avoided if the sea water ( which is saline ) is made useful by desalinating it. many desalination techniques have been developed but why is not desalination applied on large scale...i.e. in factories and then send that desalinated water for use ?

 

[Simon Bridge]

Desalination plants are used on a large scale.
i.e. in Australia.

 

[Astronuc]

Many parts of the world face water crisis today ( especially Africa ) . This can be avoided if the sea water ( which is saline ) is made useful by desalinating it. many desalination techniques have been developed but why is not desalination applied on large scale...i.e. in factories and then send that desalinated water for use ?

One should do some research on the desalination industry. There are numerous plants in the MiddleEast, particularly the Gulf States and Saudi Arabia, those nations with considerable wealth/resources, as well as other parts of the world.

http://en.wikipedia.org/wiki/Desalination

http://www.medrc.org/

http://people.uwec.edu/piercech/desalination/middleeast.htm

http://water.nationalacademies.org/basics_part_3.shtml

 

[Ansuman]

Desalination plants are used on a large scale.
i.e. in Australia.

wealthy nations only...can't it be done in poor countries using...u know kinda less wealth

 

[trollcast]

wealthy nations only...can't it be done in poor countries using...u know kinda less wealth

The cost of desalinating water is prohibitively expensive for non-wealthy nations: http://adventure.howstuffworks.com/survival/wilderness/convert-salt-water2.htm

That explains it in a bit less detail or there's this paper:

https://www.fnu.zmaw.de/fileadmin/fnu-files/publication/working-papers/DesalinationFNU41_revised.pdf

 

[Simon Bridge]

There are projects to bring low cost desalination to the masses.
All this is an easy google away.