Desalination is the process of extraction of salts (generally sodium chloride) from sea water to obtain drinkable water, water for indistry, water for agriculture.
But desalination can be applied to petroleum, soils an other materials.
Desalination (to desalinate) means to take out the salt. If you boil salt water, the water turns to gas and leaves the salt behind.
I want to desalinate this water.
As yet is seems that it is not possible to do so. This does not mean that it can not be done.
desalinate sea water
Either you melt ice, or you desalinate sea water.
easy .. do nothingg
The price is different for each plant.
because it has less rain
The excess salt is excreted via the gills.
None: You can desalinate it, distill it, but you cannot drink seawater.
You cant filter it out. you desalinate water through evaporating the water out of the salt.
For the desalination by distillation - the boiling point of water. For other methods the temperature is not so important.