It can be done by both natural and mechanical evaporation. Remove the water, collect the salt although there are more steps involved depending on what the salt is to be used for.
Sea salt is produced by evaporating sea water in large salt pans. The largest producers in France are based on the Mediterranean sea, and have huge salt pans where water evaporate under the action of the sun and of the wind.
Salt can be extracted from mines or sea water.
The French Riviera (la Côte d'Azur) is on the Mediterranean Sea which like any other sea contains salt water.
The global average is 3% but it does vary. Seawater has a salinity of arround 3.5 percent. In river deltas and depending on the river water mass this percentage may be eliminated for several kilometers like Amazon river. There is a salt lake in Israel Dead Sea which is the saltiest place on Earth that the salt percentage is 30% approximately.
Sodium chloride is extracted from salt mines or sea waters.
- from sea water - from salt domes The extracted salt is refined by repeated crystallization/recrystallization.
By evaporation of water sodium chloride is obtained.
Sea water is enclosed in a closed area. Water is evaporated and then salt is obtained.
sodium ******************* Salt
Evaporating the water from sea waters crystallized sodium chloride is obtained.
Be evaporation of water crystalized salt is obtained.
Salt can be obtained by evaporation of sea water.
Salt is obtained by the evaporation of sea water followed by purification(processes of dissolution/crystallization/recrystallization).
A Pan A salt -pan A basin A creek
Salt beds. The water is allowed to evaporate from the beds leaving the salt.
Part of table salt is obtained from the evaporation of sea water.
Water is collected, then encouraged to evaporate, leaving the salt behind.