How Do You Purify Salt Water Naturally?

You can purify salt water naturally using evaporation and condensation. This process mimics the natural water cycle:

Evaporation

1. Sunlight: The sun's heat warms the salt water, causing it to evaporate.
2. Salt Remains: The salt, being a solid, does not evaporate and remains behind.

Condensation

1. Cool Surface: As the evaporated water vapor rises, it encounters a cooler surface (like a leaf, a rock, or the underside of a plastic sheet).
2. Water droplets: The water vapor cools and condenses back into liquid water, forming droplets.

Collecting the Purified Water

1. Collection: The collected water droplets can be gathered in a container placed beneath the cool surface.

Examples of Natural Salt Water Purification

• Fog Catching: Fog harvesting nets capture water droplets from fog, a form of natural condensation.
• Dew Collection: Dew forms on surfaces overnight when the air cools, collecting water droplets that are relatively pure.

Note: While this method can produce drinkable water, it's essential to ensure the source water is not contaminated with harmful pollutants.