Desalination
The process of taking salt out of ocean water to make fresh water is called
Desalination
Expensive, produces brime
Drawbacks
1. Distalation
Heating Method
Membrane, molecules
Holes in the ______ let water ______ pass through
Water vapor
Hot water evaporates and becomes
Cools and condenses Liquid
In a different chamber water vapor _____ and _____ back into _____ fresh water
Salt
Leaves ____ behind
Dissolved
Membrane traps_____ salts
Heated
Ocean water is collected and
2. Revers Osmosis
Pumping, High pressure method
Salt, high
Salt water is ______ at ______ pressure.
Membrane
Through a thin _____.
Fresh water
________ __________ is produced