Potable water can be produced from fresh water sources such as rivers or lakes.
The typical processes used to treat this water include sedimentation, filtration, and sterilisation.
What is filtration?
Solid particles are allowed to settle to the bottom of a large tank.
Insoluble solids are removed by passing the water through layers of sand and gravel.
Chlorine or ozone is added to the water to destroy harmful microbes.
The water is boiled and the steam is condensed to separate it from dissolved salts.
