Purifying Seawater by Distillation

Purifying Seawater by Distillation

1. Consume seawater

   • People cannot survive on seawater alone
     • It is too salty
   • Human Kidneys
     • Can only make urine
       • Is less salty than seawater

2. Desalination

   • Turns seawater into drinking water
   • Purification of water
     • Removal of the salt
   • Ocurrs during water cycle
     • Heat from sun
       • Evaporates water
       • Doesn't evaporates other impurities
     • Pure water vapor rises
       • Comes in contact with cooler air
         • Condenses to form clouds
           • Falls as rain or snow

3. Distillation

   • Mimics this natural process
     • Separates liquid mixtures