Question

how water can be made safe for drinking​

Answer 1

Boil the water and then drink it.

Answer 2

even distilled water is not safe for drinking. it has many chemicals mixed within it during it's treatment. the best way to drink safe water is by boiling it. boiling of water kills are microbes. and it's chemical free. but before boiling, first make sure there's no impurities like dirt particles etc mixed in the water. if there's, then filter the water and then boil it. and you'll the purest water xD