Comparison in water treatment methodsL Flashcards
1
Q
How is ground water aquifers easiest way to make potable water?
A
= Safe to drink once treated with chlorine
= but can sometimes be polluted by fertilisers
= water from aquifers need to be tested
2
Q
How is potable water from sewage treated?
A
= many purification steps
= done when water is scarce
3
Q
How easy is it to make potable water from salt water?
A
= Desalination
= requires energy
= expensive
