C10- Using Resources [2] Flashcards
1
Q
What is potable water
A
Water safe to drink
2
Q
How to make salt water potable
A
Desalination and osmosis
3
Q
How to sanitise water during treatment
A
0 Ozone gases
0 chlorine
0 UV
4
Q
How is freshwater treated
A
0 remove water from source
0 filter out debris
0 clean the water
5
Q
What are the negatives of using reverse osmosis
A
It uses high pressures and loads of energy. So it is expensive to run and impractical
6
Q
What does pure mean
A
It contains one chemical
7
Q
How does reverse osmosis work
A
The membranes used only allow water molecules to pass through. Separating the water from impurities
