Waste And reservoir water

Question 1

What is the process of treating waste water

Answer 1

1) Large solids removed
2) Put in a settlement tank
3) Anaerobic breakdown
4) Aerobic breakdown
5) Water passed out to source

Question 2

What is the process to treat reservoir water

Answer 2

1) Large debris filters-stops fish+logs from passing through
2) sand,gravel and pebble tank
3) clumping agents-group small particles together so they can be filtered
4) add chlorine or flourine

(Carbon filters) (uv)
= potable water

Question 3

Hard water

Answer 3

Ca2+ ions / mg 2+ ions
Heavy metal ions
Doesn’t lather
Better for health e.g bones heart teeth

Question 4

Soft water

Answer 4

Na + ions
Salty
Better financially 
Less good for health due to salt
Tastes better