Chemistry (Water Treatment)

STEP 1:

As the water enters the water treatment works, it passes through a screen. This is made from bars of metal placed close together. These catch large objects such as leaves and twigs

STEP 2:

The water flows into a settlement tank where soil and sand settle at

STEP 3:

Aluminium sulfate and lime are added to the water. Small particles of dirt clump together so that they sink to the bottom of…