Answer :
Answer:
Aluminium sulfate or alum is used as a flocculant to remove colour and turbidity from water supplies. The alum promotes coagulation of fine particles. Once coagulated, they sediment down.
Explanation:
Aluminium sulfate or alum is used as a flocculant to remove colour and turbidity from water supplies. The alum promotes coagulation of fine particles. Once coagulated, they sediment down.
Answer:
remove colour and turbidity from watr supplies. it promoted coagulation if fine particles.