Question

Explain the process of sedimentation and decantations?

Answer 1

Sedimentation:

• Sedimentation is a separation method that is used to separate solid-liquid mixtures in which particle sizes vary from each other.
• In sedimentation the mixture is allowed to stand due to which solid particles settled down which is called sediments.
• The clear liquid formed on top above the sediments, is called supernatant.
• For example, the mixture of sand and water.

Decantations:

• Decantation is the process of separation of liquid from solid and other immiscible liquids
• It is the process of removing the clear liquid at the top above from sediments or liquid below.
• The clear supernatant liquid is poured into another container without disturbing the sediments.
• This process can also be used to separate two liquids that do not mix with each other.
• For example oil and water.