Question

different components of slow sand filter include​

Answer 1

Answer:

Hence it contains the following layers from top to bottom:

Supernatant water – 1 to 1.5 m.

Sand bed – 1.2 m.

Gravel support – 0.30 m.

Filter bottom – 0.16 m

Answer 2

Explanation:

Hence it contains the following layers from top to bottom:

• Supernatant water – 1 to 1.5 m.
• Sand bed – 1.2 m.
• Gravel support – 0.30 m.
• Filter bottom – 0.16 m.