Question

how sewage can be treated? ​

Answer 1

Answer:

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.

Answer 2

Answer:

$\huge{\boxed{\mathfrak\blue{\fcolorbox{white}{white}{Hello dear}}}}$${\bold{\huge{\red{\underline{\red{A}\red{ns}\red{wer}\red{}}}}}}$

Explanation:

• Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment.

• Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.

$<marquee \: behaviour = alternate><font \: color =purple>ItzBrainlyBoy✅✔️$