Question

Don't explain The last step in waste water treatment is. process options are here correct answer should be
a). Biological
b). Mechanical
c). Chemical
d). Physical​

Answer 1

Answer:

chemical treatment is the right answer

I want to reach next rank so please mark me as brainliest

Answer 2

$\huge{\boxed{\mathcal\pink{\fcolorbox{red}{purple}{Solution:-}}}}$

$\huge{\boxed{\mathcal\pink{\fcolorbox{green}{purple}{Sedimentation}}}}$

The last step of primary treatment involves sedimentation, which causes the physical settling of matter. Sedimentation often uses chemicals like flocculants and coagulants.

$\huge{\boxed{\mathcal\red{\fcolorbox{pink}{blue}{THANKS:-}}}}$