(A) Sedimentation
(B) Skimming off
(C) Chlorination
(D) Biological oxidation
(A) Sedimentation
(B) Skimming off
(C) Chlorination
(D) Biological oxidation
| Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *