Q. Physical removal of large and small stable solid particles from the sewage through filtration and sedimentation is called
A) Primary treatment
B) Secondary treatment
C) Tertiary treatment
D) Quaternary treatment
Explanation
Primary treatment of sewage is mostly mechanical and concerned mainly with the removal of coarse solid material through filtration and sedimentation
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.