Q. The primary treatment of waste water involves the removal of
A) Dissolved impurities
B) Stable and particles
C) Toxic substances
D) Harmful bacteria
Explanation
Primary treatment of sewage is the process of removal of small and large, floating and suspended solid from sewage through filtration and sedimentation
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.