In sewage treatment, its sedimentation is speeded up by commonly adding
A. Hydrochloric acid
B. Lime
C. Copper sulphate
D. Sodium sulphate
Answer: Option B
This Question Belongs to Chemical Engineering >> Environmental Engineering In CE
Related Questions on Environmental Engineering in CE
Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
A. Mercury
B. Lead
C. Fluoride
D. Arsenic
Smog is not formed due to the presence of __________ in the atmosphere.
A. SO2
B. NOx
C. CO2
D. Any of these
Dose of chlorine for disinfection of water is about __________ mg/litre of water.
A. 0.01
B. 0.1
C. 0.3
D. 1
Join The Discussion