Primary treatment of sewage consists of removal of
A. Large suspended organic solids
B. Oil and grease
C. Sand and girt
D. Floating materials
Answer: Option A
This Question Belongs to Civil Engineering >> Waste Water Engineering
Join The Discussion
Comments ( 2 )
Related Questions on Waste Water Engineering
The effluent of a septic tank is
A. Fit for discharge into any open drain
B. Foul and contains dissolved and suspended solids
C. As good as that from a complete treatment
D. None of these
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope
A. 1 in 5
B. 1 in 10
C. 1 in 15
D. 1 in 20
Drop manholes are the manholes
A. Without entry ladders
B. Without manhole covers
C. With depths more than 3.5 m
D. Having drains at different levels
Primary treatment---- settlable or suspended organic solids.
Secondary tratment ----- dissolved organic.
Final treatment ----- pathogenic bacteria.
D