In the freshly produced sewage, aerobic activity is maximum.

Related MCQs

• When the sewage is to be distributed over a level area surrounded by dykes (i.e. trenches), the mothod of sewage used is called
• The amount of oxygen required for the biological decomposition of dissovled organic solids to occur under aerobic conditions is called bio-chemical oxygen demand (B.O.D.)
• The seqage is treated by aerobic bacteria action in
• Aerobic bacterias takes place in the
• Land disposal of sewage will be favourable where
• Grit chambers are used to remove sand and other organic matter from sewage.
• The activated sludge process of sewage treatment
• The natural process in which the oxygen of water of streams is consumed by sewage and at the same time, it is replenished (filled again) by the atmosphere, is known as
• In secondary treatment of sewage, the operation which takes place is
• Grit chambers of a sewage plant are usually changed after