The seqage is treated by aerobic bacteria action in

Related MCQs

• The self cleaning velocity, recommended for Indian conditions, in order to prevent settling down of seqage at the bottom or on the sides of a large sewer is
• Bacteria which can survive with or without free oxygen is known as facultative bacteria.
• 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.)
• In the freshly produced sewage, aerobic activity is maximum.
• Aerobic bacterias takes place in the
• The bacteria which require oxygen for their survival is known as
• The presence of bacteria in water causes
• The bacteria which can survive without oxygen is called
• The total count of bacteria per cubic centimetre for domestic purposes varies from
• The amount of residual chlorine in treated water is determined by the