Biological action is used in

Related MCQs

• 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
• The most commonly used chemical for dechlorination of water is
• The sand, used for filteration, should not loose weight more than
• For a city or town with roads of rectangular pattern, the type of layout used for the distribution of pipes is
• The type of joint to be used in pipes depends upon the
• Grit chambers are used to remove sand and other organic matter from sewage.
• The pipe joint commonly used in pumping stations is
• Egg-shaped sewers are generally used for
• Copper sulphate is the most common chemical used for controlling