The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?

Related MCQs

• The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?
• The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?
• The decomposition of the matter produces into ___________ and in presence of ____________
• In which process of water softening, ion exchange phenomenon takes place?
• The type of solids which floats in sewage is __________
• What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?
• The presence of free ammonia in sewage represents ____________
• ________ is used to find the D.O content of sewage.
• The permissible dose of chloride in domestic sewage is __________
• What is the monthly concentration of solids produced by secondary sewage effluent?