What is the minimum quantity of dissolved oxygen that should be present in the treated sewage?

Related MCQs

• The temperature of sewage increases. What will be the effect on the dissolved oxygen in sewage?
• The maximum quantity of dissolved oxygen present in wastewater is called __________
• The presence of which of the following in sewage indicates nitrogen content before decomposition of sewage?
• In a flowing stream, the breakdown of degradable wastes by bacteria ________ dissolved oxygen.
• How many oxygen atoms are present in the ozone?
• The presence of free ammonia in sewage represents ____________
• The type of solids which floats in sewage is __________
• ________ is used to find the D.O content of sewage.
• The permissible dose of chloride in domestic sewage is __________
• The decomposition of sewage takes place, causing a pungent smell. Which of the following causes the pungent smell?