is the ratio of volume of recirculated sewage to the raw sewage.

Related MCQs

• Which system of collection of sewage is a dry system?
• Which system of collection of sewage is called a dry system?
• is a method where water is used as a medium for the flow of sewage from its production of the treatment unit.
• provides only one sewer to carry both foul sewage and rainwater.
• Which flow is also called as sanitary sewage?
•                is the velocity at which the solid matter in sewage remained in suspended form.
• Primary treatment of sewage consists of removal of
• The most widely used pumps for sewage lifting is
• In preliminary treatment of sewage, the operation which takes place, is
• How many types of trickling filters are used in sewage treatment?