The presence of free ammonia in sewage, is detected by___________________?
The digested sludge from septic tanks, is removed after a maximum period of__________________?
Disposal to sewage in large cities, is done in__________________?
The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________?
Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities_________________?
The algae dies out in the zone of_____________________?
In olden days the type of section adopted in trunk and out fall sewers was__________________?
Which one of the following resists hydrogen sulphide corrosion ?
The ratio of design discharge to the surface area of a sedimentation tank is called____________________?
Discrete or granular particles change their_________________ ?
