A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called________________?
Scour valves are provided ______________?
Facultative bacteria are able to work in________________?
The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is______________?
In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be___________?
The rate of BOD exerted at any time is_____________?
Standard BOD is measured at________________?
Sewage treatment units are normally designed for______________?
The pathogens can be killed by_______________?
The type of sewer which is suitable for both combined and separate system is_____________?
