Settling velocity increases with_______________?
B. size of particles
C. depth of tank(Correct)
D. temperature of liquid
B. size of particles
C. depth of tank(Correct)
D. temperature of liquid
B. size of particles
C. depth of tank(Correct)
D. temperature of liquid
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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___________?
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___________? A. 100 ppm
B. 200 ppm(Correct)
C. 300 ppm
D. 400 ppm