4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2) (CH2)4 NH2], the C-ThOD required is around: a) 538 mg 02/L b) 759 mg 02/L c) 642 mg 02/L d) 862 mg O₂/L 4.5.A circular clarifier has a diameter of 60 ft. If the primary effluent flow is 2 MGD, what is the surface overflow rate in gpd/ft²? a) 1080 gpd/ft² b) 708 gpd/ft² c) 845 gpd/ft² d) 777 gpd/ft² 4.6.A stream with a velocity of 0.5 m/s, de-oxygenating rate of 0.2/day, and re-oxygenation rate of 0.3/day. The ultimate BOD in the discharge point is 30 mg/L. The stream is in a saturation level before outfall with a temperature of 20°C. Assume same temperature, what is the DO in 5 km d) 12.3 mg/L downstream? a) 8.4 mg/L b) 9.1 mg/L c) 10.2 mg/L
4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2) (CH2)4 NH2], the C-ThOD required is around: a) 538 mg 02/L b) 759 mg 02/L c) 642 mg 02/L d) 862 mg O₂/L 4.5.A circular clarifier has a diameter of 60 ft. If the primary effluent flow is 2 MGD, what is the surface overflow rate in gpd/ft²? a) 1080 gpd/ft² b) 708 gpd/ft² c) 845 gpd/ft² d) 777 gpd/ft² 4.6.A stream with a velocity of 0.5 m/s, de-oxygenating rate of 0.2/day, and re-oxygenation rate of 0.3/day. The ultimate BOD in the discharge point is 30 mg/L. The stream is in a saturation level before outfall with a temperature of 20°C. Assume same temperature, what is the DO in 5 km d) 12.3 mg/L downstream? a) 8.4 mg/L b) 9.1 mg/L c) 10.2 mg/L
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2) (CH2)4
NH2], the C-ThOD required is around:
a) 538 mg 02/L b) 759 mg 02/L
c) 642 mg 02/L
d) 862 mg O₂/L
4.5.A circular clarifier has a diameter of 60 ft. If the primary effluent flow is 2 MGD, what is the surface
overflow rate in gpd/ft²?
a) 1080 gpd/ft²
b) 708 gpd/ft²
c) 845 gpd/ft²
d) 777 gpd/ft²
4.6.A stream with a velocity of 0.5 m/s, de-oxygenating rate of 0.2/day, and re-oxygenation rate of
0.3/day. The ultimate BOD in the discharge point is 30 mg/L. The stream is in a saturation level
before outfall with a temperature of 20°C. Assume same temperature, what is the DO in 5 km
d) 12.3 mg/L
downstream? a) 8.4 mg/L
b) 9.1 mg/L
c) 10.2 mg/L](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F099c6360-c664-42fe-985e-553e69c816aa%2Faf4b5f21-fbed-4d14-a6b6-79b0e6f65ba9%2F20tb5z_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2) (CH2)4
NH2], the C-ThOD required is around:
a) 538 mg 02/L b) 759 mg 02/L
c) 642 mg 02/L
d) 862 mg O₂/L
4.5.A circular clarifier has a diameter of 60 ft. If the primary effluent flow is 2 MGD, what is the surface
overflow rate in gpd/ft²?
a) 1080 gpd/ft²
b) 708 gpd/ft²
c) 845 gpd/ft²
d) 777 gpd/ft²
4.6.A stream with a velocity of 0.5 m/s, de-oxygenating rate of 0.2/day, and re-oxygenation rate of
0.3/day. The ultimate BOD in the discharge point is 30 mg/L. The stream is in a saturation level
before outfall with a temperature of 20°C. Assume same temperature, what is the DO in 5 km
d) 12.3 mg/L
downstream? a) 8.4 mg/L
b) 9.1 mg/L
c) 10.2 mg/L
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