4. A discharge is made to a stream as given in the figure. Please calculate minimum dissolved oxygen concentration in the stream. Assume that there's no nitrification and the flow rate of discharge is negligible with respect to the stream flow. BODS = 520 mg/L Q1 = 18927 m/day C= C, K= 0.25/day (in BOD bottle) Q = 770675 m/day Lu = 0 mg/L C = Cs u = 29 km/day C, = 8.11 mg/L 32 km Ka = 0.553/day K, = 0.377/day

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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4. A discharge is made to a stream as given in the figure. Please calculate minimum dissolved
oxygen concentration in the stream. Assume that there's no nitrification and the flow rate of
discharge is negligible with respect to the stream flow.
BODS = 520 mg/L
Q1 = 18927 m/day
C= C,
K= 0.25/day (in BOD bottle)
Q = 770675 m/day
Lu = 0 mg/L
C = Cs
u = 29 km/day
C, = 8.11 mg/L
32 km
Ka = 0.553/day
K, = 0.377/day
Transcribed Image Text:4. A discharge is made to a stream as given in the figure. Please calculate minimum dissolved oxygen concentration in the stream. Assume that there's no nitrification and the flow rate of discharge is negligible with respect to the stream flow. BODS = 520 mg/L Q1 = 18927 m/day C= C, K= 0.25/day (in BOD bottle) Q = 770675 m/day Lu = 0 mg/L C = Cs u = 29 km/day C, = 8.11 mg/L 32 km Ka = 0.553/day K, = 0.377/day
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