a. A stream has an average stream velocity of 0.92 [m/s] and an average depth of 1 [m]. Calculate the reaeration coefficient (Kr) at 20 C. b. Assume atmospheric pressure, 20° C temperature, and no stream contamination. Suppose the stream has an average chloride concentration of 5000 [mg/I]. What is the expected dissolved oxygen saturation concentration for the stream? c. With the same assumptions and conditions, the stream is receiving BOD contamination from an unknown source. If you have measured the dissolved oxygen (DO) in this stream and your DO probe reads 6.62 [mg/I]. How much is the DO deficit for this stream?

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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a. A stream has an average stream velocity of 0.92 [m/s]
and an average depth of 1 [m]. Calculate the reaeration
coefficient (Kr) at 20 C.
b. Assume atmospheric pressure, 20° C temperature, and
no stream contamination. Suppose the stream has an
average chloride concentration of 5000 [mg/I]. What is
the expected dissolved oxygen saturation concentration
for the stream?
c. With the same assumptions and conditions, the stream
is receiving BOD contamination from an unknown source.
If you have measured the dissolved oxygen (DO) in this
stream and your DO probe reads 6.62 [mg/l]. How much
is the DO deficit for this stream?
Transcribed Image Text:a. A stream has an average stream velocity of 0.92 [m/s] and an average depth of 1 [m]. Calculate the reaeration coefficient (Kr) at 20 C. b. Assume atmospheric pressure, 20° C temperature, and no stream contamination. Suppose the stream has an average chloride concentration of 5000 [mg/I]. What is the expected dissolved oxygen saturation concentration for the stream? c. With the same assumptions and conditions, the stream is receiving BOD contamination from an unknown source. If you have measured the dissolved oxygen (DO) in this stream and your DO probe reads 6.62 [mg/l]. How much is the DO deficit for this stream?
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