A student began experiment for determination of 5-day, 20 °C BOD on Monday. Since the 5th day fell on Saturday, the final DO readings were taken on next Monday. On calculation, BOD (i.e. 7 days, 20 °C) was found to be 150 mg/L. What would be the 5-day, 20 °C BOD (in mg/L)? Assume value of BOD rate constant (k) at standard temperature of 20 °C as 0.23 / day (base e)..

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A student began experiment for determination of 5-day, 20 °C BOD on Monday. Since the 5th day
fell on Saturday, the final DO readings were taken on next Monday. On calculation, BOD (i.e. 7 days,
20 °C) was found to be 150 mg/L. What would be the 5-day, 20 °C BOD (in mg/L)? Assume value of
BOD rate constant (k) at standard temperature of 20 °C as 0.23 / day (base e).
Transcribed Image Text:A student began experiment for determination of 5-day, 20 °C BOD on Monday. Since the 5th day fell on Saturday, the final DO readings were taken on next Monday. On calculation, BOD (i.e. 7 days, 20 °C) was found to be 150 mg/L. What would be the 5-day, 20 °C BOD (in mg/L)? Assume value of BOD rate constant (k) at standard temperature of 20 °C as 0.23 / day (base e).
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