Civil Engineering > GATE 2013 > Water Treatment
A student began an 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 the next Monday. On calculation, BOD (i.e., 7-day, 20°C) was found to be 150 mg/L. What would be the 5-day, 20°C BOD (in mg/L)? Assume the value of BOD rate constant (k) at the standard temperature of 20°C as 0.23/day (base e).
Explanation
Correct : 127 to 133
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