Q1) A city discharge 25920 m³/day of sewage into a river whose flow rate is 0.7 m/sec. Determine the deficit in oxygen for a distance 25km downstream, Critical DO, Minimum DO, Critical distance. River Waste 30 BOD5 = 5 mg/l Temperature = 22 °C DO=8 mg/1 K2200 BODZO = 65 mg/l Temperature = 27 °C DO=2 mg/1 = 0.23 day-1 %3| %3D %3D %3D = 0.4 day¬ Velocity of mixing = 0.25 m/sec K1,200 %3D Temp. 18 20 22 23 24 25 26 DO sat 9.17 8.99 8.83 8.53 8.38 9.54 8.22
Q1) A city discharge 25920 m³/day of sewage into a river whose flow rate is 0.7 m/sec. Determine the deficit in oxygen for a distance 25km downstream, Critical DO, Minimum DO, Critical distance. River Waste 30 BOD5 = 5 mg/l Temperature = 22 °C DO=8 mg/1 K2200 BODZO = 65 mg/l Temperature = 27 °C DO=2 mg/1 = 0.23 day-1 %3| %3D %3D %3D = 0.4 day¬ Velocity of mixing = 0.25 m/sec K1,200 %3D Temp. 18 20 22 23 24 25 26 DO sat 9.17 8.99 8.83 8.53 8.38 9.54 8.22
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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