A river with a trapezoidal cross-section lined with concrete, Manning roughness (0.025), water depth is 1.4 m, bed width 14m, bed slope is 20cm/Km and a side slope of 1:1 with pollutant concentration of 20 mg/l. The river receives a discharge input from a hospital of 10MGD with pollutant concentration of 200mg/1./After 3 Km from this point, the river receives a discharge of 70 cfs with pollutant concentration of 50mg/l from a factory input at the same river bank, while at about 5Km from this point a discharge of 7 MGD from another industry carrying a pollutant concentration of 20mg/l input the river at the opposite side of the river. Find the pollutant concentration downstream and plot a profile for the pollutant dispersion along the river section. Find the distance for complete mixing.
A river with a trapezoidal cross-section lined with concrete, Manning roughness (0.025), water depth is 1.4 m, bed width 14m, bed slope is 20cm/Km and a side slope of 1:1 with pollutant concentration of 20 mg/l. The river receives a discharge input from a hospital of 10MGD with pollutant concentration of 200mg/1./After 3 Km from this point, the river receives a discharge of 70 cfs with pollutant concentration of 50mg/l from a factory input at the same river bank, while at about 5Km from this point a discharge of 7 MGD from another industry carrying a pollutant concentration of 20mg/l input the river at the opposite side of the river. Find the pollutant concentration downstream and plot a profile for the pollutant dispersion along the river section. Find the distance for complete mixing.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A river with a trapezoidal cross-section lined with concrete, Manning roughness (0.025), water
depth is 1.4 m, bed width 14m, bed slope is 20cm/Km and a side slope of 1:1 with pollutant
concentration of 20 mg/l. The river receives a discharge input from a hospital of 10MGD with
pollutant concentration of 200mg/1./After 3 Km from this point, the river receives a discharge
of 70 cfs with pollutant concentration of 50mg/! from a factory input at the same river bank,
while at about 5Km from this point a discharge of 7 MGD from another industry carrying a
pollutant concentration of 20mg/l input the river at the opposite side of the river. Find the
pollutant concentration downstream and plot a profile for the pollutant dispersion along the
river section. Find the distance for complete mixing.
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