Do Q2: A municipal wastewater treatment plant discharges secondary condition occurs in the summer when the treated wastewater in summer is found to have a maximum flow rate of 10000 m³/day, a BODs of 30 mg/L, dissolved oxygen concentration of 1.5 mg/L and temperature of 25°C. At upstream of the disposal point the minimum flow in the stream is 0.65 m³/sec with BODs of 3.0 mg/L, dissolved oxygen concentration of 7.0 mg/L and temperature of 22°C. The mixing of wastewater and stream is almost instantaneous at the point of disposal and velocity of the mixture is 0.2 m/sec. The reaeration constant is estimated to be 0.4 per day at 20°C the dissolved oxygen sag curve a (100-km) (D20,40,50,75,100) temperature. Determine and sketch reach of the stream below the discharge?.

Do Q2: A municipal wastewater treatment plant discharges secondary condition occurs in the summer when the treated wastewater in summer is found to have a maximum flow rate of 10000 m³/day, a BODs of 30 mg/L, dissolved oxygen concentration of 1.5 mg/L and temperature of 25°C. At upstream of the disposal point the minimum flow in the stream is 0.65 m³/sec with BODs of 3.0 mg/L, dissolved oxygen concentration of 7.0 mg/L and temperature of 22°C. The mixing of wastewater and stream is almost instantaneous at the point of disposal and velocity of the mixture is 0.2 m/sec. The reaeration constant is estimated to be 0.4 per day at 20°C the dissolved oxygen sag curve a (100-km) (D20,40,50,75,100) temperature. Determine and sketch reach of the stream below the discharge?.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Fluid Materials

In general terms, anything that flows can be termed as a fluid. In other words, a fluid is any substance that cannot resist shear forces and deforms continuously under the application of external shear forces. Fluid materials differ completely from solid materials such as metals and alloys. For instance, if we consider two infinitesimally small cross-sectional areas of fluid materials and solid materials, and apply shear forces to these elements, both the elements will undergo deformation. Upon releasing the shear force, the element of the solid materials will regain its original orientation, but the element of the fluid materials will keep on deforming continuously under the action of the shear force.

Question

Q2: A municipal wastewater treatment plant discharges secondary effluent to a river. The worst
condition occurs in the summer when the treated wastewater in summer is found to have a
maximum flow rate of 10000 m³/day, a BODs of 30 mg/L, dissolved oxygen concentration of 1.5
mg/L and temperature of 25°C. At upstream of the disposal point the minimum flow in the stream is
0.65 m³/sec with BODs of 3.0 mg/L, dissolved oxygen concentration of 7.0 mg/L and temperature of
22°C. The mixing of wastewater and stream is almost instantaneous at the point of disposal and
velocity of the mixture is 0.2 m/sec. The reaeration constant is estimated to be 0.4 per day at 20°C
the dissolved oxygen sag curve a (100-km) (D20,40,50,75,100)
temperature. Determine and sketch
reach of the stream below the discharge?.
Do

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