Question

In: Chemistry

An agricultural runoff diversion system discharges into a small river. The runoff has thefollowing characteristics: flow...

An agricultural runoff diversion system discharges into a small river. The runoff has thefollowing characteristics: flow = 100 m3/min, DO = 3 mg/L, and BOD = 150 mg/L. The riverflows at1000 m3/min and has zero BOD and 9 mg/L of DO. Given that saturation DO is 9.5mg/L, kd is 0.4 day-1, and the ka is 0.7 day-1, calculate the DO and BOD remaining in the stream1.5 days after the discharge event.

Solutions

Expert Solution


Related Solutions

Wastewater plant discharges effluent in river from the center. Characteristics of River and wastewater is given...
Wastewater plant discharges effluent in river from the center. Characteristics of River and wastewater is given in Table below. Velocity of River V= 10 cm/s, After intial mix, Dissolved-oxygen concentration C0 = 9.5 mg/L, Saturation Dissolved-oxygen concentration at 15 C Cs= 11 mg/L, Deoxgenation rate at 20 C k1,20 = 0.55 per day, Reoxgenation rate at 20 C k2,200= 0.85 per day Temperature of River Tr=12 C BOD load L0=25 mg/L How long (in days) it takes to reach DO...
An industrial plant discharges water into a river. An environmental protection agency has studied the discharged...
An industrial plant discharges water into a river. An environmental protection agency has studied the discharged water and found the lead concentration in the water (in micrograms per litre) has a normal distribution with population standard deviation σ = 0.7 μg/l. The industrial plant claims that the mean value of the lead concentration is 2.0 μg/l. However, the environmental protection agency took 10 water samples and found that the mean is 2.56 μg/l. A hypothesis test is carried out to...
- Why might a firm’s cash flow characteristics influence the chosen disbursement system? - How are...
- Why might a firm’s cash flow characteristics influence the chosen disbursement system? - How are controlled disbursement accounts and ZBAs funded?
- Why might a firm’s cash flow characteristics influence the chosen disbursement system? - How are...
- Why might a firm’s cash flow characteristics influence the chosen disbursement system? - How are controlled disbursement accounts and ZBAs funded?
The city of Imaginopolis, which is located near White River, has an elaborate system of levees...
The city of Imaginopolis, which is located near White River, has an elaborate system of levees to protect the city from flooding during high-water events. The levees were built over 50 years ago and many of them are showing signs of structural distress. Using a systems perspective, how would you draw up a program to rehabilitate the levee system under budgetary constraints over a 5-year period?
A 360-m-wide river has a uniform flow speed of 1.5 m/s through a jungle and toward...
A 360-m-wide river has a uniform flow speed of 1.5 m/s through a jungle and toward the east. An explorer wishes to leave a small clearing on the south bank and cross the river in a powerboat that moves at a constant speed of 5.8 m/s with respect to the water. There is a clearing on the north bank 65 m upstream from a point directly opposite the clearing on the south bank. (a) At what angle, measured relative to...
1. The economy of Asgard has a well developed financial system, where resources flow to the...
1. The economy of Asgard has a well developed financial system, where resources flow to the capital investments with the highest marginal product. The economy of Titan has a less developed financial system that excludes some would be investors. A. Which nation would you expect to have a higher level of total factor productivity? Explain. B. Suppose the two economies have the same saving rate, depreciation rate, and rate of technological progress. According to the Solow growth model, how does...
The economy of Asgard has a well developed financial system, where resources flow to the capital...
The economy of Asgard has a well developed financial system, where resources flow to the capital investments with the highest marginal product. The economy of Titan has a less developed financial system that excludes some would be investors. Which nation would you expect to have a higher level of total factor productivity? Explain why. Lastly, Suppose the two economies have the same saving rate, depreciation rate, and rate of technological progress... According to the Solow growth model, how does output...
The economy of Asgard has a well developed financial system, where resources flow to the capital...
The economy of Asgard has a well developed financial system, where resources flow to the capital investments with the highest marginal product. The economy of Titan has a less developed financial system that excludes some would be investors. Which nation would you expect to have a higher level of total factor productivity? Explain why. Lastly, Suppose the two economies have the same saving rate, depreciation rate, and rate of technological progress... According to the Solow growth model, how does output...
The economy of Asgard has a well developed financial system, where resources flow to the capital...
The economy of Asgard has a well developed financial system, where resources flow to the capital investments with the highest marginal product. The economy of Titan has a less developed financial system that excludes some would be investors. Which nation would you expect to have a higher level of total factor productivity? Explain. Suppose the two economies have the same saving rate, depreciation rate, and rate of technological progress. According to the Solow growth model, how does output per worker,...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT