21.The waste water treatment plant has dissolved oxygen concentration of 2.8 mg/l and a discharge rate of 1.56 m3/s. The river that is receiving this waste has D0 equal to 7.9 mg/l, a flow rate of 9.95 m3/s. and a temperature of 20 °C. Assuming complete anainstantaneous mixing. Take the saturated value of dissolved oxygen 20C° -9.09 mg/l.The initial amount of dissolved oxygen in the mixture of waste and river would be: O a. 5.28 mg/l O b. 7.21 mg/l O c. 0.71 mg/l Od. 17.12 g/l
21.The waste water treatment plant has dissolved oxygen concentration of 2.8 mg/l and a discharge rate of 1.56 m3/s. The river that is receiving this waste has D0 equal to 7.9 mg/l, a flow rate of 9.95 m3/s. and a temperature of 20 °C. Assuming complete anainstantaneous mixing. Take the saturated value of dissolved oxygen 20C° -9.09 mg/l.The initial amount of dissolved oxygen in the mixture of waste and river would be: O a. 5.28 mg/l O b. 7.21 mg/l O c. 0.71 mg/l Od. 17.12 g/l
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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