A municipal wastewater treatment plant discharges a maximum flow rate of (5 m³/S), aBOD, @ 20 °C of (55 mg/L), a dissolved oxygen concentration of (2.0 mg/L), andtemperature of (25.5 °C). The stream (upstream from the point of wastewater discharge)is found to have a minimum flow rate of ( 22 m/s), a BOD, @20 °C of (3.0 mg/L), adissolved oxygen concentration of (7.0 mg/L), and temperature of (25.5 °C). Completemixing of the wastewater and stream is almost instantaneous and the velocity of themixture is (0.18 m/s) From the flow regime, the reaeration constant rate is estimated to be(0.3 d') at (20 °C) and the reaction constant rate is estimated to be (0.15 d') at (20 °C)Sketch the dissolved oxygen sag curve a (100-km) (D20.40.80.100) reach of the streambelow the discharge?Temperature (°C2021D. O (mg/L)9.178.9Temperature (°C)2223D.O (mg/L)8.78.6

Given: Qw=5 cumecs ; Qs=22 cumecs; BOD(5) of Waste water=55mg/l ( 200 C) BOD(5) of Stream=3mg/l (…

Answered: Sketch the dissolved oxygen sag curve a…

Engineering

Civil Engineering

Sketch the dissolved oxygen sag curve a (100-km) (D20.40.80.100) reach of the stream below the discharge?

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 14P

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