A town on the bank of river Ganga discharges 18000 m³ day-¹ of treated wastewater into the river. The treated wastewater has a BOD, of 20 mg L-1 and a BOD decay constant of 0.12 day-¹ at 20°C. The river has a flow rate of 0.43 m³ sec-1 and an ultimate BOD of 5.0 mg L-1. The DO of the river is 6.0 mg L-1 and the DO of the wastewater is 0.4 mg L-1. Compute the DO and initial ultimate BOD in the river, immediately after mixing.

A town on the bank of river Ganga discharges 18000 m³ day-¹ of treated wastewater into the river. The treated wastewater has a BOD, of 20 mg L-1 and a BOD decay constant of 0.12 day-¹ at 20°C. The river has a flow rate of 0.43 m³ sec-1 and an ultimate BOD of 5.0 mg L-1. The DO of the river is 6.0 mg L-1 and the DO of the wastewater is 0.4 mg L-1. Compute the DO and initial ultimate BOD in the river, immediately after mixing.

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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