A city discharges 100 cumecs of sewage into a river, which is fully saturated with oxygen and flowing at the rate of 1500 cumec during its lean days with a velocity of 0.1 m/sec. The 5 days BOD of sewage at the given temperature is 280 mg/1. Assume coefficient of purification of the stream (f) as 4.0 and coefficient of deoxygenation (ko base 10) is 0.1 day1. The critical dissolved oxygen deficit is the river is: [Assume D0 of sewage is nil.] [Take river water dissolved oxygen as 9.2 mg/1]

A city discharges 100 cumecs of sewage into a river, which is fully saturated with oxygen and flowing at the rate of 1500 cumec during its lean days with a velocity of 0.1 m/sec. The 5 days BOD of sewage at the given temperature is 280 mg/1. Assume coefficient of purification of the stream (f) as 4.0 and coefficient of deoxygenation (ko base 10) is 0.1 day1. The critical dissolved oxygen deficit is the river is: [Assume D0 of sewage is nil.] [Take river water dissolved oxygen as 9.2 mg/1]

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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