Answered: The ultimate BOD of the waste water…

The ultimate BOD of the waste water whose 5 day BOD (BOD), and rate constant (base e) are respectively 150 mg/L and 0.23/day is (b) 150 mg/L (d) 220 mg/L (a) 80 mg/L (c) 180 mg/L

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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Mechanical Processes

In civil engineering, the materials have to undergo a series of manufacturing processes before using them in construction and structural applications. These manufacturing processes form the foundation stone of mechanical processes. Some of the civil engineering materials such as bars, metallic beams, metallic columns, surveying equipment, earthmovers, overhead cranes, structural and construction components, and even cement that is the most fundamental construction component need to undergo different manufacturing processes before they are ready to use. These processes are mechanical.

Question

The ultimate BOD of the waste water whose 5 day
BOD (BOD), and rate constant (base e) are
respectively 150 mg/L and 0.23/day is
(a) 80 mg/L
(b) 150 mg/L
(c) 180 mg/L
(d) 220 mg/L

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Answer question 13
If the BOD3 of a wastewater sample is 75 mg/l and reaction rate constantk (base e) is 0.345 per day, the amount of BOD remaining in the given sample after 10 days is