PART ABacteria can be divided according to the dissolved oxygen utilization pattern.Differentiate and explain the three main categories of bacteria involved.1.A BOD analysis was conducted on a raw sewage sample. 300 mL of sample was placedin a 300 mL BOD bottle, and incubated for 5 days at 20°C. Based on your knowledgeon the sample characteristic and BOD procedure, explain about the validity and theoutcome of the analysis.2.3.Explain why oxygen depletion occurs when organic waste is disposed directly in thelake. And mention ONE adverse impact of oxygen depletion.

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Bacteria can be divided according to the dissolved oxygen utilization pattern. Differentiate and explain the three main categories of bacteria involved. 1.

Structural Analysis

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ISBN:9781337630931

Author:KASSIMALI, Aslam.

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Chapter2: Loads On Structures

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Question

PART A
Bacteria can be divided according to the dissolved oxygen utilization pattern.
Differentiate and explain the three main categories of bacteria involved.
1.
A BOD analysis was conducted on a raw sewage sample. 300 mL of sample was placed
in a 300 mL BOD bottle, and incubated for 5 days at 20°C. Based on your knowledge
on the sample characteristic and BOD procedure, explain about the validity and the
outcome of the analysis.
2.
3.
Explain why oxygen depletion occurs when organic waste is disposed directly in the
lake. And mention ONE adverse impact of oxygen depletion.

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