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BOD Test Limitations

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Questions and Answers

What type of wastewater is not suitable for BOD testing?

Domestic wastewater

Agricultural wastewater

Toxic wastewater (correct)

Industrial wastewater

Why is BOD test not suitable for certain types of wastewater?

Presence of heavy metals

Insufficient nutrients

High levels of organic matter

Toxicity of the wastewater (correct)

What is the limitation of BOD test in relation to wastewater toxicity?

It requires a large sample volume

It is not suitable for toxic wastewater (correct)

It is time-consuming

It is expensive

Why is it important to consider the toxicity of wastewater before performing a BOD test?

To avoid inhibition of microorganism growth Signup and view all the answers

What happens when toxic wastewater is subjected to BOD test?

Microorganisms are inhibited Signup and view all the answers

What does the BOD test primarily measure?

Process efficiency Signup and view all the answers

Why is the BOD test performed routinely in wastewater treatment?

To gauge compliance with regulations Signup and view all the answers

Which of the following is not an objective of the BOD test?

Identifying the presence of hazardous chemicals Signup and view all the answers

In what context is the measurement of BOD particularly important?

In assessing the impact of effluents on natural water bodies Signup and view all the answers

What can a high BOD value indicate about a water sample?

Significant organic pollution Signup and view all the answers

What is one of the significant limitations of the BOD test regarding the utilization of organic matter?

The microorganisms go through different phases of utilization of organic matter. Signup and view all the answers

Why might the BOD test be considered time-consuming?

It has a lengthy test duration. Signup and view all the answers

Which of these statements is true about the stoichiometric validity of the BOD test?

The BOD test lacks stoichiometric validity because microorganisms go through different phases. Signup and view all the answers

What is a reason that the BOD test does not always provide accurate stoichiometric results?

Different phases of microorganism utilization of organic matter. Signup and view all the answers

Which factor does not contribute to the limitations of the BOD test?

Short test duration. Signup and view all the answers