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?

<p>To avoid inhibition of microorganism growth (B)</p> Signup and view all the answers

What happens when toxic wastewater is subjected to BOD test?

<p>Microorganisms are inhibited (D)</p> Signup and view all the answers

What does the BOD test primarily measure?

<p>Process efficiency (C)</p> Signup and view all the answers

Why is the BOD test performed routinely in wastewater treatment?

<p>To gauge compliance with regulations (C)</p> Signup and view all the answers

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

<p>Identifying the presence of hazardous chemicals (D)</p> Signup and view all the answers

In what context is the measurement of BOD particularly important?

<p>In assessing the impact of effluents on natural water bodies (B)</p> Signup and view all the answers

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

<p>Significant organic pollution (B)</p> Signup and view all the answers

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

<p>The microorganisms go through different phases of utilization of organic matter. (B)</p> Signup and view all the answers

Why might the BOD test be considered time-consuming?

<p>It has a lengthy test duration. (D)</p> Signup and view all the answers

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

<p>The BOD test lacks stoichiometric validity because microorganisms go through different phases. (B)</p> Signup and view all the answers

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

<p>Different phases of microorganism utilization of organic matter. (C)</p> Signup and view all the answers

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

<p>Short test duration. (A)</p> Signup and view all the answers

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