15 Questions
What type of wastewater is not suitable for BOD testing?
Toxic wastewater
Why is BOD test not suitable for certain types of wastewater?
Toxicity of the wastewater
What is the limitation of BOD test in relation to wastewater toxicity?
It is not suitable for toxic wastewater
Why is it important to consider the toxicity of wastewater before performing a BOD test?
To avoid inhibition of microorganism growth
What happens when toxic wastewater is subjected to BOD test?
Microorganisms are inhibited
What does the BOD test primarily measure?
Process efficiency
Why is the BOD test performed routinely in wastewater treatment?
To gauge compliance with regulations
Which of the following is not an objective of the BOD test?
Identifying the presence of hazardous chemicals
In what context is the measurement of BOD particularly important?
In assessing the impact of effluents on natural water bodies
What can a high BOD value indicate about a water sample?
Significant organic pollution
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.
Why might the BOD test be considered time-consuming?
It has a lengthy test duration.
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.
What is a reason that the BOD test does not always provide accurate stoichiometric results?
Different phases of microorganism utilization of organic matter.
Which factor does not contribute to the limitations of the BOD test?
Short test duration.
This quiz covers the limitations of the Biochemical Oxygen Demand (BOD) test, including its lack of stoichiometric validity and time-consuming nature.
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