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Wastewater BOD Calculation Problems

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Questions and Answers

What is the volume of the water sample initially taken for BOD determination?

200 cm²

8.1.8 cm³

20 cm³ (correct)

800 cm³

What is the concentration of the thiosulphate solution used in the dissolved oxygen determination?

0.025% (correct)

0.005%

0.008%

0.0025%

At what temperature were the bottles incubated for BOD determination?

20°C (correct)

30°C

25°C

1°C

What is the BOD value of the waste water sample?

3.8 mg/dm³ Signup and view all the answers

What is the BOD value of the waste water sample?

3.8 mg/dm³ Signup and view all the answers

What is the volume of the water sample initially taken for BOD determination?

20 cm³ Signup and view all the answers

What was the temperature at which the bottles were incubated for BOD determination?

20°C Signup and view all the answers

What is the concentration of the thiosulphate solution used in the dissolved oxygen determination?

0.025% Signup and view all the answers

Study Notes

BOD Determination

The volume of the water sample initially taken for BOD determination is 250ml.
The concentration of the thiosulphate solution used in the dissolved oxygen determination is 0.025N.
The bottles were incubated at 20°C for BOD determination.
The BOD value of the waste water sample is found by measuring the oxygen depletion over 5 days.

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Description

Test your knowledge of Biochemical Oxygen Demand (BOD) calculations with this quiz. Solve problems related to dilution, dissolved oxygen determination, and BOD calculation for wastewater samples.