The BODs of a domestic wastewater sample is considered to be about 200 mg/l and the DO in it is measured as 0 mg/L. The laboratory staff are preparing to set up a BOD test to determine the actual BOD of the sample. The DO of the dilution water was measured to be 9 mg/I. Which of the following volume ratios of (total volume of BOD bottle = 300 mL) / (volume of wastewater sample) would be most appropriate to use in setting up the BOD bottle for incubation? Select one among the following: (a) 20/1; (b) 50/1; (c) 100/1; (d) 500/1. Justify your selection
The BODs of a domestic wastewater sample is considered to be about 200 mg/l and the DO in it is measured as 0 mg/L. The laboratory staff are preparing to set up a BOD test to determine the actual BOD of the sample. The DO of the dilution water was measured to be 9 mg/I. Which of the following volume ratios of (total volume of BOD bottle = 300 mL) / (volume of wastewater sample) would be most appropriate to use in setting up the BOD bottle for incubation? Select one among the following: (a) 20/1; (b) 50/1; (c) 100/1; (d) 500/1. Justify your selection
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The BODs of a domestic wastewater sample is considered to be about 200 mg/l and the DO in it is measured as 0 mg/L. The laboratory staff are preparing to set up a BOD test to determine the actual BOD of the sample. The DO of the dilution water was measured to be 9 mg/I.
Which of the following volume ratios of (total volume of BOD bottle = 300 mL) /
(volume of wastewater sample) would be most appropriate to use in setting up the BOD bottle for incubation?
Select one among the following:
(a) 20/1;
(b) 50/1;
(c) 100/1;
(d) 500/1.
Justify your selection
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