Calculate the ultimate bod

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Reference no: EM131012611

A BOD test was conducted on the unchlorinated effluent of a municipal treatment plant. The wastewater portion added to a 300 mL BOD bottle was 8 ml. The dissolved oxygen values and incubation periods are listed below.

a. Determine the 5-day BOD value. (BODs = 178 ppm)

b. Given a rate constant of 0.2 day^-1, calculate the ultimate BOD.

c. Plot the theoretical vs. actual BOD vs. time on excel. The x-axis should be time and should go from 0 to 25 days. The actual data points should be represented by points while the theoretical BOD vs. time should be represented by a line. Please label both axes and provide a title for the graph.

Bottle number	Initial DP, mg/L	Time, days	Final DO,mg/L
1	8.4	0	8.4
2	8.4	0	8.4
3	8.4	1	6.2
4	8.4	1	5.9
5	8.4	2	5.2
6	8.4	2	5.2
7	8.4	3	4.4
8	8.4	3	4.6
9	8.4	5	3.8
10	8.4	5	3.5

Reference no: EM131012611

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