Problem Solved: Organic Loading Problem - Wastewater Math

This question comes from the California Wastewater grade 2 certification exam sample questions that can be found here: http://www.swrcb.ca.gov/water_issues/programs/operator_certification/docs/2ques.pdf

The problem reads:
A trickling filter wastewater treatment plant receives a flow 1.95 MGD. Calculate the organic loading to this plant if it has a 135 ft diameter trickling filter with a 5 foot media depth and has a primary effluent BOD concentration of 110 mg/L.

a. 0.5 lbs BOD/1000 ft³/day.
b. 2.7 lbs BOD/1000 ft³/day.
c. 25 lbs BOD/1000 ft³/day.
d. 39 lbs BOD/1000 ft³/day.
e. 44 lbs BOD/1000 ft³/day

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Видео Problem Solved: Organic Loading Problem - Wastewater Math канала American Water College