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Two trickling filters operating in parallel are being designed to treat the domestic wastewater from a town of 5500 people where the average per-capita wastewater generation is 450 liters per person p...

Two trickling filters operating in parallel are being designed to treat the domestic wastewater from a town of 5500 people where the average per-capita wastewater generation is 450 liters per person per day. A plastic trickling filter media and filter height of 3.5 m have been selected. The influent BOD5 is 120 mg/L and the facility must meet an NPDES permit limiting effluent BOD5 to 35 mg/L. The filter media constant (n) is 0.67 and the BOD decay constant for the design temperature of 15°C is 1.5 (m/d)n /m.

(13 points) Calculate the tank diameter of each trickling filter that is required to meet the design criteria. Report the diameter in meters.

The answer is supposed to be 13.5 m. we have no idea how to get there, please show all steps formulas and work. Thank you

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Answer #1

Cin 35 mgt lcost volume 66, filer media -12)ト 24 (.ul6 ( v) 2990, u0SMP . Aveos rach media 2990-Vo 85% (10 ( ng 2. A .. d- 33

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