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Unformatted text preview: What is the surface area of the clarifier? 3 4. A wastewater treatment plant receives wastewater with S = 350 mg/L BOD 5 , Q = 10 8 L/day, biomass concentration X = 6 g/L, the efficiency of the wastewater treat plant is 90%, determine the volume of the activated sludge reactor. Relevant parameters are: 4 K s = 1000 mg/L, k = 8 mg BOD 5 /mg biomass day, Y = 0.5 mg biomass/mg BOD 5 , k d = 0.05 day1 . 5. A wastewater treatment plant receives wastewater with S = 300 mg/L BOD 5 , Q = 10 8 L/day, c = 8 days, the activated sludge reactor volume is 10 7 L, the wasted sludge is discharged at a rate of 10 5 L/day, determine the discharged wasted sludge concentration. Relevant parameters are: K s = 250 mg/L, k = 8 mg BOD 5 /mg biomass day, Y = 0.5 mg biomass/mg BOD 5 , k d = 0.05 day1 . 5...
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This note was uploaded on 10/29/2011 for the course ENV 4001 taught by Professor Chen during the Summer '11 term at FSU.
 Summer '11
 Chen

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