A 1000 L volume aerobic complete-mixed reactor without recycle receives a 500 L/d wastewater flow and has an effluent soluble COD =10 mg/L. For an influent soluble COD of 1000 mg/L and reactor O₂ uptake rate of 10 mg/L/hour, determine the

(a) The detention time of the reactor in days

(b) Oxygen used per day in g/d

(c) Effluent volatile suspended solids concentration (assuming biomass oxygen equivalent of 1.42 g O2/VSS)

(d)Observed yield in VSS/g bsCOD removed

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