Question

Question 23 A sewage lagoon that has a surface area of 10 ha and a depth of receiving 8620.0 m/d of sewage containing 80.0 mg/L of biodegradable 1.2 m is con taminant. At steady state, the effluent from the lagoon must not exceed 22.0 mg/L of biodegradable contaminant. Assuming the lagoon is well mixed and that there are no losses or gains of water in the lagoon other coeff A 0.33 d than the sewage input, what biodegradation reaction rate icient (d) must be achieved for a first-order reaction? 0.19 d1 C 0.25 d1 D 0.41 d1 E 0.46 d1 B

Answer 1