Q.107 An activated sludge system is operating under equilibrium conditions with following information: Waste water related data: Flow rate = 800 m/hour Influent BOD = 125 mg// Effluent BOD = 10 mg/I Aeration tank related data: Hydraulic retention time 7.5 hours Mean-cell residence time 300 hour Volume = 500 m Mixed liquor suspended solids = 3000 mg// Effluent suspended solids 2000 mg/! Food-to-biomass (F/M) ratio for the aeration tank is (a) 0.2 day- (c) 1.6 day- (b) 0.6 day1 (d) 3.2 day

Q.107 An activated sludge system is operating under equilibrium conditions with following information: Waste water related data: Flow rate = 800 m/hour Influent BOD = 125 mg// Effluent BOD = 10 mg/I Aeration tank related data: Hydraulic retention time 7.5 hours Mean-cell residence time 300 hour Volume = 500 m Mixed liquor suspended solids = 3000 mg// Effluent suspended solids 2000 mg/! Food-to-biomass (F/M) ratio for the aeration tank is (a) 0.2 day- (c) 1.6 day- (b) 0.6 day1 (d) 3.2 day

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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