A conventional activated-sludge system treats 11,000 m³/day of wastewater with a BOD of 180 mg/L in an aeration tank with a volume of 3400 m³. The operating conditions are an effluent suspended solids of 20 mg/L, a MLSS concentration maintained in the aeration basin of 2500 mg/L, and an activated-sludge wasting rate of 160 m³/day containing 8000 mg/L. From these data, calculate the aeration period, volumetric BOD loading, F/M ratio, and sludge age.

A conventional activated-sludge system treats 11,000 m³/day of wastewater with a BOD of 180 mg/L in an aeration tank with a volume of 3400 m³. The operating conditions are an effluent suspended solids of 20 mg/L, a MLSS concentration maintained in the aeration basin of 2500 mg/L, and an activated-sludge wasting rate of 160 m³/day containing 8000 mg/L. From these data, calculate the aeration period, volumetric BOD loading, F/M ratio, and sludge age.

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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