A sewage lagoon that has a surface area of 12.5 ha and a depth of 1.38 m is receiving 8200 m³/d of sewage containing 190 mg/L of biodegradable contaminant. At steady state, the effluent from the lagoon must not exceed 25 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 than the sewage input, what biodegradation reaction rate coefficient (k in d-1) must be achieved for a first-order reaction? (Guidance: Use the mass balance equation 2-16 and check using the CMFR [ideal CSTR] and 1st order equation of Table 2.2)

A sewage lagoon that has a surface area of 12.5 ha and a depth of 1.38 m is receiving 8200 m³/d of sewage containing 190 mg/L of biodegradable contaminant. At steady state, the effluent from the lagoon must not exceed 25 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 than the sewage input, what biodegradation reaction rate coefficient (k in d-1) must be achieved for a first-order reaction? (Guidance: Use the mass balance equation 2-16 and check using the CMFR [ideal CSTR] and 1st order equation of Table 2.2)

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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