7-24. The town of Pittsburgh discharges 0.126 m’/s of treated wastewater into Cherry Creek. The BOD, of the wastewater is 34 mg/L. Cherry Creek has a 10-year, 7-day low flow of 0.126 m³/s. Upstream of the wastewater out- fall from Pittsburgh, the BOD, is 1.2 mg/L. The BOD rate constants k are 0.222 d-' and 0.090 d¯' for the wastewater and creek respectively. The temperature of both the creek and the municipal wastewater is 20°C. Cal- culate the initial ultimate BOD after mixing.

7-24. The town of Pittsburgh discharges 0.126 m’/s of treated wastewater into Cherry Creek. The BOD, of the wastewater is 34 mg/L. Cherry Creek has a 10-year, 7-day low flow of 0.126 m³/s. Upstream of the wastewater out- fall from Pittsburgh, the BOD, is 1.2 mg/L. The BOD rate constants k are 0.222 d-' and 0.090 d¯' for the wastewater and creek respectively. The temperature of both the creek and the municipal wastewater is 20°C. Cal- culate the initial ultimate BOD after mixing.

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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7-24. The town of Pittsburgh discharges 0.126 m³/s of treated wastewater into
Cherry Creek. The BOD, of the wastewater is 34 mg/L. Cherry Creek has
a 10-year, 7-day low flow of 0.126 m³/s. Upstream of the wastewater out-
fall from Pittsburgh, the BOD, is 1.2 mg/L. The BOD rate constants k are
0.222 d-' and 0.090 d¯' for the wastewater and creek respectively. The
temperature of both the creek and the municipal wastewater is 20°C. Cal-
culate the initial ultimate BOD after mixing.

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