Poorly treated municipal wastewater is continuously discharged directly into a lake. The discharge from the wastewater plant into the lake occurs at a flow of Qa = 1 m3/hr. The concentration of phosphate (PO4, M = 95 g/mol) in the discharge flow (C,x.d) that is decaying with first-order kinetics is 100 mg/L. The lake is a well-mixed water body of 100 m3. (Phosphate is naturally uptaken by algae with a first- order decay rate constant equal to 0.20/day.) The concentration of phosphate in the incoming river Cx.r) is 10 mg P/L. The incoming river flow rate is Q, = 10 m3/hr. a) Which of the following equations represent the correct mass balance eguation?

Poorly treated municipal wastewater is continuously discharged directly into a lake. The discharge from the wastewater plant into the lake occurs at a flow of Qa = 1 m3/hr. The concentration of phosphate (PO4, M = 95 g/mol) in the discharge flow (C,x.d) that is decaying with first-order kinetics is 100 mg/L. The lake is a well-mixed water body of 100 m3. (Phosphate is naturally uptaken by algae with a first- order decay rate constant equal to 0.20/day.) The concentration of phosphate in the incoming river Cx.r) is 10 mg P/L. The incoming river flow rate is Q, = 10 m3/hr. a) Which of the following equations represent the correct mass balance eguation?

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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