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A vegetable processing plant discharges its wastewater to a treatment pond with an area of 10,000 m³ and a depth of 3 m. The wastewater has an organic content of 350 mg/L and a flow of 1.8 m³/min. Laboratory studies show that the waste decays according to first order kinetics with a rate constant of 0.031/h at 20 °C. (a) What is the hydraulic detention time (0)? (b) If the pond is assumed to be completely mixed, what is the steady state effluent concentration in winter when water temperature is 10°C? The temperature correction coefficient (0) is 1.072

A vegetable processing plant discharges its wastewater to a treatment pond with an area of 10,000 m³ and a depth of 3 m. The wastewater has an organic content of 350 mg/L and a flow of 1.8 m³/min. Laboratory studies show that the waste decays according to first order kinetics with a rate constant of 0.031/h at 20 °C. (a) What is the hydraulic detention time (0)? (b) If the pond is assumed to be completely mixed, what is the steady state effluent concentration in winter when water temperature is 10°C? The temperature correction coefficient (0) is 1.072

Structural Analysis
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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A vegetable processing plant discharges its wastewater to a treatment pond with an area of 10,000 m³ and a depth of 3 m. The wastewater has an organic content of 350 mg/L and a flow of 1.8 m³/min. Laboratory studies show that the waste decays according to first order kinetics with a rate constant of 0.031/h at 20 °C. (a) What is the hydraulic detention time (0)? (b) If the pond is assumed to be completely mixed, what is the steady state effluent concentration in winter when water temperature is 10°C? The temperature correction coefficient (0) is 1.072
Transcribed Image Text:A vegetable processing plant discharges its wastewater to a treatment pond with an area of 10,000 m³ and a depth of 3 m. The wastewater has an organic content of 350 mg/L and a flow of 1.8 m³/min. Laboratory studies show that the waste decays according to first order kinetics with a rate constant of 0.031/h at 20 °C. (a) What is the hydraulic detention time (0)? (b) If the pond is assumed to be completely mixed, what is the steady state effluent concentration in winter when water temperature is 10°C? The temperature correction coefficient (0) is 1.072
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