In water treatment plants, settling basins are used to settling basin that is 6.0 ft deep, 6.0 ft wide, and 32 Q 32 ft Part A If the water flows at 1.2 ft³/s, how long will it take Part B Consider a worst-case scenario where a suspende surface. To be removed, it must settle to the botto settling velocity is required to capture this worst-
In water treatment plants, settling basins are used to settling basin that is 6.0 ft deep, 6.0 ft wide, and 32 Q 32 ft Part A If the water flows at 1.2 ft³/s, how long will it take Part B Consider a worst-case scenario where a suspende surface. To be removed, it must settle to the botto settling velocity is required to capture this worst-
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![**Problem 5: Water Treatment**
In water treatment plants, settling basins are used to remove suspended contaminants. Consider a settling basin that is 6.0 ft deep, 6.0 ft wide, and 32 ft long (in the direction of flow).
**Diagram Description:**
The diagram shows a rectangular settling basin. It has dimensions labeled as follows: the length is 32 ft, the width is 6.0 ft, and the height is 6.0 ft. An arrow labeled "Q" indicates the direction of flow through the basin.
**Part A**
If the water flows at 1.2 ft³/s, how long will it take the water to pass through the basin? [s]
**Part B**
Consider a worst-case scenario where a suspended contaminant enters the basin at the water surface. To be removed, it must settle to the bottom before it is flushed out of the basin. What settling velocity is required to capture this worst-case suspended contaminant? [m/s]
**Part C**
Assuming the suspended contaminant has a density of ρ = 1,200 kg/m³, how big must the contaminant be in order to settle in time? Report your result as a diameter [mm]. Assume water density ρₙ = 1000 kg/m³ and dynamic viscosity μ = 0.001518 Ns/m².](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc837c159-281c-429a-9ec5-8a70fc5b4137%2F7875f1fc-b947-450d-9a69-65487e31abc8%2F5a5pny7_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem 5: Water Treatment**
In water treatment plants, settling basins are used to remove suspended contaminants. Consider a settling basin that is 6.0 ft deep, 6.0 ft wide, and 32 ft long (in the direction of flow).
**Diagram Description:**
The diagram shows a rectangular settling basin. It has dimensions labeled as follows: the length is 32 ft, the width is 6.0 ft, and the height is 6.0 ft. An arrow labeled "Q" indicates the direction of flow through the basin.
**Part A**
If the water flows at 1.2 ft³/s, how long will it take the water to pass through the basin? [s]
**Part B**
Consider a worst-case scenario where a suspended contaminant enters the basin at the water surface. To be removed, it must settle to the bottom before it is flushed out of the basin. What settling velocity is required to capture this worst-case suspended contaminant? [m/s]
**Part C**
Assuming the suspended contaminant has a density of ρ = 1,200 kg/m³, how big must the contaminant be in order to settle in time? Report your result as a diameter [mm]. Assume water density ρₙ = 1000 kg/m³ and dynamic viscosity μ = 0.001518 Ns/m².
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