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Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h?
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Determine the detention time available for a settling tank with diamet...
**Given Data:**
- Diameter of settling tank (D) = 22 m
- Side water depth (h) = 1.5 m
- Flow rate (Q) = 11000 m³/day
**Calculating the Cross-sectional Area of the Tank:**
The cross-sectional area of the tank can be calculated using the formula for the area of a circle:
A = π/4 * D²
= 3.14/4 * (22)²
≈ 380.13 m²
**Calculating the Detention Time:**
The detention time (T) can be calculated using the formula:
T = V / Q
Where:
V = Volume of the tank
Q = Flow rate
**Calculating the Volume of the Tank:**
The volume of the tank can be calculated using the formula for the volume of a cylinder:
V = A * h
= 380.13 m² * 1.5 m
≈ 570.2 m³
**Substituting the Values:**
T = 570.2 m³ / 11000 m³/day
To convert the flow rate from m³/day to m³/hour, we need to divide by 24:
T = 570.2 m³ / (11000 m³/day / 24 h/day)
= 570.2 m³ / (458.33 m³/h)
≈ 1.244 hours
Therefore, the detention time available for the settling tank is approximately 1.244 hours.
**Answer:**
The detention time available for the settling tank is approximately 1.244 hours. Thus, the correct option is (3) 1.244h.
- Diameter of settling tank (D) = 22 m
- Side water depth (h) = 1.5 m
- Flow rate (Q) = 11000 m³/day
**Calculating the Cross-sectional Area of the Tank:**
The cross-sectional area of the tank can be calculated using the formula for the area of a circle:
A = π/4 * D²
= 3.14/4 * (22)²
≈ 380.13 m²
**Calculating the Detention Time:**
The detention time (T) can be calculated using the formula:
T = V / Q
Where:
V = Volume of the tank
Q = Flow rate
**Calculating the Volume of the Tank:**
The volume of the tank can be calculated using the formula for the volume of a cylinder:
V = A * h
= 380.13 m² * 1.5 m
≈ 570.2 m³
**Substituting the Values:**
T = 570.2 m³ / 11000 m³/day
To convert the flow rate from m³/day to m³/hour, we need to divide by 24:
T = 570.2 m³ / (11000 m³/day / 24 h/day)
= 570.2 m³ / (458.33 m³/h)
≈ 1.244 hours
Therefore, the detention time available for the settling tank is approximately 1.244 hours.
**Answer:**
The detention time available for the settling tank is approximately 1.244 hours. Thus, the correct option is (3) 1.244h.
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Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h?
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Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h?.
Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Determine the detention time available for a settling tank with diameter of 22 m and a 1.5 m side water depth for a flow rate of 11000 m�/day. Effluent weir is located on the periphery of the tank. (1) 1.41h (2) 2.98h (3) 1.244h (4) 3.5h?.
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