1. A settling column analysis is performed on a dilute suspension of particles from water. The suspension exhibited discrete particle settling characteristics. Data collected from samples taken at a depth of 1.5 meters are as follows: Time required to settle 1.5 m (min) 0.6 Fraction of Particles Settled 0.5 1.2 0.55 2.2 0.62 4.5 6 0.75 0.85 8.8 0.96 1. Plot the velocity distribution for the suspension 2. Find the overflow rate (Q/A) for a settling tank that will give at least 65% removal. 3. If the flowrate into the settling tank in part b. is 200 m3/hr, please give the dimensions of your settling tank?
1. A settling column analysis is performed on a dilute suspension of particles from water. The suspension exhibited discrete particle settling characteristics. Data collected from samples taken at a depth of 1.5 meters are as follows: Time required to settle 1.5 m (min) 0.6 Fraction of Particles Settled 0.5 1.2 0.55 2.2 0.62 4.5 6 0.75 0.85 8.8 0.96 1. Plot the velocity distribution for the suspension 2. Find the overflow rate (Q/A) for a settling tank that will give at least 65% removal. 3. If the flowrate into the settling tank in part b. is 200 m3/hr, please give the dimensions of your settling tank?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Settling Column Analysis for Dilute Suspension of Particles**
A settling column analysis is conducted on a dilute suspension of particles from water, exhibiting discrete particle settling characteristics. Data collected from samples taken at a depth of 1.5 meters are as follows:
- **Time required to settle 1.5 m (minutes):** 0.6, 1.2, 2.2, 4.5, 6, 8.8
- **Fraction of Particles Settled:** 0.5, 0.55, 0.62, 0.75, 0.85, 0.96
**Analysis Tasks:**
1. **Plot the Velocity Distribution:** Create a graph to show the velocity distribution for the suspension based on the provided data.
2. **Determine the Overflow Rate (Q/A):** Calculate the overflow rate for a settling tank to achieve at least 65% particle removal.
3. **Dimensioning the Settling Tank:** If the flow rate into the settling tank is 200 m³/hr, determine the necessary dimensions for your settling tank to meet the required removal efficiency.
This study provides insights into optimizing settling tank design for effective particle removal in water treatment processes.
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