**Sedimentation Basin Analysis**This problem involves a sedimentation basin with specific parameters. - **Surface Area of Settling Zone**: 2400 m²- **Flow Rate**: 46,000 m³/day- **Particle-Settling Velocity**: 0.2 mm/s**Objective**: Calculate the approximate removal efficiency of the sedimentation basin.**Concepts**:The removal efficiency of a sedimentation basin can be determined using the overflow rate (also known as the surface loading rate) and the particle-settling velocity. The formula for removal efficiency (\(E\)) is typically represented as:\[ E = \left( \frac{V_s}{V_o} \right) \times 100 \]Where:- \(V_s\) is the particle-settling velocity- \(V_o\) is the overflow rate, calculated as \( \frac{\text{Flow rate}}{\text{Surface area}} \)**Steps**:1. **Convert Particle-Settling Velocity**: - Convert from mm/s to m/day. - \( 0.2 \, \text{mm/s} = 0.2 \times 86,400 \, \text{m/day} = 17,280 \, \text{m/day} \)2. **Calculate Overflow Rate**: - \( V_o = \frac{46,000 \, \text{m}^3/\text{day}}{2400 \, \text{m}^2} = 19.17 \, \text{m/day} \)3. **Calculate Removal Efficiency**: - \( E = \left( \frac{17,280}{19.17} \right) \times 100 \approx 90.21\% \)This simplification provides a framework to assess the efficiency of the sedimentation process based on the given parameters.

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A sedimentation basin with a settling zone surface area of 2400 m accepts a flow of 46,000 m'/day. For a particle-settling velocity of 0.2 mm/s, what is the approximate removal efficiency of the sedimentation basin?

A sedimentation basin with a settling zone surface area of 2400 m accepts a flow of 46,000 m'/day. For a particle-settling velocity of 0.2 mm/s, what is the approximate removal efficiency of the sedimentation basin?

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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Concept explainers

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.

Question

**Sedimentation Basin Analysis**

This problem involves a sedimentation basin with specific parameters.

- **Surface Area of Settling Zone**: 2400 m²
- **Flow Rate**: 46,000 m³/day
- **Particle-Settling Velocity**: 0.2 mm/s

**Objective**: Calculate the approximate removal efficiency of the sedimentation basin.

**Concepts**:

The removal efficiency of a sedimentation basin can be determined using the overflow rate (also known as the surface loading rate) and the particle-settling velocity. The formula for removal efficiency (\(E\)) is typically represented as:

\[ E = \left( \frac{V_s}{V_o} \right) \times 100 \]

Where:
- \(V_s\) is the particle-settling velocity
- \(V_o\) is the overflow rate, calculated as \( \frac{\text{Flow rate}}{\text{Surface area}} \)

**Steps**:

1. **Convert Particle-Settling Velocity**:
- Convert from mm/s to m/day.
- \( 0.2 \, \text{mm/s} = 0.2 \times 86,400 \, \text{m/day} = 17,280 \, \text{m/day} \)

2. **Calculate Overflow Rate**:
- \( V_o = \frac{46,000 \, \text{m}^3/\text{day}}{2400 \, \text{m}^2} = 19.17 \, \text{m/day} \)

3. **Calculate Removal Efficiency**:
- \( E = \left( \frac{17,280}{19.17} \right) \times 100 \approx 90.21\% \)

This simplification provides a framework to assess the efficiency of the sedimentation process based on the given parameters.

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