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A settling basin is designed to have a critical settling velocity of 32.6m/d. Determine how much of the suspended particles (percentage of mass) is expected to be removed based on the particle size distribution given below. The specific gravity of the particles is 1.2 and water temperature is 20°C. Viscosity of water =1.0087x10-3 Ns/m2 Density of water =998.23 kg/m3 Particle Size (mm) | Weight Fraction Greater Than Size , % 0.1 10 0.08 15 0.07 40 0.06 70 0.04 93 0.02 99 0.01 100

A settling basin is designed to have a critical settling velocity of 32.6m/d. Determine how much of the suspended particles (percentage of mass) is expected to be removed based on the particle size distribution given below. The specific gravity of the particles is 1.2 and water temperature is 20°C. Viscosity of water =1.0087x10-3 Ns/m2 Density of water =998.23 kg/m3 Particle Size (mm) | Weight Fraction Greater Than Size , % 0.1 10 0.08 15 0.07 40 0.06 70 0.04 93 0.02 99 0.01 100

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 settling basin is designed to have a critical settling velocity of 32.6 m/d. Determine how much of the suspended particles (percentage of mass) is expected to be removed based on the particle size distribution given below. The specific gravity of the particles is 1.2 and water temperature is 20°C. - Viscosity of water = 1.0087 x 10^-3 Ns/m² - Density of water = 998.23 kg/m³ The table below shows the particle size distribution: | Particle Size (mm) | Weight Fraction Greater Than Size (%) | |--------------------|---------------------------------------| | 0.1 | 10 | | 0.08 | 15 | | 0.07 | 40 | | 0.06 | 70 | | 0.04 | 93 | | 0.02 | 99 | | 0.01 | 100 | This table indicates the weight fraction of particles that are greater than each specified size. For instance, 10% of the particle mass is made up of particles greater than 0.1 mm in size, and 100% of the mass consists of particles larger than 0.01 mm. This data is used to estimate the removal efficiency in the settling basin based on the critical settling velocity.
Transcribed Image Text:A settling basin is designed to have a critical settling velocity of 32.6 m/d. Determine how much of the suspended particles (percentage of mass) is expected to be removed based on the particle size distribution given below. The specific gravity of the particles is 1.2 and water temperature is 20°C. - Viscosity of water = 1.0087 x 10^-3 Ns/m² - Density of water = 998.23 kg/m³ The table below shows the particle size distribution: | Particle Size (mm) | Weight Fraction Greater Than Size (%) | |--------------------|---------------------------------------| | 0.1 | 10 | | 0.08 | 15 | | 0.07 | 40 | | 0.06 | 70 | | 0.04 | 93 | | 0.02 | 99 | | 0.01 | 100 | This table indicates the weight fraction of particles that are greater than each specified size. For instance, 10% of the particle mass is made up of particles greater than 0.1 mm in size, and 100% of the mass consists of particles larger than 0.01 mm. This data is used to estimate the removal efficiency in the settling basin based on the critical settling velocity.
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