1. A 1800 ft² sedimentation tank with a water depth of 12 feet is used to remove sand particies from water by settling. The specific gravity of the sand particles is 2.65 and the diameter of the particles is 0.001 cm. The temperature of the water is 60°F (15.6 °C). Adjust both the kinematic viscosity and the density of water accordingly. a. Calculate the settling velocity (m/hr)... b. Assuming this settling velocity is the overflow rate, calculate the hydraulic residence time (hr) ;. c. If the settling velocity of a particle is 0.70 cm/s, what percent of the particles are retained in the clarifier? [-
1. A 1800 ft² sedimentation tank with a water depth of 12 feet is used to remove sand particies from water by settling. The specific gravity of the sand particles is 2.65 and the diameter of the particles is 0.001 cm. The temperature of the water is 60°F (15.6 °C). Adjust both the kinematic viscosity and the density of water accordingly. a. Calculate the settling velocity (m/hr)... b. Assuming this settling velocity is the overflow rate, calculate the hydraulic residence time (hr) ;. c. If the settling velocity of a particle is 0.70 cm/s, what percent of the particles are retained in the clarifier? [-
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter11: Compressibility Of Soil
Section: Chapter Questions
Problem 11.15P
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