3. A sediment laden water is to be treated in a sedimentation tank with Type I settlingcharacteristics. The tank is 35 m. long and 20 m. wide with a depth of 5 m. Acontrolled constant flow rate of 3.5 m³/s passes through the tank. A particle sizeanalysis has been made and the results are listed in the table below:Dp (m)0.000050.000070.000090.00010.0002Mass Concentration (mg/L)100200300200100Assume that the particle densities are all 2,000 kg/m³ and the dynamic viscosity ofwater is 0.001 Ns/m².(a) Determine the effluent particle size distribution and the effluent sedimentconcentration by using a spreadsheet or writing a QuickBASIC program.(b) Determine the particle removal efficiency (%) of the tank.

Answer We need to find settling velocity of particles and overflow rate Overflow rate is given by…

A sediment laden water is to be treated in a sedimentation tank with Type I settling characteristics. The tank is 35 m. long and 20 m. wide with a depth of 5 m. A controlled constant flow rate of 3.5 m³/s passes through the tank. A particle size analysis has been made and the results are listed in the table below:

A sediment laden water is to be treated in a sedimentation tank with Type I settling characteristics. The tank is 35 m. long and 20 m. wide with a depth of 5 m. A controlled constant flow rate of 3.5 m³/s passes through the tank. A particle size analysis has been made and the results are listed in the table below:

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.11P

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