How is water with 120 µm-diameter particles clarified using a settling tank that is 32 m long, 2.1 m wide, and 1.6 m deep? The dynamic viscosity of water is 1.3 x 10-2 g/cm.sec. and the density of the particles is 2.5 g/cm3. What flow rate can be permitted at its maximum to ensure that all the particles land in the tank?

How is water with 120 µm-diameter particles clarified using a settling tank that is 32 m long, 2.1 m wide, and 1.6 m deep? The dynamic viscosity of water is 1.3 x 10-2 g/cm.sec. and the density of the particles is 2.5 g/cm3. What flow rate can be permitted at its maximum to ensure that all the particles land in the tank?

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.14P

See similar textbooks

Similar questions

What is the largest size of a spherical sand grain that the Stokes’ Law can be used to calculate its settling velocity. What is the terminal settling velocity for the sand in quiescent water? If you want to use a settling basin (with 3 m in depth) to achieve 100% removal for all sand grains of this size in the water, what are the required size (area and volume) of the basin for treating Q=10000 m3/hr. Assuming water temperature is at ~20 0C and the density of sand is 2650 kg/m3.
Calculate the diameter of a discrete particle whose terminal settling velocity is 1.044 cm/s. The particle density is 2,650 kg/m3 and the water temperature is 12°C. Assume Stokes' law applies, and that the density of water is 1,000 kg/m3.
To clarify water containing particles with a diameter of 120 m, a settling tank (32 m long, 2.1 m across, and 1.6 m deep) is used. The particle density is 2.5 g/cm3, and the dynamic viscosity of water is 1.3 x 10-2 g/cm.sec. What is the highest flow rate that can be tolerated to ensure that all particles settle in the tank?
Consider a vertical column of 0.25 square meter cross-sectional area and 1 meter long. If 0.4 cubic meter of water percolate through the column in 36 hours from a supply pipe which permits the water to flow onto the soil just fast enough to keep the soil surface covered, what is the permeability in meter per 24-hour day?
In order to clarify water containing particles with a diameter of 120 µm, what is used is a settling tank that is 32 m long, 2.1 m wide, and 1.6 m deep? The water's dynamic viscosity is 1.3 x 10-2 g/cm.sec. and the particles' density is 2.5 g/cm3. What is the highest flow rate that can be permitted while still ensuring that all the particles land in the tank?
The SQUARE base permeameter (seen from above), has three soil layers arranged vertically as shown in the image. L is: 70cm, the difference of head h is: 105 cm. The coefficient of permeability of soil 1 K1 is 0.065 cm/sec, soil 2 K2 is 0.0030 cm/sec and soil 3 K3 is the 0.0095 Calculate the amount of water collected in a time of 10 minutes.
A settling tank (32 m long, 2.1 m across and 1.6 m deep) is used to clarify water containing particles with a diameter of 120 µm. The density of the particles is 2.5 g/cm3 and the dynamic viscosity of water is 1.3 x 10-2 g/cm.sec. What is the maximum flow rate that can be allowed to make sure all the particles settle in the tank?
A permeable soil layer is underlain by an impervious layer as shown below. Knowing that k = 6 x 10 -3 cm/sec for the permeable layer. Given H = 5.4 m, calculate the rate of seepage through this layer in m 3 /hr. if: α = 5 o α = 7 o α = 9 o α = 12 o Draw a chart α vs. q (i.e. α on the x-axis, and q on the y-axis) and discuss how the slope angle (α) impact the flow rate and explain the reason for such behavior.
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 1.2 2.2 4.5 6 8.8 Fraction of Particles Settled 0.3 0.45 0.6 0.7 0.85 0.96 Plot the velocity distribution for the suspension Find the overflow rate (Q/A) for a settling tank that will give at least 75% removal. If the flowrate into the settling tank in part b. is 850 m3/hr, please give the dimensions of you settling tank? Since you will need to address the smaller particles that have passed through this system at some later point, what is the particle size distribution (mass fraction vs. diameter) if we assume the particle density is that of sand (sg = 2.65)
0.1: Calculate the settling velocity and the diameter of the circular tank, to settle particles of 0.5 mm diameter and density of 2650 kg/m. The flow rate 0.5 m'is and detention time 2 hr. water density 998.2 kg/m' and viscosity 1.002* 10 N.sím. use two tanks.
1a. Calculate the terminal settling velocity of a 15 μm clay mineral particle with a density of 2.65 g / cm3 in 20 ˚C water.1b. Would these particles be completely removed in a rectangular settling basin that has a 10-m width, a 30-m length and a 4-m depth given a flow rate of 2 MGD (million gallons day).1c. What is the smallest diameter clay mineral particle that can be removed in the settling basin for the conditions above?1d. What is the smallest diameter clay mineral particle that can be removed in the settling basin for winter conditions when the water temp is 5 ˚C.
Determine the minimum dimension of a particle that can be completely removed from a settling chamber, if the rate of overflow is 30 m3/d/m2. Take specific gravity of particle equal to 2.65 and the dynamic viscosity equal to 1 x 10-5 Ns /m2.