A trimedia filter has a 560-mm crushed anthracite coal layer (specific gravity = 1.20), a 230-mm sand layer (specific gravity = 2.65), and a 75-mm garnet layer (specific gravity = 4.20). The average sizes of particles in the three layers are 1.5mm, 0.80mm, and 0.30mm, respectively. The ᴓ values are 0.9 and the porosities of the respective layers are 0.40, 0.45, and 0.50. The filtration rate is 3.40 liter/s-m2 and the water temperature is 10°C. Determine the head loss for the clean filter.
A trimedia filter has a 560-mm crushed anthracite coal layer (specific gravity = 1.20), a 230-mm sand layer (specific gravity = 2.65), and a 75-mm garnet layer (specific gravity = 4.20). The average sizes of particles in the three layers are 1.5mm, 0.80mm, and 0.30mm, respectively. The ᴓ values are 0.9 and the porosities of the respective layers are 0.40, 0.45, and 0.50. The filtration rate is 3.40 liter/s-m2 and the water temperature is 10°C. Determine the head loss for the clean filter.
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter6: Hydraulic Conductivity
Section: Chapter Questions
Problem 6.12P
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A trimedia filter has a 560-mm crushed anthracite coal layer (specific gravity = 1.20), a 230-mm sand layer (specific gravity = 2.65), and a 75-mm garnet layer (specific gravity = 4.20). The average sizes of particles in the three layers are 1.5mm, 0.80mm, and 0.30mm, respectively. The ᴓ values are 0.9 and the porosities of the respective layers are 0.40, 0.45, and 0.50. The filtration rate is 3.40 liter/s-m2 and the water temperature is 10°C. Determine the head loss for the clean filter.
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