Estimate the clean filter headloss for a proposed new sand filter using the sand. Use the following assumptions: loading rate is 216 m/d.m?, specific gravity of sand is 2.65, the shape factor is 0.82, the bed porosity is 0.45, the water temperature is 10°C, and the depth of sand is 0.5 m. Sieve no &retain 7,3 17,1 14,6 20,4 d(mm) 8-12 2 12-16 1,42 16-20 1 20-30 0,714 30-40 17,6 11,9 0,505 40-50 0,357 5,9 3,1 50-70 0,252 70-100 0,178 100-140 0,7 0,126

Estimate the clean filter headloss for a proposed new sand filter using the sand. Use the following assumptions: loading rate is 216 m/d.m?, specific gravity of sand is 2.65, the shape factor is 0.82, the bed porosity is 0.45, the water temperature is 10°C, and the depth of sand is 0.5 m. Sieve no &retain 7,3 17,1 14,6 20,4 d(mm) 8-12 2 12-16 1,42 16-20 1 20-30 0,714 30-40 17,6 11,9 0,505 40-50 0,357 5,9 3,1 50-70 0,252 70-100 0,178 100-140 0,7 0,126

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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Question

Estimate the clean filter headloss for a proposed new sand filter using the sand. Use the
following assumptions: loading rate is 216 m/d.m?, specific gravity of sand is 2.65, the shape
factor is 0.82, the bed porosity is 0.45, the water temperaturę is 10°C, and the depth of sand is
mv w m n
www wh
w m www
0.5 m.
Sieve no
&retain
d(mm)
8-12
7,3
2
12-16
17,1
1,42
16-20
14,6
20,4
17,6
1
20-30
0,714
30-40
0,505
40-50
11,9
0,357
50-70
5,9
0,252
70-100
3,1
0,178
100-140
0,7
0,126

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