Table B1. Retention basin drainage and infiltration model.
Based on 20% solids and 5 ppt salinity, lined basin.
Drain
Excess water Additional
Thickness
Height of Q water
Q water
Decant
time (dt)
quantity:
thickness of
of sludge water column pad
weir
thru pad
over weir
Error
3) sludge (mm)
(m3)
(m3)
(m3)
(m3)
(m3)
Day Hour
(hours)
Q in (m
(mm)
(mm)
1
1
15.5
306
9.4
9.40
37.6
2.0
0
2
14.5
306
9.4
18.80
75.2
2.6
0
3
13.5
306
9.4
28.20
112.7
3.2
0
4
12.5
306
9.4
37.60
150.1
3.8
0
5
11.5
306
9.4
47.00
187.5
4.4
0
6
10.5
306
9.4
56.40
224.7
5.0
0
7
9.5
306
9.4
65.80
262.0
5.5
0
8
8.5
306
9.4
75.20
299.1
6.1
0
7.5
0
0.0
75.20
298.3
6.7
0
9
6.5
0
0.0
75.20
297.5
6.7
0
10
5.5
0
0.0
75.20
296.6
6.7
0
11
4.5
0
0.0
75.20
242.7
6.7
429
12
3.5
0
0.0
75.20
170.0
6.0
582
13
2.5
0
0.0
75.20
113.4
5.1
453
14
1.5
0
0.0
75.20
43.2
4.3
563
15
0.5
0
0.0
75.20
16.2
3.4
216
78
2243
4.3
16
2
1
15.5
306
9.4
84.60
37.4
3.1
0
2
14.5
306
9.4
94.00
74.9
3.5
0
3
13.5
306
9.4
103.40
112.3
4.1
0
4
12.5
306
9.4
112.80
149.6
4.6
0
5
11.5
306
9.4
122.20
186.9
5.2
0
6
10.5
306
9.4
131.60
224.1
5.8
0
7
9.5
306
9.4
141.00
261.2
6.4
0
8
8.5
306
9.4
150.40
298.2
6.9
0
7.5
0
0.0
150.40
297.3
7.5
0
9
6.5
0
0.0
150.40
296.4
7.5
0
10
5.5
0
0.0
150.40
295.5
7.5
0
11
4.5
0
0.0
150.40
241.5
7.5
429
12
3.5
0
0.0
150.40
169.1
6.8
578
13
2.5
0
0.0
150.40
112.5
5.9
452
14
1.5
0
0.0
150.40
42.7
5.2
560
15
0.5
0
0.0
150.40
15.9
4.3
212
92
2232
4.3
16
38
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