Table B1. Retention basin drainage and infiltration model (cont`d).
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)
5
1
15.5
306
9.4
310.20
37.1
5.6
0
2
14.5
306
9.4
319.60
74.3
6.0
0
3
13.5
306
9.4
329.00
111.4
6.5
0
4
12.5
306
9.4
338.40
148.4
7.0
0
5
11.5
306
9.4
347.80
185.4
7.6
0
6
10.5
306
9.4
357.20
222.3
8.1
0
7
9.5
306
9.4
366.60
259.1
8.6
0
8
8.5
306
9.4
376.00
295.9
9.1
0
7.5
0
0.0
376.00
294.7
9.7
0
9
6.5
0
0.0
376.00
293.5
9.6
0
10
5.5
0
0.0
376.00
292.3
9.6
0
11
4.5
0
0.0
376.00
238.1
9.6
429
12
3.5
0
0.0
376.00
165.7
9.0
576
13
2.5
0
0.0
376.00
108.8
8.1
452
14
1.5
0
0.0
376.00
38.9
7.5
558
15
0.5
0
0.0
376.00
14.7
6.6
189
128
2205
4.3
16
6
1
15.5
306
9.4
385.40
37.0
6.4
0
2
14.5
306
9.4
394.80
74.1
6.7
0
3
13.5
306
9.4
404.20
111.1
7.2
0
4
12.5
306
9.4
413.60
148.1
7.8
0
5
11.5
306
9.4
423.00
184.9
8.3
0
6
10.5
306
9.4
432.40
221.7
8.8
0
7
9.5
306
9.4
441.80
258.5
9.3
0
8
8.5
306
9.4
451.20
295.2
9.8
0
7.5
0
0.0
451.20
293.9
10.3
0
9
6.5
0
0.0
451.20
292.6
10.3
0
10
5.5
0
0.0
451.20
291.4
10.3
0
11
4.5
0
0.0
451.20
237.0
10.3
429
12
3.5
0
0.0
451.20
164.6
9.6
576
13
2.5
0
0.0
451.20
107.7
8.8
452
14
1.5
0
0.0
451.20
37.7
8.2
558
15
0.5
0
0.0
451.20
14.3
7.4
182
139
2197
4.3
16
40
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