APPENDIX A: FILTER LEAF TEST DATA FOR
LEBANON, NEW HAMPSHIRE, WATER PLANT SLUDGE.
Initial
Filtration
Vacuum
Filtrate
Filtrate
Cake
Weight
Wet cake
Drained
Test
Media
solids
time
pressure
volume
clarity
thickness Wet cake Dry cake
solids
solids
number
number
(%)
(min)
(mm Hg)
(mL)
(NTU)
(mm)
(g)
(g)
(%)
(%)
1
2013
2
2019
3
2006
1.5
3
4
2016
1.5
190
3
5
2038
1.5
375
3
6
525
1.5
1
7
525
1.5
75
1
8
525
2.0
90
1
9
515
2.0
60
1
10
515
5.0
135
3
11
2019
5.0
130
3
12
210
2.0
90
1
13
210
5.0
135
3
14
531
2.0
100
1
15
531
5.0
165
1
16
515
1.14
2.0
500
70
1
19.554
1.111
5.7
17
515
1.14
5.0
500
100
1
29.349
1.299
4.4
18
515
1.14
7.0
500
185
1
22.707
1.226
5.4
19
515
1.14
7.0
500
230
1
8.812
0.558
6.3
20
525
1.14
2.0
500
80
3
22.655
1.027
4.5
21
515
1.14
7.0
500
110
3
32.203
1.475
4.6
22
525
1.14
5.0
500
115
3
19.693
1.081
5.5
23
525
1.14
7.0
500
140
3
12.678
0.875
6.9
24
515
1.14
2.0
100
75
5.5
1
25
515
1.14
2.0
200
80
5.4
1
26
515
1.14
2.0
300
95
15.0
1
27
515
1.14
2.0
400
85
12.0
1
28
515
1.14
2.0
400
100
8.0
1
29
515
1.14
2.0
500
70
8.0
1
30
515
1.14
5.0
100
130
2.5
1
31
507
1.14
2.0
100
115
55.0
1
32
507
1.14
2.0
200
135
55.0
1
33
507
1.14
2.0
300
130
55.0
1
34
507
1.14
2.0
400
125
40.0
1
35
507
1.14
2.0
500
125
35.0
1
36
210
0.41
2.0
100
95
25.0
1
5.055
0.232
4.6
37
210
0.41
5.0
100
160
15.0
1
12.282
0.420
3.4
38
210
0.41
10.0
100
230
4.0
1
13.532
0.413
3.1
39
208
0.41
2.0
100
95
35.0
1
10.043
0.359
3.6
40
208
0.41
5.0
100
155
25.0
1
13.710
0.454
3.3
41
208
0.41
10.0
100
205
4.0
1
10.476
0.368
3.5
42
201
0.34
2.0
100
135
35.0
1
5.012
0.209
4.2
43
201
0.34
5.0
100
210
15.0
1
4.652
0.201
4.3
44
201
0.34
10.0
100
270
15.0
1
5.024
0.251
5.0
45
515
0.34
2.0
100
105
10.0
1
5.026
0.229
4.6
46
515
0.34
5.0
100
155
8.5
1
10.428
0.403
3.9
47
515
0.34
10.0
100
195
8.2
1
8.348
0.371
4.4
48
525
0.47
2.0
100
120
50.0
1
6.551
0.306
4.7
49
525
0.47
5.0
100
215
25.0
3
16.383
0.530
3.2
50
525
0.47
10.0
100
215
18.0
3
20.562
0.628
3.1
51
507
0.47
2.0
100
90
55.0
1
9.048
0.367
4.1
52
507
0.47
5.0
100
155
30.0
1
10.286
0.419
4.1
53
507
0.47
10.0
100
185
35.0
1
11.900
0.478
4.0
54
2019
0.70
2.0
100
65
20.0
1
9.580
0.289
3.0
55
2019
0.70
5.0
100
105
15.0
3
21.458
0.584
2.7
56
2019
0.70
10.0
100
135
17.0
3
24.543
0.630
2.6
57
2016
0.70
2.0
100
75
65.0
3
15.745
0.416
2.6
58
2016
0.70
5.0
100
120
60.0
1
16.190
0.341
2.1
59
2016
0.70
10.0
100
63.0
1
12.523
0.379
3.0
17
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