UFC 3-280-03
23 JULY 2003
Table 2-5. Typical sludge dewatering performance variable-volume filter press.
Chemical
Addition-
Feed
Feed/
Cake Solids
Percent of
Solids
Squeeze
(%)
Dry Solids2
Cycle Time
(%)
Pressure
1
(Minutes)3
(kPa)4
Application
Brewery Grain Mash
2 to 10
Polymer or
90180
690/1550
35 to 50
Lime-15
4 to 10
None or Lime-
90150
690/1550
30 to 60
Calcium or
25
Tri-Calcium
Phosphate
Chicken Processing
2 to 8
FeCl3-6 &
90150
690/1550
35 to 50
Waste
Lime-18
Creosote Waste
2 to 8
Lime-30
90150
690/1550
40 to 60
15 to 30
None
4590
690/1550
50 to 75
Flue Gas
Desulfurization
Oxidized Sludge
Fly Ash
15 to 30
None
3060
690/1550
55 to 75
Industrial Biological
2 to 6
FeCl3-10 &
90180
690/1550
30 to 50
Sludge
Lime-30
Municipal Primary
5 to 10
FeCl3-4 &
60120
690/1550
40 to 60
Sludge
Lime-12
3 to 6
FeCl3-5 &
Municipal Primary &
90180
690/1550
35 to 50
Waste Activated
Lime-15
Sludge
Municipal Waste
1 to 3
FeCl3-10 &
90180
690/1550
35 to 45
Activated Sludge
Lime-30
Municipal Water Alum
1 to 6
Lime-15 or
90150
690/1550
35 to 45
Treated Sludge
Polymer
Municipal Water FeCl3
2 to 8
Lime-15 or
60120
690/1550
40 to 55
Treated Sludge
Polymer
60120
690/1550
40 to 70
Oily Industrial Wastes
4 to 15
Polymer or
FeCl3-5 &
Lime-15
90150
690/1550
40 to 60
Oily Waste Refinery
4 to 8
FeCl3-10 &
Sludge
Lime-30 or
Lime-30
2-22
Previous Page
