Civil Engineering Reference
In-Depth Information
TABLE 23-13. Lime Softening Sludge Characteristics for Eight Plants
Boulder City,
NV
24
Miami,
FL
24
Wright Aero Corp.,
Cincinnati, OH
St. Paul,
MN
24
Lansing,
MI
24
Wichita,
KS
25
Vandenberg,
CA
26
Columbus,
OH
27
Silica, iron, and aluminum
oxides
2.0
1.5
4.4
2.0
—
0.6-2.0
7
3.3-3.6
Calcium carbonate
87.2
93.0
88.1
85.0
80-90
89-98
85
80-85
Calcium hydroxide
—
—
—
—
—
—
1
—
Magnesium oxide
7.0
1.8
2.2
6.2
4-6
0.4-3.5
7
5.2-8.6
