UFC 3-240-13FN
25 May 2005
Table 2-2. External Treatment Equipment Selection Guide for
Steam Boiler Makeup Water
Makeup
Steam
Alkalinity (ppm
Recommended External Treatment
Rate l/sec Pressure KPa
Turbidity
CaCO3)
Equipment
(gpm)
(psig)
< 10
Normally internal treatment only
< 103
All
All
(< 15)
> 10
Filtration plus internal treatment
< 10
Sodium zeolite
< 75
> 10
Filtration plus sodium zeolite
1. Sodium zeolite plus hydrogen zeolite
2. Sodium zeolite plus chloride/anion
103-138
< 10
exchange
(15-200)
> 75
3. Hydrogen zeolite
1. Filtration plus sodium zeolite plus
hydrogen zeolite
< 6.3
> 10
(< 100)
2. Hydrogen zeolite
< 10
Sodium zeolite
< 35
> 10
Filtration plus sodium zeolite
1. Sodium zeolite plus hydrogen zeolite
138-448
< 10
2. Demineralization
(200-650)
> 35
1. Filtration plus sodium zeolite plus
hydrogen zeolite
> 10
2. Filtration plus demineralization
< 10
Sodium zeolite
< 75
1. Filtration plus sodium zeolite
> 10
2. Hot-lime soda
103-138
< 10
Sodium zeolite plus hydrogen zeolite
(15-200)
1. Filtration plus sodium zeolite plus
> 75
hydrogen zeolite
> 10
> 6.3
2. Filtration plus demineralization
(> 100)
1. Sodium zeolite plus hydrogen zeolite
< 10
2. Demineralization
138-448
1. Filtration plus sodium zeolite plus
All
(200-650)
hydrogen zeolite
> 10
Filtration plus demineralization
Hot-lime hot-sodium zeolite
< 10
Demineralization
> 448
10-400
Filtration plus demineralization
(> 650)
All
All
1. Filtration plus demineralization
(normally
> 400
2. RO
super-heated)
3. Electrodialysis
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