521-OM0108.88
Copyright
2009 Nalco Company
5-15
Technical Help
(630) 305-CHEM
3D TRASAR
5500 - Installation & Operation Manual
7. What are the operating limits for 3D TRASAR Scale Control?
1
Applies to operation with 10 ppm active polymer- operation with less polymer requires
commensurately lower background level limits.
2
Inhibitor chemical stability should be considered as a potential limiting factor in long HTI
(e.g. >~200 hr) operation.
3
Status may change; Look in Optimizer or call 630-305-CHEM.
4
If foaming occurs on application, loss of TRASAR 2 (PTSA) or polymer may be observed.
Follow 90005 use recommendations to avoid foaming.
5
Corresponds to a 10% loss of fluorescence when exposed to halogen for 24 hrs.
System Parameters
Turbidity (NTU)
<150
Background Fluorescence Correction
1
Fixed offset
30%
Online real-time
30%
HTI (hrs)
Minimum of 14
2
Volume (gal)
No limit
Blowdown Rate (gpm)
No limit
System Volume/Recirc Rate Ratio (min)
<20
Biocide Compatibility
Bleach
Compatible
STA-BR-EX
Compatible
ACTI-BROM
Compatible
Towerbrom 960
See Bromine limits
Towerbrom 991
See Bromine limits
CI
2
Gas
Compatible
Cl0
2
Not Compatible
3
BCDMH with EASIBROM Feeder
See Bromine limits
Stabilized Bleach
Compatible
Isothiazolinone
Compatible
Glutaraldehyde
Compatible
90005
Compatible at 160 ppm
4
DBNPA
Compatible
Upper limit of halogen concentration-
impact on polymer/TRASAR fluorescence
Chlorine (FRC)
5
<1.5
Bromine (TRO)
5
<5
Other Variables
Iron (ppm)
<10
SO
2
None
Sulfides (ppm)
None
Copper (ppm)
<40