sanosil c compared to bleach mpy 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 sanosil @ 0.5ppm sodium...
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Sanosil C compared to Bleach
Mpy
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0Sodium Hypochlorite @ 4ppmSanosil @ 0.5ppm
This chart shows the corrosion rates of Sanosil C and bleach (12%) in a Minimal Inhibitory Concentration (MIC) study utilizing cooling make-up water of a refinery. The dose rate reflects the amount of product needed to maintain microbiological control in real life conditions.
Source: Microbiological Laboratory Evaluations of Sanosil vs Sodium Hypochlorite. Laboratory C&T TECHNOLOGY SA, 2010.
100
80
60
40
20
04 5 6 7 8 9 10 11
pH
Hypo
brom
ous
Acid
(HOB
r) -
Hypo
chlo
rous
Aci
d (H
OCI)
Dissociation of HOCI and HOBr at Different pHs
Typical Cooling Water pH
Hypochlorous Acid (HOCI) Hypobromous Acid (HOBr)
Between pH levels 8-9 HOCI and HOBr decompose rapidly.
Sanosil
By ASTM G31 Standards, Sanosil at in-use dilution has equal to or lesser corrosive effects compared to plain, uninhibited water.Lab test based on Sanosil at 30ppm and deionized water; both with no corrosive inhibitors.
Source: Corrosive Testing Laboratories, USA, 2009
Sanosil @ 30ppm Deionized Water
Mpy
10
8
6
4
2
0
Sanosil C compared to Water
Sodium Hypochlorite 25° (77°F): half life = 54.5 days
Sodium Hypochlorite 40° (104°F): half life = 7.2 days
100%
80%
60%
40%
20%
0%1 3 5 7 21 35 49 63 80 100 120 180 240 300 360
Days in Time
Sanosil 25° C (77° F)
Sanosil 40° C (104° F)
Sodium Hypochlorite 40° C (104° F)
Sodium Hypochlorite 25° C (77° F)
Storage Stability at 77º F and 104º F
Leve
l of A
ctiv
e In
gred
ient
s (%
)
Activity Mechanism
Shelf life: days to lose 50% of activity @ 104º F (40º C)
Decomposition Products
Volume Requirements
Effective pH Operating Range
Impact on pH
Impact on Conductivity
Potential microbial resistance
Three: Oxidation, Oligodynamic, and Synergistic effects
> 1 year
Oxygen, water, non-toxic silver complexes
2 - 9
None
None
None
One: Oxidizing only
7 days
Chlorates, Chlorites, Chloroamines, Trihalomethanes (THM)
5.5 - 7.5
Acid addition required to adjust
Yes
Yes
Sanosil Chlorine Bleach
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
NaClO Dose
NaClO Dose
Days
Dosa
ge (p
pm)
Mor
talit
y ra
te (%
)
NaClO Dose
NaClO Dose
NaClO Dose
Sanosil DoseSanosil DoseSanosil DoseSanosil Dose
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
NaClO % Bacteria Mortality Sanosil % Bacteria Mortality NaClO Dosage ppm Sanosil Dosage ppm
Bacterial Control Comparing Sodium Hypochlorite (NaClO) and Sanosil in Make-up Water + 1000ppm Glycol
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Days
Dosa
ge (p
pm)
Mor
talit
y ra
te (%
)
NaClO Dose
NaClO Dose
NaClO Dose
Sanosil DoseSanosil DoseSanosil DoseSanosil Dose
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Algae Control Comparing Sodium Hypochlorite (NaClO) and Sanosil in Make-up Water +1000ppm Glycol
NaClO Dose
NaClO Dose
NaClO % Bacteria Mortality Sanosil % Bacteria Mortality NaClO Dosage ppm Sanosil Dosage ppm
BEFORE
AFTER
BEFORE
AFTER
Water Usage
Corrosion
Turbidity
Bacteria Count
Initial Stabilization Period
• Eradicate gross microbiological contamination
• Reverse corrosion trend
• Dislodge biofilm, reduce algae and bacteria counts
Secondary Stabilization
• Consume organic matter
• Continue to clean and stabilize system
Optimization Period
• Complete elimination of biofilm
• Dosage optimization
• Overall chemical treatment reduction
Maintenance Period
• Maintain low bacteria levels
• Ongoing efforts in cost reduction and water management
Slug Dose
Slug Dose
Slug Dose
Initial Feed Dosing as Needed To Gain Microbiolgical Control
Slug Dose
Time
Dosage
FOR SUPERIOR WATER TREATMENT IN HEAVILY FOULED SYSTEMS*
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