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Boiler Water Chemistry
P.T.P.INLET |
Unit |
LIMIT |
pH |
|
7.2-8.5 |
TDS |
ppm |
<3500 |
T.Hardness |
ppmasCaCO3 |
<1200 |
Chloride |
ppmasCaCO3 |
<1400 |
Turbidity |
NTU |
<10 |
Silica |
ppm as SiO2 |
<45 |
Ca-H |
ppm asCaCO3 |
<1000 |
T.Alkalinity |
ppmasCaCO3 |
<800 |
P.T.P.OUTLET |
Unit |
LIMIT |
PH |
|
9.5-11.5 |
TDS |
ppm |
<3500 |
T.Hardness |
ppmasCaCO3 |
<1200 |
Ca-H |
ppmasCaCO3 |
<1000 |
Chloride |
ppmas Cl |
<1400 |
Turbidity |
NTU |
<10 |
Silica |
ppm as SiO2 |
<30 |
T.Alkalinity |
ppm asCaCO3 |
<800 |
FRC |
|
<1.0 |
Ist RO DMF O/L |
Unit |
LIMIT |
Turbidity |
NTU |
<4.0 |
Res.Chlorine |
ppm |
<1.0 |
SDI |
– |
< 6 |
C.F. O/L SDI |
– |
< 6 |
RO-I Feed |
Unit |
LIMIT |
PH |
|
5.0-7.0 |
TDS |
ppm |
<3500 |
Turbidity |
NTU |
<1.0 |
RO-IÂ Product |
Unit |
LIMIT |
PH |
– |
<7.0 |
TDS |
ppm |
<500 |
COND. |
uS/CM |
<1000 |
RO-IÂ Reject |
Unit |
LIMIT |
PH |
– |
<7.5 |
TDS |
ppm |
<18000 |
Silica |
ppm as SiO2 |
<250 |
DM Tank |
Unit |
LIMIT |
PH |
– |
8.5-9.5 |
COND |
us/cm |
<10 |
Silica |
ppm as |
<0.05 |
C.T.Make up |
Unit |
LIMIT |
PH |
|
6.0-8.5 |
TDS |
ppm |
<900 |
T.Hardness |
ppmasCaCO3 |
<300 |
Ca-H |
ppmasCaCO3 |
<210 |
Chloride |
ppmasCaCO3 |
<500 |
Turbidity |
NTU |
<1.0 |
T.Alkalinity |
ppmasCaCO3 |
<25 |
CT Circu,Water |
 Unit |
LIMIT |
PH |
|
7.0-8.8 |
TDS |
ppm |
<5000 |
T.Hardness |
ppmasCaCO3 |
<1500 |
Ca-H |
ppmasCaCO3 |
<1000 |
Chloride |
ppmasCaCO3 |
<2500 |
Turbidity |
NTU |
<10 |
Silica |
ppm as SiO2 |
<150 |
Phosphate |
ppm as PO4 |
8-10 |
T.Alkalinity |
ppmasCaCO3 |
<450 |
Temp |
Deg. Cent. |
<50 |
Recycle Tank |
 Unit |
LIMIT |
PH |
– |
<9.0 |
TDS |
ppm |
<15000 |
Chloride |
ppmasCaCO3 |
<8000 |
Turbidity |
NTU |
<50 |
Temp |
D Cent. |
<50 |
2nd R.O SCR |
 Unit |
LIMIT |
PH |
– |
9.5-11 |
Turbidity |
NTU |
<15 |
Silica |
ppm as SiO2 |
<35 |
RO-2 FEED |
Unit |
LIMIT |
PH |
– |
5.0-7.0 |
TDS |
ppm |
<12000 |
SDI |
– |
<4 |
FRC |
ppm |
NIL |
Turbidity |
NTU |
<1 |
RO-2 Product |
Unit |
LIMIT |
PH |
– |
<7.0 |
TDS |
ppm |
<1500 |
DMF turbidity |
Unit |
LIMIT |
|
NTU |
<5 |
Boiler water |
Unit |
LIMIT |
|
|
|
PH |
– |
9.5-10.5 |
COND |
us/cm2 |
<200 |
Silica |
ppm as SiO2 |
<5.0 |
P.Alkalinity |
ppmasCaCO3 |
<30 |
M.Alkalinity |
ppmasCaCO3 |
<60 |
Phosphate |
ppm as PO4 |
< 5 |
S.H.Stream |
Unit |
Limit |
PH |
– |
8.5-10 |
COND |
us/cm2 |
<25 |
Silica |
ppm as SiO2 |
<0.02 |
Feed water |
Unit |
Limit |
PH |
|
8.5-10.0 |
COND |
us/cm2 |
<25 |
Hydr. |
ppm |
<.1 |
Silica |
ppm as SiO2 |
<0.05 |
Condensate |
 Unit |
Limit |
PH |
– |
8.5-10.0 |
COND |
us/cm2 |
<25 |
Silica |
ppm as SiO2 |
<0.02 |
MB Out let |
Unit |
Limit |
PH |
– |
5.0-7.2 |
COND |
us/cm2 |
<0.5 |
Silica |
ppm as SiO2 |
<0.02 |
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