Boiler water treatment

[kudzi]

Hello all

i work for a food manufacturing firm and we have been having problems with our boiler water quality. We are struggling to keep the OH and P alkalinities in spec, and this is not easy given that the water softener is down. given below are some of the results we have been obtaining.

May someone reccommend food grade chemicals or methods which we can apply to solve this problem. the boiler is a 12t/hr fire tube boiler.


Raw Water Analysis
Target Average
Hardness <500 100 120 120 113
TDS <1000 190 190 180 187
Conductivity 700-3000 390 480 500 457
pH 6.5-8.5 8.3 7.9 8.4 8


Boiler Water Analyisis
Target Average
Conductivity 5000 3170 4980 6000 4717
TDS 25800 1585 2490 2990 2355
Phosphates >40
Sulphites 15-50 10 8 8 9
OH Alkalinity 300-600 80 10.5 12.5 34
P Alkalinity 300-500 100 75 80 85
M Alkalinity 500-600 120 135 35 97
Hardness 0 0 34 92 42
pH 10.5-12.0 10.9 10.7 10.3 11

Thank you

 

[bimr]

The best thing that you can do is to get your water softener fixed.

There are also numerous firms that will supply and service rental water softeners in the meantime while your water softener is being repaired.

You should have a local chemical treatment sales rep. that services your plant. What does he say.

There is no magic bullet to remove hardness. It sounds like you are ruining your boiler.