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Boiler water treatment

Boiler water treatment

Boiler water treatment

(OP)
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

RE: Boiler water treatment

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.

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