Sulfite Closed Loop Water Treatment 1

[275ENGINEER]

Does anyone have experience using sulfite to treat chilled water and hot water in closed loops?

If so, do you like using sulfite over nitrite?

Any common problems associated with using sulfite?

 

[imok2]

Sodium sulfite-caustic soda programs have been used successfully in many closed systems. The sulfite residual should be maintained between 30 to 60 ppm with sufficient caustic soda added to adjust the pH to within 9.3 to 9.5. This is an effective approach when properly applied. It is less expensive than other options, and presents few disposal problems. This treatment method is compatible with glycol.

If the closed system has leaks allowing air inside, the sulfite will be consumed at a rapid rate. Continued addition of more sulfite will cause an increase in the total dissolved solids.For more infomation go here:

http://www.watertechonline.com/article.asp?IndexID=5230109

 

[275ENGINEER]

Thanks for the info!