Outline of Internal Treatment Control and Programs

Functional areas within the boiler plant system where internal chemical treatments are employed include  

For any specific boiler plant, good control also may necessitate the use of certain other conjunctional treatments to support the primary chemical treatments such as sodium nitrate for protection against embrittlement. 

NOTE Control over some problems, such as the supersaturation of dissolved solids, short-term and long-term overheating, and boiler priming (surging), relies as much on good operation as on the use of appropriate chemical treatments. 

Internal treatments for BW are chemical formulations having potentially beneficial single-function, dual-function, or multifunctional effects. Globally, many thousands of BW formulations are available, and for the most part, each may be loosely classified into one or another type of commonly recognized chemical program, as described below. 

In addition to full- or part-treatment formulations (boiler compounds), the art and science of BW treatment usually requires the application of certain primary functional chemicals and secondary functional chemicals (adjuncts) to provide a comprehensive program, as outlined below  

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