Feedwater Treatment Packages

Section 9.0

Feedwater Treatment Packages

Boiler feedwater must be of high quality, all contaminants that would damage the boiler or steam turbines must be removed from the feedwater stream. There are generally three areas of concern. First, the water must be free from solids such as sand or other contaminants. Second, dissolved minerals such sodium and potassium must be removed. Third, non-condensable gases such as oxygen and carbon dioxide must be removed. The removal of these contaminants requires a three stage removal plan.

First, all water entering the boiler system should be filtered. Second, the water should pass through a water softener unit of some type and third, chemicals will be added to the water to assist in the removal of the non-condensable gases and other contaminants.

Feedwater packages are designed for each individual application when an analysis of the water to be used for the boiler feedwater is available. In cases where the analysis is not available the feedwater treatment package will include the following equipment: