RestoreAir 2.2 Passivation of Activated Carbon in Ash - Technical Bulletin

Headwaters Developed the Concept of Carbon Passivation Technology over 15 years ago to deal with unburned carbon in ash resulting from low NOx burners. The original technology was deployed at power plants to treat ash with 3% to 6% unburned carbon. Activated carbon is more adsorptive than unburned carbon and can significantly interfere with air entrainment in concrete at levels as low as 0.1% in ash. This second generation technology has been developed to deal with the more adsorptive and low levels of activated carbon.