Impregnanted Activated carbon

For special applications and targeted treatment goals for specific compounds, impregnated activated carbon may be the alternative to non impregnated, standard coal or coconut shell based carbon types. They are suitable for both air and water purification applications with unique customer demands.

Impregnated activated carbon is produced by chemically modifying the active surfaces of the porous particles. It can be applied to both granular (GAC) and pelletized carbon types. Impregnation will greatly enhance the adsorption capacity of target contaminants which are otherwise difficult to remove, such as polar compounds or inorganic molecules like hydrogen sulfide. Surface impregnation may involve a fine distribution of chemical or metal or metal oxide particles on the carbon surface.

In water treatment applications, silver impregnated carbon also provides anti-microbial effects and is a perfect choice for earth-bound compounds. In air treatment applications, it is often used for hydrogen sulfide (H2S) removal in biogas plants, pump stations or anaerobic or septic tanks at wastewater treatment plants. For industrial exhaust or flue gas applications, activated carbon can be impregnated to target acid gases, ammonia, amines, aldehydes, hydrogen fluoride, mercury, arsine or phosphine.