ACTIVATED CARBON Introduction Activated carbon is the generic term used to describe a family of carbonaceous adsorbents with a highly crystalline form and extensively developed internal pore structure. Many natural substances of base material is used to make activated carbon. The most common of these are wood, coal, legnite and coconut shell. For drinking water purposes, coconut shell is the ideal base material. Coconut shell-based is predominately microporous and is well suited for organic chemical adsorption, including volatile organic chemicals while having higher chlorine reduction capabilities. Coconut shell carbon is known to make good tasting "sweetﾓ water.

FX®-greencarbon™and FX®greenblock ® are 100% coconut shell carbon.

Activation Process The process of activation and good process controls are vital in the manufacture of good quality activated carbon that gives consistent high level of porosity. The process of activation includes first carbonization of the shell, which is achieved by slow heating in the absence of oxygen to form carbonaceous mass full of tiny pores.This carbonized base material is then activated at high temperature (1100 degree C) in steam with regulating oxygen and carbon dioxide levels. Activation temperature and the amount of activation (time) are important to create internal pore network and to impart certain surface chemistries (functional group) inside each particle.In essence, the total activation process gives carbon the unique adsorption characteristics.

Filtrex unlike other manufactures, have the total activation, including ,carbonization of the shell as a part of our manufacturing process. This total control enables us to produce consistently high quality activated carbon.