Activated carbon (also known as actived charcoal or activated coal) is a porous carbon that is derived from processing a variety of feedstocks including, coal, coconut shells, or wood. This porous carbon is useful for the absorption of unwanted organic, non-polar substances and is thus valuable as a filtration material, mainly for use with water purification, gas purification, air purification, metal extraction, gold recovery, sewage treatment, and even medicinal applications.

Activated Carbon is mainly produced in the three following forms:

Powdered Activated Carbon (PAC): This crushed or ground powder-like activated carbon is mainly used in liquid phase applications or gas treatment.

Granular Activated Carbon (GAC): Mainly used for drinking water filtration but also in gas and liquid applications. This type of AC has a larger particle size with a smaller external surface.

Extruded Activated Carbon:  Processed into pellet cylindrical shapes, this type of AC is mainly used for gas phase applications due to their low pressure drop, low dust content and high mechanical strength.

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