Activated granular carbon

Activated granular carbon

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Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Activated refers to the micro porosity of carbon granules processed with steam or chemicals. 1 gram of activated carbon has a surface area in excess of 500 metres squared for adsorption, the adhesion of atoms, ions, biomolecules or molecules of gas, liquid, or dissolved solids to a surface. Granulated carbons are used for water treatment and deodorization. Activated carbon is usually derived from charcoal, wood or coconut shells and the granules are screened to provide a uniform size of granules. The granules in this picture are between 2 and 6 millimetres long.

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Keywords: activated, activated charcoal, activated coal, active, adsorption, atoms, biomolecules, carbo activatus, charcoal, chemistry, coconut shell, gas, granular, granules, ions, liquid, molecules, particle size, surface area, wood

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