MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Activated refers to the micro porosity of carbon granules processed with steam or chemicals. 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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