Charcoal activated by heating to 800-900ºC to form a material of high adsorptive capacity for many gases, vapors, organics, etc. Has a large internal surface area (approx 1,000 m2/g). Commonly used in the pharmaceutical industry to remove Related to or derived from a living organism. Always contains carbon. contaminants. Can be used either as an additive in granular form which is then filtered out or as a filter In filtration, the material through which fluid passes in the process of filtration and which retains particles. Also, the nutrients containing solutions in which cells or microorganisms are grown.... in a The process by which particles are removed from a fluid by passing the fluid through a permeable material.... device itself.