| 21. | A pyrolysis method which produces activated carbon and high-grade carbon black has been suggested.
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| 22. | The facility produces in excess of 100 million pounds of granular activated carbon annually.
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| 23. | Coconut shells produce activated carbon with more micropores than does charcoal made from wood.
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| 24. | The simplest type of aquarium filter consists only of filter wool and activated carbon.
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| 25. | As such, it cannot be removed by activated carbon and travels easily through soils.
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| 26. | Since it is often not recycled, the mercury-laden activated carbon presents a disposal dilemma.
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| 27. | For the aquarist, replacing the activated carbon with fresh material is simple and inexpensive.
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| 28. | In 1965 the Calgon Corporation acquired Pittsburgh Activated Carbon.
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| 29. | Additional elements may be added such as activated carbon, zeolites, and materials that accumulate pollutants.
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| 30. | The remaining water is then processed through activated carbon and used to rehumidify treated soil.
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