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| - **physical adsorption**. The carbon itself attracts pollutants. Specially formulated binders used in compressed carbon blocks can avoid masking the surface of the carbon, thereby optimizing its ability to reduce levels of pollutants. | - **physical adsorption**. The carbon itself attracts pollutants. Specially formulated binders used in compressed carbon blocks can avoid masking the surface of the carbon, thereby optimizing its ability to reduce levels of pollutants. | ||
| - | Filters a usually rated by size of the particles it can remove. Typical ratings are from 50 micron (least effective) to 0.5 micron (most effective). We generally use 5 micron carbon blocks in our systems, because it gives us very effective absorption capabilities in combination with acceptable water flow rates. | + | Filters a usually rated by size of the particles it can remove. Typical ratings are from 50 micron (least effective) to 0.5 micron (most effective). We generally use 10 micron carbon blocks in our systems, because it gives us very effective absorption capabilities in combination with acceptable water flow rates. |
| - | ===== Compressed vs. Extruded ===== | ||
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| - | Carbon block is manufactured using one of two processes: extrusion or compression molding. | ||
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| - | * Extruded carbon blocks are manufactured using a mixture of carbon, binder and other media that is forced through a die to form a continuous block. The block is then trimmed to size. | ||
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| - | * Compressed carbon blocks are manufactured individually in a mold under great pressure and high heat. | ||
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| - | Advantages of compression molding: | ||
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| - | - more consistent filtration properties | ||
| - | - more porous binder material can be used, resulting in superior performance and increased capacity when comparing same sized blocks | ||
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| ===== Raw Material Selection ===== | ===== Raw Material Selection ===== | ||
carbon.1553008230.txt.gz · Last modified: 2019/03/19 15:10 by thierry
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