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carbon [2019/03/19 11:15] thierry |
carbon [2019/03/20 14:26] (current) thierry |
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| Activated carbon is utilized in water filtration in two basic forms: Granular Activated Carbon (GAC) and carbon block. | Activated carbon is utilized in water filtration in two basic forms: Granular Activated Carbon (GAC) and carbon block. | ||
| - | ===== Why Carbon Block is a Better Choice than Granule Active Carbon ===== | + | ===== Why Carbon Block is a better than Granule Active Carbon ===== |
| Carbon block is mainly comprised of activated carbon granules and a binding agent that allows the carbon granules to maintain a static position relative to each other. Carbon block immobilizes carbon particles, stopping water from channeling, achieving a higher effectiveness in contaminant reduction. | Carbon block is mainly comprised of activated carbon granules and a binding agent that allows the carbon granules to maintain a static position relative to each other. Carbon block immobilizes carbon particles, stopping water from channeling, achieving a higher effectiveness in contaminant reduction. | ||
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| - **mechanical filtration**. Carbon blocks can mechanically filter particles as small as one-half micron (submicron). | - **mechanical filtration**. Carbon blocks can mechanically filter particles as small as one-half micron (submicron). | ||
| - | - **electrokinetic absorption.** This process works as water passes through one outer wrap, which causes the material in the wrap to acquire a positive molecular charge that attracts negative ions of certain pollutants. | + | - **electrokinetic adsorption.** This process works as water passes through one outer wrap, which causes the material in the wrap to acquire a positive molecular charge that attracts negative ions of certain pollutants. |
| - | - **physical absorption**. 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 10 micron carbon blocks in our systems, because it gives us very effective absorption capabilities in combination with acceptable water flow rates. | ||
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| ===== Raw Material Selection ===== | ===== Raw Material Selection ===== | ||
carbon.1552994150.txt.gz · Last modified: 2019/03/19 11:15 by thierry
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