Jacobi produces the highest quality activated carbon such as Aquasorb based on sustainable and fair sourcing of coconuts. One of the top activated carbon manufacturers in the world is Swedish Jacobi used by TAPP Water. Therefore the typical carbon blocks are between 1-5 micron. The problem with the smallest sizes is that the water flow ends up being reduced as even the water particles struggle to get through. Activated carbon in the form of carbon blocks on the other hand usually have a pore size of between 0.5 to 10 micron. Granular activated carbon (GAC) has no specific limit as the material is porous. Activated carbon can also be made of wood or coal and sold as granular activated carbon or carbon blocks.Īnother factor is the size of the particles that the filter will allow through as this provides a second defense. One factor is the quality of the activated carbon with coconut shells proven to have the best efficiency. In addition to the surface area active carbon filters may have different capabilities in terms of the size of contaminants they remove. Therefore most smaller active carbon filters should be used with low pressure and cold water. The effectiveness depends on the flow and temperature of the water. When the water flows through active carbon filters the chemicals stick to the carbon resulting in purer water output. It’s the massive surface area that allows active carbon filters to be very effective in adsorbing (essentially removing) contaminants and other substances. Just 4 grams of activated carbon has a surface area the equivalent of a football field (6400 sqm). How do activated carbon filters work?Īctivated carbon filters sometimes referred to as charcoal filters contain small pieces of carbon, in granular or block form, that have been treated to be extremely porous. Here’s a simple overview of how active carbon filters work, what they remove and the limitations. But how do they work and do you need one? Activated carbon filters are pretty miraculous in terms of their abilities to remove contaminants, odor and bad taste from tap water.
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