Activated carbon removes taste and odor compounds from water primarily through a molecular mechanism called adsorption. Activated carbon is a highly porous material, meaning it contains an intricate network of tiny channels and voids called pores. These pores are categorized by size: macropores (largest), mesopores, and micropores (smallest, often comparable in size to the molecules being removed). This extensive internal pore structure provides an enormous surface area for interactions, which is crucial for its effectiveness. The taste and odor compounds in water are typically organic molecules, which are often non-polar or only slightly polar, and relatively small in size. When water containing these compounds passes through activated carbon, the compounds are drawn out of the water and onto the carbon's surface. This process of adher....
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