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Water filtration media function by removing impurities and contaminants from water through various physical and chemical processes. These media can include activated carbon, sand, gravel, and ceramic materials, each targeting specific pollutants such as sediment, chemicals, and odors. As water passes through the media bed, undesirable particles adhere to the media surface or are trapped within its porous structure, resulting in cleaner and safer drinking water.
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Water Filtration Media: How it Works
Physical Filtration Filtration media, like sand, gravel, or ceramic, physically trap larger particles suspended in water as it passes through. This process removes sediment, debris, and some larger organisms.
Adsorption Some filtration media have surfaces that attract and retain contaminants through adsorption. Activated carbon, for instance, has a porous structure that can capture organic compounds, chemicals, and some metals by chemically bonding to their surfaces.
Ion Exchange Certain filtration media use ion exchange processes to remove dissolved ions from water. Ion exchange resins, for example, can replace undesirable ions in the water with more benign ions, effectively softening the water or removing specific contaminants like heavy metals.
Biological Action Biological filtration media, such as certain types of sand or porous stones, provide a habitat for beneficial bacteria that can metabolize and break down organic pollutants in the water. This process helps to naturally purify water by converting harmful substances into less harmful forms.
