Water Filtration Media: How it Works

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Water Filtration Media How it Works
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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.
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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.
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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.
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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.
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