Filtration is the process of removing suspended solids from water by passing the water
through a permeable fabric or porous bed of materials. Groundwater is naturally filtered
as it flows through porous layers of soil. However, surface water and groundwater under
the influence of surface water is subject to contamination from many sources. Some
contaminants pose a threat to human health, and filtration is one of the oldest and
simplest methods of removing them. Federal and state laws require many water systems
to filter their water. Filtration methods include slow and rapid sand filtration, diatomaceous
earth filtration, direct filtration, packaged filtration, membrane filtration, and
cartridge filtration.
through a permeable fabric or porous bed of materials. Groundwater is naturally filtered
as it flows through porous layers of soil. However, surface water and groundwater under
the influence of surface water is subject to contamination from many sources. Some
contaminants pose a threat to human health, and filtration is one of the oldest and
simplest methods of removing them. Federal and state laws require many water systems
to filter their water. Filtration methods include slow and rapid sand filtration, diatomaceous
earth filtration, direct filtration, packaged filtration, membrane filtration, and
cartridge filtration.
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