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Peat-sand filter in United States. The filter treats stormwater runoff from a residential area. Stormwater from streets is first routed to a small det
Peat-sand filter in United States. The filter treats stormwater runoff from a residential area. Stormwater from streets is first routed to a small detention basin (rear of photo, behind berm), which removes coarse sediment. After filtration an under-drain piping system discharges the filtered water to an adjacent stream.
Media filter system for urban runoff
Media filter system for urban runoff
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Water filters produced in Toledo, Ohio in 1895 out of terracotta
Water filters produced in Toledo, Ohio in 1895 out of terracotta
A large-scale flocculation water filter
A large-scale flocculation water filter
Illustration of a slow sand filter
Illustration of a slow sand filter
Water purifier
Water purifier