Rehabilitating Gravity Filters

A dual parallel lateral configuration in a media filter underdrain offers advantages in effective backwashing and efficient filtration.
Rehabilitating Gravity Filters
Flat-bottom flume

Granular filter media (effective sizes from 0.5 to 1.5 mm) generally remove particles larger than 7 to 10 percent of the smallest grains. Most water treatment applications try to remove color and all solids greater than 10 to 20 microns. Smaller particles are removed with the...

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