Importance

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Abstract

A stormwater filtration system includes a chamber structure with a treatment cell open at the top to atmosphere and a surrounding wall. A filter structure in the treatment cell includes an outer wall spaced from the surrounding wall of the treatment cell to provide a water collection and settling space between the two. The filter structure includes a media bed therewithin and a top portion exposed to atmosphere and defining a planting area. Live vegetative matter within the planting area includes a root system that extends down into the media bed of the filter structure for interaction with water passing through the media bed. An inlet to the treatment cell receives stormwater, which first enters the collection and settling space, then laterally enters the filter structure for passing through the media bed and in contact with the root structure, before exiting the filter structure.

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First Claim