Elevated swale for treatment of contaminated stormwater
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United States of America Patent
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Oct 16, 2012
Grant Date -
Aug 12, 2010
app pub date -
Jan 26, 2010
filing date -
Feb 10, 2009
priority date (Note) -
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Abstract
An elevated swale comprising a porous and water-permeable interior zone, a permeable and compressible exterior shell, and vertically oriented cylindrical inserts. The exterior shell surrounds the interior zone, and the cylindrical inserts are placed within cylindrical cavities that are cut vertically into the interior zone. In an alternate embodiment, the present invention is an elevated swale comprising stacked layers of polymer matting and vertically oriented cylindrical inserts. The cylindrical inserts are placed within cylindrical cavities that are cut vertically into the stacked layers of polymer matting.
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