Stormwater treatment apparatus and method
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United States of America Patent
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Feb 21, 2006
Issued Date -
N/A
app pub date -
Oct 8, 2003
filing date -
Jan 19, 2000
priority date (Note) -
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Abstract
A liquid purification and separation apparatus for separation of pollutants in stormwater runoff is disclosed. This apparatus utilizes gravitational separation and tortuosity, resulting from a plurality of baffles both perpendicular to and oblique to the primary water flow direction, to trap substances less-dense and more-dense than water. The apparatus features improved resistance to pollutant remobilization through treatment of water volume rather than flow rates, using vertically stacked water columns of varying depths to settle small particles. An overflow structure diverts excessive liquid without interfering with purification and separation, and can be placed integrally within or external to the apparatus receptacle.
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