Gross pollutant trap
AssigneeBaramy Engineering Pty. Ltd.
InventorPeter Joseph Bennett
Life of this patent
Estimating the term…
Abstract
A growth pollutant trap (50) to be installed in a storm water channel so as to receive storm water flowing through the channel and to filter growth pollutants from the storm water. The trap (50) includes a growth pollutant collection area (61) toward which there extends generally parallel sets (63) and (67) of veins (64) and (68). The area (61) is at least partly defined by a mesh wall (72) through which water returns to the storm water channel.
Claims9
a gross pollutant trap to be installed in a storm water channel, said trap including:
- a channel portion to receive storm water from the storm water channel and to return to the storm water channel storm water from which at least some gross pollutants have been removed, said channel portion including a floor from which there upwardly extends a first side channel wall on one side of the channel portion and a second side channel wall spaced from said first side channel wall so that said floor is located therebetween;
- a collection area adjacent said first channel wall, said collection area being adapted to receive gross pollutants removed from storm water delivered to the pollutant trap;
- a first set of vanes extending upwardly from said floor at a position upstream of said collection area, said first set of vanes being arranged in a row which is generally linear and extending downstream from said second wall at an acute angle thereto towards said first wall but terminating at a distance spaced from said first wall;
- a second set of vanes extending upwardly from said floor, said second set of vanes being arranged in a row which are generally linear, said second set of vanes extending downstream at an acute angle to said second wall but being spaced therefrom and extending toward said collection area;
- a drainage wall extending from said first wall to a downstream portion of said second set so as to least partly define said collection area so that water may flow from said collection area through said drainage wall to be delivered to said stormwater channel;
- and wherein
- said first and second sets of vanes are spaced but overlap in the general direction of flow of water through the channel portion and direct water to said collection area.
Preferably said drainage wall is formed of metal mesh. More preferably said metal mesh is expanded metal mesh. In a further preferred form the drainage wall is provided by vertically extending bars.
Dependencies are inferred from the claim text.