Constructed wetlands to control nonpoint source pollution
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorRobert J. Wengrzynek
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Abstract
The construct containing in hydraulic order a sediment basin, level-lip spreader, grassy filter, wetland, and deep pond can be used to remove pollutants from nonpoint source runoff. Wetlands are planted with vegetation that encourages growth of aerobic and anaerobic bacteria which are helpful in removing and detoxifying contaminants.
Claims20
A constructed control system for removing contaminants from water comprising, in hydraulic order, a constructed sediment basin, a constructed level-lip spreader, and a constructed grassed filter.
A method of treating nonpoint runoff comprising constructing, in hydraulic succession, a sediment basin, a level-lip spreader and a spreader across a grassed filter and causing the runoff to successively pass therethrough.
Dependencies are inferred from the claim text.