ROLL-FORMED CONDUIT-ARCH FOR LEACH FIELD
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United States of America Patent
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Issued Date -
Jul 31, 2014
app pub date -
Jan 29, 2014
filing date -
Jan 29, 2013
priority date (Note) -
Abandoned
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Abstract
In an apparatus for disposing of wastewater in subsurface soil, corrosion-resistant wire-mesh is formed by profile-rolling into a conduit-arch skeletal framework with open floor and is covered with non-woven geofabric. This conduit, set in excavated trenches to form a leach field and is buried with permeable soil cover, allows dispersal of wastewater throughout the trenches without distribution pipe or crushed stone, and allows substantial evaporation from the trenches and substantial air infiltration into the trenches to encourage aerobic degradation of organics and ammonium. The wire-mesh is derived from easily available coils sold for wire-mesh fencing.
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