Runoff water filtration apparatus
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United States of America Patent
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-
Jan 3, 2012
Grant Date -
Oct 29, 2009
app pub date -
Apr 23, 2008
filing date -
Apr 23, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A runoff water filter is defined by an elongate, tubular mesh container filled with a filter medium that is selected for the ability of the filter medium to remove target pollutants from the runoff water. In a first disclosed embodiment, vermiculite is used as the primary filter medium for its ability to bind cationic compounds, principally zinc, from water running off metal buildings. Other filter media may also be employed to remove other target pollutants.
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