Integrated hydroponic and fixed-film wastewater treatment systems and associated methods
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United States of America Patent
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Nov 2, 2004
Grant Date -
Jun 19, 2003
app pub date -
Nov 14, 2002
filing date -
Nov 14, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The wastewater treatment systems have a plurality of treatment modules between the inlet and the outlet, each for treating water with a selected process. Influent is directed to a fixed-film reactor. Water then flows to a hydroponic reactor, in which aquatic plants are suspended atop the liquid for achieving aquatic-root-zone treatment. A filtration device removes any remaining suspended solids following the hydroponic reactor. Recycling may occur to the fixed-film reactor to enhance nitrogen removal from one or both of the hydroponic reactor and the filtration device.
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