Wastewater treating system
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United States of America Patent
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Mar 10, 2009
Grant Date -
Jan 17, 2008
app pub date -
Mar 7, 2007
filing date -
Jul 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A wastewater treating system includes: a vessel defining a vessel space therein, the vessel space being partitioned into an activated sludge zone that is adapted to receive waste water and a body of an activated sludge therein, and a coarse filtering zone that is disposed downstream of and that is in fluid communication with the activated sludge zone for receiving bio-treated wastewater from the activated sludge zone; and a bed of biomass carriers colonized with microorganisms and disposed in the coarse filtering zone for further bio-treating the bio-treated wastewater from the activated sludge zone and for separating coarse suspended solids from the bio-treated wastewater in the coarse filtering zone.
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