Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kashi Banerjee0
Charles D. Blumenschein0
Phillippe Sauvignet0
Date of Patent
June 4, 2013
Patent Application Number
13042652
Date Filed
March 8, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for treating wastewater comprises biologically treating the wastewater in a fixed-biomass biological reactor and then treating the wastewater in a ballasted flocculation system. The ballasted flocculation system produces a clarified effluent and sludge containing inert granular material having biomass accumulated thereon and suspended solids. The inert granular material having biomass accumulated thereon is separated from the suspended solids and then cleaned with a cleaning solution. After separating the biomass from the cleaned inert granular material, the cleaned inert granular material is recycled for use in the ballasted flocculation system.
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