Patent ID: 7022233
Filing Date: 2006-04-04
Classification: C02F,Y02W,Y10S

Abstract:
1. A biologically active reactor system for the treatment of wastewater, the system comprising: one or more submerged denitrification reactors, the reactors comprising upright walls defining at least one compartment and a floor, the compartment comprising a media bed, the media bed comprising coarse, uniformly sized mineral media particles and a fixed biological film comprising biologically anoxic active microorganisms; one or more submerged aerated filters comprising biologically aerobic microorganisms for oxidation of organic matter in fluid communication with the submerged denitrification reactor; the media bed of the submeraed denitrification reactor comprising media particles ranging in size from about 9 mm to 45 mm in diameter; and one or more deep bed denitrification filters for removal of suspended solids and denitrification of oxidized nitrogens, the deep bed denitrification filter in fluid communication with the submerged aerated filter.