COMBINED BIOREACTOR FOR THE TREATMENT OF WASTE WATER, BY MEANS OF ANAEROBIC, AEROBIC AND ANOXIC PROCESSES OF DEGRADATION OF ORGANIC MATTER WITH ZONE SEPARATOR SYSTEM AND COLLECTION OF BIOGASES, SCUM AND SLUDGE

摘要

The invention relates to a bioreactor for digestion of organic matter in waste water, comprising an anaerobic zone on the bottom where organic matter is degraded by anaerobic bacteria which produce biogas, an anoxic zone in the middle where denitrifying bacteria convert nitrates into gaseous nitrogen, and an aerobic zone in the upper part with a biological contact rotor, where nitrifying bacteria convert ammoniacal nitrogen into nitrites and nitrates. The bioreactor comprises a plurality of separators of rhomboidal section which define a plurality of conical collectors which, when combined, form a polyhedral separator panel, each conical collector comprising a nozzle that connects it to a biogas network or to a sludge and scum network.