Abstract: The present invention relates to a high-precision, high-efficiency recirculation system for preserving multiple-density biomass and attached biofilm in wastewater treatment bioreactors, which is characterized in that it consists of a bioreactor tank in which a central recirculation duct is centrally and vertically disposed, said duct comprising a diffuser cone at the bottom thereof, close to the bottom of a baffle of the bioreactor, and an upper guide cone at the upper end thereof, wherein the central recirculation duct is designed for an inductor/nozzle to be inserted there into up to the limit of the upper wall of the bioreactor baffle, said parts forming together a central assembly containing, in vertical attitude, a drive shaft which comprises, at the upper end thereof, above the inductor/nozzle, sealing means for hermetic sealing at the upper wall of the bioreactor baffle, wherein the upper end of the drive shaft is coupled to a low-revolution motor reducer for rotating the drive shaft, which comprises o

Abstract: The present invention relates to a shaft/frame system for high capacity rotors for wastewater treatment for sanitation purposes and to reduce the pollutant organic load; of the type formed by a drive shaft with supports at the ends and for its coupling to a drive motor, comprising a plurality of intermediate annular collars and two end annular collars distributed equidistantly from one another, adapted to fixedly receive a plurality of radially distributed structural arms, characterized in that said structural arms are substantially T-shaped and are joined each other to form rings adapted to receive and fix each other, packs of media consisting of a plurality of biomass support sheets, which are self-supported by four tubes fixed in T-shaped structural elements; wherein said tubes are hollow, and internally accommodate a volume of air and are obturated at both ends by means of plugs, with one or more threaded blind bore(s) adapted to receive the fixation means, with which it is fixed to the T-shaped structura

Abstract: A bioreactor for anaerobic, aerobic and anoxic digestion of organic matter from wastewater, having a bottom anaerobic zone where the wastewater is fed where anaerobic bacteria produces biogas and the sludge produced is deposited on the bottom and subsequently extracted. An anoxic middle zone contains denitrifying bacteria which converts nitrates to nitrogen, and an aerobic zone at the upper part where at least one biological contact rotor is disposed, which degrade organic matter remaining in the water. The growth of nitrifying bacteria converts ammonia nitrogen into nitrites and nitrates. The tank has a plurality of rhomboids for biogas, sludge and scum collection that join together form a intermediate polyhedral separator panel. The rhomboids joined together define conical collectors with connecting nozzles of ducts from a capture and conduction network of biogas and funnel-shaped manifolds with connecting nozzles of ducts that define a capture and conduction network of sludge and scum.

Abstract: The present invention relates to a shaft/frame system for high capacity rotors for wastewater treatment for sanitation purposes and to reduce the pollutant organic load; of the type formed by a drive shaft with supports at the ends and for its coupling to a drive motor, comprising a plurality of intermediate annular collars and two end annular collars distributed equidistantly from one another, adapted to fixedly receive a plurality of radially distributed structural arms, characterized in that said structural arms are substantially T-shaped and are joined each other to form rings adapted to receive and fix each other, packs of media consisting of a plurality of biomass support sheets, which are self-supported by four tubes fixed in T-shaped structural elements; wherein said tubes are hollow, and internally accommodate a volume of air and are obturated at both ends by means of plugs, with one or more threaded blind bore(s) adapted to receive the fixation means, with which it is fixed to the T-shaped structura

Abstract: A bioreactor for anaerobic, aerobic and anoxic digestion of organic matter from wastewater, having a bottom anaerobic zone where the wastewater is fed where anaerobic bacteria produces biogas and the sludge produced is deposited on the bottom and subsequently extracted. An anoxic middle zone contains denitrifying bacteria which converts nitrates to nitrogen, and an aerobic zone at the upper part where at least one biological contact rotor is disposed, which degrade organic matter remaining in the water. The growth of nitrifying bacteria converts ammonia nitrogen into nitrites and nitrates. The tank has a plurality of rhomboids for biogas, sludge and scum collection that join together form a intermediate polyhedral separator panel. The rhomboids joined together define conical collectors with connecting nozzles of ducts from a capture and conduction network of biogas and funnel-shaped manifolds with connecting nozzles of ducts that define a capture and conduction network of sludge and scum.