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

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.

主权项

1. A combined bioreactor for wastewater treatment, through anaerobic, aerobic and anoxic processes of organic matter degradation with zone separator system and biogas, scum and sludge collection, wherein the combined biorector comprises an anaerobic zone in the bottom where the wastewater to be sanitized is feed, where degradation of organic matter from wastewater is encouraged by the action of anaerobic bacteria that produce biogas (CH4 and CO2) and the little generated is deposited to the bottom which is extracted through one perforated pipe located on the bottom of the bioreactor; an anoxic or transition zone in the medium, for the water from the anaerobic zone together with a quantity of recirculation water from an aerobic zone, with growth of denitrifying bacteria that convert nitrates from the recirculation stream to gaseous nitrogen in presence of carbon compounds contained in the water; and aerobic zone at the upper part where at least one biological contact rotor is disposed, which performs degradation of organic matter remaining from the water and in the final stages allows the growth of different nitrifying bacteria that convert ammonia nitrogen to nitrites and then to nitrates; wherein said tank has a plurality of rhomboid shaped separators for biogas, sludge and scum collection that joint together form an intermediate polyhedral separator panel, attached and supported on a plurality of intermediate columns and beams implemented in the tank; said separators joined together define a plurality of conical collectors with upper connecting nozzles of ducts from a biogas and scum capture and conduction network and a plurality of collecting funnels with lower cylindrical connecting nozzles where are connected a ducts from a sludge capture and conduction network.