ANOXICO-ANAEROBIO BIOLOGICAL REACTOR FOR THE ELIMINATION OF WASTEWATER NUTRIENTS

Biological reactor (1) for elimination of nutrients from wastewater characterized by being vertically subdivided into three zones, anoxic (3), anaerobic (2) and clarification (4), which fulfill the functions of biological elimination of organic matter and phosphorus, denitrification and decantation. Increasing wastewater flow when the entrance (13) occurs in the lower anaerobic zone, and exit (14) in the upper clarification zone. It must be installed preceding another aerobic process for nitrification and refining of organic matter whose effluent is recirculated to produce the anoxic conditions. It has systems for mixing and agitation of anaerobic and anoxic zones, and recirculation of solids between both. The necessary facilities for wastewater treatment with elimination of nutrients are reduced and simplified. There is no consumption of reagents. It optimizes the use of organic matter from wastewater. An effluent with low pollutant load is obtained. (Machine-translation by Google Translate, not legally binding)