PROCEDURE THAT USES WATER WITH STRONG CONTENT IN AMMONIA FOR THE SELECTION AND ENRICHMENT OF NITRIFYING MICRO-ORGANISMS INTENDED FOR NITRIFICATION OF WASTEWATER.

摘要

Method for the biological treatment of wastewater by micro-organisms for the separation of organic matter and by other micro-organisms for nitrification, which comprises. possible pre-treatment of said wastewater such as by sieving and / or sedimentation, passing said wastewater to a treatment stream from an inlet to an outlet biological treatment of said wastewater in said treatment stream by the aforementioned treatment first micro-organisms for the transformation of organic matter into suspended matter, biological treatment of said wastewater in said treatment stream by said other micro-organisms for nitrification of ammonia to nitrite and nitrate, separation of said suspended matter that It includes the aforementioned micro-organisms of said wastewater such as biological sludge recirculation of said biological sludge in a recirculation stream at said inlet of said biological treatment, whereby there is a low content of organic matter and ammonia in the recirculation stream, aeration or other form of oxygenation of l cited biological sludge in an aerobic reactor located in the circulation stream. characterized by the feed of water rich in ammonia to said recirculation current or upstream of the sludge aeration reactor.