METHOD FOR TREATING WATERS BY MEANS OF A BIOLOGICAL REACTOR IN WHICH THE SPEED OF CONTINUOUSLY INJECTABLE AIR IS ADJUSTABLE AND CORRESPONDING DEVICE

摘要

A method of treating wastewater wherein the biomass associated with the wastewater is subjected to simultaneous nitrification and denitrification in a single reactor. The method entails directing a wastewater influent stream into the reactor and measuring the concentration of N-NH₄ in the influent wastewater stream at a point upstream from the reactor. Air is supplied to the reactor for aerating the biomass in the reactor. The method includes controlling the quantity of air introduced into the reactor based in part at least on the measured concentration of N-NH₄.