BIOLOGICAL AMMONIUM REMOVAL VIA NITRITE PATHWAY

The main aim of this study is to introduce to the operational strategies of partial nitrification in order to accumulate NO2-N in the effluent water of the biological reactor. In order to perform nitritation and denitritation process, nitrite oxidation should be controlled without affecting the AOB and NOB must be adapted to high concentrations of NO2-N. Accumulation of NO2-N in the effluent water can be achieved by controlling the NOB activity by operating the biological reactor at convenient pH, temperature, DO concentrations, and SRT.