EFFECT OF NITRATE RECYCLE AND SYNTHETIC DETERGENTS ON THE EFFICIENCY OF BIOLOGICAL WASTEWATER TREATMENT

The results of complex numerical experiment on quantitative parameters of the processes of biological treatment of wastewater containing synthetic detergents from organic compounds in anoxic and aerobic bioreactors are presented, taking into account the rate of nitrate recycle. The decrease the internal recycle rate increase the time of wastewater treatment in the bioreactors for achieve complete biological wastewater treatment, but increase the rate of internal recirculation in increase concentrations of synthetic detergents and dissolved organic pollutants is showed.