EFFECT OF SURFACTANTS ON DENITRIFICATION PROCESS IN BIOLOGICAL MUNICIPAL WASTEWATER TREATMENT

Authors

Abstract

The  biological nutrient removal  is  realized by  wastewater treatment in  anoxic, aerobic  bioreactors.  The amphiphilic xenobiotics groups of surfactants with membranotropic properties are affected on the activated sludge microorganisms and wastewater treatment efficiency from organic contaminants. In this article, the authors studied the effect of surfactants on  denitrification in wastewater anoxic  conditioning. The dependencies of denitrification kinetics  in anoxic bioreactors by varying the concentration of surfactants in wastewater  are determined.  The increasing concentrations of surfactants in wastewater to 30 mg/l  leads to  a delay the moment of flotation of activated sludge to 60% in anoxic conditions without mixing of activated sludge. The increasing the concentration of surfactants  in wastewater to 30 mg/l  leads to lower average specific denitrification rate by 48%  is determined according to the results of experiments in dynamic conditions.  
Keywords:  surfactants, denitrification, active sludge, treatment, technology, wastewater, kinetics, concentration.

Published

2016-05-10

How to Cite

, & . (2016). EFFECT OF SURFACTANTS ON DENITRIFICATION PROCESS IN BIOLOGICAL MUNICIPAL WASTEWATER TREATMENT. Municipal Economy of Cities, (126), 32–36. Retrieved from https://khg.kname.edu.ua/index.php/khg/article/view/4744