METHOD FOR BIODEPOLLUTING EFFLUENTS WITH HIGH CONCENTRATIONS OF POLLUTANTS, AND STRAIN SELECTION PROCESS USABLE WITH SAID METHOD

摘要

A method for biodepolluting (or biologically purifying) effluents with high concentrations of organic pollutants and/or mineral elements capable of being oxidised or reduced by bacteria is described, wherein the mixed depolluting bacteria population used is selected and grown from samplings of the effluents to be treated, in culture media containing said effluents. The method is particularly a biological denitrification method for effluents containing high nitrate concentrations using mixed denitrifying bacteria populations. A process for selecting an efficient mixed bacteria population for biodepolluting effluents is also described, in particular a mixed denitrifying bacteria population wherein the selection and culture medium is made up of the effluents to be treated themselves.