Estudio para la eliminación de Enterococos presentes en aguas de la industria piscícola mediante procesos de oxidación avanzada.

Abstract

In the present work the study of inactivation of Enterococcos faecalis in synthetic seawater at laboratory scale was carried out, using a continuous flow reactor of UV-C light, at different exposure times, the kinetics of elimination was determined; through advanced oxidation processes (UV, UV/H2O2, and UV/H2O2/Fe3+) at different concentrations. The results suggest good efficiency in terms of microbial disinfection; but at the statistical level most of the treatments did not show a significant difference in the kinetic mean, since the addition of the reagent in small ones does not increase the kinetics of elimination. However, performing several tests, the optimal reduction is achieved with the UV/H2O2/Fe3+ treatment with concentrations of 30 ppm of H2O2 and 6 ppm of Fe3+, which manages to reduce 99.999% bacterial concentration in a time of 36 seconds and that presents a significant increase in elimination kinetics 0.41 s-1. Therefore, this treatment is considered suitable for future evaluations of different water matrices.