INVESTIGADORES
ALFANO Orlando Mario
congresos y reuniones científicas
Título:
Procesos de Oxidación Avanzada y Biológico Acoplados para el Tratamiento de Aguas Contaminadas con Herbicidas
Autor/es:
BENZAQUEN, T.B.; ISLA, M.A.; ALFANO, O.M.
Reunión:
Congreso; 7º Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados, 1º Congresso Iberoamericano de Processos Oxidativos Avançados; 2013
Resumen:
Fenton and
photo-Fenton processes were investigated as photochemical pre-treatment to
improve the biodegradability of a wastewater containing a commercial pesticide:
atrazine. The effects of H2O2, Fe3+ and radiation level on the degradation
processes have been studied and the optimal conditions were found. Fenton and
photo-Fenton oxidation systems were able to reach 85 and 100% for removing the
atrazine, respectively, in a period of 120 min. However the cyanuric acid
remains in the effluent after the chemical oxidation treatment. Because of the
stability of the N-heterocyclic ring of cyanuric acid, chemical or
photochemical methods have shown inadequate to degrade it. For these reasons,
in this work, a biological process for the biodegradation of the stable
cyanuric acid was evaluated by microbial action in anaerobic conditions. The
obtained results indicate that a coupled PAO?biological treatment system is a
possible way to achieve the complete mineralization of ?