INTEC 05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Quantum Efficiencies of the Photo-Fenton Degradation of Atrazine in Water
Autor/es:
BENZAQUEN, T.B.; ISLA, M.A.; ALFANO, O.M.
Revista:
WATER SCIENCE AND TECHNOLOGY
Editorial:
I W A PUBLISHING
Referencias:
Año: 2012 vol. 66 p. 2209 - 2216
ISSN:
0273-1223
Resumen:
An
experimental work in a well-stirred batch recycling reactor for the
photo-Fenton degradation of atrazine in water is presented. A study of the
quantum efficiency is performed to assess the effectiveness of the photo-Fenton
process on the atrazine degradation and total organic carbon (TOC)
mineralization. Apparent and absolute quantum efficiencies of degradation and
mineralization of an atrazine-based commercial herbicide are determined under
different experimental conditions. Higher apparent efficiencies were found for
both atrazine degradation and TOC mineralization when the ferric ion and
hydrogen peroxide concentrations are increased. Because of the well known stability
of the triazine ring, atrazine was not completely mineralized by the
photo-Fenton process. However, a TOC reduction of 40% was achieved, being 62.5%
of the maximum value that can be reached.
