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Trends in Chemical Engineering   Volumes    Volume 20 
Photocatalytic abatement of triazine and phenylurea herbicides in wastewater effluents using TiO2/Na2S2O8 and LED lamps as UV-A light source
Marina Aliste, Gabriel Pérez-Lucas, Abderrazak El Aatik, Ginés Navarro, José Fenoll, Simón Navarro
Pages: 61 - 67
Number of pages: 7
Trends in Chemical Engineering
Volume 20 

Copyright © 2022 Research Trends. All rights reserved

Spain, like most European countries, faces serious problems of pollution of its water resources. Currently, research is focused on the development of an effective, innovative and environmentally friendly treatment, such as heterogeneous photocatalysis, for the elimination of pollutant residues from these waters. In this work, the photocatalytic degradation of triazine (atrazine, simazine and terbuthylazine) and phenylurea (chlortoluron, diuron and isoproturon) herbicide residues was assessed in three different real wastewater effluents. A photochemical reactor was used to conduct the experiments at laboratory scale with TiO2/Na2S2O8 in water exposed to UV-A irradiation from light-emitting diode (LED) lamps. Herbicide residues were analysed by high performance liquid chromatography-tandem mass spectrometry (HPLC/MS2) and their degradation followed single first-order kinetics. Results showed that TiO2/Na2S2O8/UV-A/LED is a suitable alternative for tackling the removal of the studied herbicides from wastewater.
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