Combined photo-Fenton and biological oxidation for pesticide degradation: effect of photo-treated intermediates on biodegradation kinetics |
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| Authors: | Ballesteros Martín M M Sánchez Pérez J A Acién Fernández F G Casas López J L García-Ripoll A M Arques A Oller I Malato Rodríguez S |
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| Affiliation: | Departamento de Ingeniería Química, Universidad de Almería, 04120 Almería, Spain. mmenta@ual.es |
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| Abstract: | ![]()
Biodegradability of a partially photo-oxidized pesticide mixture is demonstrated and the effect of photo-Fenton treatment time on growth and substrate consumption of the bacteria Pseudomonas putida CECT 324 is shown. Four commercial pesticides, laition, metasystox, sevnol and ultracid, usually employed in citric orchards in eastern Spain, were chosen for these experiments. The active ingredients are, respectively, dimethoate, oxydemeton-methyl, carbaryl and methidathion. Judging by biomass measurements, dissolved organic carbon measurements and biodegradation efficiency, it may be concluded that 90min
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