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dc.creatorBolaños Picado, Dayatri Vanessa
dc.creatorMasís Mora, Mario Alberto
dc.creatorDurán Herrera, Esteban
dc.creatorPérez Mercado, Luís Fernando
dc.creatorLópez Vinent, Núria
dc.creatorCruz Alcalde, Alberto
dc.creatorÁlvarez Caero, María Mercedes
dc.creatorRodríguez Rodríguez, Carlos E.
dc.creatorSans Mazón, Carmen
dc.description.abstractBackground: This work studied the use of the organic fertilizers DTPA-Fe and EDDS-Fe as iron chelates for solar driven photo-Fenton process at natural pH. This process was proposed to investigate its performance on removing a mixture of agrochemicals (propiconazole, imidacloprid and diuron) from pineapple processing wastewater to obtain a suitable effluent to be reused in the agricultural sector. Methods: Experiments were carried out in a solar simulator with a stirred cylindric photoreactor, with a volume of 150 mL and controlled temperature (20°C). The first set of experiments was carried out with ultrapure water to determine optimal iron and H2O2 concentrations. The second was performed with simulated wastewater of pineapple processing. Results: The optimized operational conditions for both iron complexes were 10 mg L-1 of Fe (III) and 25 mg L-1 of H2O2 , since more than 80% of micropollutants (MP) (at an initial concentration of 1 mg L-1 of each compound) were removed in only 20 min with both DTPA-Fe and EDDS-Fe. The effect of organic matter and inorganic salts on radicals scavenging and chelates stability was also investigated in the experiments performed with synthetic pineapple processing wastewater. The results disclosed differences depending on the iron complex. Nitrites were the principal component influencing the tests carried out with EDDS-Fe. While carbonates at low concentration only significantly affected the experiments performed with DTPA-Fe, they were the major influence on the MPs removal efficiency decrease. In contrast, the presence of Ca2+ and Mg2+ only influence on this last one. Finally, the results of phytotoxicity disclosed the suitability of treated effluent to be reused in the agricultural sector. Conclusions: This work demonstrated that solar powered photo Fenton catalysed by iron fertilizer EDDS is a suitable technology for depolluting water streams coming from pineapple processing plants at circumneutral pH, and its subsequent reuse for crop irrigation.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[802-B7-508]/UCR/Costa Ricaes_ES
dc.description.sponsorshipUnión Europea/[690618]/EU/Europaes_ES
dc.rightsCC0 1.0 Universal*
dc.sourceOpen Research Europe, vol.2(105), pp. 1-16es_ES
dc.subjectPineapple wastewateres_ES
dc.subjectSolar-based processes_ES
dc.titleUse of organic fertilizers in solar photo-Fenton process as potential technology to remove pineapple processing wastewater in Costa Ricaes_ES
dc.typeartículo científicoes_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ingeniería::Facultad de Ingeniería::Escuela de Ingeniería Químicaes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro en Investigación en Contaminación Ambiental (CICA)es_ES

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CC0 1.0 Universal
Except where otherwise noted, this item's license is described as CC0 1.0 Universal