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dc.contributor.author
Donadelli, Jorge Andrés  
dc.contributor.author
Berardozzi, Eliana  
dc.contributor.author
Carlos, Luciano  
dc.contributor.author
Garcia Einschlag, Fernando Sebastian  
dc.date.available
2021-09-17T15:48:26Z  
dc.date.issued
2020-06  
dc.identifier.citation
Donadelli, Jorge Andrés; Berardozzi, Eliana; Carlos, Luciano; Garcia Einschlag, Fernando Sebastian; Continuous treatment of an azo dye based on a combined ZVI/photo-Fenton setup. Process modelling by response surface methodology; Elsevier; Journal of Water Process Engineering; 37; 101480; 6-2020; 1-11  
dc.identifier.issn
2214-7144  
dc.identifier.uri
http://hdl.handle.net/11336/140714  
dc.description.abstract
The performance of a continuous system that sequentially couples a column filled with zero-valent iron with a photo-Fenton reactor was evaluated under mild acidic conditions. Studies were conducted to evaluate the better coupling strategy between each treatment module and to analyze the effects of several operational parameters on the system behaviour. The azo dye Acid Black 1 was chosen as model pollutant. Decolourization degrees and decreases of TOC values were used for the evaluation of the treatment performance under different conditions; whereas steady state concentrations of Fe(II), Fe(III) and H2O2 together with spectral features in the UV–vis region were analysed to elucidate mechanistic issues. The response surface methodology approach based on a central composite design was used to evaluate and model the effects of key factors on the decolourization degrees. Results show that the spatial separation between the ZVI and H2O2 may lead to substantial improvements of treatment efficiencies provided that configurations involving recirculation loops are avoided. Besides, a strict and continuous pH control during the oxidative stage is critical for obtaining a stable operation and acceptable decolourization efficiencies through the coupled system. The simple parameters developed from UV–vis spectra allowed monitoring the extent of reductive and oxidative transformation pathways. In addition, the statistical analysis shows that reactor pH and hydraulic residence time are the key factors influencing the system response, whereas initial pH and added oxidant concentration are much less significant. The conclusions drawn are relevant from a technological viewpoint since allow a rational design of cost-effective treatments.  
dc.format
application/pdf  
dc.language.iso
spa  
dc.publisher
Elsevier  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
AZO DYE  
dc.subject
CONTINUOUS-FLOW MODE  
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RESPONSE SURFACE METHODOLOGY  
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ZVI/FENTON  
dc.subject.classification
Otras Ingeniería Química  
dc.subject.classification
Ingeniería Química  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Continuous treatment of an azo dye based on a combined ZVI/photo-Fenton setup. Process modelling by response surface methodology  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2021-09-08T18:58:38Z  
dc.journal.volume
37  
dc.journal.number
101480  
dc.journal.pagination
1-11  
dc.journal.pais
Reino Unido  
dc.description.fil
Fil: Donadelli, Jorge Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina  
dc.description.fil
Fil: Berardozzi, Eliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina  
dc.description.fil
Fil: Carlos, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina  
dc.description.fil
Fil: Garcia Einschlag, Fernando Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina  
dc.journal.title
Journal of Water Process Engineering  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S2214714420303585  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.jwpe.2020.101480