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dc.contributor.author
Peluffo, Marina
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dc.contributor.author
Pardo, F.
dc.contributor.author
Santos, A.
dc.contributor.author
Romero, A.
dc.date.available
2018-10-04T15:58:37Z
dc.date.issued
2016-09
dc.identifier.citation
Peluffo, Marina; Pardo, F.; Santos, A.; Romero, A.; Use of different kinds of persulfate activation with iron for the remediation of a PAH-contaminated soil; Elsevier Science; Science of the Total Environment; 563-564; 9-2016; 649-656
dc.identifier.issn
0048-9697
dc.identifier.uri
http://hdl.handle.net/11336/61673
dc.description.abstract
Contamination of soils by persistent pollutants is considered an important matter of increasing concern. In this work, activated persulfate (PS) was applied for the remediation of a soil contaminated with polycyclic aromatic hydrocarbons (PAHs), such as anthracene (ANT), phenanthrene (PHE), pyrene (PYR) and benzo[a]pyrene (BaP). PS activation was performed by different ways; where ferric, ferrous sulfate salts (1–5 mmol·L− 1) and nanoparticles of zerovalent iron (nZVI) were used as activators. Moreover, in order to improve the oxidation rate of contaminants in the aqueous phase, the addition of sodium dodecyl sulfate (SDS), as anionic surfactant, was tested. On the other hand, it was also studied the role of humic acids (HA), as reducing agent or surfactant, on PAHs conversion. Removal efficiencies near 100% were achieved for ANT and BaP in all the runs carried out. Nevertheless, remarkable differences on removal efficiencies were observed for the different techniques applied in case of PHE and PYR. In this sense, the highest conversions of PHE (80%) and PYR (near 100%) were achieved when nZVI was used as activator. Similar results were obtained when activation was carried out either with Fe2 + or Fe3 +. This can be explained by the presence of quinone type compounds, as 9,10-anthraquinone (ATQ), that can promote the reduction of Fe3 + into Fe2 +, permitting PS radicals to be generated. On the other hand, the addition of HA did not produce an improvement of the process while surfactant addition slightly increases the PAHs removal. Furthermore, a kinetic model was developed, describing the behavior of persulfate consumption, and contaminants removal under first order kinetics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Activated Persulfate
dc.subject
Pahs
dc.subject
Soil Remediation
dc.subject
Surfactant
dc.subject
Zerovalent Iron Nanoparticles
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Use of different kinds of persulfate activation with iron for the remediation of a PAH-contaminated soil
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-03T17:44:56Z
dc.journal.volume
563-564
dc.journal.pagination
649-656
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Peluffo, Marina. 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: Pardo, F.. Universidad Complutense de Madrid; España
dc.description.fil
Fil: Santos, A.. Universidad Complutense de Madrid; España
dc.description.fil
Fil: Romero, A.. Universidad Complutense de Madrid; España
dc.journal.title
Science of the Total Environment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.scitotenv.2015.09.034
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S004896971530694X
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