Show simple item record

dc.contributor.authorYacoub López, Cristina
dc.contributor.authorMiralles Esteban, Núria
dc.contributor.authorValderrama Angel, César Alberto
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.coverage.spatialeast=-79.39750671386719; north=-7.322968018089985; name=Conca del Jequetepeque, Perú
dc.date.accessioned2015-06-10T11:21:32Z
dc.date.available2015-09-25T00:30:47Z
dc.date.created2015-04-03
dc.date.issued2015-04-03
dc.identifier.citationYacoub, C.; Miralles, N.; Valderrama, C. Experimental study of mobility and kinetic characterization of trace elements in contaminated sediments from a river basin in Northern Peru. "Human and ecological risk assessment", 03 Abril 2015, vol. 21, núm. 3, p. 828-844.
dc.identifier.issn1080-7039
dc.identifier.urihttp://hdl.handle.net/2117/28251
dc.description.abstractIn the Jequetepeque basin (Peru), gold extraction activity has been performed in the last decades, leading to a release of metals and metalloids into the environment. Sediment samples were taken in the vicinity of two mines and analyzed. Extraction of metals and metalloids from sediments was carried out using single extraction procedures, acidic (HNO3), and complexation (EDTA) leaching, in order to determine the mobility of trace elements. Results indicated that acidic extraction at low pH values increased the leachability of trace elements. EDTA showed a higher bioavailability of metals in sediments than acidic extraction under similar pH conditions because of its greater leaching capacity. This is an important issue in view of risk assessment analysis. The highest extractability was observed for Cd in all sediments with up to 90% of extraction after 1h. The mobility index analysis indicated that faster kinetic leachability of some trace elements leads to a higher mobility in sediments, especially those near the active gold extraction mine. The ecological risk assessment suggested that the four river sediments were at high and very high risk levels, indicating that sediment contamination is an issue of environmental concern in the Jequetepeque basin of northern Peru.
dc.format.extent17 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshSediments (Geology)
dc.subject.lcshHeavy metals
dc.subject.lcshJequetepeque River (Peru)
dc.subject.othermobility index
dc.subject.othersingle-extraction procedures
dc.subject.otherEDTA
dc.subject.otherdiffusion coefficient
dc.subject.otherecological risk index
dc.subject.othersediments
dc.subject.otherSEQUENTIAL EXTRACTION
dc.subject.otherHEAVY-METALS
dc.subject.otherACTIVATED CARBON
dc.subject.otherRISK-ASSESSMENT
dc.subject.otherSW SPAIN
dc.subject.otherSOILS
dc.subject.otherPOLLUTION
dc.subject.otherSINGLE
dc.subject.otherEXTRACTABILITY
dc.subject.otherMOBILIZATION
dc.titleExperimental study of mobility and kinetic characterization of trace elements in contaminated sediments from a river basin in Northern Peru
dc.typeArticle
dc.subject.lemacSediments (Geologia) -- Transport
dc.subject.lemacMetalls pesants -- Absorció i adsorció
dc.subject.lemacConques hidrogràfiques -- Perú
dc.contributor.groupUniversitat Politècnica de Catalunya. EScGD - Engineering Sciences and Global Development
dc.contributor.groupUniversitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.identifier.doi10.1080/10807039.2014.939571
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.tandfonline.com/doi/abs/10.1080/10807039.2014.939571#.VIraodKG-So
dc.rights.accessOpen Access
drac.iddocument15343488
dc.description.versionPostprint (author’s final draft)
upcommons.citation.authorYacoub, C.; Miralles, N.; Valderrama, C.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameHuman and ecological risk assessment
upcommons.citation.volume21
upcommons.citation.number3
upcommons.citation.startingPage828
upcommons.citation.endingPage844


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain