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dc.contributor.authorGibert Agulló, Oriol
dc.contributor.authorPablo Ribas, Joan de
dc.contributor.authorCortina Pallás, José Luís
dc.contributor.authorAyora Ibáñez, Carlos
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2010-09-21T11:24:37Z
dc.date.available2010-09-21T11:24:37Z
dc.date.created2010-08
dc.date.issued2010-08
dc.identifier.citationGibert, O. [et al.]. In situ removal of arsenic from groundwater by using permeable reactive barriers of organic matter/limestone/zero-valent iron mixtures. "Environmental geochemistry and health", Agost 2010, vol. 32, núm. 4, p. 373-378.
dc.identifier.issn0269-4042
dc.identifier.urihttp://hdl.handle.net/2117/8998
dc.description.abstractAbstract In this study, two mixtures of municipal compost, limestone and, optionally, zero-valent iron were assessed in two column experiments on acid mine treatment. The effluent solution was systematically analysed throughout the experiment and precipitates from both columns were withdrawn for scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffractometry analysis and, from the column containing zero-valent iron, solid digestion and sequential extraction analysis. The results showed that waters were cleaned of arsenic, metals and acidity, but chemical and morphological analysis suggested that metal removal was not due predominantly to biogenic sulphide generation but to pH increase, i.e. metal (oxy)hydroxide and carbonate precipitation. Retained arsenic and metal removal were clearly associated to co-precipitation with and/or sorption on iron and aluminum (oxy)hydroxides. An improvement on the arsenic removal efficiency was achieved when the filling mixture contained zero-valent iron. Values of arsenic concentrations were then always below 10 lg/L.
dc.format.extent6 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.lcshAcid mine drainage
dc.subject.lcshPermeable reactive barriers
dc.subject.lcshGroundwater--Purification--Arsenic removal
dc.titleIn situ removal of arsenic from groundwater by using permeable reactive barriers of organic matter/limestone/zero-valent iron mixtures
dc.typeArticle
dc.subject.lemacAigües subterrànies -- Contaminació
dc.contributor.groupUniversitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.identifier.doi10.1007/s10653-010-9290-1
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.springerlink.com/content/n63475j102n56h18/
dc.rights.accessRestricted access - publisher's policy
drac.iddocument2603438
dc.description.versionPostprint (published version)
upcommons.citation.authorGibert, O.; De Pablo, J.; Cortina, J.; Ayora, C.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameEnvironmental geochemistry and health
upcommons.citation.volume32
upcommons.citation.number4
upcommons.citation.startingPage373
upcommons.citation.endingPage378


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