Sorption performance of quercus cerris cork with polycyclic aromatic hydrocarbons and toxicity testing
dc.contributor.author
dc.date.accessioned
2013-04-02T11:10:49Z
dc.date.available
2013-04-02T11:10:49Z
dc.date.issued
2011
dc.identifier.issn
1930-2126
dc.identifier.uri
dc.description.abstract
Quercus cerris is an important oak species extended in large areas of Eastern Europe and Minor Asia that has a thick bark which is not utilized at all. The sorption performance of cork from Quercus cerris bark with four polycyclic aromatic hydrocarbons (PAHs) (acenaphthene, fluorene, phenanthrene, and anthracene) was investigated. Quercus cerris cork was characterized for elemental analysis, acidic groups, and summative chemical composition, and the results were compared with Quercus suber cork. A Microtox® test was carried out to test for the release of any toxic compounds into the solution. All isotherms fit the Freundlich model and displayed linear n values. Quercus cerris exhibited a high efficiency for sorption of PAHs for the studied concentrations (5 to 50 µg/L) with 80-96% removal, while the desorption isotherms showed a very low release of the adsorbed PAHs (<2%). In relation to Quercus suber cork, KF values of Quercus cerris cork are about three times lower. The quantity of Quercus cerris cork required to reduce water pollution by PAHs was estimated to be less than twice the quantity of other adsorbents such as aspen wood and leonardite. Toxicity tests indicated that non-toxic compounds were released into the solution by the Quercus cerris and Quercus suber cork samples. Overall the results indicate the potential use of Quercus cerris cork and of Quercus suber cork as effective and economical biosorbents for the treatment of PAH-contaminated waters
dc.description.sponsorship
This research was funded by the Spanish Ministry of Science and Innovation as part of the project CTM CTM2010-15185
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
North Carolina State University
dc.relation
info:eu-repo/grantAgreement/MICINN//CTM2010-15185/ES/INVESTIGACION DEL PAPEL DE LOS BIOPOLIMEROS EN LA SORCION DE CONTAMINANTES ORGANICOS. ESTUDIO DEL CORCHO COMO NUEVO BIOSORBENTE./
dc.relation.ispartof
© BioResources, 2011, vol. 6, núm. 3, p. 3363-3375
dc.relation.ispartofseries
Articles publicats (D-EQATA)
dc.rights
Tots els drets reservats
dc.title
Sorption performance of quercus cerris cork with polycyclic aromatic hydrocarbons and toxicity testing
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.idgrec
014922
dc.contributor.funder
dc.relation.ProjectAcronym