Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/41901
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Rosales, E. | por |
dc.contributor.author | Meijide, J. | por |
dc.contributor.author | Tavares, T. | por |
dc.contributor.author | Pazos, M. | por |
dc.contributor.author | Sanromán, M. A. | por |
dc.date.accessioned | 2016-06-07T10:53:08Z | - |
dc.date.available | 2016-06-07T10:53:08Z | - |
dc.date.issued | 2016-05 | - |
dc.identifier.citation | Villanueva, E.; Meijide, J.; Tavares, T.; Currás, M.; Sanromán, M. A., Grapefruit peelings as a promising biosorbent for the removal of leather dyes and hexavalent chromium. Process Safety and Environmental Protection, 101, 61-71, 2016 | por |
dc.identifier.issn | 0957-5820 | por |
dc.identifier.uri | https://hdl.handle.net/1822/41901 | - |
dc.description.abstract | The objective of this study was to find a suitable and versatile agroforestry waste as alternative low-cost biosorbents for the removal of inorganic and organic compounds present in the wastewater of tannery industry [leather dyes and Cr(VI)]. Grapefruit peelings, fern, eucalyptus barks, oak leaves and cane pruning of grapevines were evaluated as biosorbents. Among them, grapefruit peelings showed the best results reaching 45 and 55% for the mixture of dyes and Cr(VI), respectively. A significant improvement in the performance of this biosorbent was obtained when it was pretreated with H2O2 (1M) attaining the highest removal capacity of 80% and 100%, respectively. This biosorbent was characterised showing an adsorption capacity of 1.1003meq/g and pHZPC 3.48. The adsorption working parameters, kinetics and isotherms were deeply studied in order to scale up the process to a continuous treatment system. Adsorption isotherms data fitted well to the Langmuir model with a maximum uptake of 37.427mg/g for dyes mixture and 39.0628mg/g for Cr(VI). Finally, the dynamic behaviour of the system, operating at different flow rates, was evaluated using a Homogeneous Surface Diffusion Model. Pretreated grapefruit peelings demonstrated to be a suitable low-cost biosorbent in the treatment of wastewater of tannery industry. | por |
dc.description.sponsorship | This work has been funded by the Spanish Ministry of Economy and Competitiveness, Xunta de Galicia and ERDF Funds (Projects CTM 2011-25389 and GRC 2013/003). The authors are grateful to Xunta de Galicia for financial support of the researcher Emilio Rosales under a postdoctoral grant and the Spanish Ministry of Economy and Competitiveness for financial support of the researcher Marta Pazos under a Ramón y Cajal grant. | por |
dc.language.iso | eng | por |
dc.publisher | Institution of Chemical Engineers (IChemE) | por |
dc.rights | openAccess | por |
dc.subject | Grapefruit peelings | por |
dc.subject | Adsorption | por |
dc.subject | Tannery effluent | por |
dc.subject | H2O2 | por |
dc.subject | Pretreatment | por |
dc.subject | H O 2 2 | por |
dc.title | Grapefruit peelings as a promising biosorbent for the removal of leather dyes and hexavalent chromium | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.psep.ichemejournals.com/ | por |
dc.comments | CEB37927 | por |
sdum.publicationstatus | info:eu-repo/semantics/publishedVersion | por |
oaire.citationStartPage | 61 | por |
oaire.citationEndPage | 71 | por |
oaire.citationConferencePlace | United Kingdom | - |
oaire.citationTitle | Process Safety and Environmental Protection | por |
oaire.citationVolume | 101 | por |
dc.date.updated | 2016-06-05T15:15:50Z | - |
dc.identifier.eissn | 1744-3598 | - |
dc.identifier.doi | 10.1016/j.psep.2016.03.006 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Process Safety and Environmental Protection | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_37927_1.pdf | 1,26 MB | Adobe PDF | Ver/Abrir |